Construction Specifications Volume 3_654-212.pdf
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About this file
This document is a Request for Proposal (RFP) for a Design-Build project to replace the seismically deficient Boiler Plant, Building 8 at the VA Sierra Nevada Healthcare System in Reno, Nevada.
The key requirements of the RFP are:
- Design and construct a new 11,000 GSF Central Utility Plant to house boilers, chillers, cooling towers, and a bulk oxygen system to provide steam, heating and cooling for the entire VA campus. This includes relocating the main power feed from the current boiler plant location.
- Test and commission all new equipment and systems in the Central Utility Plant.
- Demolish the existing Boiler Plant building and convert the site into a paved, striped parking lot.
- Improve an existing gravel parking lot, including paving, striping, drainage, and lighting. The RFP provides conceptual drawings, narratives, and supporting design specifications for informational purposes, but the selected Design-Build contractor is not required to incorporate this preliminary design information. The contractor will be responsible for providing all required professional design services and construction through licensed firms in the state of Nevada. The final design and construction must fully comply with the VA Technical Design Library without any deviations, unless approved by the Contracting Officer.
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Text version
Replace Seismically Deficient Boiler Plant, Building 8 VA Project 654-212
VA Sierra Nevada Healthcare System - Reno, NV
00 01 10-1
TABLE OF CONTENTS
DEPARTMENT OF VETERANS AFFAIRS
VHA MASTER SPECIFICATIONS
Section 00 01 10
SECTION NO. DIVISION AND SECTION TITLES DATE
DIVISION 00 - SPECIAL SECTIONS
00 01 15 List of Drawing Sheets 05-20 00 11 21 Request for Proposal to Design Build 06-20
DIVISION 01 - GENERAL REQUIREMENTS
01 00 00 General Requirements 01-21 01 32 16.01 Architectural and Engineering CPM Schedules 03-20 01 32 16.17 Network Analysis Schedules – Major Design/Build
Projects 06-19
01 33 23 Shop Drawings, Product Data, and Samples 05-17 01 35 26 Safety Requirements 07-20 01 42 19 Reference Standards 11-20 01 45 00 Quality Control 02-21 01 45 29 Testing Laboratory Services 11-18 01 57 19 Temporary Environmental Controls 01-21 01 74 19 Construction Waste Management 01-21 01 91 00 General Commissioning Requirements 10-15
DIVISION 02 – EXISTING CONDITIONS
02 21 13 Site Surveys 01-21 02 41 00 Demolition 08-17 02 65 00 Underground Storage Tank Removal 01-21
DIVISION 03 – CONCRETE
03 30 00 Cast-in-Place Concrete 01-21
DIVISION 04 – MASONRY
04 05 13 Masonry Mortaring 10-17 04 05 16 Masonry Grouting 01-21 04 20 00 Unit Masonry 08-17
DIVISION 05 – METALS
05 12 00 Structural Steel Framing 11-18 05 36 00 Composite Metal Decking 01-21 05 40 00 Cold-Formed Metal Framing 01-21
DIVISION 06 – WOOD, PLASTICS AND COMPOSITES – NOT USED
VA Sierra Nevada Healthcare System - Reno, NV
00 01 10-2
DIVISION 07 - THERMAL AND MOISTURE PROTECTION
07 13 52 Modified Bituminous Sheet Waterproofing 01-21 07 21 13 Thermal Insulation 01-21 07 22 00 Roof and Deck Insulation 01-21 07 24 00 Exterior Insulation and Finish Systems 01-21 07 54 23 Thermoplastic Polyolefin (TPO) Roofing 01-21 07 60 00 Flashing and Sheet Metal 01-21 07 72 00 Roof Accessories 01-21 07 84 00 Firestopping 01-21 07 92 00 Joint Sealants 10-17
DIVISION 08 - OPENINGS
08 11 13 Hollow Metal Doors and Frames 01-21 08 31 13 Access Doors and Frames 01-21 08 33 00 Coiling Doors and Grilles 01-21 08 71 00 Door Hardware 01-21 08 80 00 Glazing 01-21 08 90 00 Louvers and Vents 01-21
DIVISION 09 – FINISHES
09 05 16 Subsurface Preparation for Floor Finishes 01-21 09 06 00 Schedule for Finishes 01-21 09 22 16 Non-Structural Metal Framing 06-18 09 29 00 Gypsum Board 04-20 09 30 13 Ceramic/Porcelain Tiling 01-21 09 51 00 Acoustical Ceilings 12-18 09 65 13 Resilient Base and Accessories 01-21 09 65 19 Resilient Tile Flooring 05-18 09 91 00 Painting 01-21
DIVISION 10 – SPECIALTIES
10 14 00 Signage 01-21 10 21 16 Shower and Dressing Compartments 01-21 10 26 00 Wall and Door Protection 01-21 10 28 00 Toilet, Bath, and Laundry Accessories 01-21 10 44 13 Fire Extinguisher Cabinets 08-18
DIVISION 11 – EQUIPMENT
11 12 00 Parking Control Equipment 01-21
DIVISION 12 – FURNISHINGS
12 32 00 Manufactured Wood Casework 09-15
VA Sierra Nevada Healthcare System - Reno, NV
00 01 10-3
12 36 00 Countertops 12-18
DIVISION 13 - SPECIAL CONSTRUCTION
13 05 41 Seismic Restraint Requirements for Non-Structural Components
01-14
DIVISION 14– CONVEYING EQUIPEMENT – NOT USED
DIVISION 21- FIRE SUPPRESSION
21 13 13 Wet-Pipe Sprinkler Systems 06-15
DIVISION 22 – PLUMBING
22 05 11 Common Work Results for Plumbing 09-20 22 05 12 General Motor Requirements for Plumbing Equipment 09-20 22 05 19 Meters and Gages for Plumbing Piping 09-20 22 05 23 General-Duty Valves for Plumbing Piping 09-20 22 07 11 Plumbing Insulation 09-19 22 08 00 Commissioning of Plumbing Systems 11-16 22 11 00 Facility Water Distribution 05-21 22 13 00 Facility Sanitary and Vent Piping 09-20 22 14 00 Facility Storm Drainage 09-15 22 15 00 General Service Compressed-Air Systems 09-20 22 31 11 Water Softeners 09-15 22 34 00 Fuel-Fired Domestic Water Heaters 09-20 22 40 00 Plumbing Fixtures 09-15 22 63 00 Gas Systems for Laboratory and Healthcare Facilities 09-15
DIVISION 23 – HEATING, VENTILATING, AND AIR
