Amendment_0001.pdf
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- Lower Monumental Telephone System Upgrade Federal contract opportunity
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- W912EF-16-B-0002
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Amendment 0001
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| Bid_Opening_Abstract_W912EF-16-B0002.pdf | ||
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| Amendment_0002.pdf | ||
| SITE_VISIT_LISTING_16-B-0002.pdf | ||
| PLANS.pdf | ||
| Site_Visit_Info.docx | DOCX document | |
| A.07.23_IFB-_LMO_Telecomm_Upgrade_16-B-0002.pdf |
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W68SBV52800344
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT
Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.
15A. NAME AND TITLE OF SIGNER (Type or print)
30-105-04EXCEPTION TO SF 30
APPROVED BY OIRM 11-84
STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA
FAR (48 CFR) 53.243
The purpose of this amendment is to incorporate the changes detailed in the Summary of Changes.
The bid opening date has been extended to 2:00 PM local time on 08 June 2016.
1. CONTRACT ID CODE PAGE OF PAGES
J 1 5
16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)
16C. DATE SIGNED
BY 31-May-2016
16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR
(Signature of Contracting Officer)(Signature of person authorized to sign)
8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X W912EF-16-B-0002
X 9B. DATED (SEE ITEM 11)
04-May-2016
10B. DATED (SEE ITEM 13)
9A. AMENDMENT OF SOLICITATION NO.
11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer X is extended, is not extended.
Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:
(a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;
or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.
12. ACCOUNTING AND APPROPRIATION DATA (If required)
13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.
IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE
CONTRACT ORDER NO. IN ITEM 10A.
B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).
C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:
D. OTHER (Specify type of modification and authority)
E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.
14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)
10A. MOD. OF CONTRACT/ORDER NO.
2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)
6. ISSUED BY
3. EFFECTIVE DATE
31-May-2016
CODE
USAED, WALLA WALLA - CONTRACTING DIV.
HILLARY A. MORGAN
201 N. THIRD AVENUE
WALLA WALLA WA 99362
W912EF 7. ADMINISTERED BY (If other than item 6)
4. REQUISITION/PURCHASE REQ. NO.
CODE
See Item 6
FACILITY CODECODE
EMAIL:TEL:
W912EF-16-B-0002
SUMMARY OF CHANGES
Summary of changes for Amend -0001 Lower Monumental Telecommunications System Upgrade
1. Revised the following Specifications:
a. SECTION 26 20 00.00 28 INTERIOR DISTRIBUTION SYSTEM
• Revised paragraph 2.3.2 Trough-Type Cable Trays
b. SECTION 26 33 53.00 28 UNINTERRUPTIBLE POWER SUPPLY (UPS)
• Revised paragraph 2.1 UPS SYSTEM
2. Revised the following Drawings (See bracketed areas).
a. SHEET E-109
b. SHEET EP402
c. SHEET EP404
d. SHEET EP601
e. SHEET EP603
f. SHEET T-402
g. SHEET T-403
h. SHEET T-404
i. SHEET T-405
j. SHEET T-410
k. SHEET T-411
l. SHEET T-416
SECTION 00010 - SOLICITATION CONTRACT FORM
The required response date/time has changed from 03-Jun-2016 02:00 PM to 08-Jun-2016 02:00 PM.
SECTION 00700 - CONTRACT CLAUSES
The following have been modified:
252.236-7001 CONTRACT DRAWINGS AND SPECIFICATIONS (AUG 2000)
(a) The Government will provide to the Contractor, without charge, one set of contract drawings and specifications, except publications incorporated into the technical provisions by reference, in electronic or paper media as chosen by the Contracting Officer.
(b) The Contractor shall--
(1) Check all drawings furnished immediately upon receipt;
(2) Compare all drawings and verify the figures before laying out the work;
(3) Promptly notify the Contracting Officer of any discrepancies;
(4) Be responsible for any errors that might have been avoided by complying with this paragraph (b); and
(5) Reproduce and print contract drawings and specifications as needed.
