COMMON WORK RESULTS FOR ELECTRICAL 26-0500-1 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) SECTION 26-0500 COMMON WORK RESULTS FOR ELECTRICAL PART 1 – GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. 1.2 SUMMARY A. This Section includes the following electrical materials and methods: 1. 2. 3. 4. 5. 6. 7. 8. 9. Sequencing and scheduling. Applicable Codes and Standards. Supporting devices and methods for electrical components. Concrete equipment bases. Electrical identification. Touchup painting. Building wire, connectors, and splices for branch circuits and feeders. Cutting and patching for electrical construction. Temporary lighting and power. B. Where the electrical (Div. 26/28) specifications list equipment or product(s) the Contractor shall provide the listed item(s). If, in the opinion of the Contractor, the listed item(s) is not required for the project (i.e., not indicated on the drawings), the Contractor shall request a ruling from the Architect. 1.3 ITEMS OF EQUIPMENT FURNISHED BY MECHANICAL TRADES A. The following items of equipment, where required, are specified in DIVISION 21/22/23 but shall be installed and connected under this division: 1. Variable frequency drives and control devices B. Note: Control sequences, operation and function of mechanical equipment is the responsibility of Division 21/22/23. Division 26 shall make power connections. Control contractor to furnish, pull and connect control conductors. 1.4 RECORD DRAWINGS A. Architect shall be provided with record drawings as specified in Division 1. B. Contractor shall maintain one set of full size drawings of work specified under Division 26/28 on the job site, marked to show as-built conditions. Upon completion of project, the contractor shall prepare record drawings as specified in Division 1. 1.5 SUBMITTALS A. General: Submit each item in this Article according to the Conditions of the Contract and Division 1 Specification Sections. COMMON WORK RESULTS FOR ELECTRICAL 26-0500-2 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) B. Product Data for each type of product specified. Submittals for panelboards and other major electrical equipment will be rejected if not accompanied by room layouts as required in D. C. Shop Drawings detailing fabrication and installation of supports and anchorage for electrical items. D. Coordination Drawings for electrical installation. 1. Prepare Coordination Drawings for all electrical rooms and closets and for the fire pump and standby generator rooms and for all major electrical equipment to a ¼inch-equals-1-foot (1:50) scale or larger. Detail and dimension major elements, components, and systems of electrical equipment and materials in relation to each other and to other systems, installations, and building components. Indicate locations and space requirements for installation, access, and working clearance. Include floor plans, elevations, and details as required to indicate: a) Clearances in accordance with NFPA 70 and local and state requirements, to meet safety requirements and for servicing and maintaining equipment, including space for equipment disassembly required for periodic maintenance. b) Equipment support details, including seismic bracing if required. c) Sizes and locations of required concrete pads and bases. 2. The equipment arrangements shown on the plans are based on dimensions from a specific manufacturer. Similar equipment from other acceptable manufacturers may have different dimensions or clearance requirements. It is the responsibility of the Contractor, prior to bid or proposal, to verify that the Contractor's selections for equipment will fit in the indicated spaces, with the required clearances. If customization or special construction of equipment or components is required to adapt an item to its indicated space or arrangement, that customization or special construction shall be included in the bid or proposal pricing. If customization, special construction, or changes to other building systems and components are required to install an item in its indicated space or arrangement, changes, including design fees if required, shall be included in the bid or proposal pricing. After the submission of a bid or proposal, any customization or special construction of equipment or components, or any change from one manufacturer to another, or any other cost that is required to satisfy space or clearance constraints shall be the responsibility of the Contractor, and shall result in no additional cost to the Owner. E. Where materials, equipment, apparatus or other products are specified by manufacturer, brand name, type or catalog number, such designation is to establish standards or desired quality and style and shall be the basis for products. Provide materials so specified under this contract, unless changed by mutual agreement. Refer to Division 2 for requirements for preapproval of alternates. 1.6 QUALITY ASSURANCE A. Comply with NFPA 70 for components and installation. B. Listing and Labeling: Provide products specified in this Section that are listed and labeled. COMMON WORK RESULTS FOR ELECTRICAL 26-0500-3 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) 1. The Terms “Listed and Labeled”: As defined in the National Electrical Code, Article 100. 2. Listing and Labeling Agency Qualifications: A “Nationally Recognized Testing Laboratory” (NRTL) as defined in OSHA Regulation 1910.7. C. Provide testing as specified in accordance with the InterNational Electrical Testing Association, Inc. (NETA), Acceptance Testing Specifications for Electrical Power Distribution Systems and Equipment- 1999. 1.7 SEQUENCING AND SCHEDULING A. Coordinate electrical equipment installation with other building components. B. Arrange for chases, slots, and openings in building structure during progress of construction to allow for electrical installations. C. Coordinate installing required supporting devices and set sleeves in cast-in-place concrete and other structural components as they are constructed. D. Sequence, coordinate, and integrate installing electrical materials, and equipment for efficient flow of the Work. Coordinate installing large equipment requiring positioning prior to closing in the building. E. Coordinate connection electrical service to components furnished by the Owner and under other Sections. F. Coordinate connecting electrical systems with exterior underground and overhead utilities and services. Comply with requirements of governing regulations, franchised utility and service companies, and controlling agencies. G. Coordinate requirements for access panels and doors where electrical items requiring access are concealed by finished surfaces. Access panels and doors are specified in Division 8 Section “Access Doors.” H. Coordinate installing electrical identification after completion of finishing where identification is applied to field-finished surfaces. I. 1.8 Coordinate installing electrical identifying devices and markings prior to installing acoustical ceilings and similar finishes that conceal such items. APPLICABLE CODES A. Perform work specified in Division 16 in accordance with the codes and standards listed below. Where the requirements of the plans and specifications exceed those of the listed codes and standards, the plans and specifications shall take precedence. Where the plans and specifications and listed codes are in conflict, obtain a ruling from the architect. Code editions shall be as adopted and interpreted by state and local authorities. If not adopted, use the latest edition. 1. 2. 3. 4. NFPA 70: National Electrical Code. NFPA 72: National Fire Alarm Code. NFPA 99: Healthcare Facilities. NFPA 101: Life Safety Code. COMMON WORK RESULTS FOR ELECTRICAL 26-0500-4 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) 5. 6. 7. 8. FGI Guidelines for Design and Construction of Hospitals and Healthcare Facilities Illinois Administrative Code ANSI Handicap Code – A117.1. The Code of Federal Regulations and Other Department of Justice requirements of the Americans with Disabilities Act. 9. International Building Code. 10. International Energy Conservation Code 1.9 INSTRUCTIONS TO OWNER A. Instruct owner in proper usage and care of the entire electrical system associated with this project. B. Provide and electronic copy of the O&M documentation package in searchable Adobe PDF format. C. The electrical contractor should maintain appropriate maintenance logs, where applicable, of all interim maintenance tasks performed on all started-up equipment, so that manufacturer’s warranties are not voided prior to the equipment being turned over to the owner. This log shall be submitted when the equipment is officially released to the owner. PART 2 – PRODUCTS 2.1 SUPPORTING DEVICES A. Channel and angle support systems, hangers, anchors, sleeves, brackets, fabricated items, and fasteners are designed to provide secure support from the building structure for electrical components. 1. Material: Steel, except as otherwise indicated, protected from corrosion with zinc coating or with treatment of equivalent corrosion resistance using approved alternative finish or inherent material characteristics. 2. Metal Items for Use Outdoors or in Damp Locations: Hot-dip Galvanized steel, except as otherwise indicated. B. Steel Channel supports have 9/16-inch (14-mm) diameter holes at a maximum of 8 inches (203 mm) o.c., in at least 1 surface. 1. Fittings and accessories mate and match with channels and are from the same manufacturer. C. Nonmetallic Channel Angle Systems: Structural-grade, factory-formed, fiberglass-resin channels and angles with 9/16-inch (14-mm) diameter holes at a maximum of 8 inches (203 mm) o.c., in at least 1 surface. 1. Fittings and accessories mate and match with channels or angles and are from the same manufacturer. 2. Fitting and Accessory Material: Same as channels and angles, except metal items may be stainless steel. COMMON WORK RESULTS FOR ELECTRICAL 26-0500-5 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) D. Raceway Cable Supports: Manufactured clevis hangers, riser clamps, straps, threaded C-clams with retainers, ceiling trapeze hangers, wall brackets, and spring steel clamps or “click – type” hangers. E. Sheet-Metal Sleeves: 0.0276-inch (0.7 –mm) or heavier galvanized sheet steel, round tube, closed with welded longitudinal joint. F. Pipe Sleeves: ASTM A 53, Type E, Grade A, Schedule 40, galvanized steel, plain ends. G. Expansion Anchors: Carbon- steel wedge or sleeve type. H. Toggle Bolts: All-steel springhead type. I. 2.2 Powder-Driven Threaded Studs: Heat-treated steel. CONCRETE EQUIPMENT BASES A. Forms and Reinforcing Materials: As specified in Division 3 section “Cast-in-Place Concrete.” B. Concrete: 3000-psi (20.7-MPa), 28-day compressive strength as specified in Division 3 Section “Cast-in-Place Concrete.” 2.3 ELECTRICAL IDENTIFICATION A. Manufacturer’s Standard Products: Where more than one type is listed for a specified application, selections is Installer’s option, but provide single type for each application category. Use colors prescribed by ANSI A13.1, NFPA 70, and these Specifications. B. Colored Adhesive Marking Tape for Raceways, Wires, and Cables: Self-adhesive vinyl tape not less than 3 mils thick by 1 inch wide (0.08 mm thick by 25 mm wide). C. Tape Markers: Vinyl or vinyl-cloth, self-adhesive, wraparound type with preprinted numbers and letters. D. Color-Coding Cable Ties: Type 6/6 nylon, self-locking type. Colors to suit coding scheme. E. Engraved, Plastic-Laminated Labels, Signs, and Instruction Plates: Engraving stock, melamine plastic laminate punched for mechanical fasteners 1/16- inch (1.6-mm) minimum thick. Engraved legend in white letters on colored face. F. Interior Warning and Caution Signs: Preprinted, aluminum, baked-enamel finish signs, punched for fasteners, with colors, legend, and size appropriate to the application. G. Exterior Warning and Caution Signs: Weather-resistant, nonfading, preprinted, cellulose acetate butyrate signs with 0.0396-inch (1-mm), galvanized steel backing, with colors, legend, and size appropriate to the application. 1/4 –inch (6.4-mm) grommets in corners for mounting. H. Fasteners for Plastic-Laminated and Metal Signs: Self-tapping stainless-steel screws or No. 10/32 stainless-steel machine screws with nuts and flat and lock washers. COMMON WORK RESULTS FOR ELECTRICAL 26-0500-6 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) I. Identify the electrical equipment as listed below with permanently attached black with white lettering (normal power), yellow with black lettering (life safety branch), orange with white lettering (critical branch), green with white lettering (equipment system), purple with white lettering (essential system – generator distribution) and red with white lettering (fire alarm) engraved plastic laminated plates. Lettering engraved on the face of each plate shall be 1/2" in height. Attach with sheet metal screws. Plates shall include the identifying information listed for each class of equipment. 1. Main switchboard a) b) c) d) e) Name Voltage Feeder conductor size Individually label each device in switchboard with name or description. Phasing relationship and rotation (clockwise - counter clockwise) 2. Panelboards a) b) c) d) e) f) Name System or branch Voltage Fed from (Panelboard or switchboard name, indicate transformer kVA if applicable) Feeder conductor size and sets if greater than one. Phasing relationship and rotation (clockwise – counter clockwise) 3. Transformers a) b) c) d) e) f) Name System or branch Voltage, primary/secondary Fed from (panelboard or switchboard name) Feeder conductor size and number of sets if greater than one. Phasing relationship and rotation (clockwise – counter clockwise) 4. Contactors, motor starters, safety switches and disconnects, and individually mounted circuit breakers. a) b) c) d) e) f) Name of load System or branch Voltage Fed from (Panelboard or switchboard name) Feeder conductor size and number of sets if greater than one. Phasing relationship and rotation (clockwise – counter clockwise) 5. Transfer switches. a) b) c) d) e) Name System or branch Voltage Fed from (Emergency and Normal sources) Feeder conductor sizes and number of sets if greater than one. Phasing relationship and rotation (clockwise – counter clockwise) COMMON WORK RESULTS FOR ELECTRICAL 26-0500-7 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) 6. Relays. a) b) Name of load Fed from (panelboard or switchboard name) 7. Shunt trip push buttons. a) b) c) J. Name of load Fed from (Panelboard or switchboard or individually mounted circuit breaker) Location of circuit breaker. Pull and junction boxes for emergency circuits shall be spot painted so they can be readily identified. Color as indicated below: 1. 2. 3. 4. 5. Life safety branch – yellow Critical branch – orange Equipment system – green Fire alarm system – red Other essential system supplied by the standby generator (not listed above) – purple. K. Switches: Where three or more switches and ganged, and elsewhere as indicated, identify each switch with approved legend engraved on wall plate or, in large rooms with multiple switches for general lighting the switch orientation shall match the location of the lights. L. Receptacles: Identify panelboard and circuit number from which served. Use durable wire markers, tags, or indelible ink on reverse side of plate. Provide permanent, laminated, engraved labels or engraved device cover plates for receptacles in patient care locations, identifying the panel name and branch circuit number. Labels and wire marker or tag samples must be approved by the owner and architect. Engraved labels for emergency system shall be red with white lettering. Normal system shall be black with white lettering. Lettering shall be 1/4” high. 2.4 TOUCHUP PAINT A. For Equipment: Provided by equipment manufacturer and selected to match equipment finish. B. For Non-equipment Surfaces: Matching type and color of undamaged, existing adjacent finish. C. For Galvanized Surfaces: Zinc-rich paint recommended by item manufacturer. PART 3 – EXECUTION 3.1 ELECTRICAL EQUIPMENT AND MATERIAL INSTALLATION REQUIREMENTS A. Install components and equipment to provide the maximum possible headroom where mounting heights or other location criteria are not indicated. B. Install items level, plumb, and parallel and perpendicular to other building systems and components, except where otherwise indicated. COMMON WORK RESULTS FOR ELECTRICAL 26-0500-8 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) C. Install equipment to facilitate service, maintenance, and repair or replacement of components. Connect for ease of disconnection, with minimum interference with other installations. D. Give right of way to raceways and piping systems installed at a required slope. E. Install wires in raceway according to manufacturer’s written instructions and NECA’s “Standard of Installation.” F. Conductor Splices: Keep to the minimum and comply with the following: 1. 2. 3. Install splices and taps that possess equivalent or better mechanical strength and insulation ratings than unspliced conductors. Use splice and tap connectors that are compatible with conductor material. Conductors shall not be spliced in panelboards or switchboards. G. Wiring at Outlets: Install with a t least 6 inches (300 mm) of slack conductor at each outlet. H. Connect outlets and components to wiring systems and to ground as indicated and instructed by manufacturer. Tighten connectors and terminals, including screws and bolts, according to equipment manufacturer’s published torque-tightening values for equipment connectors. Where manufacturer’s torquing requirements are not indicated, tighten connectors and terminals according to tightening requirements specified in UL 486A. I. Circuit terminations at motors shall be made with wire nuts and wing nuts. J. Install devices to securely and permanently fasten and support electrical components. K. Raceway Supports: Comply with NFPA 70 and the following requirements: 1. 2. 3. 4. 5. 6. 7. 