CONDITIONING (HVAC)
23 05 10 Common Work Results for Boiler Plant and Steam Generation
04-20
23 05 11 Common Work Results for HVAC 02-20 23 05 12 General Motor Requirements for HVAC and Steam
Generation Equipment 02-20
23 05 41 Noise and Vibration Control for HVAC Piping and Equipment
02-20
23 05 51 Noise and Vibration Control for Boiler Plant 04-20 23 05 93 Testing, Adjusting, and Balancing for HVAC 02-20 23 07 11 HVAC and Boiler Plant Insulation 02-20 23 08 00 Commissioning of HVAC Systems 02-20 23 08 11 Demonstrations and Tests for Boiler Plant 04-20 23 09 11 Instrumentation and Control for Boiler Plant 08-21 23 09 23 Direct-Digital Control System for HVAC 09-11 23 10 00 Facility Fuel Systems 04-20 23 11 23 Facility Natural-Gas Piping 04-20 23 21 11 Boiler Plant Piping Systems 09-21
VA Sierra Nevada Healthcare System - Reno, NV
00 01 10-4
23 21 13 Hydronic Piping 02-20 23 21 23 Hydronic Pumps 02-20 23 22 13 Steam and Condensate Heating Piping 02-20 23 22 23 Steam Condensate Pumps 04-20 23 23 00 Refrigerant Piping 02-20 23 25 00 HVAC Water Treatment 02-20 23 31 00 HVAC Ducts and Casings 02-20 23 34 00 HVAC Fans 02-20 23 37 00 Air Outlets and Inlets 02-20 23 50 11 Boiler Plant Mechanical Equipment 11-17 23 51 00 Breechings, Chimneys, and Stacks 04-20 23 52 39 Fire-Tube Boilers 04-20 23 64 00 Packaged Water Chillers 03-20 23 65 00 Cooling Towers 03-20 23 74 13 Packaged, Outdoor, Central-Station Air-Handling Units 03-20 23 81 00 Decentralized Unitary HVAC Equipment 03-20 23 81 00 Decentralized Unitary HVAC Equipment 03-20 23 82 16 Air Coils 03-20
DIVISION 25 – INTEGRATED AUTOMATION – NOT USED
DIVISION 26 – ELECTRICAL
26 05 11 Requirements for Electrical Installations 01-16 26 05 13 Medium-Voltage Cables 01-17 26 05 19 Low-Voltage Electrical Power Conductors and Cables 01-17 26 05 26 Grounding and Bonding for Electrical Systems 01-17 26 05 33 Raceway and Boxes for Electrical Systems 01-18 26 05 41 Underground Electrical Construction 01-17 26 05 73 Overcurrent Protective Device Coordination Study 01-18 26 08 00 Commissioning of Electrical Systems 11-16 26 09 23 Lighting Controls 01-18 26 12 19 Pad-Mounted, Liquid-Filled, Medium-Voltage Transformers 01-18 26 13 13 Medium-Voltage Circuit Breaker Switchgear 01-17 26 13 16 Medium-Voltage Fusible Interrupter Switches 01-17 26 22 00 Low-Voltage Transformers 01-18 26 23 00 Low-Voltage Switchgear 01-17 26 23 13 Generator Paralleling Controls 01-17 26 24 13 Distribution Switchboards 01-18 26 24 16 Panelboards 01-18 26 24 19 Motor Control Centers 01-18 26 26 00 Power Distribution Units for Static Uninterruptible
Power Systems 01-18
26 27 26 Wiring Devices 01-18 26 29 11 Motor Controllers 01-18 26 29 21 Enclosed Switches and Circuit Breakers 01-17 26 32 13 Engine Generators 01-18 26 33 53 Static Uninterruptible Power Supply 01-17 26 35 26 Harmonic Filters 01-18
VA Sierra Nevada Healthcare System - Reno, NV
00 01 10-5
26 36 23 Automatic Transfer Switches 01-17 26 41 00 Facility Lightning Protection 01-17 26 43 13 Surge Protective Devices 01-17 26 51 00 Interior Lighting 01-18 26 56 00 Exterior Lighting 01-18
DIVISION 27 – COMMUNICATIONS
27 05 11 Requirements for Communications Installations 09-19 27 05 26 Grounding and Bonding for Communications Systems 06-15 27 05 33 Raceways and Boxes for Communications Systems 10-18 27 11 00 Communications Equipment Room Fittings 06-15 27 15 00 Communications Structured Cabling 01-16 27 32 41 Two-Way Radio Equipment and Systems 10-18 27 51 16 Public Address and Mass Notification Systems 10-18 27 51 23 Intercommunications and Program Systems 06-15
DIVISION 28 – ELECTRONIC SAFETY AND SECURITY
28 05 00 Common Work Results for Electronic Safety and Security 04-18 28 05 13 Conductors and Cables for Electronic Safety and
Security 10-18
28 05 26 Grounding and Bonding for Electronic Safety and Security
09-11
28 08 00 Commissioning of Electronic Safety and Security Systems 11-16 28 13 00 Physical Access Control System 10-11 28 13 16 Physical Access Control System and Database Management 09-11 28 16 00 Intrusion Detection System 10-11 28 23 00 Video Surveillance 09-11 28 31 00 Fire Detection and Alarm 10-11
DIVISION 31 – EARTHWORK
31 20 00 Earthwork 07-16
DIVISION 32 – EXTERIOR IMPROVEMENTS
32 05 23 Cement and Concrete for Exterior Improvements 08-16 32 12 16 Asphalt Paving 09-15 32 17 23 Pavement Markings 08-16 32 31 13 Chain Link Fences and Gates 06-18 32 31 40 High Security Fences and Gates 08-16 32 84 00 Planting Irrigation 08-16 32 90 00 Planting 08-16
DIVISION 33 – UTILITIES
33 08 00 Commissioning of Site Utility Systems 11-16 33 10 00 Water Utilities 03-17 33 30 00 Sanitary Sewer Utilities 06-13
VA Sierra Nevada Healthcare System - Reno, NV
00 01 10-6
33 40 00 Storm Sewer Utilities 12-17 33 51 00 Natural-Gas Distribution 10-11 33 63 00 Steam Energy Distribution 09-17
DIVISION 34 – TRANSPORTATION – INCLUDED
DIVISION 48 – Electrical Power Generation – NOT USED
Central Utility Plant
VA 654-212 (1791.06)
VA Sierra Nevada Healthcare System - Reno, NV Level 1 SD2 RFP
11-01-22
26 24 16 - 1
PANELBOARDS
SECTION 26 24 16
PART 1 - GENERAL
1.1 DESCRIPTION
A. This section specifies the furnishing, installation, and connection of panelboards.
1.2 RELATED WORK
A. Section 09 91 00, PAINTING: Painting of panelboards.
B. Section 13 05 41, SEISMIC RESTRAINT REQUIREMENTS FOR NON-STRUCTURAL
COMPONENTS: Requirements for seismic restraint of non-structural components.
