W912HV-21-B-0002-am0004 Revised Specifications .pdf

Crossroads Food Court Renovation 20SF0003 MCAS Iwakuni, Japan

SECTION 26 20 00

INTERIOR DISTRIBUTION SYSTEM

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only. Contractor may substitute compatible Japan Industrial Standard (JIS), Ministry of Land, Infrastructure and Transport (MLIT), Japan Electrical Safety Inspection Associations, Japanese Electrotechnical Committee (JEC) or Japan Wire Industry Association (JCS) standards for non-Japanese standards, as approved by the Contracting Officer's representative.

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE C2 (2017; Errata 1-2 2017; INT 1 2017) National Electrical Safety Code

JAPANESE ELECTROTECHNICAL COMMITTEE (JEC)

JEC 2200 (2015) Transformer

JAPANESE INDUSTRIAL STANDARDS (JIS)

JIS C 0365 (2007) Protection Against Electric Shock - Common Aspects for Installation and Equipment

JIS C 0920 (2003) Degrees Of Protection Provided By Enclosures (IP Code)

JIS C 2336 (2012) Pressure-sensitive polyvinyl chloride tapes for electrical purposes

JIS C 2338 (2012) Polyester adhesive tape for electrical insulation

JIS C 2805 (2010) Crimp terminal for copper wire

JIS C 2806 (2003) Bare crimping sleeve for copper wire

JIS C 2810 (1995) General rules on non-separable type wire connectors for interior wiring

JIS C 3101 (R1999) Hard-Drawn Copper Wires for Electrical Purposes

JIS C 3105 (2011) Hard-Drawn Copper Stranded Conductors

JIS C 3341 (R2000) Polyvinyl Chloride Insulated Drop Service Wires, Type DV

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JIS C 3401 (2002) Control Cables

JIS C 3605 (R2002) 600V Polyethylene Insulated Cables, Type CV

JIS C 3612 (2002) 600V Flame Retardant Polyethylene Insulated Wires

JIS C 5381-11 (2014) Low-voltage surge protective devices -- Part 11: Surge protective devices connected to low-voltage power systems -- Requirements and test methods

JIS C 5381-12 (2014) Low-voltage surge protective devices -- Part 12: Surge protective devices connected to low-voltage power distribution systems -- Selection and application principles

JIS C 8201-2-1 (2011) Low-Voltage Switchgear and Control Gear - Part 2-1: Circuit-Breakers

JIS C 8201-3 (2009) Low-voltage switchgear and control units-Part 3: Switches,Disconnector, disconnecting switch and fuse assembly unit

JIS C 8201-4-1 (2010) Low-voltage switchgear and controlgear -- Part 4-1: Contactors and motor-starters: Electromechanical contactors and motor-starters

JIS C 8201-4-2 (2010) Low-voltage switchgear and controlgear -- Part 4-2: Contactors and motor-starters -- AC semiconductor motor controllers and starters

JIS C 8222 (2004) Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses (RCBOs)

JIS C 8281-1 (2019) Plugs and socket-outlets for household and similar purposes -- Part 1:

General requirements

JIS C 8303 (2007) Plugs And Receptacles For Domestic And Similar General Use

JIS C 8304 (2009) Small switches for indoor use

JIS C 8305 (2019) Rigid steel conduits

JIS C 8309 (2019) Pliable metal conduits

JIS C 8330 (1999) Fittings for rigid metal conduits

JIS C 8340 (R1999) Boxes and Box Covers for Rigid Metal Conduits

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JIS C 8350 (1999) Fittings for pliable metal conduits

JIS C 8411 (2019) Pliable plastics conduits

JIS C 8430 (2019) Unplasticized polyvinyl chloride (PVC-U) conduits

JIS C 8432 (2019) Fittings of unplasticized polyvinyl chloride (PVC-U) conduits

JIS C 8435 (2018) Boxes And Box Covers Of Plastic Conduits

JIS C 8462-1 (2012) Boxes and enclosures for electrical accessories for household and similar fixed electrical installations -- Part 1:

General requirements

JIS C 8480 (R2016) Box-Type Switchgear Assemblies for Low-Voltage Distribution Purpose

JIS C 60364-5-54 (2006) Building Electrical Equipment-Part 5-54: Selection Of Electrical Equipment and Construction-Grounding Equipment, Protective Conductor And Protective Bonding Conductor

JIS C 60364-6 (2010) Low-voltage electrical installations -- Part 6: Verification

JIS C 61558-1 (2019) Safety of transformers, reactors, power supply units and combinations thereof -- Part 1: General requirements and tests

JIS K 6743 (2016) Unplasticized Poly (Vinyl Chloride) (PVC-U) Pipe Fittings for Water Supply

JIS K 6911 (2006) Thermosetting plastic general test method

JIS K 6741 (R2016) Unplasticized Poly (Vinyl Chloride) (PVC-U) Pipes

JIS X 5150 (R2016) Information Technology-Generic Cabling for Customer Premises

JIS Z 9101 (2018) Graphical symbols -- Safety colours and safety signs -- Part 1: Design principles for safety signs and safety markings

JIS Z 9290-1 (2014) Protection Against Lightning - Part 1: General Principles

JAPAN WIRE INDUSTRY ASSOCIATION STANDARD (JCS)

JCS 1226 (2003) Soft Stranded Wire

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MINISTRY OF LAND, INFRASTRUCTURE, TRANSPORT AND TOURISM,

GOVERNMENT OF JAPAN (MLIT)

MLIT ESS (2019) MLIT Electrical Standard Specification (ESS)

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

NEMA WD 6 (2016) Wiring Devices Dimensions Specifications

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 70E (2018; TIA 18-1; TIA 81-2) Standard for Electrical Safety in the Workplace

1.2 DEFINITIONS

Unless otherwise specified or indicated, electrical and electronics terms used in these specifications, and on the drawings, are as defined.

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for Contractor Quality Control approval. Submit the following in accordance with Section 01 33 00.