(c) In general--
(1) Large-scale drawings shall govern small-scale drawings; and
(2) The Contractor shall follow figures marked on drawings in preference to scale measurements.
(d) Omissions from the drawings or specifications or the misdescription of details of work that are manifestly necessary to carry out the intent of the drawings and specifications, or that are customarily performed, shall not relieve the Contractor from performing such omitted or misdescribed details of the work. The Contractor shall perform such details as if fully and correctly set forth and described in the drawings and specifications.
(e) The work shall conform to the specifications and the contract drawings identified on the following index of drawings:
Drawing Number
Sheet Number
Title
Revision Number
Date
LOWER MONUMENTAL LOCK AND DAM
TELECOMMUNICATIONS SYSTEM UPGRADE
GENERAL
LMG-1-0-1/330 G-001 COVER SHEET AND LOCATION MAPS
LMG-1-0-1/331 G-002 INDEX TO DRAWINGS
ELECTRICAL
LMG-1-6-20/1 E-001 ELECTRICAL - LEGEND AND SYMBOLS
LMG-1-6-20/2 E-101 ELECTRICAL - KEY SITE PLAN
LMG-1-6-20/3 E-102 POWERHOUSE - PLAN EL 536
LMG-1-6-20/4 E-103 POWERHOUSE - PLAN EL 520
LMG-1-6-20/5 E-104 POWERHOUSE - PLAN EL 500
LMG-1-6-20/6 E-105 POWERHOUSE - PLAN EL 482
LMG-1-6-20/7 E-106 POWERHOUSE - PLAN EL 460
LMG-1-6-20/8 E-107 POWERHOUSE - PLAN EL 444
LMG-1-6-20/9 E-108 POWERHOUSE - PLAN EL 424
LMG-1-6-20/10 E-109 NAVIGATION LOCK - PLAN EL 538 A 5/27/16
LMG-1-6-20/11 E-901 ELETRICAL - PHOTOS 1
LMG-1-6-20/12 E-902 ELECTRICAL - PHOTO 2 - SHEET TITLE LINE 3
LMG-1-6-20/13 EP301 POWERHOUSE - UPS DETAIL - ELECTRICAL EL 482
LMG-1-6-20/14 EP401 POWERHOUSE - POWER TO TB.1 IN ADMIN
OFFICES - PLAN EL 536
LMG-1-6-20/15 EP402 POWERHOUSE - POWER TO TB.M - PLAN EL 520 A 5/27/16
LMG-1-6-20/16 EP403 POWERHOUSE - CONTROL ROOM ELECTRICAL -
PLAN EL 500
LMG-1-6-20/17 EP404 POWERHOUSE - CABLE SPREADING ROOM - A 5/27/16
ELECTRICAL PLAN EL 482
LMG-1-6-20/18 EP405 CHIEF & SUPERVISORS OFFICES - ELECTRICAL -
PLAN EL 479
LMG-1-6-20/19 EP406 MAINTENANCE SHOP - ELECTRICAL - PLAN EL 460
LMG-1-6-20/20 EP407 POWERHOUSE - ENGINEERING TECH OFFICE -
ELECTRICAL: PLAN EL 444
LMG-1-6-20/21 EP408 NORTH SHORE - NORTH GUARD SHACK -
ELECTRICAL PLAN
LMG-1-6-20/22 EP601 POWERHOUSE - TELECOMMUNICATIONS POWER
- ONE LINE DIAGRAM A 5/27/16
LMG-1-6-20/23 EP602 POWERHOUSE - TELECOMMUNICATIONS POWER
- RISER DIAGRAM
LMG-1-6-20/24 EP603 POWER TO TELEPHONE SWITCHES - CRT1 & CQ04
BUCKET 4E - PANEL SCHEDULES A 5/27/16