C. Section 25 10 10, ADVANCED UTILITY METERING: Requirements for electrical metering.
D. Section 26 05 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS:
Requirements that apply to all sections of Division 26.
E. Section 26 05 19, LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES:
Low-voltage conductors.
F. Section 26 05 26, GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS:
Requirements for personnel safety and to provide a low impedance path for possible ground fault currents.
G. Section 26 05 33, RACEWAY AND BOXES FOR ELECTRICAL SYSTEMS: Conduits.
H. Section 26 05 73, OVERCURRENT PROTECTIVE DEVICE COORDINATION STUDY:
Short circuit and coordination study, and requirements for a coordinated electrical system.
I. Section 26 09 23, LIGHTING CONTROLS: Lighting controls integral to panelboards.
J. Section 26 43 13, SURGE PROTECTIVE DEVICES: Surge protective devices integral to panelboards.
1.3 QUALITY ASSURANCE
A. Quality Assurance shall be in accordance with Paragraph, QUALIFICATIONS
(PRODUCTS AND SERVICES) in Section 26 05 11, REQUIREMENTS FOR
ELECTRICAL INSTALLATIONS.
1.4 SUBMITTALS
A. Submit in accordance with Paragraph, SUBMITTALS in Section 26 05 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS, and the following requirements:
1. Shop Drawings:
VA Sierra Nevada Healthcare System - Reno, NV Level 1 SD2 RFP
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a. Submit sufficient information to demonstrate compliance with drawings and specifications.
b. Include electrical ratings, dimensions, mounting details, materials, required clearances, terminations, weight, circuit breakers, wiring and connection diagrams, accessories, and nameplate data.
c. Certification from the manufacturer that a representative panelboard has been seismically tested to International Building
Code requirements. Certification shall be based upon simulated seismic forces on a shake table or by analytical methods, but not by experience data or other methods.
2. Manuals:
a. Submit, simultaneously with the shop drawings, complete maintenance and operating manuals including technical data sheets, wiring diagrams, and information for ordering circuit breakers and replacement parts.
1) Include schematic diagrams, with all terminals identified, matching terminal identification in the panelboards.
2) Include information for testing, repair, troubleshooting, assembly, and disassembly.
b. If changes have been made to the maintenance and operating manuals originally submitted, submit updated maintenance and operating manuals two weeks prior to the final inspection.
3. Certifications: Two weeks prior to final inspection, submit the following.
a. Certification by the manufacturer that the panelboards conform to the requirements of the drawings and specifications.
b. Certification by the Contractor that the panelboards have been properly installed, adjusted, and tested.
1.5 APPLICABLE PUBLICATIONS
A. Publications listed below (including amendments, addenda, revisions, supplements, and errata) form a part of this specification to the extent referenced. Publications are referenced in the text by designation only.
B. International Code Council (ICC):
IBC-21..................International Building Code
C. National Electrical Manufacturers Association (NEMA):
VA Sierra Nevada Healthcare System - Reno, NV Level 1 SD2 RFP
11-01-22
26 24 16 - 3
PB 1-11 .................Panelboards
250-20..................Enclosures for Electrical Equipment (1,000V
Maximum)
D. National Fire Protection Association (NFPA):
70-23...................National Electrical Code (NEC)
70E-21..................Standard for Electrical Safety in the Workplace
E. Underwriters Laboratories, Inc. (UL):
50-15...................Enclosures for Electrical Equipment
67-09 ...................Panelboards
489-16..................Molded Case Circuit Breakers and Circuit
Breaker Enclosures
PART 2 - PRODUCTS
2.1 GENERAL REQUIREMENTS
A. Panelboards shall be in accordance with NEC, NEMA, UL, as specified, and as shown on the drawings.
B. Panelboards shall have main breaker or main lugs, bus size, voltage, phases, number of circuit breaker mounting spaces, top or bottom feed, flush or surface mounting, branch circuit breakers, and accessories as shown on the drawings.
C. Panelboards shall be completely factory-assembled with molded case circuit breakers and integral accessories as shown on the drawings or specified herein.
D. Non-reduced size copper bus bars, rigidly supported on molded insulators, and fabricated for bolt-on type circuit breakers.
E. Bus bar connections to the branch circuit breakers shall be the
“distributed phase” or “phase sequence” type.
F. Mechanical lugs furnished with panelboards shall be cast, stamped, or machined metal alloys listed for use with the conductors to which they will be connected.
G. Neutral bus shall be 100% rated, mounted on insulated supports.
H. Grounding bus bar shall be equipped with screws or lugs for the connection of equipment grounding conductors.
I. Bus bars shall be braced for the available short-circuit current as shown on the drawings, but not be less than 10,000 A symmetrical for
120/208 V and 120/240 V panelboards, and 14,000 A symmetrical for
277/480 V panelboards.
VA Sierra Nevada Healthcare System - Reno, NV Level 1 SD2 RFP
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J. In two-section panelboards, the main bus in each section shall be full size. The first section shall be furnished with subfeed lugs on the line side of main lugs only, or through-feed lugs for main breaker type panelboards, and have field-installed cable connections to the second section as shown on the drawings. Panelboard sections with tapped bus or crossover bus are not acceptable.
K. Series-rated panelboards are not permitted.
2.2 ENCLOSURES AND TRIMS
A. Enclosures:
1. Provide galvanized steel enclosures, with NEMA rating as shown on the drawings or as required for the environmental conditions in which installed.