SD-02 Shop Drawings

Panelboards; G

Transformers; G

Marking strips drawings;

SD-03 Product Data

Receptacles;

Circuit breakers;

Switches;

Transformers; G

Enclosed circuit breakers;

Manual motor starters

Manual Transfer Switch

CATV outlets;

Surge protective devices;

Include performance and characteristic curves.

SD-10 Operation and Maintenance Data

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Electrical Systems, Data Package 5;

1.4 QUALITY ASSURANCE

1.4.1 Regulatory Requirements

In each of the publications referred to herein, consider the advisory provisions to be mandatory, as though the word, "shall" or "must" had been substituted for "should" wherever it appears. Interpret references in these publications to the "authority having jurisdiction," or words of similar meaning, to mean the Contracting Officer. Provide equipment, materials, installation, and workmanship in accordance with the mandatory and advisory provisions of applicable codes and standards unless more stringent requirements are specified or indicated.

1.4.2 Standard Products

Provide materials and equipment that are products of manufacturers regularly engaged in the production of such products which are of equal material, design and workmanship and:

a. Have been in satisfactory commercial or industrial use for 2 years prior to bid opening including applications of equipment and materials under similar circumstances and of similar size.

b. Have been on sale on the commercial market through advertisements, manufacturers' catalogs, or brochures during the 2-year period.

c. Where two or more items of the same class of equipment are required, provide products of a single manufacturer; however, the component parts of the item need not be the products of the same manufacturer unless stated in this section.

1.4.2.1 Alternative Qualifications

Products having less than a 2-year field service record will be acceptable if a certified record of satisfactory field operation for not less than 6000 hours, exclusive of the manufacturers' factory or laboratory tests, is furnished.

1.4.2.2 Material and Equipment Manufacturing Date

Products manufactured more than 3 years prior to date of delivery to site are not acceptable.

1.5 MAINTENANCE

1.5.1 Electrical Systems

Submit operation and maintenance manuals for electrical systems that provide basic data relating to the design, operation, and maintenance of the electrical distribution system for the building. Include the following:

a. Single line diagram of the "as-built" building electrical system.

b. Schematic diagram of electrical control system (other than HVAC, covered elsewhere).

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c. Manufacturers' operating and maintenance manuals on active electrical equipment.

1.6 WARRANTY

Provide equipment items supported by service organizations that are reasonably convenient to the equipment installation in order to render satisfactory service to the equipment on a regular and emergency basis during the warranty period of the contract.

1.7 SEISMIC REQUIREMENTS

Provide seismic details conforming to Section 13 48 00 SEISMIC BRACING FOR MISCELLANEOUS EQUIPMENT and to Section 26 05 48.00 10 SEISMIC PROTECTION

FOR ELECTRICAL EQUIPMENT.

PART 2 PRODUCTS

2.1 MATERIALS AND EQUIPMENT

As a minimum, meet requirements of UL or Japanese standards, where UL or applicable Japanese codes and standards are established for those items for all materials, equipment, and devices.

2.2 CONDUIT AND FITTINGS

Conform to the following:

2.2.1 Rigid Metallic Conduit or Type G Conduit

2.2.1.1 Rigid, Threaded Zinc-Coated Steel Conduit or Type G

JIS C 8305 , Type G. Diameter of conduit shall be as indicated.

2.2.2 Rigid Nonmetallic Conduit or Unplasticized Polyvinyl Chloride

JIS C 8430 for Type VE or HIVE conduit of diameter of less than 100 mm and JIS K 6741 for Type VP or HIVP conduit diameter or 100 mm and larger.

2.2.3 Electrical, Zinc-Coated Steel Metallic Tubing (EMT) or Type E Metallic Conduit

JIS C 8305 , Type E.

2.2.4 Flexible Metal Conduit

JIS C 8309 .

2.2.4.1 Liquid-Tight Flexible Metal Conduit, Steel

JIS C 8309 .

2.2.5 Fittings for Metal Conduit, EMT, and Flexible Metal Conduit

JIS C 8330 and JIS C 8350 . Ferrous fittings: cadmium- or zinc-coated in accordance with JIS C 8330 and JIS C 8350 .

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2.2.5.1 Fittings for Rigid Metal Conduit and IMC or Type G and Type C

Threaded-type. Split couplings unacceptable.

2.2.5.2 Fittings for EMT or Type E Conduit

Steel set screw type.

2.2.6 Fittings for Rigid Nonmetallic Conduit or Unplasticized Polyvinyl Chloride

JIS C 8432 for diameters less than 100 mm and JIS K 6743 for diameters 100 mm or larger.

2.2.7 Liquid-Tight Flexible Nonmetallic Conduit or Type PF

JIS C 8411 , Type PF. Do not use in concrete walls or slabs, in ceiling space and behind walls.

2.3 OUTLET BOXES AND COVERS

JIS C 8340 , cadmium- or zinc-coated, if ferrous metal. JIS C 8435 , if nonmetallic. Rated IP65 for wet locations.

2.3.1 Outlet Boxes for Telecommunications System

Provide the following:

a. Standard type 100 mm square by 54 mm deep.

b. Outlet boxes for wall-mounted telecommunications outlets: 125 square by 75 mm deep.

2.4 CABINETS, JUNCTION BOXES, AND PULL BOXES

Volume greater than 1640 mL, JIS C 8340 , hot-dip, zinc-coated, if sheet steel. Rated IP65 for wet or weatherproof locations as indicated per drawings.

2.5 WIRES AND CABLES

Provide wires and cables in accordance applicable requirements of Japanese standards for type of insulation, jacket, and conductor specified or indicated. Do not use wires and cables manufactured more than 12 months prior to date of delivery to site.

2.5.1 Conductors

Provide the following:

a. Conductor sizes and capacities shown are based on copper, unless indicated otherwise.

b. Conductors 1.25 sqmm and larger diameter: stranded.

c. Conductors 3.2 mm and smaller diameter: solid.

d. Conductors for remote control, alarm, and signal circuits, classes 1, 2, and 3: stranded unless specifically indicated otherwise.