LMG-1-6-20/25 ET501 TELEPHONE BOX DETAILS
LMG-1-6-20/26 ET502 TELEPHONE SWITCHES & CABINETS - DETAILS &
ISOMETRIC
LMG-1-6-20/27 ET503 TELECOMMUNICATION DROPS - FRONT VIEW -
DETAILS
LMG-1-6-20/28 ET504 MAIN TELEPHONE RACK - CRT1 POWER
SUBPANEL - CONNECTIONS & DETAILS
LMG-1-6-20/29 T-401 POWERHOUSE - ADMIN. OFFICES - PLAN EL 536
LMG-1-6-20/30 T-402 POWERHOUSE - TELEPHONE ROOM - PLAN EL
520 A 5/27/16
LMG-1-6-20/31 T-403 POWERHOUSE - BRAKERS GALLERY - PLAN EL 520 A 5/27/16
LMG-1-6-20/32 T-404 POWERHOUSE - CONTROL ROOM - PLAN EL 500 A 5/27/16
LMG-1-6-20/33 T-405 POWERHOUSE - CABLE SPREADING ROOM - PLAN
EL 482 A 5/27/16
LMG-1-6-20/34 T-406 POWERHOUSE - SERVICE GALLERY - PLAN EL 482
LMG-1-6-20/35 T-407 POWERHOUSE - CHIEF & SUPERVISORS OFFICES -
PLAN EL 479
LMG-1-6-20/36 T-408 POWERHOUSE - MAINTENANCE SHOP - PLAN EL
LMG-1-6-20/37 T-409 POWERHOUSE - WAREHOUSE AREA - PLAN
EL.460
LMG-1-6-20/38 T-410 POWERHOUSE - ENGINEERING TECH OFFICE -
PLAN EL 444 A 5/27/16
LMG-1-6-20/39 T-411 POWERHOUSE - GENERATOR UNITS - PLAN EL
444 A 5/27/16
LMG-1-6-20/40 T-412 POWERHOUSE - PAINTER'S OFFICE & PUMP
ROOM - PLAN EL 424 AND EL 400
LMG-1-6-20/41 T-413 NAVIGATION LOCK - ELECTRICAL - UPSTREAM
SERVICE GALLERY - EL 538 PLAN
LMG-1-6-20/42 T-414 NAVIGATION LOCK - ELECTRICAL - DOWNSTREAM
SERVICE GALLERY - EL 533 PLAN
LMG-1-6-20/43 T-415 NORTH SHORE - NORTH GUARD SHACK - PLAN
LMG-1-6-20/44 T-416 FISH FACILITY BUILDING - PLANS A 5/27/16
LMG-1-6-20/45 T-601 COMMUNICATION SYSTEM UPGRADE -
DISTRIBUTION SCHEMATIC
(End of drawing list)
(End of Clause)
Contract drawings created on CADD will be available in electronic form for use by the Contractor. No For Information Only drawings are available on CADD. The Contractor assumes all risks associated in using electronic CADD drawings. The contract drawings shall govern if there are any discrepancies between the electronic copy and the contract drawing. The Contractor shall promptly notify the Contracting Officer of any discrepancies. The Government will not be responsible to correct the electronic CADD drawing. If contract modifications are issued, the associated electronic CADD drawings will not be available to the Contractor. Electronic copies of CADD drawings are only available in Bentley MicroStation format. The Government will provide the files on CD ROM. If the Contractor requires different media, such as floppy disks, the Contractor shall be responsible for all conversions required for their use and associated conversion inaccuracies.