2. Enclosures shall not have ventilating openings.
3. Enclosures may be of one-piece formed steel or of formed sheet steel with end and side panels welded, riveted, or bolted as required.
4. Provide manufacturer’s standard option for prepunched knockouts on top and bottom endwalls.
5. Include removable inner dead front cover, independent of the panelboard cover.
B. Trims:
1. Hinged “door-in-door” type.
2. Interior hinged door with hand-operated latch or latches, as required to provide access only to circuit breaker operating handles, not to energized parts.
3. Outer hinged door shall be securely mounted to the panelboard enclosure with factory bolts, screws, clips, or other fasteners, requiring a key or tool for entry. Hand-operated latches are not acceptable.
4. Inner and outer doors shall open left to right.
5. Trims shall be flush or surface type as shown on the drawings.
2.3 MOLDED CASE CIRCUIT BREAKERS
A. Circuit breakers shall be per UL, NEC, as shown on the drawings, and as specified.
B. Circuit breakers shall be bolt-on type.
C. Circuit breakers shall have minimum interrupting rating as required to withstand the available fault current, but not less than:
1. 120/208 V Panelboard: 10,000 A symmetrical.
VA Sierra Nevada Healthcare System - Reno, NV Level 1 SD2 RFP
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2. 120/240 V Panelboard: 10,000 A symmetrical.
3. 277/480 V Panelboard: 14,000 A symmetrical.
D. Circuit breakers shall have automatic, trip free, non-adjustable, inverse time, and instantaneous magnetic trips for less than 400 A frame. Circuit breakers with 400 A frames and above shall have magnetic trip, adjustable from 5x to 10x. Breaker trip setting shall be set in the field, based on the approved protective device study as specified in Section 26 05 71, ELECTRICAL SYSTEM PROTECTIVE DEVICE STUDY
E. Circuit breaker features shall be as follows:
1. A rugged, integral housing of molded insulating material.
2. Silver alloy contacts.
3. Arc quenchers and phase barriers for each pole.
4. Quick-make, quick-break, operating mechanisms.
5. A trip element for each pole, thermal magnetic type with long time delay and instantaneous characteristics, a common trip bar for all poles and a single operator.
6. Electrically and mechanically trip free.
7. An operating handle which indicates closed, tripped, and open positions.
8. An overload on one pole of a multi-pole breaker shall automatically cause all the poles of the breaker to open.
9. Ground fault current interrupting breakers, shunt trip breakers, lighting control breakers (including accessories to switch line currents), or other accessory devices or functions shall be provided where shown on the drawings.
2.4 SURGE PROTECTIVE DEVICES
A. Where shown on the drawings, furnish panelboards with integral surge protective devices. Refer to Section 26 43 13, SURGE PROTECTIVE
DEVICES.
PART 3 - EXECUTION
3.1 INSTALLATION
A. Installation shall be in accordance with the manufacturer’s instructions, the NEC, as shown on the drawings, and as specified.
B. Locate panelboards so that the present and future conduits can be conveniently connected.
VA Sierra Nevada Healthcare System - Reno, NV Level 1 SD2 RFP
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C. In seismic areas, panelboards shall be adequately anchored and braced per details on structural contract drawings to withstand the seismic forces at the location where installed.
D. Install a printed schedule of circuits in each panelboard after approval by the COR. Schedules shall reflect final load descriptions, room numbers, and room names connected to each circuit breaker.
Schedules shall be printed on the panelboard directory cards and be installed in the appropriate panelboards.
E. Mount panelboards such that the maximum height of the top circuit breaker above the finished floor shall not exceed 1980 mm (78 inches).
F. Provide blank cover for each unused circuit breaker mounting space.
G. Panelboard enclosures shall not be used for conductors feeding through, spliced, or tapping off to other enclosures or devices.
3.2 ACCEPTANCE CHECKS AND TESTS
A. Perform in accordance with the manufacturer's recommendations. In addition, include the following:
1. Visual Inspection and Tests:
a. Compare equipment nameplate data with specifications and approved shop drawings.
b. Inspect physical, electrical, and mechanical condition.
c. Verify appropriate anchorage and required area clearances.
d. Verify that circuit breaker sizes and types correspond to approved shop drawings.
e. To verify tightness of accessible bolted electrical connections, use the calibrated torque-wrench method or perform thermographic survey after energization.
f. Vacuum-clean enclosure interior. Clean enclosure exterior.
3.3 FOLLOW-UP VERIFICATION
A. Upon completion of acceptance checks, settings, and tests, the
Contractor shall demonstrate that the panelboards are in good operating condition and properly performing the intended function.
---END---
VA Sierra Nevada Healthcare System - Reno, NV Level 1 SD2 RFP
11-01-22
26 24 19 - 1
MOTOR CONTROL CENTERS
SECTION 26 24 19
A. This section specifies the furnishing, installation, connection, and testing of the motor control centers.
1.2 RELATED WORK
A. Section 03 30 00, CAST-IN-PLACE CONCRETE: Requirements for concrete equipment pads.
B. Section 13 05 41, SEISMIC RESTRAINT REQUIREMENTS FOR NON-STRUCTURAL
COMPONENTS: Requirement for seismic restraint for nonstructural components.
C. Section 25 10 10, ADVANCED UTILITY METERING: Electricity meters installed in motor control centers.
D. Section 26 05 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS:
Requirements that apply to all sections of Division 26.
E. Section 26 05 19, LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES:
Low-voltage conductors.
F. Section 26 05 26, GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS:
Requirements for personnel safety and to provide a low impedance path for possible ground fault currents.
G. Section 26 05 73, OVERCURRENT PROTECTIVE DEVICE COORDINATION STUDY.
Short circuit and coordination study, and requirements for a coordinated electrical system.
H. Section 26 29 11, MOTOR CONTROLLERS: Control and protection of motors.
1.3 QUALITY ASSURANCE
A. Quality Assurance shall be in accordance with Paragraph, QUALIFICATIONS
(PRODUCTS AND SERVICES) in Section 26 05 11, REQUIREMENTS FOR
ELECTRICAL INSTALLATIONS.