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e. All conductors: copper.

2.5.1.1 Minimum Conductor Sizes

Provide minimum conductor size in accordance with the following:

a. Branch circuits: 2.0 mm.

b. Class 1 remote-control and signal circuits: 1.6 mm.

c. Class 2 low-energy, remote-control and signal circuits: 1.2 mm.

d. Class 3 low-energy, remote-control, alarm and signal circuits: 0.65 mm.

2.5.2 Color Coding

Provide color coding for service, feeder, branch, control, and signaling circuit conductors.

2.5.2.1 Ground and Neutral Conductors

Provide color coding of ground and neutral conductors as follows:

a. Grounding conductors: Green.

b. Neutral conductors: White or Gray.

c. Exception, where neutrals of more than one system are installed in same raceway or box, other neutrals color coding: white with a different colored (not green) stripe for each.

2.5.2.2 Ungrounded Conductors

Provide color coding of ungrounded conductors in different voltage systems as follows:

a. 208/120 volt, three-phase, four-wire

(1) Phase A - red

(2) Phase B - black

(3) Phase C - blue

b. 480/277 volt, three-phase

(1) Phase A - brown

(2) Phase B - orange

(3) Phase C - yellow

b. 105/210 volt, single phase, three-wire:

(1) Phase A - red

(2) Phase B - black

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2.5.3 Insulation

Unless specified or indicated otherwise, provide power and lighting wires rated for 600-volts,Type EM-IE conforming to JIS C 3612 or Type EM-CE, EM-CET or EM-ECEQ conforming to JIS C 3605 , except that grounding wire may be type TW conforming to JIS C 3612 , Type EM-IE; remote-control and signal circuits: Type TW or TF, conforming to JIS C 3401 , Type CEV. Where lighting fixtures require 90-degree Centigrade (C) conductors, provide only conductors with 90-degree C insulation or better.

2.5.4 Bonding Conductors

JIS C 3101 , solid bare copper wire for sizes 8 sqmm and smaller diameter;

JIS C 3105 and JCS 1226 , Class B, stranded bare copper wire for sizes 14 sqmm and larger diameter.

2.5.4.1 Telecommunications Bonding Backbone (TBB)

Provide a copper conductor TBB in accordance with JIS C 60364-5-54 with 14 sqmm minimum size, and sized at 3.3 sqmm per linear meter of conductor length up to a maximum size of 1500 sqmm.

2.5.4.2 Bonding Conductor for Telecommunications

Provide a copper conductor Bonding Conductor for Telecommunications between the telecommunications main grounding busbar (TMGB) and the electrical service ground in accordance with JIS C 60364-5-54 . Size the bonding conductor for telecommunications the same as the TBB.

2.5.5 Service Entrance Cables

Service Entrance (SE) and Underground Service Entrance (USE) Cables, JIS C 3341 and JIS C 3605 .

2.6 SPLICES AND TERMINATION COMPONENTS

JIS C 2805 , JIS C 2806 and JIS C 2810 for wire connectors and JIS C 2336 , JIS C 2338 for insulating tapes. Connectors for 5.5 sqmm and smaller diameter wires: insulated, pressure-type in accordance with JIS C 2805 , JIS C 2806 and JIS C 2810 or JIS C 2806 (twist-on splicing connector).

Provide solderless terminal lugs on stranded conductors.

2.7 DEVICE PLATES

Provide the following:

a. Device plates shall be tested in accordance with JIS C 8340 and JIS C 8435 , UL or JI S l i s t ed, one-piece device plates for outlets to suit the devices installed. Provide one-piece device plates to suit NEMA rated devices as indicated in drawings.

b. For metal outlet boxes, plates on unfinished walls: zinc-coated sheet steel or cast metal having round or beveled edges.

c. For nonmetallic boxes and fittings, other suitable plates may be provided.

d. Plates on finished walls: nylon or lexan, minimum 0.792 mm wall thickness and same color as receptacle or toggle switch with which

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e. Screws: machine-type with countersunk heads in color to match finish of plate.

f. Sectional type device plates are not be permitted.

g. Plates installed in wet locations: gasketed and UL or JI S listed for "wet locations."

2.8 SWITCHES

2.8.1 Toggle Switches

JIS C 8304 , single pole, totally enclosed with bodies of thermoplastic or thermoset plastic and mounting strap with grounding screw. Include the following:

a. Handles: white thermoplastic.

b. Wiring terminals: screw-type, side-wired.

c. Contacts: silver-cadmium and contact arm - one-piece copper alloy.

d. Switches: rated quiet-type ac only, 105 or 120 volts, with current rating and number of poles indicated.

2.8.2 Disconnect Switches

JIS C 8201-3 . Provide heavy duty-type switches where indicated, where switches are rated higher than 240 volts, and for double-throw switches.

Provide horsepower rated for switches serving as the motor-disconnect means. Provide switches in IP rated enclosure as indicated per

JIS C 8462-1 .

2.9 RECEPTACLES

Provide the following:

a. JIS C 8303 , JIS C 8281-1 , hard use (also designated heavy-duty) grounding-type. Provide NEMA rated receptacles as indicated in drawings.

b. Ratings and configurations: as indicated.

c. Bodies: white.

d. Face and body: thermoplastic supported on a metal mounting strap.

e. Dimensional requirements: per JIS C 8462-1 or per NEMA WD 6.

f. Screw-type, side-wired wiring terminals or of the solderless pressure type having suitable conductor-release arrangement.

g. Grounding pole connected to mounting strap.

h. The receptacle: containing triple-wipe power contacts and double or triple-wipe ground contacts.

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2.9.1 Switched Duplex Receptacles

Provide separate terminals for each ungrounded pole. Top receptacle:

switched when installed.

2.9.2 Weatherproof Receptacles

Provide receptacles, UL or JI S listed for use in "wet locations" or weather resistant per JIS C 8303 . Provide NEMA rated receptacles as indicated in drawings. Include cast metal box with gasketed, hinged, lockable and weatherproof while-in-use, polycarbonate, UV resistant/stabilized cover plate.