(End of Summary of Changes)
Lower Monumental Telecommunication System Upgrade W912EF-16-B-0002 Amend-0001
SECTION TABLE OF CONTENTS
DIVISION 26 - ELECTRICAL
SECTION 26 20 00.00 28
INTERIOR DISTRIBUTION SYSTEM
PART 1 GENERAL
1.1 REFERENCES
1.2 DEFINITIONS
1.3 SUBMITTALS
PART 2 PRODUCTS
2.1 MATERIALS AND EQUIPMENT
2.2 CONDUIT AND FITTINGS
2.2.1 Galvanized Rigid Steel (GRS) Conduit
2.2.2 Surface Metal Raceway
2.3 CABLE TRAYS
2.3.1 Basket-Type Cable Trays
2.3.2 Trough-Type Cable Trays
2.4 OPEN TELECOMMUNICATIONS CABLE SUPPORT
2.4.1 Open Top Cable Supports
2.4.2 Closed Ring Cable Supports
2.5 OUTLET BOXES AND COVERS
2.5.1 Outlet Boxes for Telecommunications System
2.6 DEVICE PLATES
2.7 DISCONNECT SWITCHES
2.8 FUSES
2.8.1 Fuseholders
2.8.2 Cartridge Fuses, Current Limiting Type (Class R)
2.9 RECEPTACLES
2.9.1 Plugs
2.10 PANELBOARDS
2.10.1 Enclosure
2.10.2 Panelboard Buses
2.10.3 Circuit Breakers
2.11 TELECOMMUNICATIONS SYSTEM
2.12 MANUFACTURER'S NAMEPLATE
2.13 FIELD FABRICATED NAMEPLATES
2.14 WARNING SIGNS
2.15 WIREWAYS
2.16 FACTORY APPLIED FINISH
PART 3 EXECUTION
3.1 INSTALLATION
3.1.1 Wiring Methods
3.1.1.1 Pull Wire
3.1.2 Conduit Installation
3.1.2.1 Stub-Ups
3.1.2.2 Conduit Support
SECTION 26 20 00.00 28
G4EDHCMP
Line
3.1.2.3 Directional Changes in Conduit Runs
3.1.2.4 Locknuts and Bushings
3.1.3 Cable Tray Installation
3.1.4 Telecommunications Cable Support Installation
3.1.5 Boxes, Outlets, and Supports
3.1.5.1 Pull Boxes
3.1.5.2 Extension Rings
3.1.6 Mounting Heights
3.1.7 Conductor Identification
3.1.7.1 Marking Strips
3.1.8 Electrical Penetrations
3.1.9 Grounding and Bonding
3.1.9.1 Telecommunications System
3.1.10 Equipment Connections
3.1.11 Government-Furnished Equipment
3.1.12 Repair of Existing Work
3.1.12.1 Workmanship
3.1.12.2 Removal of Existing Electrical Distribution System
3.1.12.3 Continuation of Service
3.1.13 Surge Protective Devices
3.2 FIELD FABRICATED NAMEPLATE MOUNTING
3.3 WARNING SIGN MOUNTING
-- End of Section Table of Contents --
SECTION 26 20 00.00 28
SECTION 26 20 00.00 28
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.
ASTM INTERNATIONAL (ASTM)
ASTM D 709 (2001) Laminated Thermosetting Materials
ELECTRONIC INDUSTRIES ALLIANCE (EIA)
EIA TIA/EIA-569-A (1998; Addenda 2000, 2001) Commercial Building Standards for Telecommunications Pathways and Spaces (ANSI/TIA/EIA-569-A)
TIA J-STD-607-A (2002) Commercial Building Grounding (Earthing) and Bonding Requirements for Telecommunications
INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)
IEEE C2 (2012; Errata 2012; INT 1-4 2012; INT 5-7 2013) National Electrical Safety Code
IEEE Std 100 (2000) The Authoritave Dictionary of IEEE Standards Terms
NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)
NEMA 250 (2008) Enclosures for Electrical Equipment (1000 Volts Maximum)
NEMA FU 1 (2002) Low Voltage Cartridge Fuses
NEMA ICS 1 (2000; R 2005) Industrial Control and Systems: General Requirements
NEMA ICS 6 (1993; R 2001) Industrial Control and Systems: Enclosures
NEMA KS 1 (2001) Enclosed and Miscellaneous Distribution Equipment Switches (600 Volts Maximum)
NEMA VE 1 (2002) Metal Cable Tray Systems
NEMA WD 1 (1999) General Color Requirements for Wiring Devices
NEMA WD 6 (2002) Wiring Devices - Dimensional Requirements
NEMA Z535.4 (2002) Product Safety Signs and Labels
NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)
NFPA 70 (2014; AMD 1 2013; Errata 1 2013; AMD 2 2013; Errata 2 2013; AMD 3 2014; Errata 3 2014) National Electrical Code
NFPA 70E (2012; Errata 2012) Standard for Electrical Safety in the Workplace
NFPA 780 (2004) Installation of Lightning Protection Systems