1.4 SUBMITTALS
A. Submit in accordance with Paragraph, SUBMITTALS in Section 26 05 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS, and the following requirements:
1. Shop Drawings:
VA Sierra Nevada Healthcare System - Reno, NV Level 1 SD2 RFP
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b. Prior to fabrication of motor control centers, submit the following data for approval:
1) Single line diagram showing each bus, instrument and control power transformer, relay, motor starter, circuit breaker, fuse, motor circuit protector, overload, and other components.
2) Control wiring diagram for each motor starter.
3) Complete electrical ratings for all components.
4) Interrupting ratings.
5) Safety features.
6) Accessories and nameplate data.
7) Dimensioned exterior views of the motor control centers.
8) Dimensioned section views of the motor control centers.
9) Floor plan of the motor control centers.
10) Approximate design weights.
c. Certification from the manufacturer that a representative motor control center has been seismically tested to International
Building Code requirements. Certification shall be based upon simulated seismic forces on a shake table or by analytical methods, but not by experience data or other methods.
2. Manuals:
a. Submit, simultaneously with the shop drawings, companion copies of complete maintenance and operating manuals, including technical data sheets, wiring diagrams, and information for ordering replacement parts.
1) Schematic control diagrams, with all terminals identified, matching terminal identification in the motor control centers.
2) Include information for testing, repair, troubleshooting, assembly, disassembly, and factory recommended periodic maintenance procedures and their frequency.
3) Provide a replacement and spare parts list. Include a list of tools, and instruments for testing and maintenance purposes.
b. If changes have been made to the maintenance and operating manuals originally submitted, submit updated maintenance and operating manuals two weeks prior to the final inspection.
3. Test Reports:
a. Two weeks prior to the final inspection, submit certified field test reports and data sheets to the COTR.
VA Sierra Nevada Healthcare System - Reno, NV Level 1 SD2 RFP
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4. Certifications: Two weeks prior to final inspection, submit the following.
a. Certification by the manufacturer that the motor control centers conform to the requirements of the drawings and specifications.
b. Certification by the Contractor that the motor control centers have been properly installed, adjusted, and tested.
1.5 APPLICABLE PUBLICATIONS
A. Publications listed below (including amendments, addenda, revisions, supplements, and errata) form a part of this specification to the extent referenced. Publications are referenced in the text by designation only.
B. International Code Council (ICC):
IBC-21..................International Building Code
C. National Electrical Manufacturers Association (NEMA):
ICS 1-15................Industrial Control and Systems: General
Requirements
ICS 2-20................Industrial Control and Systems: Controllers, Contactors and Overhead Relays Rated 600 volts
ICS 6-16................Industrial Control and Systems: Enclosures
FU 1-12.................Low-Voltage Cartridge Fuses
250-20..................Enclosures for Electrical Equipment (1000 Volts
Maximum)
D. National Fire Protection Association (NFPA):
70-23...................National Electrical Code (NEC)
E. Underwriters Laboratories, Inc. (UL):
845-21..................Motor Control Centers
PART 2 - PRODUCTS
2.1 GENERAL REQUIREMENTS
A. Motor control centers shall comply with NFPA, NEMA, UL, and as shown on drawings.
B. Motor control centers shall be complete, free-standing, floor-mounted, dead-front, and metal-enclosed.
C. Ratings shall be not less than shown on drawings. Interrupting ratings shall be not less than the maximum short circuit currents available at the motor control center location, as shown on drawings or as calculated as specified in Section 26 05 73, OVERCURRENT PROTECTIVE
DEVICE COORDINATION STUDY.
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D. Enclosure shall be NEMA-type rated 1, 3R, or 12 as indicated on drawings or as required per the installed environment.
E. Motor control centers shall conform to the arrangements and details of drawings and to the spaces designated for installation.
F. Wiring: The motor control centers shall be NEMA Standard, Class 1, Type
B.
G. Finish:
1. All metal surfaces shall be thoroughly cleaned, phosphatized and factory primed prior to applying baked enamel or lacquer finish.
2. Provide a light gray finish for indoor motor control centers.
3. Outdoor motor control centers:
a. Finish shall be light gray.
b. The underside of the motor control centers shall be treated with corrosion resistant compounds, epoxy resin, or rubberized sealing compound.
H. All steel parts shall be factory-phosphatized, painted with primer, and baked enamel or lacquer finishes, except for ground connections. I.
Vertical Sections:
1. Approximately 2-1/4 M (90 inches) high.
2. Shall be designed to permit connection of future additional vertical sections, and installation of future motor controller units in available space in each vertical section.
3. Spaces within the vertical sections shall be suitable and adequately sized for motor controller units and accessories as indicated on drawings.
4. End panels shall be removable to facilitate future additions.
5. All vertical section parts shall be accessible from the front for maintenance rearrangement.
6. Screws in the removable panels shall remain in the panels when the panels are removed. Self-aligning, self-retaining nuts, which are parts of the screw assembly, shall remain intact.
7. Each vertical section shall have a minimum 300 mm (12 inches) high horizontal wireway at the top, section and a minimum 150 mm (6 inches) high horizontal wireway at the bottom.
8. Each vertical section shall have minimum 100 mm (4 inches) wide vertical full height wireways. Vertical wireways shall connect with both the top and bottom horizontal wireways.
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9. Each vertical section for motor controller units shall be equipped with all necessary hardware and busing for the units to be added or relocated. All unused space shall be covered by hinged doors and equipped to accept future units.
2.2 BUS BARS AND INTERCONNECTIONS
A. Horizontal and vertical bus ratings shall be as shown on drawings.
Horizontal bus bars shall be fully rated for the entire length of the motor control centers.
B. Bus bars shall be tin-plated copper.
C. All bolts, nuts, and washers shall be zinc-plated steel, torqued to the values recommended by the manufacturer.
D. A ground bus shall extend across the entire length of the motor control centers.
E. Bus bars and interconnections shall include provisions to extend the motor control center horizontal bus into additional future vertical sections.
F. Provide shutter mechanism to isolate vertical bus when the motor controller unit is withdrawn.
2.3 MOTOR CONTROLLERS
A. Product of the same manufacturer as the motor control centers.
B. Shall conform to the applicable requirements in Section 26 29 11, MOTOR
CONTROLLERS.
C. Plug-in, draw-out type up through NEMA size 4. NEMA size 5 and above require bolted connections.
D. Doors for each space shall be interlocked to prevent their opening unless disconnect is open. A "defeater" mechanism shall be incorporated for inspection by qualified personnel.