2.9.3 Ground-Fault Circuit Interrupter Receptacles

Duplex type for mounting in standard outlet box. Provide NEMA rated receptacles as indicated in drawings. Provide device capable of detecting current leak of 6 milliamperes or greater and tripping for Class A ground-fault circuit interrupter devices. Provide screw-type, side-wired wiring terminals or pre-wired (pigtail) leads.

2.9.4 Special Purpose Receptacles

Receptacles serving kitchen equipment are special purpose. Provide ratings as indicated.

2.9.5 Range Receptacles

Receptacle configuration as indicated, per drawings.

2.9.6 Tamper-Resistant Receptacles

Provide duplex receptacle with mechanical sliding shutters that prevent the insertion of small objects into its contact slots.

2.10 PANELBOARDS

Provide panelboards in accordance with the following:

a. JIS C 8480 and JIS C 8480 , JIS C 0920 having a short-circuit current rating as indicated.

b. Panelboards for use as service disconnecting means: additionally conform to manufacturer's recommendations.

c. Panelboards: circuit breaker-equipped.

d. Designed such that individual breakers can be removed without disturbing adjacent units or without loosening or removing supplemental insulation supplied as means of obtaining clearances as required by UL or JI S.

e. "Specific breaker placement" is required in panelboards to match the breaker placement indicated in the panelboard schedule on the drawings.

f. Use of "Subfeed Breakers" is not acceptable unless specifically indicated otherwise.

g. Main breaker: "separately" mounted "above" or "below" branch

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h. Where "space only" is indicated, make provisions for future installation of breakers.

i. Directories: indicate load served by each circuit in panelboard.

j. Directories: indicate source of service to panelboard (e.g., Panel PA served from Panel MDP).

k. Provide new directories for existing panels modified by this project as indicated.

l. Type directories and mount in holder behind transparent protective covering.

m. Panelboard nameplates: provided in accordance with paragraph FIELD

FABRICATED NAMEPLATES.

2.10.1 Enclosure

Provide panelboard enclosure in accordance with the following:

a. JIS C 0920 .

b. Cabinets mounted outdoors or flush-mounted: hot-dipped galvanized after fabrication.

c. Cabinets: painted in accordance with paragraph PAINTING.

d. Outdoor cabinets: Weatherproof rated IP code with conduit hubs welded to the cabinet.

e. Front edges of cabinets: form-flanged or fitted with structural shapes welded or riveted to the sheet steel, for supporting the panelboard front.

f. All cabinets: fabricated such that no part of any surface on the finished cabinet deviates from a true plane by more than 3 mm.

g. Holes: provided in the back of indoor surface-mounted cabinets, with outside spacers and inside stiffeners, for mounting the cabinets with a 15 mm clear space between the back of the cabinet and the wall surface.

h. Flush doors: mounted on hinges that expose only the hinge roll to view when the door is closed.

i. Each door: fitted with a combined catch and lock, except that doors over 600 mm long provided with a three-point latch having a knob with a T-handle, and a cylinder lock.

j. Keys: two provided with each lock, with all locks keyed alike.

k. Finished-head cap screws: provided for mounting the panelboard fronts on the cabinets.

2.10.2 Panelboard Buses

Support bus bars on bases independent of circuit breakers. Design main buses and back pans so that breakers may be changed without machining, W912HV-21-B-0002 SECTION 26 20 00 Page 12 (AM-0004) drilling, or tapping. Provide isolated neutral bus in each panel for connection of circuit neutral conductors. Provide separate ground bus identified as equipment grounding bus per JIS C 8480 for connecting grounding conductors; bond to steel cabinet.

2.10.3 Circuit Breakers

JIS C 8201-2-1 , thermal magnetic-type having a minimum short-circuit current rating equal to the short-circuit current rating of the panelboard in which the circuit breaker will be mounted. Breaker terminals: UL or JIS listed as suitable for type of conductor provided. Where indicated on the drawings, provide circuit breakers with shunt trip devices. Series rated circuit breakers and plug-in circuit breakers are unacceptable.

2.10.3.1 Multipole Breakers

Provide common trip-type with single operating handle. Design breaker such that overload in one pole automatically causes all poles to open.

Maintain phase sequence throughout each panel so that any three adjacent breaker poles are connected to Phases A, B, and C, respectively.

2.10.3.2 Circuit Breaker With Ground-Fault Circuit Interrupter or Type RCBO

JIS C 8222 . Provide Residual Current Device (RCBO) circuit breaker with a leakage current detection of 15 milliamperes or 30 milliamperes to provide ground fault protection.

2.10.3.3 Circuit Breakers for HVAC Equipment

Provide circuit breakers for HVAC equipment having motors (group or individual) marked for use with HACR type and UL or JI S listed as HACR type.

2.11 ENCLOSED CIRCUIT BREAKERS

JIS C 8201-2-1 . Individual molded case circuit breakers with voltage and continuous current ratings, number of poles, overload trip setting, and short circuit current interrupting rating as indicated. Enclosure type as indicated.

2.12 TRANSFORMERS

Provide transformers in accordance with the following:

a. JEC 2200 and JIS C 61558-1 , general purpose, dry-type, self-cooled, ventilated.

b. Provide transformers in indoor rated enclosure.

c. Transformer insulation system:

(1) 220 degrees C insulation system for transformers 15 kVA and greater, with temperature rise not exceeding 150 degrees C under full-rated load in maximum ambient of 40 degrees C.

(2) 180 degrees C insulation for transformers rated 10 kVA and less, with temperature rise not exceeding 150 degrees C under full-rated load in maximum ambient of 40 degrees C.

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2.13 MANUAL MOTOR STARTERS (MOTOR RATED SWITCHES)

Single pole designed for surface mounting with overload protection and pilot lights.

2.13.1 Pilot Lights

Provide yoke-mounted, seven element LED cluster light module. Color: red in accordance with JIS C 8201-4-1 and JIS C 8201-4-2 ..