UNDERWRITERS LABORATORIES (UL)
UL 2043 (1996; R 2001, Bul. 2001) Fire Test for Heat and Visible Smoke Release for Discrete Products and Their Accessories Installed in Air-Handling Spaces
UL 489 (2002; Rev thru May 2003) Molded-Case Circuit Breakers, Molded-Case Switches, and Circuit-Breaker Enclosures
UL 498 (2001; Rev thru Oct 2002) Attachment Plugs and Receptacles
UL 5 (2004) Surface Metal Raceways and Fittings
UL 50 (2007; Reprint Apr 2012) Enclosures for Electrical Equipment, Non-environmental Considerations
UL 512 (1993; Rev thru Mar 1999) Fuseholders
UL 514A (2004) Metallic Outlet Boxes
UL 514C (2014) Nonmetallic Outlet Boxes, Flush-Device Boxes, and Covers
UL 67 (1993; Rev thru Nov 2003) Panelboards
UL 869A (1998) Reference Standard for Service Equipment
UL 870 (1995; Rev thru Jul 2003) Wireways, Auxiliary Gutters, and Associated Fittings
1.2 DEFINITIONS
Unless otherwise specified or indicated, electrical and electronics terms used in these specifications, and on the drawings, shall be as defined in IEEE Std 100 .
1.3 SUBMITTALS
Government approval is required for submittals with a "G" designation;
submittals having an "I" designation are for information only. A designation following the "G" or "I" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with SECTION 01 33 00 SUBMITTAL PROCEDURES:
SD-02 Shop Drawings
Panelboards ; I, EL
Include wiring diagrams and installation details of equipment indicating proposed location, layout and arrangement, control panels, accessories, piping, ductwork, and other items that must be shown to ensure a coordinated installation. Wiring diagrams shall identify circuit terminals and indicate the internal wiring for each item of equipment and the interconnection between each item of equipment. Drawings shall indicate adequate clearance for operation, maintenance, and replacement of operating equipment devices.
Wireways ; G, EL
Marking strips drawings; I, EL
SD-03 Product Data
Cable trays ; I, EL
Receptacles ; I, EL
Circuit breakers ; I, EL
Disconnect Switches ; I, EL
Fuses ; I, EL
PART 2 PRODUCTS
2.1 MATERIALS AND EQUIPMENT
Materials, equipment, and devices shall, as a minimum, meet requirements of UL, where UL standards are established for those items, and requirements of NFPA 70E.
2.2 CONDUIT AND FITTINGS
Shall conform to the following:
2.2.1 Galvanized Rigid Steel (GRS) Conduit
2.2.2 Surface Metal Raceway
UL 5 , two-piece painted steel, totally enclosed, snap-cover type.
2.3 CABLE TRAYS
NEMA VE 1. Cable trays shall form a wireway system, and shall be of nominal 6 inch depth as indicated. Cable trays shall be constructed of aluminum steel that has been zinc-coated after fabrication. Trays shall include splice and end plates, dropouts, and miscellaneous hardware.
Edges, fittings, and hardware shall be finished free from burrs and sharp edges. Fittings shall have not less than load-carrying ability of straight tray sections and shall have manufacturer's minimum standard radius. Radius of bends shall be 12 inches . Radius of bends shall be as indicated.
2.3.1 Basket-Type Cable Trays
Provide size as indicated of nominal 18 inch width and 4inch depth with maximum wire mesh spacing of 2 by 4 inch .
2.3.2 Trough-Type Cable Trays
Provide size as indicated of nominal 18 inch width , and 6 inch depth .
2.4 OPEN TELECOMMUNICATIONS CABLE SUPPORT
2.4.1 Open Top Cable Supports
Provide open top cable supports in accordance with UL 2043 . Open top cable supports shall be galvanized.
2.4.2 Closed Ring Cable Supports
Provide closed ring cable supports in accordance with UL 2043 . Closed ring cable supports shall be galvanized.