8. Conform to manufacturer’s recommendations for selecting and installing supports. Install individual and multiple raceway hangers and riser clamps to support raceways. Provide U bolts, clamps, attachments, and other hardware necessary for hanger assembly and for securing hanger rods and conduits. Support parallel runs of horizontal raceways together on trapeze- or bracket-type hangers. Spare Capacity: Size supports for multiple conduits so capacity can be increased by a 25 percent minimum in the future. Support individual horizontal raceways with separate, malleable iron pipe hangers or clamps. Hanger Rods: ¼ (6-mm) diameter or larger threaded steel, except as otherwise indicated. Spring Steel Fasteners: Specifically designed for supporting single conduits or tubing. May be used in lieu of malleable iron hangers for 1-1/2-inch (38-mm) and smaller raceways serving lighting and receptacle branch circuits above suspended ceilings and for fastening raceways to channel and slotted angle supports. In vertical runs, arrange support so the load produced by the weight of the raceway and the enclosed conductors is carried entirely by the conduit supports, with no weight load on raceway terminals. COMMON WORK RESULTS FOR ELECTRICAL 26-0500-9 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) L. Miscellaneous Supports: Install metal channel racks for mounting cabinets, panelboards, disconnects, control enclosures, pull boxes, junction boxes, transformers, and other devices except where components are mounted directly to structural features of adequate strength. M. In open overhead spaces, cast boxes threaded to raceways need not be separately supported, except where used for fixture support; support sheet-metal boxes directly from the building structure or by bar hangers. Where bar hangers are used, attach the bar to raceways on opposite sides of the box and support the raceway with an approved fastener not more than 24 inches (610 mm) from the box. N. Sleeves: Install for cable and raceway penetrations of concrete slabs and walls, except where core-drilled holes are used. Install for cable and raceway penetrations of masonry and fire-rated gypsum walls and of all other fire-rated floor and wall assemblies. Install sleeves during erection of concrete and masonry walls. O. Firestopping: Apply to cable and raceway penetrations of fire-rated floor and wall assemblies. Perform firestopping as specified in Division 7. P. Fastening: Unless otherwise indicated, securely fasten electrical items and their supporting hardware to the building structure. Perform fastening according to the following: 1. 2. 3. 4. 5. 6. 7. 8. Fasten by means of wood screws or screw-type nails on wood; toggle bolts on hollow masonry units; concrete inserts or expansion bolts on concrete or solid masonry; and by machine screws, welded threaded studs, or spring-tension clamps on steel. Threaded studs driven by a power charge and provided with lock washers and nuts may be used instead of expansion bolts, machine screws, or wood screws. Welding to steel structure may be used only for threaded studs, not for conduits, pipe straps, or any other items. In partitions of light steel construction, use sheet-metal screws. Drill holes in concrete beams so holes more than 1-1/2 inches (38 mm) deep do not cut main reinforcing bars. Drill holes in concrete so holes more than ¾ inch (19 mm) deep do not cut main reinforcing bars. Fill and seal holes drilled in concrete and not used. Select fasteners so the load applied to any fastener does not exceed 25 percent of the proof-test load. Q. Install concrete pads and bases according to requirements of Division 3 Section “Castin-Place Concrete.” R. Install identification devices where required. 1. 2. 3. Install labels where indicated and at locations for best convenience of viewing without interference with operation and maintenance of equipment. Coordinate names, abbreviations, colors, and other designations used for electrical identification with corresponding designations indicated on the Contract Documents or required by codes and standards. Use consistent designations throughout the Project. Self-Adhesive Identification Products: Clean surfaces of dust, loose material, and oily films before applying. COMMON WORK RESULTS FOR ELECTRICAL 26-0500-10 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) 4. 5. 6. Tag or label power circuits for future connection and circuits in raceways and enclosures with other circuits. Identify source and circuit numbers in each cabinet, pull box, junction box, and outlet box. Color coding may be used for voltage and phase indication. For Panelboards, provide framed, typed circuit schedules with explicit description and identification of items controlled by each individual breaker. Description shall include room location for the device/equipment served. Coordinate final room numbers with the owner. All communications boxes shall be clearly labeled with the system enclosed. S. Contractor shall ensure that phasing and phase rotation are consistent throughout facility. 3.2 ELECTRICAL SUPPORTING METHODS A. Damp Locations and Outdoors: Hot-dip galvanized materials or non-metallic, U-channel system components. B. Dry Locations: Steel materials. C. Support Clamps for PVC Raceways: Click-type clamp system. D. Conform to manufacturer’s recommendations for selecting supports. E. Strength of Supports: Adequate to carry all present and future loads (where future loads are known: i.e. spare conduits), times a safety factor of at least 3; 200-lb- (90-kg-) minimum design load. 3.3 WIRE COUNTS A. Branch circuits do not have wire counts indicated on the drawings. The contractor shall provide phase conductors, neutrals, switch legs, and equipment grounding conductors as required for a complete, functional project. Neutral conductors shall not be used for more than one branch circuit, for more than one multiwire branch circuit or for more than one set of ungrounded feeder conductors unless specifically permitted by the National Electrical Code. All power/receptacle/lighting branch circuits (and switch legs) and all patient care area branch circuits shall have code-sized insulated equipment grounding conductors. Where 3-way or 4-way switching is not clear, contact the architect. 3.4 CUTTING AND PATCHING A. Cut, channel, chase, and drill floors, walls, partitions, ceilings and other surfaces necessary for electrical installations. Perform cutting by skilled mechanics of the trades involved. B. Repair disturbed surfaces to match adjacent undisturbed surfaces. 3.5 TOUCHUP PAINTING A. Thoroughly clean damaged area and provide primer, intermediate, and finish coats to suit the degree of damage at each location. COMMON WORK RESULTS FOR ELECTRICAL 26-0500-11 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) B. Follow paint manufacturer’s written instructions for surface preparation and for timing and application of successive coats. 3.6 TEMPORARY LIGHTING AND POWER A. Provide a temporary electrical lighting and power distribution system of adequate size to properly serve following requirements, including adequate feeder sizes to prevent excessive voltage drop. Temporary work to be installed in accordance with National Electrical Code Article 305. B. Provide service and panelboards required above for lighting and power outlets. C. Install and maintain barricade lighting where required to adequately protect against possible damage and injury. 3.7 TESTS A. Entire installation shall be free from improper grounds and from shorted and open circuits. Test to ensure that entire system is in proper operating condition. Include test results in closeout documents and forward to Architect/Engineer upon completion of test and prior to call for final observation. The following test shall be performed and submitted to engineer for evaluation: 1. Voltage and megger tests on feeder cabling. 2. Patient care area impedance and voltage testing and record in accordance with NFPA 99. B. The following tests shall be performed by the contractor or his designated supplier and shall be submitted prior to call for final observation: 1. Test operation of ALL receptacles while operating under generator power and include a letter verifying that all emergency receptacles are energized and normal receptacles are not when operating under generator power 2. Fire alarm operation and certification on NFPA 72 form. 3.8 FIRE RATED WALL PENETRATIONS A. Provide U.L. listed fire stop system sealants around all conduits passing through all rated walls or floors in accordance with the U.L Fire Resistance Directory. B. The selected system shall bear an approved U.L. penetration system number and be installed in accordance with the selected system taking into account the construction and rating of the assembly being penetrated and the type of penetration being made. 3.9 QUALITY ASSURANCE A. Electrical work shall be guaranteed against faulty material or workmanship for a period of not less than one year from the date of final acceptance. If the project is occupied or the systems placed into operation in several phases at the request of the Owner, then the guarantee of each system or piece of equipment used shall begin on the date each system or piece of equipment was placed in satisfactory operation and accepted as such, in writing, by the Owner. The use of building equipment for temporary service and testing does not constitute the beginning of the guarantee. COMMON WORK RESULTS FOR ELECTRICAL 26-0500-12 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) B. Equipment and material provided under this Division shall be periodically inspected and serviced by competent technicians. This function becomes the responsibility of the Owner when the system is accepted by the Owner. The one year material and workmanship guarantee is not intended to supplant normal inspection or service and shall not be construed to mean the Contractor will provide free service nor to correct without charge, breakage, maladjustment and other problems caused by improper maintenance. C. Any equipment provided under this Division shall be turned over to the Owner in operating condition. Instructions on further maintenance shall be included in the operating instructions. END OF SECTION CONDUCTORS & CABLES 26-0519-1 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) SECTION 26-0519 CONDUCTORS AND CABLES (600V and below unless otherwise indicated) PART 1 – GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. 1.2 SUMMARY A. This Section includes the following: 1. Building wires and cables rated 600 V and less. 2. Connectors, splices, and terminations rated 600 V and less. 3. Sleeves and sleeve seals for cables. 1.3 SUBMITTALS A. Product Data: For each type of product indicated. B. Qualification Data: For testing agency. C. Field quality-control test reports. 1.4 QUALITY ASSURANCE A. Testing Agency Qualifications: In addition to requirements specified in Division 1 Section “Quality Control,” an independent testing agency shall meet OSHA criteria for accreditation of testing laboratories, Title 29, Part 1907; or shall be a full-member company of the InterNational Electrical Testing Association (NETA). 1. Testing Agency’s Field Supervisor: Person currently certified by the InterNational Electrical Testing Association (NETA) or the National Institute for Certification in Engineering Technologies, to supervise on-site testing specified in Part 3. B. Listing and Labeling: Provide wires and cables specified in this Section that are listed and labeled. 1. The Terms “Listed” and “Labeled”: As defined in NFPA 70, Article 100. 2. Listing and Labeling Agency Qualifications: A “Nationally Recognized Testing Laboratory” as defined in OSHA Regulation 1910.7. C. Comply with NFPA 70 and ATSM specifications. D. Use only new wire and cable with size, grade or insulation, voltage and manufacturer’s name permanently marked on the outer covering at regular intervals. 1.5 DELIVERY, STORAGE, AND HANDLING CONDUCTORS & CABLES 26-0519-2 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) A. Deliver wires and cables according to NEMA WC26. B. Deliver in complete coils and reels, with attached tags identifying size and installation. C. Protect wire and cable from weather and damage during storage and handling. 1.6 COORDINATION A. Coordinate layout and installation of cables with other installations. B. Revise locations and elevations from those indicated, as required to suit field conditions and as approved by Architect. C. Set sleeves in cast-in-place concrete, masonry walls and other structural components as they are constructed. PART 2 –PRODUCTS 2.1 MANUFACTURERS A. Manufacturer: Subject to compliance with requirements, provide products by one of the following (for each type of product): 1. Wires and Cables: a) b) c) d) e) 2. Connectors for Wires and Cables: a) b) c) d) e) 2.2 Anaconda General Cable Okonite Rome Southwire Company AMP Incorporated General Signal; O-Z/Gedney Unit Monogram Co.; AFC Square D Co.; Anderson 3M Company; Electrical Products Division BUILDING WIRES AND CABLES A. UL-Listed building wires and cables with conductor material, insulation type, cable construction, and rating as specified in Part 3 “Wire and Insulation Applications” Article. B. Rubber Insulation Material: Comply with NEMA WC 3. C. Thermoplastic Insulation Material: Comply with NEMA WC 5. D. Cross-Linked Polyethylene Insulation Material: Comply with NEMA WC 7. CONDUCTORS & CABLES 26-0519-3 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) E. Wiring Methods (600V and below): Feeders, branch circuits, fire alarm circuits, and Class 2 and 3 control circuits shall be type THHN/THWN, copper conductor, in raceway, except as otherwise indicated. MC cable and AC cable shall not be used except as permitted under specification section 26 0533. F. Conductors for circuits outside building or in moist environments shall be type THWN. G. Conductor Material: Copper. H. Stranding: Solid conductor for No. 10 AWG and smaller; stranded conductor for larger than No. 10 AWG. Smaller stranded conductor shall be permitted for control and fire alarm. Provide stranded conductors for all motor circuits. I. 2.3 Cord Drops and Portable Appliance Connections: Type SO, hard service cord with stainless steel, wire mesh, strain relief device at terminations to suit application. CONNECTORS AND SPLICES A. UL-listed, factory-fabricated wiring connectors of size, ampacity rating, material, type, and class for application and service indicated. Comply with Project’s installation requirements and as specified in Part 2 “Building Wires and Cable” article. 2.4 SLEEVES FOR CABLES A. Steel Pipe Sleeves: ASTM A 53/A 53M, Type E, Grade B, Schedule 40, galvanized steel, plain ends. B. Cast-Iron Pipe Sleeves: Cast or fabricated "wall pipe," equivalent to ductile-iron pressure pipe, with plain ends and integral waterstop, unless otherwise indicated. C. Sleeves for Rectangular Openings: Galvanized sheet steel with minimum 0.052- or 0.138-inch (1.3- or 3.5-mm) thickness as indicated and of length to suit application. D. Sleeves for fire and/or smoke rated assemblies: Hilti Firestop sleeve or STI EZ-Path. Coordinate sleeve selection and application with selection and application of firestopping specified in Division 7 Section "Through-Penetration Firestop Systems." 2.5 SLEEVE SEALS A. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: B. Manufacturers: Subject to compliance with requirements, provide products by one of the following: C. Basis-of-Design Product: Subject to compliance with requirements, provide a product by one of the following: 1. Advance Products & Systems, Inc. CONDUCTORS & CABLES 26-0519-4 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) 2. Calpico, Inc. 3. Metraflex Co. 4. Pipeline Seal and Insulator, Inc. D. Description: Modular sealing device, designed for field assembly, to fill annular space between sleeve and cable. 1. Sealing Elements: EPDM or NBR interlocking links shaped to fit surface of cable or conduit. Include type and number required for material and size of raceway or cable. 2. Pressure Plates: Plastic, Carbon steel or Stainless steel. Include two for each sealing element. 3. Connecting Bolts and Nuts: Carbon steel with corrosion-resistant coating or Stainless steel of length required to secure pressure plates to sealing elements. Include one for each sealing element. PART 3 – EXECUTION 3.1 EXAMINATION A. Examine raceways and building finishes to receive wires and cables for compliance with requirements for installation tolerances and other conditions affecting performance of wires and cables. Do not proceed with installation until unsatisfactory conditions have been corrected. 3.2 INSTALLATION A. Install wires and cables as indicated, according to manufacturer’s written instructions and NECA’s “Standard of Installation.” B. Conceal cables in finished walls, ceilings and floors unless otherwise indicated. C. Remove existing wires from raceway before pulling in new wires and cables. D. Pull Conductors: Use manufacturer-approved pulling compound or lubricant where necessary; compound used must not deteriorate conductor or insulation. Do not exceed manufacturer’s recommended maximum pulling tensions and sidewall pressure values. E. Use pulling means, including fish tape, cable, rope, and basket-weave wire/cable grips, that will not damage cables or raceway. F. Unless otherwise noted, each conduit raceway shall contain only those conductors constituting a single feeder circuit. G. The maximum number of single phase branch circuits in a single raceway shall be limited to three as allowed by the N.E.C. H. Install pull boxes in circuits or feeders over 100’ long. CONDUCTORS & CABLES 26-0519-5 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) I. Make all splices and connections only at outlet, pull or junction boxes. J. Provide #10AWG conductors for any branch circuit in excess of 100’ linear length unless otherwise noted on the drawings. K. Install exposed cables parallel and perpendicular to surfaces of exposed structural members and follow surface contours where possible. L. Support cables according to Division 26 Section “Common Work Results.” M. Provide rated sleeves for cables penetrating fire and/or smoke rated elements according to this specification and Division 7 Section “Firestopping.” Coordinate size with number of cables to be routed through sleeve. Provide sleeves with 25% spare capacity. N. Color code conductors as follows: 1. 208Y/120V systems: a) b) c) d) e) Phase A, black Phase B, red Phase C, blue Neutral, white Ground, green 2. 480Y/277V systems: a) b) c) d) e) Phase A, brown Phase B, orange Phase C, yellow Neutral, gray Ground, green (Use factory color coded conductors where commercially available. Otherwise, use black conductors and band with colored electrical tape and pull at junction boxes and at terminations.) 3.3 CONNECTIONS A. Conductor Splices: Keep to minimum. Conductors shall not be spliced inside panelboards. B. Install splices and tapes that possess equivalent or better mechanical strength and insulation ratings than conductors being spliced. C. Use splice and tap connectors compatible with conductor material. D. Wiring at Outlets: Install conductor at each outlet, with at least 12 inches of slack. E. Connect outlets and components to wiring and to ground as indicated and instructed by manufacturer. CONDUCTORS & CABLES 26-0519-6 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) F. Tighten electrical connectors and terminals according to manufacturer’s published torque-tightening values. If manufacturer’s torque values are not indicated, use those specified in UL 486A and UL486B. 3.4 SLEEVE INSTALLATION FOR ELECTRICAL PENETRATIONS A. Coordinate sleeve selection and application with selection and application of firestopping specified in Division 7 Section "Through-Penetration Firestop Systems." B Concrete Slabs and Walls: Install sleeves for penetrations unless core-drilled holes or formed openings are used. Install sleeves during erection of slabs and walls. C. Use pipe sleeves unless penetration arrangement requires rectangular sleeved opening. D. Rectangular Sleeve Minimum Metal Thickness: 1. For sleeve rectangle perimeter less than 50 inches (1270 mm) and no side greater than 16 inches (400 mm), thickness shall be 0.052 inch (1.3 mm). 