2.14 MANUAL TRANSFER SWITCH

Provide manual transfer switch with integrated quick connection per drawings and in accordance with the following:

a. The transfer switch unit shall be manually operated and mechanically held. The switch shall be mechanically interlocked to ensure only one of three possible positions, Source 1, Source 2, or Center Off. Fused disconnect type switches shall not be acceptable.

b. The switch shall be positively locked and unaffected by momentary outages so that contact pressure is maintained at a constant value and temperature rise at the contacts is minimized for maximum reliability and operating life.

c. All main contacts shall be silver composition. Switches rated 600 amperes and above shall have segmented blow-on construction for high withstand current capability and be protected by separate arcing contacts.

d. Inspection of all contacts shall be possible from the front of the switch without disassembly of operating linkages and without disconnection of power conductors.

e. Designs utilizing components of molded-case circuit breakers, contactors, or parts thereof which are not intended for continuous duty, repetitive switching or transfer between two active power sources are not acceptable.

f. Transfer switch shall be 4-pole. Where neutral conductors must be switched, the manual transfer switch shall be provided with fully rated neutral transfer contacts.

g. The manual transfer switch shall be tested. Switch ratings of 600 – 3000 ampere shall have endurance rating of 3000 cycles.

h. Enclosure shall be rated IP65, weatherproof, stainless steel.

i. Manual Transfer Switch with Integrated Quick Connects contains 16 Series quick connects which provides a connecting means for connecting a portable generator. Quick connects are generally located on Source 2 (emergency) side. For 1000A-1200A models, there shall be three (3) rows of up to 5 single pole connections.

2.15 LOCKOUT REQUIREMENTS

Provide disconnecting means capable of being locked out for machines and other equipment to prevent unexpected startup or release of stored energy in accordance with MLIT ESS . Comply with requirements of Division 23, W912HV-21-B-0002 SECTION 26 20 00 Page 14 (AM-0004)

"Mechanical" for mechanical isolation of machines and other equipment.

2.16 TELECOMMUNICATIONS SYSTEM

Provide system of telecommunications wire-supporting structures (pathway), including: outlet boxes, conduits with pull wires and other accessories for telecommunications outlets and pathway in accordance with the drawings and as specified herein. Additional telecommunications requirements are specified in Section 27 10 00, BUILDING TELECOMMUNICATIONS CABLING SYSTEM.

2.17 COMMUNITY ANTENNA TELEVISION (CATV) SYSTEM

2.17.1 CATV Outlets

Provide flush mounted, 75-ohm, F-type connector outlet rated from 5 to 1000 MHz in standard electrical outlet boxes with mounting frame.

2.17.2 CATV Faceplates

Provide modular faceplates for mounting of CATV Outlets. Faceplate:

include designation labels and label covers for circuit identification.

Faceplate color: match outlet and switch coverplates.

2.17.3 Backboards

Provide void-free, fire rated interior grade plywood, 19 mm thick, 1200 by 2400 mm. Do not cover the fire stamp on the backboard. Coordinate CATV backboard requirements with telecommunications backboard requirements as specified in Section 27 10 00, BUILDING TELECOMMUNICATIONS CABLING.

2.18 GROUNDING AND BONDING EQUIPMENT

2.18.1 Ground Rods

JIS C 60364-5-54 . Ground rods: copper-clad steel, with minimum diameter of 14 mm and minimum length 1500 mm. Sectional ground rods are permitted.

2.18.2 Ground Bus

Copper ground bus: provided in the electrical equipment rooms as indicated.

2.19 MANUFACTURER'S NAMEPLATE

Provide on each item of equipment a nameplate bearing the manufacturer's name, address, model number, and serial number securely affixed in a conspicuous place; the nameplate of the distributing agent will not be acceptable.

2.20 FIELD FABRICATED NAMEPLATES

Provide field fabricated nameplates in accordance with the following:

a. JIS K 6911 .

b. Provide laminated plastic nameplates for each equipment enclosure, relay, switch, and device; as specified or as indicated on the drawings.

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c. Each nameplate inscription: identify the function and, when applicable, the position.

d. Nameplates: melamine plastic, 3 mm thick, white with black center core.

e. Provide red laminated plastic label with white center core where indicated.

f. Surface: matte finish. Corners: square. Accurately align lettering and engrave into the core.

g. Minimum size of nameplates: 25 by 65 mm.

h. Lettering size and style: a minimum of 6.35 mm high normal block style.

2.21 WARNING SIGNS

Provide field installed signs to warn qualified persons of potential electric arc flash hazards when warning signs are not provided by the manufacturer in accordance with NFPA 70E andor JIS Z 9101 for switchboards, panelboards, industrial control panels, and motor control centers. Provide marking that is clearly visible to qualified persons before examination, adjustment, servicing, or maintenance of the equipment.

2.22 FIRESTOPPING MATERIALS

Provide firestopping around electrical penetrations in accordance with Section 07 84 00, FIRESTOPPING.

2.23 SURGE PROTECTIVE DEVICES

Provide surge protective devices (SPD) which comply with JIS C 5381-11 and JIS C 5381-12 at the service entrance. Provide surge protectors in a indoor IP rated enclosure per JIS C 8462-1 . Use Type 1 or Type 2 SPD and connect on the load side of a dedicated circuit breaker. Locate SPD as close as practicable to service entrance equipment to keep conductor length as short as possible. Maximum allowed lead length is 900 mm.

Provide SPDs per JIS Z 9290-1 for the lightning protection system.

2.24 FACTORY APPLIED FINISH

Provide factory-applied finish on electrical equipment in accordance with the following:

a. JIS C 0920 corrosion-resistance test and the additional requirements as specified herein.

b. Interior and exterior steel surfaces of equipment enclosures:

thoroughly cleaned followed by a rust-inhibitive phosphatizing or equivalent treatment prior to painting.

c. Exterior surfaces: free from holes, seams, dents, weld marks, loose scale or other imperfections.

d. Interior surfaces: receive not less than one coat of

W912HV-21-B-0002 SECTION 26 20 00 Page 16 (AM-0004) corrosion-resisting paint in accordance with the manufacturer's standard practice.

e. Exterior surfaces: primed, filled where necessary, and given not less than two coats baked enamel with semigloss finish.

f. Equipment located indoors: Light Gray, and equipment located outdoors: Light Gray.

g. Provide manufacturer's coatings for touch-up work and as specified in paragraph FIELD APPLIED PAINTING.