2.4 FEEDER UNITS
A. Circuit breaker: shall conform to the applicable portions of Section 26
24 16, PANELBOARDS.
B. Fusible Switches: shall conform to the applicable portions of Section
26 29 21, ENCLOSED SWITCHES AND CIRCUIT BREAKERS.
2.5 METERS
A. Meters shall be provided as shown on the plans. Meters shall be in accordance with Section 25 10 10, ADVANCED UTILITY METERING.
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PART 3 - EXECUTION
3.1 INSTALLATION
A. Install motor control centers in accordance with the NEC, as shown on the drawings, and as recommended by the manufacturer.
B. Anchor motor control centers with rustproof bolts, nuts, and washers not less than 13 mm (1/2 inch) diameter, in accordance with manufacturer’s instructions, and as shown on drawings.
C. In seismic areas, motor control centers shall be adequately anchored and braced per details on structural contract drawings to withstand the seismic forces at the location where installed.
D. Interior Location. Mount motor control centers on concrete slab.
Unless otherwise indicated, the slab shall be at least 100 mm (4 inches) thick. The top of the concrete slab shall be approximately 100 mm (4 inches) above finished floor. Edges above floor shall have 15 mm
(1/2 inch) chamfer. The slab shall be of adequate size to project at least 100 mm (8 inches) beyond the equipment. Provide conduit turnups and cable entrance space required by the equipment to be mounted. Seal voids around conduit openings in slab with water- and oil-resistant caulking or sealant. Cut off and bush conduits 75 mm (3 inches) above slab surface. Concrete work shall be as specified in Section 03 30 00, CAST-IN-PLACE CONCRETE.
3.2 ACCEPTANCE CHECKS AND TESTS
A. Perform in accordance with the manufacturer's recommendations. In addition, include the following:
1. Visual Inspection and Tests:
a. Compare equipment nameplate data with specifications and approved shop drawings.
b. Inspect physical, electrical, and mechanical condition.
c. Verify appropriate anchorage and required area clearances.
d. Verify that circuit breaker, fuse, motor circuit protector, and motor controller sizes and types correspond to approved shop drawings.
e. Use calibrated torque-wrench method to verify the tightness of accessible bolted electrical connections, or perform a thermographic survey after energization.
f. Vacuum-clean motor control center enclosure interior. Clean motor control center enclosure exterior.
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g. Inspect insulators for evidence of physical damage or contaminated surfaces.
h. Exercise all active components.
i. Verify the correct operation of all indicating devices.
j. If applicable, inspect control power transformers.
2. Electrical Tests:
a. Perform insulation-resistance tests on each bus section.
b. Perform insulation-resistance test on control wiring. Do not perform this test on wiring connected to electronic components.
3.3 FOLLOW-UP VERIFICATION
A. Upon completion of acceptance checks, settings, and tests, the
Contractor shall demonstrate that the motor control centers are in good operating condition and properly performing the intended function.
3.4 TRAINING
A. Furnish the services of a competent, factory-trained engineer or technician for a 2-hour period to instruct VA personnel in operation and maintenance of the equipment, including review of the operation and maintenance manual, on a date requested by the COTR.
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POWER DISTRIBUTION UNITS FOR STATIC UNINTERRUPTIBLE POWER SYSTEMS
SECTION 26 26 00
A. This section specifies the furnishing, installation, connection, and testing of power distribution units for transforming and distributing electrical power from a static uninterruptible power supply (UPS).
1.2 RELATED WORK
A. Section 13 05 41, SEISMIC RESTRAINT REQUIREMENTS FOR NON-STRUCTURAL
COMPONENTS: Requirements for seismic restraint for nonstructural components.
B. Section 26 05 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS:
Requirements that apply to all sections of Division 26.
C. Section 26 05 19, LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES:
Low-voltage conductors.
D. Section 26 05 26, GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS:
Requirements for personnel safety and to provide a low impedance path for possible fault currents.
E. Section 26 05 33, RACEWAY AND BOXES FOR ELECTRICAL SYSTEMS: Conduits.
F. Section 26 33 53, STATIC UNINTERRUPTIBLE POWER SUPPLY: Power source for power distribution units.
1.3 QUALITY ASSURANCE
A. Quality Assurance shall be in accordance with Paragraph, QUALIFICATIONS
(PRODUCTS AND SERVICES) in Section 26 05 11, REQUIREMENTS FOR
ELECTRICAL INSTALLATIONS.
1.4 FACTORY TESTS
A. Factory Tests shall be required.
B. Factory Tests shall be in accordance with Paragraph, MANUFACTURED
PRODUCTS in Section 26 05 11, REQUIREMENTS FOR ELECTRICAL
INSTALLATIONS, and in accordance with UL and ANSI.
1.5 SUBMITTALS
A. Submit in accordance with Paragraph, SUBMITTALS in Section 26 05 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS, and the following requirements:
1. Shop Drawings:
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b. Include electrical ratings, dimensions, mounting details, materials, required clearances, terminations, weight, temperature rise, wiring and connection diagrams, plan, front, side, and rear elevations, accessories, and device nameplate data.
c. Certification from the manufacturer that representative power distribution units have been seismically tested to International
Building Code requirements. Certification shall be based upon simulated seismic forces on a shake table or by analytical methods, but not by experience data or other methods.
2. Manuals:
a. Submit, simultaneously with the shop drawings, companion copies of complete maintenance and operating manuals including technical data sheets, wiring diagrams, and information for ordering replacement parts.
1) Schematic signal and control diagrams, with all terminals identified, matching terminal identification in the power distribution units.
2) Include information for testing, repair, troubleshooting, assembly, disassembly, and factory recommended/required periodic maintenance procedures and frequency.
b. If changes have been made to the maintenance and operating manuals originally submitted, submit updated maintenance and operating manuals two weeks prior to the final inspection.
3. Certifications: Two weeks prior to final inspection, submit the following.
a. Certification by the manufacturer that the power distribution units conform to the requirements of the drawings and specifications.
b. Certification by the Contractor that the power distribution units have been properly installed, adjusted, and tested.
1.6 APPLICABLE PUBLICATIONS
A. Publications listed below (including amendments, addenda, revisions, supplements and errata) form a part of this specification to the extent referenced. Publications are referenced in the text by designation only.