2. For sleeve rectangle perimeter equal to, or greater than, 50 inches (1270 mm) and 1 or more sides equal to, or greater than, 16 inches (400 mm), thickness shall be 0.138 inch (3.5 mm). E. Fire-Rated Assemblies: Install sleeves for penetrations of fire-rated floor and wall assemblies unless openings compatible with firestop system used are fabricated during construction of floor or wall. F. Cut sleeves to length for mounting flush with both wall surfaces. G. Extend sleeves installed in floors 2 inches (50 mm) above finished floor level. H. Size pipe sleeves to provide 1/4-inch (6.4-mm) annular clear space between sleeve and cable unless sleeve seal is to be installed or unless seismic criteria require different clearance. I. Seal space outside of sleeves with grout for penetrations of concrete and masonry and with approved joint compound for gypsum board assemblies. J. Interior Penetrations of Non-Fire-Rated Walls and Floors: Seal annular space between sleeve and cable, using joint sealant appropriate for size, depth, and location of joint according to Division 7 Section "Joint Sealants." K. Fire-Rated-Assembly Penetrations: Maintain indicated fire rating of walls, partitions, ceilings, and floors at cable penetrations. Install sleeves and seal with firestop materials according to Division 7 Section "Through-Penetration Firestop Systems." L. Roof-Penetration Sleeves: Seal penetration of individual cables with flexible boottype flashing units applied in coordination with roofing work. CONDUCTORS & CABLES 26-0519-7 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) M. Aboveground Exterior-Wall Penetrations: Seal penetrations using sleeves and mechanical sleeve seals. Size sleeves to allow for 1-inch (25-mm) annular clear space between pipe and sleeve for installing mechanical sleeve seals. N. 3.5 3.6 Underground Exterior-Wall Penetrations: Install cast-iron "wall pipes" for sleeves. Size sleeves to allow for 1-inch (25-mm) annular clear space between cable and sleeve for installing mechanical sleeve seals. SLEEVE-SEAL INSTALLATION A. Install to seal underground exterior-wall penetrations. B. Use type and number of sealing elements recommended by manufacturer for cable material and size. Position cable in center of sleeve. Assemble mechanical sleeve seals and install in annular space between cable and sleeve. Tighten bolts against pressure plates that cause sealing elements to expand and make watertight seal. FIRESTOPPING A. Apply firestopping to electrical penetrations of fire-rated floor and wall assemblies to restore original fire-resistance rating of assembly according to Division 7 Section "Through-Penetration Firestop Systems." 3.7 FIELD QUALITY CONTROL A. Testing Agency: Engage a qualified independent testing agency to perform field quality-control testing. B. Testing: On installation of wires and cables (#3 AWG and larger) and panelboard feeders and before electrical circuitry has been energized, demonstrate product capability and compliance with requirements. C. Procedures: Perform each visual and mechanical inspection and electrical test stated in NETA ATS (1999). Certify compliance with test parameters. D. Correct malfunctioning conductors and cables at Project site, where possible, and retest to demonstrate compliance/ otherwise, remove and replace with new units and retest. E. Perform NFPA 99 testing of all receptacles and circuits for grounding, impedance, and other parameters as required by the authorities having jurisdiction. END OF SECTION ELECTRICAL DEMOLITION 26-0520-1 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) SECTION 26-0520 ELECTRICAL DEMOLITION PART 1 – GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of Contract, including General and Supplementary Conditions and Division 1 Specification sections, apply to work specified in this section. 1.2 DESCRIPTION OF WORK A. The extent of general building demolition work is shown on drawings. Coordinate the required electrical work with the general demolition. B. Demolition includes complete wrecking of structures and removal and disposal of demolished materials as shown on drawings and herein specified. C. Interior demolition includes complete wrecking of interior partitions, work above ceilings, finishes, and structures and removal and disposal of demolished materials, as shown on drawings and herein specified. Any items not retained by the Owner shall be promptly disposed of off site by the Contractor. 1.3 JOB CONDITIONS A. Conditions of Structures: The Owner assumes no responsibility for actual condition of structures to be demolished. 1. Conditions of the structure existing at the time of inspections for bidding purposes will be maintained by owner in so far as practicable. However, variations within structure may occur by Owner’s removal and salvage operations prior to start of demolition work. The drawings are schematic and provided as an aid in bidding. The contractor shall visit the site and determine the actual conditions prior to bidding. B. Partial Removal: Items of salvable value to Contractor may be removed from structure as work progresses. Salvaged items must be transported from site as they are removed. 1. Storage or sale of removed items on site will not be permitted. C. Traffic: Conduct demolition operations and removal of debris to ensure minimum interference with roads, streets, walks, occupied areas, and other adjacent occupied or used facilities. D. Protections: Ensure safe passage of persons around or through area of demolition. Conduct operations to prevent injury to adjacent buildings, structures, other facilities, and persons. 1. Install temporary electrical services, lighting, etc., as required by existing conditions, the Owner or authorities having jurisdiction. ELECTRICAL DEMOLITION 26-0520-2 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) E. Damages: Promptly repair damages caused to the facility or the adjacent facilities by demolition operations at no cost to Owner. F. Utility Services: Maintain existing utilities indicated to remain, keep in service, and protect against damage during demolition operations. Allow no interruption in service unless coordinated with Owner at least 24 hours in advance. 1. Do not interrupt utilities serving occupied or used facilities, except when authorized in writing by authorities having jurisdiction. Provide temporary services during interruptions to existing utilities, as acceptable to governing authorities. 2. Contractor will disconnect and seal utilities serving each structure to be demolished, or interior area to be demolished, prior to start of demolition work. G. If Contractor is required to disconnect utility services or other services to an occupied area, the Contractor shall provide temporary or alternative service to that area. Get owner’s approval before de-energizing any circuit. Schedule shut-down at least a week in advance. PART 2 – PRODUCTS (NOT APPLICABLE) PART 3- EXECUTION 3.1 DEMOLITION A. Remove all branch and feeder conduit and wire back to panelboards. 1. Where walls, ceilings, or floors are to remain remove all devices and wire where indicated. Provide blank cover plate at outlet box and abandon empty conduit. B. All items shown to remain active shall be furnished with necessary accessible junction boxes and all conduit and wire as required to maintain circuit continuity. C. All outlet boxes which must be removed due to demolition but which must remain active in order to maintain circuit continuity shall be relocated into ceilings or walls and shall be accessible. D. All material fixtures and equipment to be reused shall be removed and stored on site. Before reinstallation all items are to be cleaned, tested and prepared for re-use. Fixtures shall be re-lamped and new ballasts installed. 3.2 DISPOSAL OF DEMOLISHED MATERIALS A. General: Remove from site debris, rubbish, and other materials resulting from demolition operations. Pay all fees related to removal and dumping. 1. Remove and dispose of interior demolition debris only. 2. Burning of removed materials from demolished structures will not be permitted on site. B. Removal: ELECTRICAL DEMOLITION 26-0520-3 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) 1. Transport materials removed from demolished structures and dispose of off site. END OF SECTION CONTROL WIRING & CONNECTIONS FOR EQUIPMENT 26-0523-1 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) SECTION 26-0523 CONTROL WIRING AND CONNECTIONS FOR EQUIPMENT AND SYSTEMS PART 1 – GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification sections, apply to work of this section. B. This section is a Division 26 Common Work Results section, and is part of each Division 26 section making reference to electrical connections specified herein. C. Any discrepancies between this section and other sections at Division 26 shall be reported to the architect immediately. The architect reserves the right to select the most restrictive solution. 1.2 DESCRIPTION OF WORK A. Extent of electrical connections for equipment is indicated by drawings, schedules, and specifications. Electrical connections are hereby defined to include, but are not necessarily limited to, connections for providing electrical power to equipment. B. Electrical power connections and control wiring specified in this section for equipment and systems provided under other divisions of these specifications include the following: 1. Power connections for systems and equipment provided under Division 21/22/23 and 26, including, but not limited to: a) b) c) d) Medical air, vacuum and gas alarms, HVAC control panels and devices, HVAC dampers, and HVAC room pressure monitors. 2. Power connections for owner furnished, contractor installed equipment. 3. Power connections to master units and power supplies of communications, data, and security equipment furnished by the owner or under other divisions of the specifications. 4. Control wiring not included in Division 21/22/23. Where control wiring is not specified under Division 21/22/23, provide control wiring in accordance with electrical and mechanical drawings and shop drawings furnished under Division 21/22/23. 5. Power and control connections for door controls and door security systems shown on the electrical or architectural drawings. See 260533 for related door control conduit and box requirements. See Div. 28, Fire Alarm for related requirements. C. Junction boxes and disconnect switches required for motors and other electrical units of equipment are specified in applicable Division 26 sections. D. Refer to sections of other Divisions for specific individual equipment power requirements. 1.3 QUALITY ASSURANCE CONTROL WIRING & CONNECTIONS FOR EQUIPMENT 26-0523-2 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) A. NEMA Compliance: Comply with applicable portions of NEMA standards pertaining to electrical connections for equipment. B. ANSI Compliance: Comply with applicable ANSI standards, pertaining to products and installations of electrical connections. PART 2 – PRODUCTS 2.1 ACCEPTABLE MANUFACTURERS A. Manufacturer: Subject to compliance with requirements, provide products of one of the following (for each type of product): 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 2.2 Adalet-PLM Div., Scott and Fetzer Co. ALCOA Conductor Products Co. AMP Products Corp. Appleton Electric Co. Arrow-hart Div., Crouse-Hinds Co. Atlas Technologies, Inc. Bishop Div., General Signal Corp Burndy Corp. Cable Connection Corp. Ideal Industries, Inc. Pyle National Co. Reliable Electric Co. T and B/Thomas and Betts Corp. MATERIALS AND COMPONENTS: A. General: For each electrical connection indicated, provide complete assembly of materials, including but not limited to pressure connectors, terminals (lugs), electrical insulating tape, heat-shrinkable insulating tubing, cable ties, solderless wire nuts, and other items and accessories as needed to complete splices and termination of types indicated. B. Wire, Cable and Connectors: 1. General: Provide wires, cables and connectors complying with Division 26 Basic Materials and Methods section “Wires and Cables.” 2. Wire: Unless otherwise indicated, provide wires/conductors for electrical connections which match wires/conductors of wire supplying power. Circuit terminations for motors shall be made with wire nuts and wing nuts. C. Electrical Connection Accessories: 1. Provide electrical insulating tape, heat-shrinkable insulating tubing and boots, wire nuts and cable ties as recommended for use by accessories manufacturers for type services indicated. PART 3 –EXECUTION 3.1 INSTALLATION OF ELECTRICAL CONNECTION CONTROL WIRING & CONNECTIONS FOR EQUIPMENT 26-0523-3 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) A. Install electrical connections as indicated; in accordance with connector manufacturer’s written instructions and with recognized industry practices, and complying with requirements of NEC and NECA’s “Standard of Installation” to ensure that products fulfill requirements. B. Connect electrical power supply conductors to equipment conductors in accordance with equipment manufacturer’s written instructions and wiring diagrams. Mate and match conductor s of electrical connections for proper interface between electrical power supplies and installed equipment. C. Coordinate installation of electrical connections for equipment with equipment installation work. D. Cover splices with electrical insulation equivalent to, or of higher rating, than insulation on conductors being spliced. E. Prepare cables and wires, by cutting and stripping covering armor, jacket, and insulation properly to ensure uniform and neat appearance where cables and wires are terminated. F. Trim cables and wires, as short as practicable and arrange routing to facilitate inspection, testing and maintenance. G. Tighten wire-binding connector screws firmly. H. Terminals for Designed Use: Each cable, conductor or wire shall terminate in a lug designed for that particular use: (e.g., one conductor per lug unless lug is designed to have additional conductors installed). I. Check and re-tighten all splices, joints, terminations and connections originally installed by the manufacturer, where bolted, threaded or other mechanical means were used to secure joints and splices. 1. This shall include, but not be limited to: main services entrance equipment, distribution panels, branch circuit panels, motor control centers, transfer switches, etc. J. Provide flexible conduit for motor connections, and for other electrical equipment connections where subjected to movement and vibration. K. Provide liquid-tight flexible conduit for connection of motors and for other electrical equipment where subject to movement and vibration, and also where subjected to one or more of the following conditions: 1. 2. 3. 4. 5. Exterior location Moist or humid atmosphere where condensation can be expected to accumulate Corrosive atmosphere Subjected to water spray Subjected to dripping oil, grease, or water END OF SECTION GROUNDING & BONDING 26-0526-1 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) SECTION 26-0526 GROUNDING AND BONDING PART – GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specifications Sections, apply to this Section. 1.2 SUMMARY A. This Section includes grounding of electrical system and equipments and basic requirements for grounding for protection of life, equipment and basic requirements for protection of life, equipment, circuits, and systems. Grounding requirements specified in this Section may be supplement in other Sections of these Specifications. 1.3 SUBMITTALS A. General: Submit each item this Article according to the Conditions of the Contract and Division 1 Specification Selection. B. Product Data for each type of product indicated. C. Plans showing dimensioned as-built locations of grounding features specified including the following: 1. 2. Ground rods. Grounding arrangements and connections for separately derived systems. D. Qualification data for firms and persons specified in “Quality Assurance” Article to demonstrate their capabilities and experience. Include lists of completed project names and addresses, name and addresses of architects and owners, and other information specified. E. Field tests and observation reports certified by the testing organization and indicating and interpreting the test reports for compliance with performance requirements. 1.4 QUALITY ASSURANCE A. Testing Agency Qualification: A “Nationally Recognized Testing Laboratory” (NRTL) as defined in OSHA Regulation 1910.7, or a full member company of the Inter National Electrical Testing Association (NETA). 1. Testing Agency Qualifications: A “Nationally Recognized Testing Laboratory” (NRTL) as defined in OSHA Regulation 1910.7, or a full member company of the InterNational Electrical Testing Association (NETA). B. Comply with NFPA 70. C. Comply with UL 467. GROUNDING & BONDING 26-0526-2 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) D. Listing and Labeling: Provide products specified in this Section that are listed and labeled. 1. 2. The Terms “listed” and “Labeled”: As defined in the National Electrical Code, Article 100. Listing and Labeling Agency Qualifications: A “Nationally Recognized Testing Laboratory” (NRTL) as defined in OSHA Regulation 1910.7. PART 2 – PRODUCTS 2.1 MANUFACTURERS A. Manufacturer: Subject to compliance with requirements, provide products by one of the following (for each type of product): 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 2.2 Apache Grounding; Nashville Wire Products Boggs: H.L. Boggs & Co. Chance: A.B. Chance Co. Dossert Corp. Erico Inc.; Electrical Products Group. Galvan Industries, Inc. Hastings Fiber Glass Products, Inc. Heary Brothers Lightning Protection Co. Ideal Industries, Inc. ILSCO Kearney Korns: C.C. Korns Co. Lightning Master Corp. Lyncole XIT Grounding O-Z/Gedney Co. Raco, Inc. Salisbury: W.H. Salisbury & Co., Utility Thomas & Betts, Electrical Utilco Co. GROUNDING AND BONDING PRODUCTS A. Governing Requirements: Where types, sizes, ratings, and quantities indicated are in excess of National Electrical Code (NEC) requirements, the more stringent requirements and the greater size, rating, and quantity indications govern. 2.3 WIRE AND CABLE GROUNDING CONDUCTORS A. Comply with Division 26 Section “Conductors and Cables.” Conform to NEC Table 8 except as otherwise indicated, for conductor properties, including stranding. 1. Material: Copper. Use aluminum only where contact with dissimilar metals can corrode copper. Use only copper wire for both insulated and bare grounding conductors in direct contact with earth, concrete, masonry, crushed stone and similar materials. GROUNDING & BONDING 26-0526-3 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) B. Equipment Grounding Conductors: Insulated with green color insulation. C. Underground Conductors: Bare, tinned, stranded, except as otherwise indicated. D. Bare Copper Conductors: Conform to the following: 1. 2. 3. 2.4 Solid Conductors: ASTM B 3. Assembly of Stranded Conductors: ASTM B 8. Tinned Conductors: ASTM B 33. MISCELLANEOUS CONDUCTORS A. Grounding Bus: Bare, annealed-copper bars of rectangular cross section; with insulators. B. Braided Bonding Jumpers: Copper tape, braided No. 30 AWG bare copper wire, terminated with copper ferrules. C. Bonding Straps: Soft copper, 0.05 inch (1 mm) thick and 2 inches (50 mm) wide, except as indicated. 