PART 3 EXECUTION

3.1 INSTALLATION

Electrical installations, including weatherproof and hazardous locations and ducts, plenums and other air-handling spaces: conform to requirements of MLIT ESS , IEEE C2 , JIS C 0365 and to requirements specified herein.

3.1.1 Underground Service

Underground service conductors and associated conduit: continuous from service entrance equipment to outdoor power system connection.

3.1.2 Service Entrance Identification

Service entrance disconnect devices, switches, and enclosures: labeled and identified as such.

3.1.2.1 Labels

Wherever work results in service entrance disconnect devices in more than one enclosure, label each enclosure, new and existing, as one of several enclosures containing service entrance disconnect devices. Label, at minimum: indicate number of service disconnect devices housed by enclosure and indicate total number of enclosures that contain service disconnect devices. Provide laminated plastic labels conforming to paragraph FIELD FABRICATED NAMEPLATES. Use lettering of at least 6.35 mm in height, and engrave on black-on-white matte finish. Service entrance disconnect devices in more than one enclosure: provided only as permitted.

3.1.3 Wiring Methods

Provide insulated conductors installed in rigid steel conduit or type G, IMC or type C, rigid nonmetallic conduit or Unplasticized Polyvinyl Chloride, or EMT or Type E, except where specifically indicated or specified otherwise or required to be installed otherwise. Grounding conductor: separate from electrical system neutral conductor. Provide insulated green equipment grounding conductor for circuit(s) installed in conduit and raceways. Minimum conduit size: 16 mm in diameter for low voltage lighting and power circuits. Firestop conduit which penetrates fire-rated walls, fire-rated partitions, or fire-rated floors in accordance with Section 07 84 00, FIRESTOPPING.

3.1.3.1 Pull Wire

Install pull wires in empty conduits. Pull wire: plastic having minimum 890-N force tensile strength. Leave minimum 915 mm of slack at each end

W912HV-21-B-0002 SECTION 26 20 00 Page 17 (AM-0004) of pull wire.

3.1.4 Conduit Installation

Unless indicated otherwise, conceal conduit under floor slabs and within finished walls, ceilings, and floors. Keep conduit minimum 150 mm away from parallel runs of flues and steam or hot water pipes. Install conduit parallel with or at right angles to ceilings, walls, and structural members where located above accessible ceilings and where conduit will be visible after completion of project.

3.1.4.1 Restrictions Applicable to EMT or Type E

a. Do not install underground.

b. Do not encase in concrete, mortar, grout, or other cementitious materials.

c. Do not use in areas subject to severe physical damage including but not limited to equipment rooms where moving or replacing equipment could physically damage the EMT or Type E conduit.

d. Do not use in hazardous areas.

e. Do not use outdoors.

f. Do not use in fire pump rooms.

g. Do not use when the enclosed conductors must be shielded from the effects of High-altitude Electromagnetic Pulse (HEMP).

3.1.4.2 Restrictions Applicable to Nonmetallic Conduit or Type VE, HIVE, VP, HIVP

a. PVC Schedule 40 and PVC Schedule 80 or Type VE, HIVE, VP, HIVP

(1) Do not use in areas where subject to severe physical damage, including but not limited to, mechanical equipment rooms, electrical equipment rooms, hospitals, power plants, missile magazines, and other such areas.

(2) Do not use in hazardous (classified) areas.

(3) Do not use in fire pump rooms.

(4) Do not use in penetrating fire-rated walls or partitions, or fire-rated floors.

(5) Do not use above grade, except where allowed in this section for rising through floor slab or indicated otherwise.

(6) Do not use when the enclosed conductors must be shielded from the effects of High-altitude Electromagnetic Pulse (HEMP).

3.1.4.3 Restrictions Applicable to Flexible Conduit

Use only as specified in paragraph FLEXIBLE CONNECTIONS. Do not use when the enclosed conductors must be shielded from the effects of High-altitude

W912HV-21-B-0002 SECTION 26 20 00 Page 18 (AM-0004)

Electromagnetic Pulse (HEMP).

3.1.4.4 Underground Conduit

Plastic-coated rigid steel; plastic-coated steel IMC or type C, LL or LT;

PVC, Type EPC-40 or Type VE, HIVE, VP, HIVP. Convert nonmetallic conduit, other than PVC Schedule 40 or 80 or Type VE, HIVE, VP, HIVP, to plastic-coated rigid, or IMC, steel conduit before rising through floor slab. Plastic coating: extend minimum 150 mm above floor.

3.1.4.5 Conduit Through Floor Slabs

Where conduits rise through floor slabs, do not allow curved portion of bends to be visible above finished slab.

3.1.4.6 Stub-Ups

Provide conduits stubbed up through concrete floor for connection to free-standing equipment with adjustable top or coupling threaded inside for plugs, set flush with finished floor. Extend conductors to equipment in rigid steel conduit, except that flexible metal conduit may be used 150 mm above floor. Where no equipment connections are made, install screwdriver-operated threaded flush plugs in conduit end.