B. International Code Council (ICC):
IBC-21..................International Building Code
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C. National Fire Protection Association (NFPA):
70-23...................National Electrical Code (NEC)
D. National Electrical Manufacturers Association (NEMA):
PB 1-11.................Panelboards
250-20..................Enclosures for Electrical Equipment (1,000V
Maximum)
E. Underwriters Laboratories, Inc. (UL):
50-15...................Enclosures for Electrical Equipment
67-18 ...................Panelboards
489-16..................Molded Case Circuit Breakers and Circuit
Breaker Enclosures
1561-11.................Dry-Type General Purpose and Power Transformers
PART 2 - PRODUCTS
2.1 GENERAL
A. Provide the following components:
1. Input circuit breaker.
2. Isolation transformer.
3. Surge Protective Devices (SPD).
4. Output panelboard(s).
5. Alarm, monitoring, and control system.
B. Power distribution unit ratings, including transformer kVA, primary and secondary voltage, and primary and secondary circuit breaker amperage shall be as shown on the drawings.
2.2 INPUT CIRCUIT BREAKER
A. 3-pole, shunt-tripped, circuit breaker, rated for indicated interrupting capacity and 125 percent of input current.
1. Dual-input power distribution units:
a. Two input circuit breakers arranged to provide transfer between two input sources.
b. Controls and interfaces to allow both open- and closed-transition transfer between two input sources.
2.4 SURGE PROTECTIVE DEVICE (SPD)
A. Integrated SPD system shall be in accordance with Section 26 43 13, SURGE PROTECTIVE DEVICES.
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2.5 OUTPUT PANELBOARD(S)
A. Quantity of panelboards shall be as shown on drawings. Mount panelboards behind flush doors. Include the following features for each panelboard:
1. Construction: 42 pole, 208/120 V, 3 phase, 4 wire; capable of accepting branch circuit breakers rated to 100 A.
2. Bus Rating: 225 A, with main circuit breaker.
3. Phase, Neutral and Ground Buses: Copper, with 200% neutral bus.
4. Branch Circuit Breakers: Bolt on.
5. Cable Racks: Removable and arranged for supporting and routing cables for panelboard entrance.
6. Access Panels: Arranged so additional branch-circuit wiring can be installed and connected in the future.
2.6 POWER DISTRIBUTION UNIT CONTROLS
A. Include the following control features:
1. Emergency power-off (EPO) switch integral with power distribution unit.
2. Emergency power-off (EPO) input terminals for connection to remote
EPO switches.
3. Sensors, alarms, and automatic unit shutdown for the following conditions:
a. High temperature.
b. High and low input or output voltage.
c. Phase loss.
d. Ground fault.
e. Reverse phase rotation.
4. Alarm Contacts: Electrically isolated, Form C (one normally open and one normally closed), summary alarm; contact set shall change state if any monitored function goes into alarm mode.
5. Auxiliary Control Outputs: As shown on drawings.
2.7 MONITORING, STATUS, AND ALARM ANNUNCIATION
A. Electronic monitoring, status, and alarm annunciation panel mounted flush in front of power distribution unit to provide status display and failure-indicating interface for the following:
1. Power Monitoring:
a. kWh.
b. kW, phase A, B, C, total.
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c. kW demand.
d. kVAR, phase A, B, C, total.
e. kVA, phase A, B, C, total.
f. kVA demand.
g. Power factor.
h. Voltage, L-L, average of three phases, phases A-B, B-C, A-C.
i. Voltage, L-N, average of three phases, phases A-N, B-N, A-N.
j. Current, average of three phases, phases A, B, C.
k. Frequency.
2. Status Indication: Unit on.
3. Alarm Annunciation:
a. High temperature.
b. High and low input voltage.
c. High and low output voltage.
d. Phase loss.
e. Ground fault.
f. Frequency.
g. Phase rotation.
h. TVSS module failure.
4. Audible Alarm and Silencing Switch: Alarm sounds when alarm indication occurs. Silencing switch shall silence audible alarm but leave visual indication active until failure or other alarm conditions are corrected.
2.8 FINISHES
A. Manufacturer's standard finish over corrosion-resistant pretreatment and primer.
PART 3 - EXECUTION
3.1 INSTALLATION
A. Coordinate installation of power distribution units with access flooring for proper support and seismic restraint.
B. Anchor or restrain floor-mounting power distribution units according to manufacturer's written instructions.
C. In seismic areas, equipment shall be adequately anchored and braced per details on structural contract drawings to withstand the seismic forces at the location where installed.
D. Arrange power distribution units to provide adequate access to equipment and circulation of cooling air.
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3.2 ACCEPTANCE CHECKS AND TESTS
A. An authorized representative of the power distribution unit manufacturer shall technically supervise and participate during all of the field adjustments and tests. Field tests shall be witnessed by the
COTR. The manufacturer’s representative shall certify in writing that the equipment has been installed, adjusted, and tested in accordance with the manufacturer’s recommendations.
B. Perform manufacturer’s required field tests in accordance with the manufacturer's recommendations. In addition, include the following:
1. Visual Inspection and Tests:
a. Compare equipment nameplate data with specifications and approved shop drawings.
b. Inspect physical, electrical, and mechanical condition.
c. Verify appropriate anchorage, required area clearances, and correct alignment.
d. Verify tightness of accessible bolted electrical connections by calibrated torque-wrench method, or performing thermographic survey after energization.
e. Verify grounding connections.
f. Vacuum-clean enclosure interior. Clean enclosure exterior.
g. Exercise all active components.
h. Verify the correct operation of all alarms and indicating devices.
i. Attach a phase rotation meter to the power distribution unit input and output, and observe proper phase sequences.
3.3 FOLLOW-UP VERIFICATION
A. After completion of acceptance checks and tests, the Contractor shall show by demonstration in service that the power distribution units are in good operating condition and properly performing the intended function.
3.4 INSTRUCTION
A. Provide the services of a factory-trained technician for one 2-hour training period for instructing personnel in the maintenance and operation of the power distribution units, on the date requested by the
COTR.
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SECTION 26 27 26
WIRING DEVICES
A. This section specifies the furnishing, installation, connection, and testing of wiring devices.
1.2 RELATED WORK
A. Section 26 05 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS: General electrical requirements that are common to more than one section of
Division 26.