2.5 CONNECTOR PRODUCTS A. Listed and labeled by a nationally recognized testing laboratory acceptable to authorities having jurisdiction for applications in which used, and for specific types, sizes, and combinations of conductors and other items connected. B. Bolted Connectors for Conductors and Pipes: Copper or copper alloy, bolted pressuretype, with at least two bolts. 1. Pipe Connectors: Clamp type, sized for pipe. C. Welded Connectors: Exothermic-welding kits of types recommended by kit manufacturer for materials being joined and installation conditions. 2.6 GROUNDING ELECTRODES AND TEST WELLS A. Grounding Rods: Copper-clad steel. 1. Size: ¾ inch by 120 inches (19 by 3000 mm). PART 3 – EXECUTION 3.1 APPLICATION A. Equipment Grounding Conductors: Comply with NEC Article 250 for types, sizes, and quantities of equipment grounding conductors, except where specific types, larger sizes, or more conductors than required by NEC are indicated. GROUNDING & BONDING 26-0526-4 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) 1. Install equipment grounding conductor with circuit conductors for the items below in addition to those required by Code: a. b. c. d. e. f. g. Feeders Receptacle Circuits Single-phase motor or appliance branch circuits Three-phase motor or appliance branch circuits Flexible raceway runs. Connect to conduit system at with lugs at both ends. Armored and metal-clad cable runs Patient care area branch circuits B. Separately Derived Systems: Where NEC requires grounding, ground according to NEC Paragraph 250-30. C. Where a “normal system” panelboard and emergency system panelboard feed the same patient care area, bond the ground buses together using a #10 insulated copper conductor (installed in conduit) in accordance with NFPA 70, Article 517. D. Refer to 26 2726, Wiring Devices, and 26 0500, Common Work Results, for wiring device grounding requirements. F. Grounding Bus: Install in electrical and telephone equipment rooms, in rooms housing service equipment, and elsewhere as indicated. 1. 2. 3. Install bus on insulated spacers 1 inch (25 mm), minimum, from wall 6 inches (150 mm) above finished floor, unless otherwise indicated. Where indicated on both sides of doorways, route bus up to top of door frame, across top of doorway, down to specified height above floor, and connect to horizontal bus. Provide dedicated #1/0 insulated ground conductor in conduit to each grounding bus from main service ground bus. G. Signal and Communication Equipment: For telephone, alarm, voice and data, and other communication equipment, provide No. 4 AWG minimum insulated grounding conductor in raceway from grounding electrode system to each service location, terminal cabinet, wiring closet, and central equipment location. 1. 2. 3.2 Service and Central Equipment Locations and Wiring Closets: Terminate grounding conductor on a 1/4-by-2-by-12-inch (6-by-50-by-300-mm) grounding bus. Terminal Cabinets: Terminate grounding conductor on cabinet grounding terminal. INSTALLATION A. General: Ground electrical systems and equipment according to NEC requirements, except where Drawings or Specifications exceed NEC requirements. B. Grounding Rods: GROUNDING & BONDING 26-0526-5 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) 1. Locate a minimum of 1-rod length from each other and at least the same distance from any other grounding electrode. 2. Drive until tops are 2 inches (50 mm) below finished floor or final grade, except as otherwise indicated. Interconnect with grounding-electrode conductors. Use exothermic welds, except at test wells and as otherwise indicated. Make these connections without damaging copper coating or exposing steel. C. Grounding Conductors: Route along the shortest and straightest paths possible, except as otherwise indicated. Avoid obstructing access or placing conductors where they may be subjected to strain, impact, or damage. D. Grounding for Steel Building Structure: Install a driven ground rod at base of each corner column and at intermediate exterior columns at distances not more than 60 feet (18 m) apart. E. Common Ground Bonding with Lightning Protection System: Comply with NFPA 780 and UL 96 when interconnecting with lightning protection system. Bond electrical power system ground directly to lightning protection system grounding conductor at closest point to electrical service grounding electrode. Use bonding conductor sized same as system grounding electrode conductor, and install in conduit. F. Bonding Straps and Jumpers: Install in locations accessible for inspection and maintenance, except where routed through short lengths of conduit. 1. 2. 3. 3.3 Bonding to Structure: Bond straps directly to basic structure, taking care not to penetrate any adjacent parts. Bonding to Equipment Mounted on Vibration Isolation Hangers and Supports: Install so vibration is not transmitted to rigidly mounted equipment. Use exothermic-welded connectors for outdoor locations, but if a disconnect-type connection is required, use a bolted clamp. CONNECTIONS A. General: Make connections so possibility of galvanic action or electrolysis is minimized. Select connectors, connection hardware, conductors, and connection methods so metals in direct contact will be galvanically compatible. 1. 2. 3. 4. 5. Use electroplated or hot-tin-coated materials to assure high conductivity and to make contact points closer in order of galvanic series. Make connections with clean, bare metal at points of contact. Make aluminum-to-steel connections with stainless-steel separators and mechanical clamps. Make aluminum-to-galvanized steel connections with tin-plated copper jumpers and mechanical clamps. Coat and seal connections having dissimilar metals with inert material to prevent future penetration of moisture to contact surfaces. B. Exothermic-Welded Connections: Use for connections to structural steel and for underground connections, except where test wells are provided. Comply with GROUNDING & BONDING 26-0526-6 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) manufacturer’s written instructions. Welds that are puffed up or that show convex surfaces indicating improper cleaning are not acceptable. C. Equipment Grounding-Wire Terminations: For No. 2 AWG and larger, use pressure-type grounding lugs. No. 10 AWG and smaller grounding conductors may be terminated with winged pressure-type connectors. D. Non-contact Metal Raceway Terminations: Where metallic raceways terminate at metal housings without mechanical and electrical connection to housing, terminate each conduit with a grounding bushing. Connect grounding bushings with a bare grounding conductor to grounding bus or terminal in housing. Bond electronically non-continuous conduits at both entrances and exits with grounding bushings and bare grounding conductors, except as otherwise indicated. E. Tighten screws and bolts from grounding and bonding connectors and terminals according to manufacturer’s published torque-tightening values. Where these requirements are not available, use those specified in UL 486A and UL 486B. F. Moisture Protection: Where insulated grounding conductors are connected to grounding rods or grounding buses, insulate entire area of connection and seal against moisture penetration of insulation and cable. 3.4 FIELD QUALITY CONTROL A. Independent Testing Agency: Engage an independent electrical testing organization to perform tests described below. B. Tests: Subject the completed grounding system to megger test at each location where a maximum ground-resistance level is specified, at service disconnect enclosure grounding terminal, and at ground test wells. Measure ground resistance not less than 2 full days after the last trace of precipitation, and without the soil being moistened by any means other than natural drainage or seepage and without chemical treatment or other artificial means of reducing natural ground resistance. Perform tests per IEEE 81 Guide for Measuring Resistivity / Fall of Potential. C. Excessive Ground Resistance: Where resistance to ground exceeds specified values, notify Owner promptly and include recommendations to reduce ground resistance and to accomplish recommended work. D. Report: Prepare test reports, certified by the testing organization, or ground resistance at each test location. Include observations of weather and other phenomena that may affect test results. Describe measures taken to improve test results. F. Perform NFPA 99 testing of all receptacles and circuits for grounding, impedance, and other parameters as required by the authorities having jurisdiction. 3.5 ADJUSTING AND CLEANING A. Restore surface features, including vegetation, at areas disturbed by work of this Section. Reestablish original grades, except as otherwise indicated. Where sod has been removed, replace it as soon as possible after backfilling is completed. Restore GROUNDING & BONDING 26-0526-7 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) areas disturbed by trenching, storing of dirt, cable laying, and other activities to their original condition. Include topsoiling, fertilizing, liming, seeding, sodding, sprigging, and mulching. Comply with Section “Landscaping.” Maintain restored surfaces. Restore disturbed paving as indicated. END OF SECTION RACEWAYS & BOXES 26-0533-1 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) SECTION 26-0533 RACEWAYS AND BOXES PART 1 – GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. 1.2 SUMMARY A. This Section includes raceways, fittings, boxes, enclosures, and cabinets for electrical wiring. All wiring and cable shall be installed in conduit or raceway except multiconductor signal, control, and/or communication circuits not used for fire alarm, provided the cable operates at less than 24 volts, has a plenum-rated outer jacket, is protected by enclosure in walls and ceilings, is approved by the authorities having jurisdiction over the work, is installed in accordance with applicable codes, and is not specifically required to be in conduit by drawings or specifications. Provide conduit and boxes at doors as shown on the electrical and architectural drawings for door security (i.e. key-pads, position indicators, door switches, etc.) and for visual security system (i.e. cameras). 1. Raceways include the following: a) b) c) d) e) f) RMC: Rigid Metallic Conduit IMC: Intermediate Metallic Conduit EMT: Electrical Metallic Tubing FMC: Flexible Metallic Conduit LFMC: Liquidtight Flexible Metallic Conduit Wireways 2. Boxes, enclosures, and cabinets include the following: a) b) c) d) e) Device boxes Floor boxes Outlet boxes Pull and junction boxes Cabinets and hinged-cover enclosures 3. Related Sections include the following: a) b) c) d) e) 1.3 Section “Firestopping” Section “Common Work Results” Section “Wiring Devices” Section “Fire Alarm Systems” Section “Telecommunications System Conduit and Boxes” SUBMITTALS A. Product Data: For surface raceways, wireways and fittings, floor boxes, hinged-cover enclosures, and cabinets. RACEWAYS & BOXES 26-0533-2 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) B. Shop Drawings: Include layout drawings showing components and wiring for nonstandard boxes, enclosures, cabinets and underground manholes, pull boxes or handholes. C. Manufacturer Seismic Qualification Certification: Where applicable, submit certification that enclosures and cabinets and their mounting provisions, including those for internal components, will withstand seismic forces defined in Division 26 Section "Electrical Supports and Seismic Restraints." Include the following: 1. Basis for Certification: Indicate whether withstand certification is based on actual test of assembled components or on calculation. a) The term "withstand" means "the cabinet or enclosure will remain in place without separation of any parts when subjected to the seismic forces specified and the unit will retain its enclosure characteristics, including its interior accessibility, after the seismic event." 2. Dimensioned Outline Drawings of Equipment Unit: Identify center of gravity and locate and describe mounting and anchorage provisions. 3. Detailed description of equipment anchorage devices on which the certification is based and their installation requirements. 1.4 QUALITY ASSURANCE A. Listing and Labeling: Provide raceways and boxes specified in this Section that are listed and labeled. 1. The Terms “Listed” and “Labeled”: As defined in NFPA 70, Article 100. 2. Listing and Labeling Agency Qualifications: A “Nationally Recognized Testing Laboratory” as defined in OSHA Regulation 1910.7. B. Comply with NECA’s “Standard of Installation”. C. Comply with NFPA 70. 1.5 COORDINATION A. Coordinate layout and installation of raceways and boxes with other construction elements to ensure adequate headroom, working clearance, and access. PART 2 – PRODUCTS 2.1 MANUFACTURERS A. Manufacturer: Subject to compliance with requirements, provide products of one of the following (for each type of product): 1. Metal Conduit and Tubing: a) Alflex Corp. RACEWAYS & BOXES 26-0533-3 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) b) c) d) e) f) g) h) i) j) k) l) Anamet, Inc.; Anaconda Metal Hose Anixter Brothers, Inc. Carol Cable Co., Inc. Cole-Flex Corp. Electri-flex Co. Flexcon, Inc.; Coleman Cable Systems, Inc. Grinnell Co.; Allied Tube and Conduit Div. Monogram Co.; AFC Spiraduct, Inc. Triangle PWC, Inc. Wheatland Tube Co. 2. Conduit Bodies and Fittings: a) b) c) d) e) f) g) America Electric; Construction Materials Group Crouse-Hinds; Div. of Cooper Industries Emerson Electric Co.; Appleton Electric Co. Lamson & Sessions; Carlon Electrical Products O-Z/Gedney; Unit of General Signal Scott Fetzer Co.; Adalet-PLM. Spring City Electrical Manufacturing Co. 3. Metal Wireways: a) Hoffman Engineering Co. b) Keystone/Rees, Inc. c) Square D Co. 4. Boxes, Enclosures, and Cabinets: a) b) c) d) e) f) g) h) i) j) k) l) m) n) o) p) 2.2 American Electric; Fl Industries. Butler Manufacturing Co.; Walker Division Crouse-Hinds; Div. of Cooper Industries Electric Panelboard Co., Inc. Erickson Electric Equipment Co. Hoffman Engineering Co.; Federal Hoffman, Inc. Hubbell Inc.; Killark Electric Manufacturing Co. Hubbell Inc.; Raco, Inc. Lamson & Sessions; Carlon Electrical Products O-Z/Gedney; Unit of General Signal Parker Electrical Manufacturing Co. Robory Industries, Inc.; Electrical Division Scott FetzerCo.; Adalet-PLM. Spring City Electrical Manufacturing Co. Thomas & Betts Corp. Woodhead Industries, Inc.; Daniel Woodhead Co. METAL CONDUIT AND TUBING A. Rigid Steel Conduit: ANSI C80.1 RACEWAYS & BOXES 26-0533-4 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) B. Rigid Aluminum Conduit: ANSI C80.5 C. IMC: ANSI C 80.6 D. EMT and Fittings: ANSI C80.3 1. Fittings: Set-screw or compression type E. FMC: Zinc-coated steel F. LFMC: Flexible steel conduit with conduit/tubing materials 2.3 METAL WIREWAYS A. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: B. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. Cooper B-Line, Inc. 2. Hoffman. 3. Square D; Schneider Electric. C. Description: Sheet metal sized and shaped as indicated, NEMA 250, Type 1 unless otherwise indicated. D. Fittings and Accessories: Include couplings, offsets, elbows, expansion joints, adapters, hold-down straps, end caps, and other fittings to match and mate with wireways as required for complete system. E. Wireway Covers: Screw-cover type F. Finish: Manufacturer's standard enamel finish. 2.4 SURFACE RACEWAYS A. Surface Metal Raceways: Galvanized steel with snap-on covers. standard enamel finish in color selected by Architect Manufacturer's 1. Manufacturers: Subject to compliance with requirements, provide products by one of the following: a. Thomas & Betts Corporation. b. Walker Systems, Inc.; Wiremold Company (The). c. Wiremold Company (The); Electrical Sales Division. 2.5 OUTLET AND DEVICE BOXES RACEWAYS & BOXES 26-0533-5 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) A. Sheet Metal Boxes: NEMA OS 1. B. Cast-Metal Boxes: FB 1, Type FD, cast box with gasketed cover. 2.6 FLOOR BOXES A. Floor Boxes: Cast metal, fully adjustable, rectangular. 2.7 PULL AND JUNCTION BOXES A. Small Sheet Metal Boxes: NEMA OS 1. B. Cast-Metal Boxes: NEMA FB 1, cast aluminum with gasketed cover. 2.8 ENCLOSERS AND CABINETS A. Hinged-Cover Enclosures: NMA 250, Type 1, with continuous hinge cover and flush latch. 1. Metal Enclosures: NEMA 250, Type 1. with continuous hinge cover and flush latch. 2. Metal Enclosures: Steel, Finished inside and out with manufacture’s standard enamel. 3. Nonmetallic Enclosure: Plastic, finished inside with radio-frequency-resistant paint. B. Cabinets: NEMA 250, Type 1, galvanized steel box with removable interior panel and removable front, finished inside and out with manufacture’s standard enamel. Hinged door in front cover with flush latch and concealed hinge. Key latch to match panelboards. Including metal barriers to separate wiring of different systems and voltage, and including accessory feet where requires for freestanding equipment. 2.9 HANDHOLES AND BOXES FOR EXTERIOR UNDERGROUND WIRING A. Description: Comply with SCTE 77. 1. Color of Frame and Cover: Gray 2. Configuration: Units shall be designed for flush burial and have closed bottom, unless otherwise indicated. 3. Cover: Weatherproof, secured by tamper-resistant locking devices and having structural load rating consistent with enclosure. 4. Cover Finish: Nonskid finish shall have a minimum coefficient of friction of 0.50. 5. Cover Legend: Molded lettering, to indicate service. 6. Conduit Entrance Provisions: Conduit-terminating fittings shall mate with entering ducts for secure, fixed installation in enclosure wall. 7. Handholes 12 inches wide by 24 inches long (300 mm wide by 600 mm long) and larger shall have inserts for cable racks and pulling-in irons installed before concrete is poured. B. Polymer-Concrete Handholes and Boxes with Polymer-Concrete Cover: Molded of sand and aggregate, bound together with polymer resin, and reinforced with steel or fiberglass or a combination of the two. RACEWAYS & BOXES 26-0533-6 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) 1. Basis-of-Design Product: Subject to compliance with requirements, provide a product by one of the following: a. b. c. d. 2.10 Armorcast Products Company. Carson Industries LLC. CDR Systems Corporation. NewBasis. SLEEVES FOR RACEWAYS A. Steel Pipe Sleeves: steel, plain ends. ASTM A 53/A 53M, Type E, Grade B, Schedule 40, galvanized B. Cast-Iron Pipe Sleeves: Cast or fabricated "wall pipe," equivalent to ductile-iron pressure pipe, with plain ends and integral waterstop, unless otherwise indicated. C. Sleeves for Rectangular Openings: Galvanized sheet steel with minimum 0.052- or 0.138-inch (1.3- or 3.5-mm) thickness as indicated and of length to suit application. D. Coordinate sleeve selection and application with selection and application of firestopping specified in Division Section "Through-Penetration Firestop Systems." 2.11 SLEEVE SEALS A. Basis-of-Design Product: Subject to compliance with requirements, provide a product by one of the following: 1. 