3.1.4.7 Conduit Support

Support conduit by pipe straps, wall brackets, threaded rod conduit hangers, or ceiling trapeze. Fasten by wood screws to wood; by toggle bolts on hollow masonry units; by concrete inserts or expansion bolts on concrete or brick; and by machine screws, welded threaded studs, or spring-tension clamps on steel work. Threaded C-clamps may be used on rigid steel conduit only. Do not weld conduits or pipe straps to steel structures. Do not exceed one-fourth proof test load for load applied to fasteners. Provide vibration resistant and shock-resistant fasteners attached to concrete ceiling. Do not cut main reinforcing bars for any holes cut to depth of more than 40 mm in reinforced concrete beams or to depth of more than 20 mm in concrete joints. Fill unused holes. In partitions of light steel construction, use sheet metal screws. In suspended-ceiling construction, run conduit above ceiling. Do not support conduit by ceiling support system. Conduit and box systems: supported independently of both (a) tie wires supporting ceiling grid system, and

(b) ceiling grid system into which ceiling panels are placed. Do not share supporting means between electrical raceways and mechanical piping or ducts. Provide conduit supports a maximum of 915 mm from boxes and enclosures. Coordinate installation with above-ceiling mechanical systems to assure maximum accessibility to all systems. Spring-steel fasteners may be used for lighting branch circuit conduit supports in suspended ceilings in dry locations. Where conduit crosses building expansion joints, provide suitable watertight expansion fitting that maintains conduit electrical continuity by bonding jumpers or other means. For conduits greater than 63 mm inside diameter, provide supports to resist forces of 0.5 times the equipment weight in any direction and 1.5 times the equipment weight in the downward direction.

3.1.4.8 Directional Changes in Conduit Runs

Make changes in direction of runs with symmetrical bends or cast-metal fittings. Make field-made bends and offsets with hickey or conduit-bending machine. Do not install crushed or deformed conduits.

W912HV-21-B-0002 SECTION 26 20 00 Page 19 (AM-0004)

Avoid trapped conduits. Prevent plaster, dirt, or trash from lodging in conduits, boxes, fittings, and equipment during construction. Free clogged conduits of obstructions.

3.1.4.9 Locknuts and Bushings

Fasten conduits to sheet metal boxes and cabinets with two locknuts where required, where insulated bushings are used, and where bushings cannot be brought into firm contact with the box; otherwise, use at least minimum single locknut and bushing. Provide locknuts with sharp edges for digging into wall of metal enclosures. Install bushings on ends of conduits, and provide insulating type where required.

3.1.4.10 Flexible Connections

Provide flexible steel conduit between 915 and 1830 mm in length for recessed and semirecessed lighting fixtures; for equipment subject to vibration, noise transmission, or movement; and for motors. Install flexible conduit to allow 20 percent slack. Minimum flexible steel conduit size: 16 mm diameter. Provide liquidtight flexible conduit in wet and damp locations for equipment subject to vibration, noise transmission, movement or motors. Provide separate ground conductor across flexible connections.

3.1.4.11 Telecommunications and Signal System Pathway

Install telecommunications pathway in accordance with JIS X 5150 .

a. Horizontal Pathway: Telecommunications pathways from the work area to the telecommunications room: installed and cabling length requirements in accordance with JIS X 5150 . Size conduits in accordance with JIS X 5150 and as indicated.

3.1.4.12 Community Antenna Television (CATV) System Conduits

Install a system of CATV wire-supporting structures (pathway), including:

outlet boxes, conduits with pull wires and other accessories for CATV outlets and pathway in accordance with JIS X 5150 . Provide distribution system with star topology with empty conduit and pullwire from each outlet to the headend equipment location.

3.1.5 Boxes, Outlets, and Supports

Provide boxes in wiring and raceway systems wherever required for pulling of wires, making connections, and mounting of devices or fixtures. Boxes for metallic raceways: cast-metal, hub-type when located in wet locations, when surface mounted on outside of exterior surfaces, when surface mounted on interior walls exposed up to 2135 mm above floors and walkways, and when specifically indicated. Boxes in other locations:

sheet steel, except that aluminum boxes may be used with aluminum conduit, and nonmetallic boxes may be used with nonmetallic conduit system.

Provide each box with volume required for number of conductors enclosed in box. Boxes for mounting lighting fixtures: minimum 100 mm square, or octagonal, except that smaller boxes may be installed as required by fixture configurations, as approved. Boxes for use in masonry-block or tile walls: square-cornered, tile-type, or standard boxes having square-cornered, tile-type covers. Provide gaskets for cast-metal boxes installed in wet locations and boxes installed flush with outside of exterior surfaces. Provide separate boxes for flush or recessed fixtures

W912HV-21-B-0002 SECTION 26 20 00 Page 20 (AM-0004) when required by fixture terminal operating temperature; provide readily removable fixturesfor access to boxes unless ceiling access panels are provided. Support boxes and pendants for surface-mounted fixtures on suspended ceilings independently of ceiling supports. Fasten boxes and supports with wood screws on wood, with bolts and expansion shields on concrete or brick, with toggle bolts on hollow masonry units, and with machine screws or welded studs on steel. 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 building structure or by bar hangers. Where bar hangers are used, attach bar to raceways on opposite sides of box, and support raceway with approved-type fastener maximum 610 mm from box. When penetrating reinforced concrete members, avoid cutting reinforcing steel.

3.1.5.1 Boxes

Boxes for use with raceway systems: minimum 40 mm deep, except where shallower boxes required by structural conditions are approved. Boxes for other than lighting fixture outlets: minimum 100 mm square, except that 100 by 50 mm boxes may be used where only one raceway enters outlet.

Telecommunications outlets: a minimum of 100 mm square by 54 mm deep, except for outlet boxes for handicap telephone stations. Mount outlet boxes flush in finished walls.

3.1.5.2 Pull Boxes

Construct of at least minimum size required of code-gauge aluminum or galvanized sheet steel, except where cast-metal boxes are required in locations specified herein. Provide boxes with screw-fastened covers.

Where several feeders pass through common pull box, tag feeders to indicate clearly electrical characteristics, circuit number, and panel designation.

3.1.5.3 Extension Rings

Extension rings are not permitted for new construction. Use only on existing boxes in concealed conduit systems where wall is furred out for new finish.

3.1.6 Mounting Heights

Mount panelboards, enclosed circuit breakers, motor controller and disconnecting switches so height of operating handle at its highest position is maximum 1980 mm above floor. Mount lighting switches and handicapped telecommunications stations 1220 mm above finished floor.