B. Section 26 05 19, LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES:
Cables and wiring.
C. Section 26 05 26, GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS:
Requirements for personnel safety and to provide a low impedance path to ground for possible ground fault currents.
D. Section 26 05 33, RACEWAY AND BOXES FOR ELECTRICAL SYSTEMS: Conduit and boxes.
E. Section 26 51 00, INTERIOR LIGHTING: Fluorescent ballasts and LED drivers for use with manual dimming controls.
1.3 QUALITY ASSURANCE
A. Quality Assurance shall be in accordance with Paragraph, QUALIFICATIONS
(PRODUCTS AND SERVICES) in Section 26 05 11, REQUIREMENTS FOR
ELECTRICAL INSTALLATIONS.
1.4 SUBMITTALS
A. Submit in accordance with Paragraph, SUBMITTALS in Section 26 05 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS, and the following requirements:
1. Shop Drawings:
a. Submit sufficient information to demonstrate compliance with drawings and specifications.
b. Include electrical ratings, dimensions, mounting details, construction materials, grade, and termination information.
2. Manuals:
a. Submit, simultaneously with the shop drawings, companion copies of complete maintenance and operating manuals, including
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b. If changes have been made to the maintenance and operating manuals originally submitted, submit updated maintenance and operating manuals two weeks prior to the final inspection.
3. Certifications: Two weeks prior to final inspection, submit the following.
a. Certification by the manufacturer that the wiring devices conform to the requirements of the drawings and specifications.
b. Certification by the Contractor that the wiring devices have been properly installed and adjusted.
1.5 APPLICABLE PUBLICATIONS
A. Publications listed below (including amendments, addenda, revisions, supplements and errata) form a part of this specification to the extent referenced. Publications are referenced in the text by basic designation only.
B. National Electrical Manufacturers Association (NEMA):
WD 1-99(R2020)..........General Color Requirements for Wiring Devices
WD 6-16 ................Wiring Devices – Dimensional Specifications
C. National Fire Protection Association (NFPA):
70-23...................National Electrical Code (NEC)
99-21...................Health Care Facilities
D. Underwriter’s Laboratories, Inc. (UL):
5-16....................Surface Metal Raceways and Fittings
20-18...................General-Use Snap Switches
231-16..................Power Outlets
467-13..................Grounding and Bonding Equipment
498-17..................Attachment Plugs and Receptacles
943-16..................Ground-Fault Circuit-Interrupters
1449-21.................Surge Protective Devices
1472-15.................Solid State Dimming Controls
PART 2 - PRODUCTS
2.1 RECEPTACLES
A. General: All receptacles shall comply with NEMA, NFPA, UL, and as shown on the drawings.
1. Mounting straps shall be nickel plated brass, brass, nickel plated steel or galvanize steel with break-off plaster ears, and shall
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2. Receptacles shall have provisions for back wiring with separate metal clamp type terminals (four minimum) and side wiring from four captively held binding screws.
B. Duplex Receptacles - Hospital-grade: shall be listed for hospital grade, single phase, 20 ampere, 120 volts, 2-pole, 3-wire, NEMA 5-20R, with break-off feature for two-circuit operation.
1. Bodies shall be ivory in color.
2. Switched duplex receptacles shall be wired so that only the top receptacle is switched. The lower receptacle shall be unswitched.
3. Duplex Receptacles on Emergency Circuit:
a. In rooms without emergency powered general lighting, the emergency receptacles shall be of the self-illuminated type.
4. Ground Fault Current Interrupter (GFCI) Duplex Receptacles: Shall be an integral unit, hospital-grade, suitable for mounting in a standard outlet box, with end-of-life indication and provisions to isolate the face due to improper wiring. GFCI receptacles shall be self-test receptacles in accordance with UL 943.
a. Ground fault interrupter shall consist of a differential current transformer, self-test, solid state sensing circuitry and a circuit interrupter switch. Device shall have nominal sensitivity to ground leakage current of 4-6 milliamperes and shall function to interrupt the current supply for any value of ground leakage current above five milliamperes (+ or – 1 milliampere) on the load side of the device. Device shall have a minimum nominal tripping time of 0.025 second.
b. Self-test function shall be automatically initiated within 5 seconds after power is activated to the receptacles. Self-test function shall be periodically and automatically performed every
3 hours or less.
c. End-of-life indicator light shall be a persistent flashing or blinking light to indicate that the GFCI receptacle is no longer in service.
5. Tamper-Resistant Duplex Receptacles:
a. Bodies shall be gray in color.
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1) Shall permit current to flow only while a standard plug is in the proper position in the receptacle.
2) Screws exposed while the wall plates are in place shall be the tamperproof type.
C. Duplex Receptacles – Non-hospital Grade: shall be the same as duplex receptacles – hospital grade in accordance with sections 2.1A and 2.1B of this specification, except for the hospital grade listing.
1. Bodies shall be nylon.
D. Receptacles - 20, 30, and 50 ampere, 250 Volts: Shall be complete with appropriate cord grip plug.
E. Weatherproof Receptacles: Shall consist of a duplex receptacle, mounted in box with a gasketed, weatherproof, cast metal cover plate and cap over each receptacle opening. The cap shall be permanently attached to the cover plate by a spring-hinged flap. The weatherproof integrity shall not be affected when heavy duty specification or hospital grade attachment plug caps are inserted. Cover plates on outlet boxes mounted flush in the wall shall be gasketed to the wall in a watertight manner.
F. Surge Protective Receptacles shall have integral surge suppression in line to ground, line to neutral, and neutral to ground modes.
1. Surge Protective Components: Multiple metal-oxide varistors; with a nominal clamp-level rating of 400 Volts, and minimum single transient pulse energy dissipation of 210 Joules.
2. Active Surge Protective Indication: LED, visible in face of device to indicate device is active or no longer in service.
2.2 TOGGLE SWITCHES
A. Toggle switches shall be totally enclosed tumbler type with nylon bodies. Handles shall be ivory in color unless otherwise specified or shown on the drawings.
1. Switches installed in hazardous areas shall be explosion-proof type in accordance with the NEC and as shown on the drawings.
2. Shall be single unit toggle, butt contact, quiet AC type, heavy-duty general-purpose use with an integral self grounding mounting strap with break-off plasters…
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