2. 3. 4. Advance Products & Systems, Inc. Calpico, Inc. Metraflex Co. Pipeline Seal and Insulator, Inc. B. Description: Modular sealing device, designed for field assembly, to fill annular space between sleeve and cable. 1. Sealing Elements: EPDM or NBR interlocking links shaped to fit surface of cable or conduit. Include type and number required for material and size of raceway or cable. 2. Pressure Plates: Plastic, Carbon steel or Stainless steel. Include two for each sealing element. 3. Connecting Bolts and Nuts: Carbon steel with corrosion-resistant coating or stainless steel of length required to secure pressure plates to sealing elements. Include one for each sealing element. 2.12 SOURCE QUALITY CONTROL FOR UNDERGROUND ENCLOSURES A. Handhole and Pull-Box Prototype Test: Test prototypes of handholes and boxes for compliance with SCTE 77. Strength tests shall be for specified tier ratings of products supplied. 1. Tests of materials shall be performed by a independent testing agency. RACEWAYS & BOXES 26-0533-7 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) 2. Strength tests of complete boxes and covers shall be by either an independent testing agency or manufacturer. A qualified registered professional engineer shall certify tests by manufacturer. 3. Testing machine pressure gages shall have current calibration certification complying with ISO 9000 and ISO 10012, and traceable to NIST standards. PART 3 – EXECUTION 3.1 EXAMINATION A. Examine surfaces to receive raceways, boxes, enclosures, and cabinets for compliance with installation tolerances, accessibility and other conditions affecting performance of raceway installation. Do not proceed with installation until unsatisfactory conditions have been corrected. 3.2 WIRING METHODS A. Outdoors: Use the following wiring methods unless specifically indicated otherwise on the drawings: 1. 2. 3. 4. Exposed: RMC or IMC Concealed: RMC or IMC Underground, Single Run: RMC Connection to Vibrating Equipment (Including Transformers and Hydraulic, Pneumatic, Electric Solenoid, or Motor-Driven Equipment): LFMC 5. Boxes and Enclosures: NEMA 250, Type 3R or Type 4 6. Cooling towers: Rigid steel with minimum 40 mil PVC coating B. Indoors: Use the following wiring methods unless specifically indicated otherwise on the drawings: 1. Exposed: EMT or IMC Concealed: Above ceilings or in walls, EMT. FMC, MC cable, and AC cable shall not be permitted for branch circuits, except for fixture whips and connection to vibrating equipment. 2. In concrete: RMC or IMC Beneath slab: RMC 3. Connection to Vibrating Equipment (Including Transformers and Hydraulic, Pneumatic, Electric Solenoid, or Motor-Driven Equipment): FMC; except in wet or damp locations, use LFMC 4. Damp or Wet Locations or locations exposed to mechanical damage: Rigid steel conduit 3.3 INSTALLATION A. Install raceways, boxes, enclosures, and cabinets as indicated, according to manufacturers written instructions. B. Minimum Raceway Size: 1/2-inch trade size (DN16). 3/4-inch trade size for homeruns. RACEWAYS & BOXES 26-0533-8 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) C. Conceal conduit and EMT, unless otherwise indicated, within finished walls, ceilings, and floors. D. Keep raceways at least 6 inches (150 mm) away from parallel runs of flues and steam or hot-water pipes. Install horizontal raceway runs above water and steam piping. E. Install raceways level and square and at proper elevations. Provide adequate headroom. F. Complete raceway installation before starting conductor installation. G. Support raceways as specified in Division 26 Section “Basic Electrical Materials and Methods.” H. Use temporary closures to prevent foreign matter from entering raceways. I. Protect stub-ups from damage where conduits rise through floor slabs. Arrange so curved portion of bends is not visible above the finished slab. J. Make bends and offsets so ID is not reduced. Keep legs of bends in the same plane and straight legs of offsets parallel, unless otherwise indicated. K. Use raceway fittings compatible with raceways and suitable for use and location. For intermediate steel conduit, use threaded rigid steel conduit fittings, unless otherwise indicated. L. Run concealed raceways, with a minimum of bends, in the shortest practical distance considering the type of building construction and obstructions, unless otherwise indicated. M. Raceways shall not be embedded in slabs. N. Install exposed raceways parallel to or at right angles to nearby surfaces or structural members, and follow the surface contours as much as practical. 1. Run parallel or banked raceways together, on common supports where practical. 2. Make bends in parallel or banked runs from the same centerline to make bends parallel. Use factory elbows only where elbows can be installed parallel; otherwise, provide field bends for parallel raceways. O. Join raceways with fittings designed and approved for the purpose and make joints tight. 1. Make raceway terminations tight. Use bonding bushings or wedges at connections subject to vibration. Use bonding jumpers where joints cannot be made tight. 2. Use insulating bushings to protect conductors. P. Tighten set screws of threadless fittings with suitable tools. Q. Terminations: Where raceways are terminated with locknuts and bushings, align raceways to enter squarely and install locknuts with dished part against the box. Where terminations are not secure with 1 locknut, use 2 locknuts: 1 inside and 1 outside the box. RACEWAYS & BOXES 26-0533-9 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) R. Where raceways are terminated with threaded hubs, screw raceways or fittings tightly into the hub so the end bears against the wire protection shoulder. Where chase nipples are used, align raceways so the coupling is square to the box and tighten the chase nipple so no threads are exposed. S. Install pull wires in empty raceways. Use No. 14 AWG zinc-coated steel or monofilament plastic line with not less than 200-lb (90-kg) tensile strength. Leave at least 12 inches (300 mm) of slack at each end of the pull wire. T. Telephone and Signal System Raceways, 2-Inch Trade Size (DN53) and Smaller: In addition to the above requirements, install raceways in maximum lengths of 150 feet (45 m) and with a maximum of two 90-degree bends or equivalent. Separate lengths with pull or junction boxes where necessary to comply with these requirements. U. Install raceway sealing fittings according to manufacturer’s written instructions. Locate fittings at suitable, approved, and accessible locations and fill them with UL-listed sealing compound. For concealed raceways, install each fitting in a flush steel box with a blank cover plate having a finish similar to that of adjacent plates or surfaces. Install raceway sealing fittings at the following points: 1. Where conduits pass from warm to cold locations, such as the boundaries of refrigerated spaces. 2. Where otherwise required by NFPA 70. V. Stub-up Connections: Extend conduits through concrete floor for connection to freestanding equipment. Install with an adjustable top or coupling threaded inside for plugs set flush with the finished floor. Extend conductors to equipment with rigid steel conduit; FMC may be used 6 inches (150 mm) above the floor. Install screwdriveroperated, threaded flush plugs flush with floor for future equipment connections. W. Flexible Connections: Use maximum of 6 feet (1830 mm) of flexible conduit for recessed and semi-recessed lighting fixtures; for equipment subject to vibration, noise transmission, or movement; and for all motors. Use liquidtight flexible conduit in wet or damp locations. Install separate ground conductor across flexible connection. Where MC cable or AC cable is permitted, use hospital grade cable with the jacket listed as an approved return path. X. Set floor boxes level and adjust to finished floor surface. Y. Set floor boxes level and trim after installation to fit flush to finished floor surface. Z. Install hinged-cover enclosures and cabinets plumb. Support at each corner. AA. Conduit not serving elevator equipment shall not be permitted to pass through elevator shafts or elevator equipment rooms. BB. Conduit not serving exit stairs or exit passageways shall not be permitted to pass through those stairs or passageways. RACEWAYS & BOXES 26-0533-10 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) CC. All conduit shall be installed above other trades (ductwork, piping, etc.) and supported to the structure. In corridors, the conduit shall be installed to one or each side (either high on the wall or at structure) for accessibility. DD. Tie wires shall not be permitted for conduit support. All boxes shall be supported independently from the building structure. EE. Locate boxes so that openings are not obstructed by pipes, ducts, etc., and boxes are accessible as required by NFPA 70. FF. Insulated throat bushings shall be installed for all EMT terminations. Insulated bushings shall be required for all IMC and rigid steel terminations. GG. Install code sized green equipment grounding conductor in metallic conduit for all patient care area branch circuits as required by NFPA 70, Article 517 and as otherwise required for general receptacle, power, and lighting circuits. HH. For interior exposed locations such as mechanical rooms, storage rooms, and similar rooms, all parts of circuits below 10’0” that are not against a wall shall have rigid steel conduit. 3.4 II. No boxes or raceway shall be installed below 60” above finished floor in rooms intended to house gas storage cylinders or dewars. JJ. Provide FireBlok fire suppression gaskets for boxes to be installed in fire rated assemblies. PROTECTION A. Provide final protection and maintain conditions, in a manner acceptable to manufacturer and installer that ensure coatings, finishes, and cabinets are without damage or deterioration at the time of substantial completion. 1. Repair damage to galvanized finishes with zinc-rich paint recommended by manufacturer. 2. Repair damage to PVC or paint finishes with matching touchup coating recommended by manufacturer. 3.5 CLEANING A. On completion of installation, including outlet fittings and devices, inspect exposed finish. Remove burrs, dirt, and construction debris and repair damaged finish, including chips, scratches, and abrasions. END OF SECTION TELECOMM SYSTEMS CONDUIT, BOXES & CABLE 26-0534-1 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) SECTION 26-0534 TELECOMMUNICATIONS SYSTEMS CONDUIT, BOXES, AND CABLE MANAGEMENT PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the contract including General and Supplementary Conditions in Division 1 Specifications Sections, apply to this section. 1.2 SUMMARY A. Provide a complete conduit and back box system for telecommunications systems including but not limited to telephone, data processing, nurse call, intercom, paging, TV, dictation, and other low voltage systems. B. Related sections including the following: 1. 2. 1.3 Section 26 0500- Common Work Results Section 26 0533- Raceways and Boxes SUBMITTALS A. Submit Raceways and Boxes in accordance with Section 26 0533. 1.4 QUALITY ASSURANCE A. Comply with NFPA 70 for components and installation. PART 2 - PRODUCTS 2.1 RACEWAY AND BOXES A. Provide in accordance with 26 0533. PART 3 - EXECUTION 3.1 EQUIPMENT INSTALLATION REQUIREMENT A. Comply as required for contractor furnished and owner furnished telecommunications systems. B. Install items level, plumb, and perpendicular to other building systems and components, except where otherwise indicated. C. Coordinate work with telecommunications equipment vendors for contractor furnished and owner furnished telecommunications equipment. 3.2 INSTALLATION TELECOMM SYSTEMS CONDUIT, BOXES & CABLE 26-0534-2 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) A. For, telephone, data processing, dictation, and other telecommunications outlets, provide a 4 11/ 16” square x 2” deep junction box with plaster ring. Multi-gang boxes shall match single gang (except for width) and shall have multi-gang plaster ring. B. For back boxes provide 3/4” (minimum) EMT conduit turned up into the nearest accessible corridor ceiling space. C. For special back boxes as required for nurse call and other systems. Install special back boxes furnished by the system vendor. D. Provide suitable pullwire in each conduit and an insulating bushing on each conduit termination. E. Provide 4 feet (w) by 8 feet (h), continuous, by 3/4 inch fire rated plywood terminal board painted flat white on all walls of all telecommunications closets and rooms throughout the project. F. Backboxes for telephone/computer outlets shall be mounted at 18 inches above finished floor unless noted otherwise. See specifications section 26 0533. G. Public telephone outlets shall be mounted at 42 inches above finish floor unless noted otherwise. END OF SECTION LOW-VOLTAGE TRANSFORMERS 26-2200-1 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) SECTION 26-2200 LOW-VOLTAGE TRANSFORMERS (600 V AND LESS) PART 1 – GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. 1.2 SUMMARY A. This Section includes dry-type distribution and specialty transformers rated 600 V and less, with capacities up to 1000KVA. 1.3 SUBMITTALS A. Product Data: Include data on features, components, ratings, and performance for each type of transformer specified. Include dimensioned plans, sections, and elevation views. Show minimum clearances and installed devices and features. Provide % impedance within plus or minus 5%. B. Wiring Diagrams: Detail wiring and identify terminals for tap changing and connecting field-installed wiring. C. Product Certificates: Signed by manufacturers of transformers certifying that the products furnished comply with requirements. D. Factory Test Reports: Certified copies of manufacturer’s design and routine factory tests required by reference standards. E. Sound-Level Test Reports: Certified copies of manufacturer’s sound-level tests applicable to equipment for this project. F. Field Test Reports: Indicate and interpret test results for tests specified in Part 3. G. Maintenance Data: For transformers to include in the maintenance manuals specified in Division 1. 1.4 QUALITY ASSURANCE A. Listing and Labeling: Provide transformers specified in this Section that are listed and labeled. 1. 2. The Terms “Listed” and “Labeled”: As defined in NFPA 70, Article 100. Listing and Labeling Agency Qualifications: A “Nationally Recognized Testing Laboratory” as defined in OSHA Regulation 1910.7. B. Comply with IEEE C57.12.91. C. Comply with NFPA 70. LOW-VOLTAGE TRANSFORMERS 26-2200-2 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) 1.5 DELIVERY, STORAGE, AND HANDLING A. Temporary Heating: Apply temporary heat according to manufacturer’s written instructions within the enclosure of each ventilated-type unit throughout periods during which equipment is not energized and is not in a space that is continuously under normal control of temperature and humidity. PART 2 - PRODUCTS 2.1 MANUFACTURERS A. Manufacturer: Subject to compliance with requirements, provide products by on of the following (for each type of product): 1. 2. 3. 4. 2.2 Cutler-Hammer/Westinghouse General Electric Siemens Square D TRANSFORMERS, GENERAL A. Description: Factory-assembled and -tested, air-cooled units of types specified, designed for 60-Hz service. B. Cores: Grain-oriented, non-aging silicon steel. C. Coils: Continuous windings without splices, except for taps. D. Internal Coil Connections: Brazed or pressure type. E. Enclosure: Class complies with NEMA 250 for the environment in which installed. F. Low-Sound-Level Units: Where indicated on drawings, minimum of 3 dBA less than NEMA ST 20 standard sound levels when factory tested according to IEEE C57.12.91. 2.3 GENERAL-PURPOSE DISTRIBUTION AND POWER TRANSFORMERS A. Comply with NEMA ST 20 and list and label as complying with UL 1561. B. Cores: One leg per phase. C. Windings: One coil per phase in primary and secondary. D. Enclosure: Indoor, ventilated. Core and coil shall be encapsulated within resin compound, sealing out moisture and air. (OPTION) E. Insulation Class: 185 or 220 deg C class for transformers 15 kVA or smaller; 220 deg C class for transformers larger than 15 kVA. Temperature rise shall be as indicated below unless otherwise indicated on the drawings: LOW-VOLTAGE TRANSFORMERS 26-2200-3 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) 1. Rated Temperature Rise: 150 deg C maximum rise above 40 deg C, for 220 deg C class insulation; 115 deg C maximum rise for 185 deg C. class insulation. F. Taps: For transformers 3 kVA and larger, full-capacity taps in high-voltage windings are as follows: 1. 2. Taps, 3 through 24 kVA: Two 5-percent taps below rated high voltage. Taps, 25kVA and Larger: Six 2.5-percent taps, 2 above and 4 below rated high voltage. G. Energy Efficiency for Transformers Rated 15KVA and Larger: 1. 2. Complying with NEMA TP-1, Class 1 efficiency levels Tested according to NEMA TP-2. H. Wall-Mounting Brackets: Manufacturer’s standard brackets for transformers up to 75 kVA. I. Transformer impedances shall be as indicated below: 2.4 BUCK-BOOST TRANSFORMERS A. Units comply with NEMA ST 1 and are listed and labeled as complying with UL 506 or UL 1561. B. Description: Self-cooled dry type, rated for continuous duty, and connected as autotransformers to provide the percentage of buck or boost indicated. 2.5 CONTROL AND SIGNAL TRANSFORMERS A. Units comply with NEMA ST 1 and are listed and labeled as complying with UL 506. B. Ratings: Continuous duty. If rating is not indicated, provide capacity exceeding peak load by 50 percent minimum. C. Description: Self-cooled, 2 windings. 2.6 FINISHES A. Indoor Units: Manufacturer’s standard paint over corrosion-resistant pretreatment and primer. B. Outdoor Units: Comply with ANSI C57.12.28. 2.7 Source Quality Control A. Factory Tests: Design and routine tests comply with referenced standards. B. Factory Sound-Level Tests: Conduct sound-level tests on equipment for this Project if specified sound levels are below standard ratings. LOW-VOLTAGE TRANSFORMERS 26-2200-4 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) PART 3 – EXECUTION 3.1 INSTALLATION A. Comply with safety requirements of IEEE C2. B. Arrange equipment to provide adequate spacing for access and for circulation of cooling air. C. Identify transformers and install warning signs according to Division 26 Section “Common Work Results for Electrical.” D. Tighten electrical connectors and terminals according to manufacturer’s published torque-tightening values. If manufacturer’s torque values are not indicated, use those specified in UL 486A and UL 486B. E. Provide channel iron rails, with spring or rubber sheet isolators, under all floor mounted transformers. Wall mounted transformers shall be suspended from the structure above or on brackets secured to the wall to carry transformer weight. F. Provide non-fused, lockable disconnect for each transformer not located within line of sight from its primary overcurrent protection device. Disconnect shall be located at the transformer and installed on the transformer primary feeder. Disconnect rating shall not be less than the associated transformer primary overcurrent protection rating. 