2.5 OUTLET BOXES AND COVERS
UL 514A , cadmium- or zinc-coated, if ferrous metal. UL 514C , if nonmetallic.
2.5.1 Outlet Boxes for Telecommunications System
Provide standard type 4 3/8 inches by 2 1/2 inches by 2 1/8 inches deep or similar standard outlet boxes for wall-mounted telecommunications. Outlets shall be 4 by 2 1/8 by 2 1/8 inches deep. Depth of boxes shall be large enough to allow manufacturers' recommended conductor bend radii. Outlet boxes for fiber optic telecommunication outlets shall include a minimum 3/8 inch deep single or two gang plaster ring as shown and installed using a minimum 1 inch conduit system. Outlet boxes for handicapped telecommunications station shall be 4 by 2 1/8 by 2 1/8 inches deep.
2.6 DEVICE PLATES
Provide UL listed TIA standard plastic face plate for each outlet to suit the devices installed. For metal outlet boxes, plates on unfinished walls shall be of zinc-coated sheet steel or cast metal having round or beveled edges. For nonmetallic boxes and fittings, other suitable plates may be provided. Plates on finished walls shall be nylon or lexan, minimum 0.03 inch wall thickness. Plates shall be same color as receptacle or toggle switch with which they are mounted. Plates on finished walls shall be satin finish stainless steel or brushed-finish aluminum, minimum 0.03 inch thick. Screws shall be machine-type with countersunk heads in color to match finish of plate. Sectional type device plates will not be permitted. Plates installed in wet locations shall be gasketed and UL
SECTION 26 20 00.00 28
listed for "wet locations.
2.7 DISCONNECT SWITCHES
NEMA KS 1. Provide heavy duty-type switches where indicated, where switches are rated higher than 240 volts, and for double-throw switches.
Fused switches shall utilize Class R fuseholders and fuses, unless indicated otherwise. Switches serving as motor-disconnect means shall be horsepower rated. Provide switches in NEMA 12, enclosures per NEMA ICS 6 .
2.8 FUSES
NEMA FU 1. Provide complete set of fuses for each fusible panel.
Contractor shall provide spare fuses. Time-current characteristics curves of fuses serving or connected in series with or other circuit protective devices shall be coordinated for proper operation. Submit coordination data for approval. Fuses shall have voltage rating not less than circuit voltage.
2.8.1 Fuseholders
Provide in accordance with UL 512 .
2.8.2 Cartridge Fuses, Current Limiting Type (Class R)
Associated fuseholders shall be Class R only.
2.9 RECEPTACLES
UL 498 , hard use, heavy-duty, UL 498 , grounding-type. Ratings and configurations shall be as indicated L5-20R. Bodies shall be of ivory NEMA WD 1. Face and body shall be thermoplastic supported on a metal mounting strap. Dimensional requirements shall be per NEMA WD 6. Provide screw-type, side-wired wiring terminals or of the solderless pressure type having suitable conductor-release arrangement. Connect grounding pole to mounting strap. The receptacle shall contain triple-wipe power contacts and double or triple-wipe ground contacts.
2.9.1 Plugs
Provide heavy-duty, rubber-covered, four, of required size, install plugs thereon, and attach to equipment. Plugs shall be UL listed with receptacles, complete with grounding blades. Where equipment is not available, turn over plugs and cord assemblies to the Government.
2.10 PANELBOARDS
UL 67 and UL 50 having a short-circuit current rating of 10,000 amperes symmetrical minimum. Panelboards for use as service disconnecting means shall additionally conform to UL 869A . Panelboards shall be circuit breaker-equipped. Design shall be 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. "Specific breaker placement" is required in panelboards to match the breaker placement indicated in the panelboard schedule on the drawings. Use of "Subfeed Breakers" is not acceptable unless specifically indicated otherwise. Main breaker shall be "separately" mounted "above" branch breakers. Where "space only" is indicated, make provisions for future installation of breakers. Directories shall indicate load served by each circuit in panelboard. Directories shall also indicate source of service to panelboard (e.g., Panel PA served from Panel MDP). Provide new directories for existing panels modified by this project as indicated.