Mount receptacles and telecommunications outlets 460 mm above finished floor.

3.1.7 Conductor Identification

Provide conductor identification within each enclosure where tap, splice, or termination is made. For conductors 14 sqmm and smaller diameter, provide color coding by factory-applied, color-impregnated insulation.

For conductors 22 sqmm and larger diameter, provide color coding by plastic-coated, self-sticking markers; colored nylon cable ties and plates; or heat shrink-type sleeves. Identify control circuit terminations in accordance with Provide telecommunications system conductor identification as specified in Section 27 10 00 BUILDING

TELECOMMUNICATIONS CABLING SYSTEMS.

W912HV-21-B-0002 SECTION 26 20 00 Page 21 (AM-0004)

3.1.7.1 Marking Strips

Provide marking strips in accordance with the following:

a. Provide white or other light-colored plastic marking strips, fastened by screws to each terminal block, for wire designations.

b. Use permanent ink for the wire numbers

c. Provide reversible marking strips to permit marking both sides, or provide two marking strips with each block.

d. Size marking strips to accommodate the two sets of wire numbers.

e. Assign a device designation in accordance with JIS C 8201-4-1 and JIS C 8201-4-2 to each device to which a connection is made. Mark each device terminal to which a connection is made with a distinct terminal marking corresponding to the wire designation used on the Contractor's schematic and connection diagrams.

f. The wire (terminal point) designations used on the Contractor's wiring diagrams and printed on terminal block marking strips may be according to the Contractor's standard practice; however, provide additional wire and cable designations for identification of remote (external) circuits for the Government's wire designations.

g. Prints of the marking strips drawings submitted for approval will be so marked and returned to the Contractor for addition of the designations to the terminal strips and tracings, along with any rearrangement of points required.

3.1.8 Splices

Make splices in accessible locations. Make splices in conductors 5.5 sqmm and smaller diameter with insulated, pressure-type connector. Make splices in conductors 8 sqmm and larger diameter with solderless connector, and cover with insulation material equivalent to conductor insulation.

3.1.9 Covers and Device Plates

Install with edges in continuous contact with finished wall surfaces without use of mats or similar devices. Plaster fillings are not permitted. Install plates with alignment tolerance of 0.58 mm. Use of sectional-type device plates are not permitted. Provide gasket for plates installed in wet locations.

3.1.10 Electrical Penetrations

Seal openings around electrical penetrations through fire resistance-rated walls, partitions, floors, or ceilings in accordance with Section 07 84 00

FIRESTOPPING.

3.1.11 Grounding and Bonding

Provide in accordance with JIS Z 9290-1 . Ground exposed, non-current-carrying metallic parts of electrical equipment, metallic raceway systems, grounding conductor in metallic and nonmetallic raceways, W912HV-21-B-0002 SECTION 26 20 00 Page 22 (AM-0004) telecommunications system grounds, and neutral conductor of wiring systems. Make ground connection at main service equipment, and extend grounding conductor to point of entrance of metallic water service. Make connection to water pipe by suitable ground clamp or lug connection to plugged tee. If flanged pipes are encountered, make connection with lug bolted to street side of flanged connection. Supplement metallic water service grounding system with additional made electrode. Where ground fault protection is employed, ensure that connection of ground and neutral does not interfere with correct operation of fault protection.

3.1.11.1 Ground Rods

Provide cone pointed ground rods. Measure the resistance to ground using the fall-of-potential method described in JIS C 60364-6 . Do not exceed 25 ohms under normally dry conditions for the maximum resistance of a driven ground. If this resistance cannot be obtained with a single rod, additional rods, spaced on center, not less than twice the distance of the length of the rod,. If the resultant resistance exceeds 25 ohms measured not less than 48 hours after rainfall, notify the Contracting Officer who will decide on the number of ground rods to add.

3.1.11.2 Grounding Connections

Make grounding connections which are buried or otherwise normally inaccessible, excepting specifically those connections for which access for periodic testing is required, by exothermic weld or compression connector.

a. Make exothermic welds strictly in accordance with the weld manufacturer's written recommendations. Welds which are "puffed up" or which show convex surfaces indicating improper cleaning are not acceptable. Mechanical connectors are not required at exothermic welds.

b. Make compression connections using a hydraulic compression tool to provide the correct circumferential pressure. Provide tools and dies as recommended by the manufacturer. Use an embossing die code or other standard method to provide visible indication that a connector has been adequately compressed on the ground wire.

3.1.11.3 Ground Bus

Provide a copper ground bus in the electrical equipment rooms as indicated. Noncurrent-carrying metal parts of transformer neutrals and other electrical equipment: effectively grounded by bonding to the ground bus. Bond the ground bus to both the entrance ground, and to a ground rod or rods as specified above having the upper ends terminating approximately 100 mm above the floor. Make connections and splices of the brazed, welded, bolted, or pressure-connector type, except use pressure connectors or bolted connections for connections to removable equipment.

3.1.11.4 Resistance

3-point fall of potential test shall be performed to obtain a 5 ohm maximum value. Maximum resistance-to-ground of grounding system: do not exceed 5 ohms under dry conditions. Where resistance obtained exceeds 5 ohms, contact Contracting Officer for further instructions.

W912HV-21-B-0002 SECTION 26 20 00 Page 23 (AM-0004)

3.1.11.5 Telecommunications System

Provide telecommunications grounding in accordance with the following:

a. Telecommunications Bonding Conductors: Provide main telecommunications service equipment ground consisting of separate bonding conductor for telecommunications, between the TMGB and readily accessible grounding connection of the electrical service. Grounding and bonding conductors should not be placed in ferrous metallic conduit. If it is necessary to place grounding and bonding conductors in ferrous metallic conduit that exceeds 1 m in length, bond the conductors to each end of the conduit using a grounding bushing or a 14 sqmm conductor, minimum.

b. Telecommunications Grounding Connections: Telecommunications grounding connections to the TMGB: utilize listed compression two-hole lugs, exothermic welding, suitable and…