3.2 GROUNDING A. Separately Derived Systems: Comply with NFPA 70 requirements for connecting to grounding electrodes and for bonding to metallic piping near the transformer. B. Comply with Division 26 Section “Grounding” for materials and installation requirements. 3.3 ADJUSTING A. Record transformer secondary voltage at each unit for at least 48 hours of typical occupancy period. Adjust transformer taps to provide optimum voltage conditions at secondary terminals. Optimum is defined as not exceeding nameplate voltage plus 10 percent and not being lower than nameplate voltage minus 3 percent at maximum load conditions. Submit recording and tap settings as test results. B. Connect buck-boost transformers to provide nameplate voltage of equipment being served, plus or minus five percent, at secondary terminals. C. Output Settings Report: Prepare a written report recording output voltages and tap settings. END OF SECTION PANELBOARDS 26-2416-1 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) SECTION 26-2416 PANELBOARDS PART 1 – GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. 1.2 SUMMARY A. This Section includes lighting and power panelboards and associated auxiliary equipment rated 600 V and less. B. Related Sections include the following: 1. 1.3 Division 26 Section “Common Work Results for Electrical Systems” for general materials and installation methods. SUBMITTALS A. Product Data: For each type of panelboard, accessory item, and component specified. B. Shop Drawings: For panelboards. Include dimensioned plans, sections, and elevations. Show tabulations of installed devices, major features, and voltage rating. Include the following: 1. 2. 3. 4. 5. Enclosure type with details for types other than NEMA 250, Type 1. Bus configuration and current ratings. Short-circuit current rating of panelboard. Features, characteristics, ratings, and factory settings of individual protective devices and auxiliary components. Wiring Diagrams: Details of schematic diagram including control wiring and differentiating between manufacturer-installed and field-installed wiring. C. Qualification Data: For firms and persons specified in “Quality Assurance” Article. D. Field Test Reports: Indicate and interpret test results for compliance with performance requirements. E. Panelboard Schedules: For installation in panelboards. Submit final versions after load balancing. F. Maintenance Data: For panelboard components to include in the maintenance manuals specified in Division 1. Include manufacturer’s written instructions for testing circuit breakers. 1.4 QUALITY ASSURANCE A. Listing and Labeling: Provide products specified in this Section that are listed and labeled. PANELBOARDS 26-2416-2 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) 1. 2. The Terms “Listed” and “Labeled”: As defined in the National Electrical Code, Article 100. Listing and Labeling Agency Qualifications: A “Nationally Recognized Testing Laboratory” as defined in OSHA Regulation 1910.7. B. Comply with NFPA 70. C. Comply with NEMA PB 1. 1.5 EXTRA MATERIALS A. Keys: 6 spares of each type for panelboard cabinet lock. PART 2 – PRODUCTS 2.1 MANUFACTURERS A. Manufacturer: Subject to compliance with requirements, provide products by one of the following (for each type of product): 1. 2. 3. 4. 2.2 Cutler-Hammer/Westinghouse General Electric Siemens Square D PANELBOARD FABRICATION A. Enclosures: Flush- or surface-mounted cabinets as indicated. NEMA PB 1, Type 1, unless otherwise indicated to meet environmental conditions at installed location. 1. 2. Outdoor Locations: NEMA 250, Type 3R. Other Wet or Damp Indoor Locations: NEMA 250, Type 4. B. Front: Secured to box with concealed trim clamps, unless otherwise indicated. Front for surface mounted panelboards shall be same dimensions as box. Fronts for flush panelboards shall overlap box, unless otherwise indicated. C. Phase, Neutral and Ground Buses: 1. 2. 3. Material: Hard drawn copper, 98 percent conductivity. Equipment Ground Bus: Adequate for feeder and branch-circuit equipment ground conductors. Bonded to box. Isolated Ground Bus (where indicated on plans): Adequate for feeder and branch-circuit equipment ground conductors. Insulated from box. D. Conductor Connectors: Suitable for use with conductor material and sizes. 1. 2. 3. Main and Neutral Lugs: Mechanical type. Ground Lugs and Bus-Configured Terminators: Mechanical type. Feed Through Lugs: Mechanical type. Locate at opposite end of bus from incoming lugs or main device. PANELBOARDS 26-2416-3 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) 4. Subfeed (Double) Lugs: Mechanical type. Locate at same end of bus as incoming lugs or main device. E. Directory Frame: Metal, mounted inside each panelboard door or approved plastic holder. F. Service Equipment Approval: Where indicated, listed for use as service equipment for panelboards with main service disconnect. G. Future Devices: Equip with mounting brackets, bus connections, and necessary appurtenances, for the overcurrent protective device ampere ratings indicated for future installation of devices. H. Panelboard Short-Circuit Rating: Fully rated to interrupt symmetrical short circuit current available at terminals. I. Circuit breaker types shall be selected to provide selective coordination above 0.1 seconds as determined be the electrical systems protective device study. Provide electronic trip breakers with adjustable settings as required for this selective coordination. J. Shunt Trip: Where indicated. K. Provide shunt trips for all breakers serving cooking equipment under exhaust hood in kitchens. L. Circuit breakers shall be bolt-on or I-line style and have interrupting ratings as shown on the drawings and/or panelboard/switchboard schedules. Where ratings are not specifically indicated provide interrupting ratings as shown below: 1. 208Y/120-volts: Frame Size 100 amp 200 amp 400 amp 800 amp 2. 480Y/277-volts: Frame Size 100 amp 200 amp 400 amp 800 amp PART 3 – EXECUTION 3.1 Minimum Symmetrical AIC at 240-volts 18000 amp 25000 amp 42000 amp 42000 amp INSTALLATION Minimum Symmetrical AIC at 480-volts 14000 amps 25000 amps 30000 amps 30000 amps PANELBOARDS 26-2416-4 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) A. Install panelboards and accessory items according to NEMA PB 1.1. B. Mounting Heights: Top of trim 74 inches (1880 mm) above finished floor, unless otherwise indicated. C. Mounting: Plumb and rigid without distortion of box. Mount flush panelboards uniformly flush with wall finish. D. Circuit Directory: Type directory to indicate installed circuit loads after balancing panelboard loads. Obtain approval before installing. E. Install filler plates in unused spaces. F. Provision for Future Circuits at Flush Panelboards: Stub four 1-inch (27-GRC) empty conduits from panelboard into accessible ceiling space or space designated to be ceiling space in the future. Stub four 1-inch (27-GRC) empty conduits into raised floor space or below slab not on grade. G. Wiring in Panelboard Gutters: Arrange conductors into groups, and bundle and wrap with wire ties after completing load balancing. H. Provide four locking devices per panel to be installed on spare circuit breakers unless otherwise noted or designated by the Owner. 3.2 IDENTIFICATION A. Identify field-installed wiring and components and provide warning signs as specified in Division 26 Section “Common Work Results for Electrical Systems.” B. Panelboard Nameplates: Label each panelboard with engraved laminated-plastic or metal nameplates mounted with corrosion-resistant screws. 3.3 GROUNDING A. Make equipment grounding connections for panelboards as indicated. B. Provide ground continuity to main electrical ground bus as indicated. 3.4 CONNECTIONS A. Tighten electrical connectors and terminals, including grounding connections, according to manufacturer’s published torque-tightening values. Where manufacturer’s torque values are not indicated, use those specified in UL 486A and UL 486B. 3.5 FIELD QUALITY CONTROL A. Balancing Loads: After Substantial Completion, but not more than 2 months after Final Acceptance, conduct load-balancing measurements and make circuit changes as follows: PANELBOARDS 26-2416-5 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) 1. 2. 3. 4. 5. 6. Perform Loads: After Substantial completion, but not more than 2 months after Final Acceptance, conduct load-balancing measurements and make circuit changes as follows: Perform measurements during period of normal working load as advised by Owner. For healthcare facilities, load readings shall be taken weekdays between 8:00 AM and 12:00 noon. Perform load-balancing circuit changes outside normal occupancy/working schedule of the facility. Make special arrangements with Owner to avoid disrupting critical 24-hour services such as fax machines and online data processing, computing, transmitting, and receiving equipment. Recheck loads after circuit changes during normal load period. Record all load readings before and after changes and submit test records. Tolerance: Difference exceeding 20 percent between phase loads, within a panelboard, is not acceptable. Rebalance and recheck as required to meet this minimum requirement. Report, in writing, any loads that exceed 80% of the circuit rating. B. Testing: After installing panelboards and after electrical circuitry has been energized, demonstrate product capability and compliance with requirements. 1. 2. Procedures: Perform each visual and mechanical inspection and electrical test stated in NETA ATS, Section 7.5 for switches and Section 7.6 for molded-case circuit breakers. Certify compliance with test parameters. Correct malfunctioning units on-site, where possible, and retest to demonstrate compliance; otherwise, remove and replace with new units, and retest. C. Infrared Scanning: After Substantial Completion, but not more than 2 months after Final Acceptance, perform an infrared scan of each panelboard. Remove fronts to make joints and connections accessible to a portable scanner. 1. 2. 3. 3.6 Follow-up Infrared Scanning: Perform an additional follow-up infrared scanning of each panelboard 11 months after date of Substantial Completion. Instrument: Use an approved infrared scanning device designed to measure temperature or detect significant deviations from normal values. Provide calibration record for device used. Record Infrared Scanning: Prepare a certified report identifying panelboards checked and describing results of scanning. Include notation of deficiencies detected, remedial action taken, and observations after remedial action. ADJUSTING A. Set field-adjustable switches and circuit-breaker trip ranges as indicated. 3.7 CLEANING A. On completion of installation, inspect interior and exterior of panelboards. Remove paint splatters and other spots, dirt, and debris. Touch up scratches and mars of finish to match original finish. END OF SECTION WIRING DEVICES 26-2726-1 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) SECTION 26-2726 WIRING DEVICES PART 1 - GENERAL 1.1 A. 1.2 A. 1.3 RELATED DOCUMENTS Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. SUMMARY This Section includes receptacles, connectors, switches, sensors and finish plates. SUBMITTALS A. Product Data: For each type of product indicated. B. Operation and Maintenance Data: For wiring devices to include in all manufacturers' packing label warnings and instruction manuals that include labeling conditions. 1.4 QUALITY ASSURANCE A. Source Limitations: Obtain each type of wiring device and associated wall plate through one source from a single manufacturer. Insofar as they are available, obtain all wiring devices and associated wall plates from a single manufacturer and one source. B. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use. C. Comply with NFPA 70. 1.5 A. COORDINATION Receptacles for Owner-Furnished Equipment: Match plug configurations. 1. Cord and Plug Sets: Match equipment requirements. PART 2 - PRODUCTS 2.1 A. MANUFACTURERS Manufacturers' Names: Shortened versions (shown in parentheses) of the following manufacturers' names are used in other Part 2 articles: 1. 2. 3. 4. 5. 6. Cooper Wiring Devices; a division of Cooper Industries, Inc. (Cooper). Hubbell Incorporated; Wiring Device-Kellems (Hubbell). Leviton Mfg. Company Inc. (Leviton). Pass & Seymour/Legrand; Wiring Devices & Accessories (Pass & Seymour). Bryant Electric Arrow Hart WIRING DEVICES 26-2726-2 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) 7. 8. 2.2 GE Company; GE Wiring Devices (GE) Lutron STRAIGHT BLADE RECEPTACLES A. Convenience Receptacles, 125 V, 20 A: configuration 5-20R, and UL 498. B. Hospital-Grade, Duplex Convenience Receptacles, 125 V, 20 A: Comply with NEMA WD 1, NEMA WD 6 configuration 5-20R, and UL 498 Supplement SD. C. Tamper-Resistant “Safety Type” Convenience Receptacles, 125 V, 20 A: Comply with NEMA WD 1, NEMA WD 6 configuration 5-20R, and UL 498. 1. 2.3 Comply with NEMA WD 1, NEMA WD 6 Description: Labeled to comply with NFPA 70, "Health Care Facilities" Article, "Pediatric Locations" Section. GFCI RECEPTACLES A. General Description: Straight blade, feed-through type. Comply with NEMA WD 1, NEMA WD 6, UL 498, and UL 943, Class A, and include indicator light that is lighted when device is tripped. B. Duplex GFCI Convenience Receptacles, 125 V, 20 A: C. Hospital-Grade, Duplex GFCI Convenience Receptacles, 125 V, 20 A: Comply with UL 498 Supplement SD. 2.4 TWIST-LOCKING RECEPTACLES A. Single Convenience Receptacles, 125 V, 20 A: NEMA WD 6 configuration L5-20R, and UL 498. B. Isolated-Ground, Single Convenience Receptacles, 125 V, 20 A: 1. 2.5 A. Comply with NEMA WD 1, Description: Comply with NEMA WD 1, NEMA WD 6 configuration L5-20R, and UL 498. Equipment grounding contacts shall be connected only to the green grounding screw terminal of the device and with inherent electrical isolation from mounting strap. Isolation shall be integral to receptacle construction and not dependent on removable parts. PENDANT CORD-CONNECTOR DEVICES Description: Matching, locking-type plug and receptacle body connector; NEMA WD 6 configurations L5-20P and L5-20R, heavy-duty grade. 1. Body: Nylon with screw-open cable-gripping jaws and provision for attaching external cable grip. 2. External Cable Grip: Woven wire-mesh type made of high-strength galvanizedsteel wire strand, matched to cable diameter, and with attachment provision designed for corresponding connector. WIRING DEVICES 26-2726-3 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) 2.6 A. 2.7 CORD AND PLUG SETS Description: Match voltage and current ratings and number of conductors to requirements of equipment being connected. 1. Cord: Rubber-insulated, stranded-copper conductors, with Type SOW-A jacket; with green-insulated grounding conductor and equipment-rating ampacity plus a minimum of 30 percent. 2. Plug: Nylon body and integral cable-clamping jaws. Match cord and receptacle type for connection. SNAP SWITCHES A. Comply with NEMA WD 1 and UL 20. B. Switches, 120/277 V, 20 A: Toggle Type C. Pilot Light Switches, 20 A: Toggle Type 1. D. Description: Single pole, with neon-lighted handle, illuminated when switch is "ON." Key-Operated Switches, 120/277 V, 20 A: 1. Description: Single pole, with factory-supplied key in lieu of switch handle. E. Single-Pole, Double-Throw, Momentary Contact, Center-Off Switches, 120/277 V, 20 A; for use with mechanically held lighting contactors. F. Key-Operated, Single-Pole, Double-Throw, Momentary Contact, Center-Off Switches, 120/277 V, 20 A; for use with mechanically held lighting contactors, with factorysupplied key in lieu of switch handle. 2.8 WALL-BOX DIMMERS A. Dimmer Switches: Modular, full-wave, solid-state units with integral, quiet on-off switches, with audible frequency and EMI/RFI suppression filters. B. Control: Continuously adjustable slider with single-pole or three-way switching. Comply with UL 1472. C. Incandescent Lamp Dimmers: 120 V; control shall follow square-law dimming curve. On-off switch positions shall bypass dimmer module. 1. D. Wattage as required; dimmers shall require no derating when ganged with other devices. Fluorescent Lamp Dimmer Switches: Modular; compatible with dimmer ballasts; trim potentiometer to adjust low-end dimming; dimmer-ballast combination capable of consistent dimming with low end not greater than 10 percent of full brightness. WIRING DEVICES 26-2726-4 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) E. 2.9 A. LED Dimmer Switches: Modular; compatible with dimming driver; dimmer-driver combination capable of consistent dimming with low end not greater than 10 percent of full brightness. OCCUPANCY SENSORS Wall-Switch Sensors: 1. Products: Subject to compliance with requirements, provide one by manufacturers listed in Part 2.1 or the following: a. 2. B. Description: Dual technology, with both passive-infrared- and ultrasonic-type sensing, 120/277 V, adjustable time delay up to 30 minutes, 1800-degree field of view, and a minimum coverage area of 900 sq. ft. (84 sq. m). Long-Range Wall-Switch Sensors: 1. Products: Subject to compliance with requirements, provide one by manufacturers listed in Part 2.1 or the following: a. 2. C. Watt Stopper (The). Description: Dual technology, with both passive-infrared- and ultrasonic-type sensing, 120/277 V, adjustable time delay up to 30 minutes, 110-degree field of view, and a minimum coverage area of 1200 sq. ft. (111 sq. m). Wide-Range Wall-Switch Sensors: 1. Products: Subject to compliance with requirements, provide one by manufacturers listed in Part 2.1 or the following: a. 2. D. Watt Stopper (The) Watt Stopper (The) Description: Passive-infrared type, 120/277 V, adjustable time delay up to 30 minutes, 150-degree field of view, with a minimum coverage area of 1200 sq. ft. (111 sq. m). Ceiling Mounted Sensors: 1. Products: Subject to compliance with requirements, provide one by manufacturers listed in Part 2.1 or the following: a. 2. Watt Stopper (The) Description: Dual technology, with both passive-infrared- and ultrasonic-type sensing, adjustable time delay up to 30 minutes, 360-degree field of view, and a minimum coverage area of 900 sq. ft. (84 sq. m). a. 120/277V when fixtures are controlled by a single sensor. WIRING DEVICES 26-2726-5 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) E. b. 24V when fixtures are controlled by multiple sensors. Provide with required 120/277V power supplies. c. 24V when normal and critical branch lighting circuits are controlled simultaneously by one or more sensors. Provide with separate normal and critical branch 120/277V power supplies. Exterior Occupancy Sensors: 1. Products: Subject to compliance with requirements, provide one by manufacturers listed in Part 2.1 or the following: a. 2. 2.10 A. B. 2.11 Watt Stopper (The) Description: Passive-infrared type, 120/277 V, weatherproof, adjustable time delay up to 15 minutes, 180-degree field of view, and 110-foot (34-m) detection range. Minimum switch rating: 1000-W incandescent, 500-VA fluorescent. WALL PLATES Single and combination types to match corresponding wiring devices. 1. Plate-Securing Screws: Metal with head color to match plate finish. 