Type directories and mount in holder behind transparent protective covering. Panelboards shall be listed and labeled for their intended use.
Panelboard shall have nameplates in accordance with paragraph FIELD
FABRICATED NAMEPLATES.
UL 67 and UL 50 . Panelboards for use as service disconnecting means shall additionally conform to UL 869A . Panelboards shall be circuit breaker-equipped. Design shall be 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. Where "space only" is indicated, make provisions for future installation of breaker sized as indicated. Directories shall indicate load served by each circuit of panelboard. Directories shall also indicate source of service (upstream panel, switchboard, motor control center, etc.) to panelboard. Type directories and mount in holder behind transparent protective covering. Panelboard shall have nameplates in accordance with paragraph FIELD FABRICATED NAMEPLATES.
2.10.1 Enclosure
Enclosures shall meet the requirements of UL 50 . All cabinets shall be fabricated from sheet steel of not less than No. 10 gauge if flush-mounted or mounted outdoors, and not less than No. 12 gauge if surface-mounted indoors, with full seam-welded box ends. Cabinets mounted outdoors or flush-mounted shall be hot-dipped galvanized after fabrication. Cabinets shall be painted in accordance with paragraph PAINTING. Outdoor cabinets shall be of NEMA 3R raintight with conduit hubs welded to the cabinet and removable steel plate 1/4 inch thick in the bottom for field drilling for conduit connections. Front edges of cabinets shall be form-flanged or fitted with structural shapes welded or riveted to the sheet steel, for supporting the panelboard front. All cabinets shall be so fabricated that no part of any surface on the finished cabinet shall deviate from a true plane by more than 1/8 inch .
Holes shall be provided in the back of indoor surface-mounted cabinets, with outside spacers and inside stiffeners, for mounting the cabinets with a 1/2 inch clear space between the back of the cabinet and the wall surface. Flush doors shall be mounted on hinges that expose only the hinge roll to view when the door is closed. Each door shall be fitted with a combined catch and lock, except that doors over 24 inches long shall be provided with a three-point latch having a knob with a T-handle, and a cylinder lock. Two keys shall be provided with each lock, and all locks shall be keyed alike. Finished-head cap screws shall be provided for mounting the panelboard fronts on the cabinets.
2.10.2 Panelboard Buses
Support bus bars on bases independent of circuit breakers. Main buses and back pans shall be designed so that breakers may be changed without machining, 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 UL 67 for connecting grounding conductors; bond to steel cabinet. In addition to equipment grounding bus, provide second "isolated" ground bus, where indicated.
2.10.3 Circuit Breakers
UL 489 , 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 shall be mounted. Breaker terminals shall be UL 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 without a self-contained bracket and not secured by a positive locking device requiring mechanical release for removal are unacceptable. Series rated circuit breakers and plug-in circuit breakers are unacceptable.
2.11 TELECOMMUNICATIONS SYSTEM
Provide system of telecommunications wire-supporting structures pathway, including: outlet boxes, conduits with pull wires wireways, cable trays, and other accessories for telecommunications outlets and pathway in accordance with EIA TIA/EIA-569-A and as specified herein. Additional telecommunications requirements are specified in Section 27 10 00.00 28 , BUILDING TELECOMMUNICATIONS CABLING SYSTEM.
2.12 MANUFACTURER'S NAMEPLATE
Each item of equipment shall have 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.
2.13 FIELD FABRICATED NAMEPLATES
ASTM D 709 . Provide laminated plastic nameplates for each equipment enclosure, relay, switch, and device; as specified or as indicated on the drawings. Each nameplate inscription shall identify the function and, when applicable, the position. Nameplates shall be melamine plastic,
0.125 inch thick, white with black center core. Provide red laminated plastic label with white center core where indicated. Surface shall be matte finish. Corners shall be square. Accurately align lettering and engrave into the core. Minimum size of nameplates shall be one by 2.5 inches . Lettering shall be a minimum of 0.25 inch high normal block style.