2. Material for Finished Spaces: 0.035-inch- (1-mm-) thick, satin-finished stainless steel. 3. Material for Unfinished Spaces: Galvanized steel. 4. Material for Mechanical Rooms, Electrical Rooms and Kitchen Areas: 0.035-inch(1-mm-) thick, satin-finished stainless steel 5. Material for Damp Locations: Cast aluminum with spring-loaded lift cover, and listed and labeled for use in "wet locations." Wet-Location, Weatherproof Cover Plates: NEMA 250, complying with type 3R weather-resistant, die-cast aluminum with lockable cover. FLOOR SERVICE FITTINGS A. Type: Modular, flush-type dual-service units suitable for wiring method used. B. Compartments: Barrier separates power from voice and data communication cabling. C. Service Plate: Rectangular, die-cast aluminum with satin finish. D. Power Receptacle: indicated. E. Voice and Data Communication Outlet: Blank cover with bushed cable opening NEMA WD 6 configuration 5-20R, gray finish, unless otherwise WIRING DEVICES 26-2726-6 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) 2.12 MULTIOUTLET ASSEMBLIES A. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: B. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. Hubbell Incorporated; Wiring Device-Kellems. 2. Wiremold Company (The). 3. Airey-Thompson Co. C. Components of Assemblies: Products from a single manufacturer designed for use as a complete, matching assembly of raceways and receptacles. D. Raceway Material: Metal, with manufacturer's standard finish. E. Wire: No. 12 AWG. 2.13 A. FINISHES Color: Wiring device catalog numbers in Section Text do not designate device color. 1. Wiring Devices Connected to Normal Power System: Ivory unless otherwise indicated or required by NFPA 70 or device listing. 2. Wiring Devices Connected to Emergency Power System: Red 3. Isolated-Ground Receptacles: As specified above, with orange triangle on face. PART 3 - EXECUTION 3.1 INSTALLATION A. Comply with NECA 1, including the mounting heights listed in that standard, unless otherwise noted. B. Coordination with Other Trades: 1. Take steps to insure that devices and their boxes are protected. Do not place wall finish materials over device boxes and do not cut holes for boxes with routers that are guided by riding against outside of the boxes. 2. Keep outlet boxes free of plaster, drywall joint compound, mortar, cement, concrete, dust, paint, and other material that may contaminate the raceway system, conductors, and cables. 3. Install device boxes in brick or block walls so that the cover plate does not cross a joint unless the joint is troweled flush with the face of the wall. WIRING DEVICES 26-2726-7 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) 4. C. D. Install wiring devices after all wall preparation, including painting, is complete. Conductors: 1. Do not strip insulation from conductors until just before they are spliced or terminated on devices. 2. Strip insulation evenly around the conductor using tools designed for the purpose. Avoid scoring or nicking of solid wire or cutting strands from stranded wire. 3. The length of free conductors at outlets for devices shall meet provisions of NFPA 70, Article 300, without pigtails. 4. Existing Conductors: a. Cut back and pigtail, or replace all damaged conductors. b. Straighten conductors that remain and remove corrosion and foreign matter. c. Pigtailing existing conductors is permitted provided the outlet box is large enough. Device Installation: 1. Replace all devices that have been in temporary use during construction or that show signs that they were installed before building finishing operations were complete. 2. Keep each wiring device in its package or otherwise protected until it is time to connect conductors. 3. Do not remove surface protection, such as plastic film and smudge covers, until the last possible moment. 4. Connect devices to branch circuits using pigtails that are not less than 6 inches (152 mm) in length. 5. When there is a choice, use side wiring with binding-head screw terminals. Wrap solid conductor tightly clockwise, 2/3 to 3/4 of the way around terminal screw. 6. Use a torque screwdriver when a torque is recommended or required by the manufacturer. 7. When conductors larger than No. 12 AWG are installed on 15- or 20-A circuits, splice No. 12 AWG pigtails for device connections. 8. Tighten unused terminal screws on the device. 9. When mounting into metal boxes, remove the fiber or plastic washers used to hold device mounting screws in yokes, allowing metal-to-metal contact. WIRING DEVICES 26-2726-8 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) E. Receptacle Orientation: 1. Install ground pin of vertically mounted receptacles up, and on horizontally mounted receptacles to the right. 2. Install hospital-grade receptacles in patient-care areas with the ground pin or neutral blade at the top. F. Device Plates: Do not use oversized or extra-deep plates. Repair wall finishes and remount outlet boxes when standard device plates do not fit flush or do not cover rough wall opening. G. Dimmers: 1. Install dimmers within terms of their listing. 2. Verify that dimmers used for fan speed control are listed for that application. 3. Install unshared neutral conductors on line and load side of dimmers according to manufacturers' device listing conditions in the written instructions. H. Arrangement of Devices: Unless otherwise indicated, mount flush, with long dimension vertical and with grounding terminal of receptacles on top. Group adjacent switches under single, multigang wall plates. Devices of normal and emergency branches are not to be ganged together, provide separate outlet boxes. I. Adjust locations of floor service outlets and service poles to suit arrangement of partitions and furnishings. J. Provide tamper resistant receptacles in pediatric and psychiatric patient care areas and as indicated on plans. K. Plates for safety type and tamper resistant receptacles shall have tamper resistant screws. L. Receptacles in patient care areas shall be hospital grade. M. Install receptacles shown on the drawings as “special mounting height” at mounting height indicated on drawings. Where no mounting height is indicated by drawings and receptacles are above counters, mount receptacles with centers 4” above top of counter. If counter has a backsplash, receptacles shall be mounted with centers 4” above top of backsplash. Where special mounting height receptacles are not shown above counters and no mounting height is indicated, receptacle mounting height shall match adjacent light switches or above counter receptacles. Coordinate installation of all special mounting height receptacles with the architectural drawings and elevations. 3.2 A. 3.3 A. IDENTIFICATION Comply with Division 26 Section "Common Work Results." FIELD QUALITY CONTROL Perform tests and inspections and prepare test reports. WIRING DEVICES 26-2726-9 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) B. C. 1. In healthcare facilities, prepare reports that comply with recommendations in NFPA 99. 2. Test Instruments: Use instruments that comply with UL 1436. 3. Test Instrument for Convenience Receptacles: Digital wiring analyzer with digital readout or illuminated LED indicators of measurement. Tests for Receptacles: 1. Polarity 2. Ground Impedance: Values of up to 2 ohms are acceptable. 3. GFCI Trip: Test for tripping values specified in UL 1436 and UL 943. 4. Using the test plug, verify that the device and its outlet box are securely mounted. 5. The tests shall be diagnostic, indicating damaged conductors, high resistance at the circuit breaker, poor connections, inadequate fault current path, defective devices, or similar problems. Correct circuit conditions, remove malfunctioning units and replace with new ones, and retest as specified above. Test straight blade hospital-grade receptacles for the retention force of the grounding blade according to NFPA 99. Retention force shall be not less than 4 oz. (115 g). END OF SECTION ENCLOSED SWITCHES & CIRCUIT BREAKERS 26-2816-1 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) SECTION 26-2816 ENCLOSED SWITCHES AND CIRCUIT BREAKERS PART 1 – GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. 1.2 SUMMARY A. This Section includes individually mounted switches and circuit breakers used for the following: 1. 2. 3. 4. Service disconnect switches Feeder and equipment disconnect switches Feeder and branch-circuit protection Motor disconnect switches B. Related Sections: The following Sections contain requirements that relate to this Section: 1. 1.3 Division 26 Section “Wiring Devices” for attachment plug and receptacles, and snap switches used for disconnect switches. SUBMITTALS A. General: Submit each item in this Article according to the Conditions of the Contract and Division 1 Specification Sections. B. Product Data for switches, circuit breakers, and accessories specified in this Section. Include the following: 1. 2. 3. Descriptive data and time-current curves Let-through current-curves for circuit breakers with current-limiting characteristics Coordination charts and tables and related data C. Wiring diagrams detailing wiring for power and control systems and differentiating between manufacturer- installed and field-installed wiring. D. Maintenance data for tripping devices to include in the operation and maintenance manual specified in Division 1. 1.4 COORDINATION A. Coordinate layout and installation of switches, circuit breakers and components with equipment served and adjacent services. Maintain required workspace clearances and required clearances for equipment access doors and panels. ENCLOSED SWITCHES & CIRCUIT BREAKERS 26-2816-2 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) PART 2 – PRODUCTS 2.1 MANUFACTURERS A. Manufacturer: Subject compliance with requirements, provide products by one of the following (for each type of product): 1. 2. 3. 4. 2.2 Eaton Electrical/Cutler-Hammer General Electric Seimens Square D DISCONNECT SWITCHES A. Enclosed, Non-fusible Switch: NEMA KS 1, Type HD, with lockable handle. B. Enclosed, Fusible Switch, 800 A and Smaller: NEMA KS1, Type HD, clips to accommodate specified fuses, enclosure consistent with environment where located, handle lockable with 2 padlocks, and interlocked with cover in CLOSED position. C. Enclosure: MENA KS1, Type 1, unless otherwise specified or required to meet environmental conditions of installed location. 1. 2. 3. 4. 2.3 Outdoor Locations: Type 3R Kitchen Areas: Type 4X, stainless steel Other Wet or Damp Indoor Locations: Type 4 Hazardous Areas Indicated on Drawings: Type 7C ENCLOSED CIRCUIT BREAKERS A. Enclosed, Molded-Case Circuit Breaker: NEMA AB 1, with lockable handle. B. Characteristics: Frame size, trip rating, number of poles, and auxiliary devices as indicated and interrupting rating to meet available fault current. C. Application Listing: Appropriate for application, including switching florescent lighting loads or heating, air-conditioning, and refrigerating equipment. D. Circuit Breakers, 200 A and Larger: Trip units interchangeable within frame size. E. Circuit Breakers, 400 A and Larger: Field-adjustable, short-time and continuous-current settings. F. Current-limiting Trips: Where indicated, let through for ratings less than NEMA AB 1, Class RK-5. G. Current Limiters: Where indicated, integral fuse listed for circuit breaker. H. Molded-Case Switch: Where indicated, molded-case circuit breaker without trip units. ENCLOSED SWITCHES & CIRCUIT BREAKERS 26-2816-3 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) I. Lugs: Mechanical lugs and power-distribution connectors for number, size, and material of conductors indicated. J. Shunt Trip: Provide for elevator feeders, kitchen equipment under range hood, and where indicated. K. Accessories: As indicated. L. Enclosure: NEMA AB 1, Type 1, unless otherwise specified or required to meet the environmental conditions of installed location. 1. 2. 3. 4. Outdoor Locations: Type 3R Kitchens Areas: Type 4X, Stainless steel Other Wet or Damp Indoor Locations: Type 4 Hazardous Areas indicated on Drawings: Type 7C M. Circuit breakers installed outdoors or inside spaces without HVAC temperature control shall be electronic trip type. N. Circuit breaker types shall be selected to provide selective coordination above 0.1 seconds as determined be the electrical systems protective device study. Provide electronic trip breakers with adjustable settings as required for this selective coordination. O. Circuit breaker shall have interrupting ratings as on the drawings and/or panelboard/ switchboard schedules providing service to the breaker. 1. 208Y/120-volts: Frame Size 100 Amp 200 Amp 400Amp 800 Amp 2. 480Y/277-volts Frame Size 100 Amp 200 Amp 400Amp 800 Amp PART 3- EXECUTION 3.1 Minimum Symmetrical AIC at 240- volts 18000 Amps 25000 Amps 42000 Amps 42000 Amps INSTALLATION Minimum Symmetrical AIC at 480- volts 14000 Amps 25000 Amps 30000 Amps 30000 Amps ENCLOSED SWITCHES & CIRCUIT BREAKERS 26-2816-4 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) A. Install disconnect switches and circuit breakers in locations as indicated, according to Manufacturer’s written instructions. B. Install disconnect switches and circuit breakers level plumb. C. Install wiring between disconnect switches, circuit breakers, control, and indications devices. D. Connect disconnect switches and circuit breakers and components to wiring system and to ground as indicated and instructed by manufacturer. 1. Tighten electrical connectors and terminals according to manufacturer’s published torque- tightening values. Where manufacturer’s torque values are not indicated, use those specified in UL 486B. E. Identify each disconnect switch and circuit breaker according to requirements specified in Division 26 Section “Common Work Results.” F. Each disconnect downstream from a variable frequency drive shall have a control interlock for the VFD. 3.2 ADJUSTING A. Set field-adjustment disconnect switches and circuit-breaker trip ranges as indicated. 3.3 CLEANING A. After completing system installation, including outlet and devices, inspect exposed finish. Remove burrs, dirt, and construction debris and repair damaged finishes including chips, scratches, and abrasions. END OF SECTION MOTOR CONTROLLERS 26-2923-1 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) SECTION 26-2923 MOTOR CONTROLLERS PART 1 – GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Section, apply to this Section. 1.2 SUMMARY A. This Section includes ac motor-control devices rate 600 V and less that are supplied as enclosed units. B. Related Section includes the following: 1. Division 26 Section “Common Work Results” for general materials, labeling materials and installation methods. C. Furnish and install independently mounted or motor control center mounted across-theline motor controllers in coordination with the mechanical and plumbing drawings and as required by Division 21/22/23. Controllers provide as part of custom equipment control panels; multispeed controllers; variable frequency; part-winding; wye-delta, and other reduced-voltage controllers; and solid-state variable controllers shall be furnished under Division 21/22/23 and Install under this Division (except where the controller or panel is mounted on the mechanical equipment). 1.3 SUBMITTALS A. Product Data: For products specified in this Section, include dimensions, ratings and data on features and components. B. Field Test Reports: Indicate and interpret test results for compliance with performance requirements. C. Maintenance Data: For products to include in the maintenance manuals specified in Division 1. D. Load-Current and Overload-Relay Heater List: Compile after motors have been installed and arrange to demonstrate that selection of heaters suits actual motor nameplate fullload currents. E. Qualifications Data for Field Testing Agency: Certificates, signed by Contractor, certified that agency compiles with requirements specified in “Quality Assurance” Article below. 1.4 QUALITY ASSURANCE A. Manufacturer Qualifications: Maintain, within 100 miles (160km) of Project site, a service center capable of providing training, parts, and emergency maintenance and repairs. MOTOR CONTROLLERS 26-2923-2 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) B. Field Testing Agency Qualifications: An independent testing agency with experience and capability to satisfactorily conduct testing indicated without delaying the Work. Evaluation criteria shall be according to ASTME E 699. C. Source Limitations: Obtain similar motor-control devices through one source from a single manufacturer. D. Comply with NEPA 70. E. Listing and Labeling: Provide motor controllers specified in this Section that are listed and labeled. F. The Team “Listed” and “Labeled”: As defined in the National Electrical Code, Article 100. G. Listing and Labeling Agency Qualifications: A “Nationally Recognized Testing Laboratory” as defined in OSHA Regulation 1910.7. 1.5 COORDINATION A. Coordinate features of controllers and accessory devices with pilot devices and control circuits to which they connect. B. Coordinate features, accessories, and function of each motor controller with the ratings and characteristics of the supply circuit, the motor, the required control sequence, and the duty cycle of the motor and load. C. Provide accessories in accordance with the Division 15 drawings, schedules, and specifications. PART 2- PRODUCTS 2.1 MANUFACTURERS A. Manufacturers: Subject to compliance with requirements, provide products by one of the following (for each type of product): 1. 2. 3. 4. 5. 6. 7. 2.2 ABB Power Distribution, Inc.; ABB Control, Inc. Subsidiary Allen-Bradley Co.; Industrial Control Group Eaton Corp.; Westinghouse & Cutler-Hammer Products Furnas Electric Co. General Electric Co.; Electrical Distribution & Control Div. Siemens Energy & Automation, Inc. Square D Co. MANUAL MOTOR CONTROLLERS A. Description: NEMA ICS 2, general purpose, Class A with toggle action and element. 2.3 MAGNETIC MOTOR CONTROLERS MOTOR CONTROLLERS 26-2923-3 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) A. Description: NEMA ICS 2, Class A, full voltage, non-reversing, across the line, unless otherwise indicated. Solid-state controllers shall be provided in lieu of magnetic controllers only where specifically shown on the drawings. B. Control Circuit: 120V; obtain from integral fuse control power transformer, unless otherwise indicated. Include a control power transformer with adequate capacity to operate connected pilot, indicated and control devices, plug 100 percent spare capacity. C. Combination Controller: Factory-assembles combination controller and disconnect switch with or without overcurrent protection as indicated. 1. 2. 3. Circuit-Breaker Disconnect: NEMA AB 1, motor-circuit protector with fieldadjustable short- circuit trip coordinated with motor locked-rotor amperes. Overload Relay: Ambient-compensated type with inverse-time-current characteristics. Provide with heaters or sensors in each phase matched to nameplate full-load current of specific motor to which they connect, and with appropriate adjustment for duty cycle. Multispeed-Motor Controller: Match controller to motor type, application, and number of speeds; include the following accessories: a. b. c. 4. 5. 2.4 Compelling relay ensures motor will start only at low speed. Accelerating relay ensures properly timed acceleration through speeds lower than that selected. Decelerating relay ensures automatically timed deceleration through each speed. Wye-Delta Controller: NEMA ICS 2, closed transition with adjustable time delay. Autotransformer Reduced-voltage Controller: NEMA ICS 2, closed transition. ENCLOSERS A. Description: Flush or surface-mounted cabinets as indicated. NEMA 250, Type 1, unless otherwise indicated to meet environmental conditions at installed location. 1. 2. 3. 4. 2.5 Outdoor Locations: NEMA 250, Type 3R Kitchen Areas: NEMA 250, Type 4X, stainless steel Other Wet or Damp Indoor Locations: NEMA 250, Type 4 Hazardous Areas Indicated on Drawings: NEMA 250, Type 7C ACCESSORIES A. Devices are factory installed in controller enclosure, unless otherwise indicated. B. Push-Button Stations, Pilot Lights, and Selector Switches: NEMA ICS 2, heavy-duty type. C. Stop and Lockout Push-Button Station: Momentary-break push-button station with a factory-applied hasp arranged so padlock can be used to lock push button in depressed position with control circuit open. D. Control Relays: Auxiliary and adjustable time-delays. MOTOR CONTROLLERS 26-2923-4 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) E. Factory mounted with Nationally Recognized Testing Laboratory listed and labeled mounted device. F. Two (2) N.O. and two (2) N.C. auxiliary contacts. PART 3- EXECUTION 3.1 APPLICATIONS A. Select features of each motor controller to coordinate with ratings and characteristics of supply circuit and motor; required control sequence; duty cycle of motor, drive, and load; and configuration of pilot device and control circuit affecting controller functions. B. Select horsepower rating of controllers to suit motor controlled. C. Use fractional-horsepower manual controllers for single-phase motors, unless otherwise indicated. D. Push-Button Stations: In covers of magnetic controllers for manually started motors where indicated, start contact connected in parallel with sealing auxiliary contact for lowvoltage protection. E. Hand-Off-Automatic Selector Switches: In covers of manual and magnetic controllers of motors started and stopped by automatic controls or interlock with other equipment. 3.2 INSTALLATION A. Furnish and install independently mounted across-the-line and reduce voltage (wyedelta and auto- transformer) motor-control devices motor-control devices in according with the mechanical and as required by Division 21/22/23. Controllers provided as part of custom equipment control panels, variable frequency controllers, and part winding controllers shall be furnished under Division 21/22/23 and installed under this Division (expect where the controllers or control panel is mounted on the mechanical equipment). Independently mounted motor controllers shall include individually wall-mounted and MCC- mounted units. B. Reduced voltage starts shall be in accordance with the mechanical and plumping drawings. In general, chillers compressors and pumps shall be wye-delta closed transition starters. Starters for high torque loads (such as fans) shall be 50%, 65%, 80%, tap auto-transformer type. C. Motors 60 HP and larger and larger and motors as designed on the mechanical and plumbing drawings shall have reduced voltage starters. Size shall be as specified on the drawings or as submitted under Division 21/22/23. Motors larger than 20 HP that are not served by VFD’s shall have power factor capacitors connected to the controller between the main contacts and the overloads heaters. D. Location: Locate controllers within sight of motors controlled, unless otherwise indicated. E. For control equipment at walls, bolt units to wall or mount on lightweight structural-steel channels bolted to wall. For controllers not at walls, provide freestanding racks conforming to Division 26 Section “Common Work Results.” MOTOR CONTROLLERS 26-2923-5 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) F. Install freestanding equipment on concrete housekeeping bases conforming to Section “Cast- in-Place Concrete.” G. Motor-Controller Fuse: Install indicate fuse in each fusible switch. 3.3 IDENTIFICATION A. Identify motor-control components and control wiring according to Division 26 Section “Common Work Results.” 3.4 CONTROL WIRING INSTALLATION A. Wiring between motor control devices shall comply with specifications Sections 26 0500, 26 0519, 26 0523, and 26 0533. B. Bundle, train, and support wiring in enclosures. C. Connect hand-off automatic switch and other automatic control devises where available. 1. 3.5 Connect selector switches to bypass only the manual and automatic control devices that have no safety-type control devices such as low- and high-pressure cutouts, high-temperature cutouts, and motor overload protectors. CONNECTIONS A. Tighten connectors, terminals, bus joints, and mountings. Tighten field-connected connectors and terminals, including screws and bolts, according to manufacture’s published torque-tightening values. Where manufacturer’s torque values are not indicated, use those specified in UL 486A and UL 486B. 3.6 FIELD QUALITY CONTROL A. Testing: After installing motor controllers and after electrical circuitry has been energized, demonstrate product capability and compliance with requirements. B. Procedures: Perform each visual and mechanical inspection and electrical test stated in NETA. C. Remove and replace malfunctioning units with new units, and retest. 3.7 CLEANING A. Remove paint splatters and other spots, dirt, and debris. Touch up scratches and mars of finish to match original finish. Clean devices internally, using methods and methods and materials recommended by manufacturer. END OF SECTION INTERIOR LIGHTING 26-5100-1 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) SECTION 26-5100 INTERIOR LIGHTING PART 1 – GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specifications Sections, apply to this Section. 1.2 SUMMARY A. This Section includes interior lighting fixtures, lighting fixtures mounted on exterior building surfaces, lamps, ballasts, emergency lighting units, and accessories. 1.3 SUBMITTALS A. Product Data: For each type of lighting fixtures indicated, arranged in order of fixture designation. Include data on features, accessories, and the following: 1. 2. 3. 4. 5. 6. Dimensions of fixtures. Certified results of independent laboratory tests for fixtures and lamps for electrical ratings and photometric data. Certified results of laboratory tests for fixtures and lamps for photometric performance. Emergency lighting unit battery and charger. Florescent and high-intensity-discharge ballasts. Type of lamps. B. Shop Drawings: Show details of nonstandard of custom fixtures. Indicate dimensions, weights, method of field assembly, components, features, accessories. 1. Wiring Diagram: Detail wiring for fixtures and differentiate between manufacturerinstalled and field-installed wiring. C. Coordinating Drawings: Reflected ceiling plans and sections drawn to scale and coordinating fixture installation with ceiling grid, ceiling-mounted items, and other components in the vicinity. Include work of all trades that if to be installed near equipment. D. Field Test Reports: Indicate and interpret test results for compliance with performance requirements. E. Maintenance Data: For lighting fixtures to include in maintenance manuals specified in Division 1. 1.4 QUALITY ASSURANCE A. Fixtures, Emergency Lighting Units, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by testing agency acceptance to authorities having jurisdiction. INTERIOR LIGHTING 26-5100-2 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) B. Comply with NFPA 70. C. NFPA 101 Compliance: Comply with visibility and luminance requirements for exit signs. 1.5 COORDINATION A. Fixtures, Mounting Hardware, and Trim: Coordinate layout and installation of lighting features with ceiling system and other construction. Review the architect’s ceiling plans and/or ceilings schedules and make adjustments as required before ordering light fixtures. PART 2 – PRODUCTS 2.1 MANUFACTURERS A. Products: Subject to compliance with requirements, provide one of the products indicated for each designation in the Lighting Fixture Schedule(s) on the drawings. B. Manufacturers and materials were selected on a basis of performance and aesthetics. If any substitution is considered, the piece of equipment in question must be determined by the Engineer to be equivalent to the specified item. C. Lamps shall be General Electric, Sylvania or Philips, unless specifically noted on the drawings. D. Ballasts shall be General Electric, Sylvania or Philips, unless specifically noted on the drawings. E. Lamps and ballasts shall be provided by the same manufacturer. 2.2 FIXTURES AND FIXTURE COMPONENTS, GENERAL A. Metal Parts: Free from burrs, sharp corners, and edges. B. Sheet Metal Components: Steel, unless otherwise indicated. Form and support to prevent warping and sagging. C. Doors, Frames, and Other Internal Access: Smooth operating, free from light leakage under operating conditions, and arranged to permit relamping without use of tools. Arrange doors, frames, lenses, diffusers and other pieces to prevent accidental falling during relamping did and when secured in operating position. D. Reflecting Surfaces: Minimum reflectance as follows, unless otherwise indicated: 1. 2. 3. 4. White Surfaces: 85 percent Specular Surfaces: 83 percent Defusing Specular Surfaces: 75 percent Laminated Silver Metallized Film: 90 percent E. Lenses, Diffusers, Covers, and Globes: 100% percent virgin acrylic plastic or annealed crystal glass unless otherwise indicated. INTERIOR LIGHTING 26-5100-3 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) 2.3 1. Plastic: Higher resistance to yellowing and other changes due to aging, exposure to heat and ultraviolet radiation. 2. Lens Thickness: 0.125 inch (3 mm) minimum, unless greater thickness is indicated. FLUORESCENT LAMP BALLASTS A. General Requirements: Unless otherwise indicated, features include the following: 1. 2. 3. Designed for type and quantity of lamps indicated at full light output. Total Harmonic Distortion Rating: Less than 10 percent. Sound Rating: A B. Electronic Ballasts for Liner Lamps: Unless otherwise indicated, features include the following, besides those in “General Requirements” Paragraph above: 1. 2. 3. 4. Certified Ballast Manufacturer Certification: Indicated by label. Power Factor: 95 percent, minimum. Encapsulation: Without voids in potting compound. Parallel Lamp Circuits: Multiply lamp ballasts connected to minimum full light output on surviving lamps if one or more lamps fail. C. Ballasts for Compact Lamps in Recessed Fixtures: Unless otherwise indicated, additional features include the following: 1. 2. 3. 4. 5. 6. Type: Electronic or electromagnetic, fully encapsulated in potting compound. Power factor: 95 percent, minimum. Operating Frequency: 20 kHz or higher. Flicker: Less than 5 percent. Lamp current Crest Factor: Less than 1.7. Transient protection: Comply with 47 CFR, Chapter 1, Part 18, Subpart C for limitations on electromagnetic and radio-frequency interference for nonconsumer equipment. D. Ballasts for Compact Lamps in Non-recessed Fixtures: Unless otherwise indicated, additional features include the following: 1. 2. 3. 4. Power Factor: 95 percent, minimum. Ballast Coil Temperature: 65 deg C, maximum. Transient Protection: Comply with IEE C62.41 for Category A1 locations. Interference: Comply with 47CFR, Chapter 1, Part 18, Subpart C for limitations on electromagnetic and radio-frequency interference for non-consumer equipment. E. Ballasts for Dimmer-Controlled Fixtures: Comply with general and fixture-related requirements above for electronic ballasts. 1. 2. Dimming Range: 100 to 10 percent of rated lamp lumens. Ballast Input Watts: Can be reduced to 20 percent of normal. INTERIOR LIGHTING 26-5100-4 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) 3. 4. Compatibility: Certified by manufacturer for use with specific dimming system and/or control devices indicated for use with each dimming ballast. Control: Coordinate wiring from ballast to control device to ensure that ballast, controller and connecting wiring are compatible. F. Ballasts for Low-Temperature Environments: As follows: 1. 2. Temperatures 0 Deg F (Minus 17 Deg C) and Above: Electrometric type rated for 0 deg F (minus 17 deg C) starting temperature. Temperatures Minus 20 Deg F (Minus 29 Deg C) and Above: Electromagnetic type designed for use with high-output lamps. G. Luminaires controlled by occupancy sensors shall have programmed start ballasts. 2.5 EXIT SIGNS A. General Requirements: Comply with UL 924 and the following: 1. Sign Colors and Lettering Size: Comply with authorities having jurisdiction. B. Internally Lighted Signs: As follows: 1. 2.6 Lamps for AC Operation: Light-emitting Diodes, 70,000 hours minimum rated lamp life. EMERGENCY LIGHTING UNITS A. General Requirements: Self-contained units. Comply with UL 924. Units include the following features: 1. 2. 3. 4. 5. 2.7 Battery: Sealed, maintenance-free, lead-acid type with minimum 10-year nominal life and special warranty. Charger: Fully automatic, solid-state type with sealed transfer relay. Operation: Relay automatically turns lamp on when supply circuit voltage drops to 80 percent of nominal voltage or below. Lamp automatically disconnects from battery when voltage approaches deep-discharge level. When normal voltage is restored, relay disconnects lamps, and battery is automatically recharged and floated on charger. Wire Guard: Where indicated, heavy-chrome-plated wire arranged to protect lamp heads or fixtures. Integral Time-Delay Relay: Arranged to hold unit on for fixed interval restoring power after an outage. Provides adequate time delay to permit high-intensitydischarge lamps to restrike and develop adequate output. EMERGENCY FLUORESCENT POWER SUPPLY UNIT A. Internal Type: Self-contained, modular, battery-inverter unit factory mounted within fixture body. Comply with 924. 1. Test Switch and Light-Emitting Diode Indicator Light: Visible and accessible without opening fixture or entering ceiling space. INTERIOR LIGHTING 26-5100-5 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) 2. 3. 4. 2.8 Battery: Sealed, maintenance-free, nickel-cadmium type with minimum 10-yr nominal life. Charger: Fully automatic, solid-state, constant-current type. Operation: Relay automatically energizes lamp from unit when normal supply circuit voltage drops to 80 percent of nominal voltage or blow. When normal voltage is restored, relay disconnects lamp, and battery is automatically recharged and floated on charger. LAMPS A. Fluorescent Color Temperature and Minimum Color-Rendering Index: 4100 K and 85 CRI, unless otherwise indicated. B. Non-compact Florescent Lamp Life: Rated average is 20,000 hours at 3 hours per start when used on rapid-start circuits. C. Metal-Halide Color Temperature and Minimum Color-Rendering Index: 3600 K and 70 CRI, unless otherwise indicated. D. Two pin 9 watt twin tube fluorescent lamps with two pins will not be accepted. Provide 9 and 13 watt double twin tube with four pins and E-O-L feature to prevent end of life overheating. 2.9 FIXTURE SUPPORT COMPONENTS A. Comply with Division 26 Section “Basic Electrical Materials and Methods,” for channeland angle-iron supports. B. Single-Stem Hangers: 1/2-inch (12-mm) steel tubing with swivel ball fitting and ceiling canopy. Finish same as fixture. C. Twin-Stem Hangers: Two, 1/2-inch (12-mm) steel tubes with single canopy arranged to mount a single fixture. Finish same as fixture. D. Rod Hangers: 3/16-inch-(5-mm-) minimum diameter, cadmium-plated, treaded steel rod. E. Hook Hangers: Integrated assembly matched to fixture and line voltage and equipped with treaded attachment, cord, and locking-type plug. F. Aircraft Cable Support: Use cable, anchorages, and intermediate supports recommended by fixture manufacturer. 2.10 FINISHES A. Fixtures: Manufacturer’s standard, unless otherwise indicated. 1. 2. Paint Finish: Applied over corrosion-resistance treatment or primer, free of defects. Metallic Finish: Corrosion resistant. INTERIOR LIGHTING 26-5100-6 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) PART 3- EXECUTION 3.1 INSTALLATION A. Fixtures: Set level, plumb, and square with ceiling and walls, and secure according to manufacturer’s written instructions and approved submittal materials. Install lamps in each fixture. B. Support for Fixtures in or on Grid-Type Suspended Ceilings: Use grid for support. 1. 2. 3. Support Clips: Fasten to fixtures and to ceiling grid members at or near each fixture corner. Fixtures of Size Less Than Ceiling Grid: Arrange as indicated on reflected on reflected ceiling plans or center in acoustical panel, and support fixtures independently with at least two 3/4-inch (20-mm) metal channels spanning and secured to ceiling tees. Install a minimum of four ceiling support system rods or wires for each fixture. Locate not more than 6 inches (150 mm) from fixture cornets. C. Suspended Fixture Support: As follows: 1. 2. 3. 4. Pendants and Rods: Where longer than 48 inches (1200 mm), brace to limit swinging. Stem-Mounted, Single-Unit Fixtures: Suspend with twin-stem hangers. Continuous Rows: Use tubing or stem for wiring at one point and tubing or rod for suspension for each unit length of fixtures chassis, including one at each end. Continuous Rows: Suspend from cable installed according to fixture manufacturer’s written instructions and details on drawings. D. Provide fixtures as scheduled on the electrical drawings. Determine type of ceiling to be installed in each space form architectural drawings and schedules and provide fixtures suitable for the exact ceiling type. E. Connection to lay-in fixtures, above acoustical and drywall ceilings, shall be made with 6-foot length of flexible conduit. F. Provide fixtures with multiple ballasts for independent switching control of inboard and outboard lamps where dual level switching is indicated on the drawings. 3.2 FIELD CONTROL A. Inspect each installed fixture for damage. Replace damage fixtures and components. B. Provide instruments, as many as required, to make and record test results. C. Tests: As follows: 1. 2. 3. 4. Verify normal operation of each fixture after installation. Emergency Lighting: Interrupt electrical supply to demonstrate proper operation. Verify normal transfer to battery source and retransfer to normal. Report results in wiring. INTERIOR LIGHTING 26-5100-7 MP and OB Additions and Renovations for Crawford Memorial Hospital – 07477.01(25) D. Malfunctioning Fixtures and Components: Replace or repair, then retest. Repeat procedure until units operate properly. E. Corrosive Fixtures: Replace during warranty period. 3.3 CLEANING AND ADJUSTING A. Clean fixtures internally and externally after installation. Use methods and materials recommended by manufacturer. B. Adjust amiable fixtures to provide required light intensities. END OF SECTION
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