2.14 WARNING SIGNS
Provide warning signs for flash protection in accordance with NFPA 70E and NEMA Z535.4 for switchboards, panelboards, industrial control panels, and motor control centers that are in other than dwelling occupancies and are likely to require examination, adjustment, servicing, or maintenance while energized. Provide field installed signs to warn qualified persons of potential electric arc flash hazards when warning signs are not provided by the manufacturer. The marking shall be clearly visible to qualified persons before examination, adjustment, servicing, or maintenance of the equipment.
2.15 WIREWAYS
UL 870 . Material shall be steel galvanized 16 gauge for heights and depths up to 6 by 6 inches , and 14 gauge for heights and depths up to 12 by 12 inches . Provide in length required for the application with hinged screw- cover NEMA 3R enclosure per NEMA ICS 6 .
Provide and install 1/2" plenum-rated corrugated innerduct in trays for fiber patch cable runs as indicated in design sheets.
2.16 FACTORY APPLIED FINISH
Electrical equipment shall have factory-applied painting systems which shall, as a minimum, meet the requirements of NEMA 250 corrosion-resistance test and the additional requirements as specified herein. Interior and exterior steel surfaces of equipment enclosures shall be thoroughly cleaned and then receive a rust-inhibitive phosphatizing or equivalent treatment prior to painting. Exterior surfaces shall be free from holes, seams, dents, weld marks, loose scale or other imperfections. Interior surfaces shall receive not less than one coat of corrosion-resisting paint in accordance with the manufacturer's standard practice. Exterior surfaces shall be primed, filled where necessary, and given not less than two coats baked enamel with semigloss finish. Equipment located indoors shall be ANSI Light Gray, and equipment located outdoors shall be ANSI Light Gray. 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 ducts, plenums and other air-handling spaces, shall conform to requirements of NFPA 70 and IEEE C2 and to requirements specified herein.
3.1.1 Wiring Methods
Provide insulated conductors installed in rigid steel conduit, except where specifically indicated or specified otherwise or required by NFPA 70 to be installed otherwise. Grounding conductor shall be separate from neutral conductor. Provide insulated green equipment grounding conductor for circuit(s) installed in conduit and raceways. Shared neutral, or multi-wire branch circuits, are not permitted with arc-fault circuit interrupters. Minimum conduit size shall be 1/2 inch in diameter for low voltage lighting and power circuits. Vertical distribution in multiple story buildings shall be made with metal conduit in fire-rated shafts.
Fiber cables running in vertical shafts shall be riser rated. Metal conduit shall extend through shafts for minimum distance of 6 inches .
Conduit which penetrates fire-rated walls, fire-rated partitions, or fire-rated floors shall be firestopped in accordance with Section
07 84 00.00 28 , FIRESTOPPING.
3.1.1.1 Pull Wire
Install pull wires in empty conduits. Pull wire shall be plastic having minimum 200-pound force tensile strength. Leave minimum 36 inches of slack at each end of pull wire.
3.1.2 Conduit Installation
Unless indicated otherwise, conceal conduit under floor slabs and within finished walls, ceilings, and floors. Keep conduit minimum 6 inches 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. Run conduits in crawl space.
3.1.2.1 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 6 inches above floor. Where no equipment connections are made, install screwdriver-operated threaded flush plugs in conduit end.
3.1.2.2 Conduit Support
Support conduit by pipe straps, wall brackets, 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. Load applied to fasteners shall not exceed one-fourth proof test load. Fasteners attached to concrete ceiling shall be vibration resistant and shock-resistant.
Holes cut to depth of more than 1 1/2 inches in reinforced concrete beams or to depth of more than 3/4 inch in concrete joints shall not cut main reinforcing bars. 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 shall be supported independently of both
(a) tie wires supporting ceiling grid system, and (b) ceiling grid system into which ceiling panels are placed. Supporting means shall not be shared between electrical raceways and mechanical piping or ducts.
Installation shall be coordinated 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. Support exposed risers in wire shafts of multistory buildings by U-clamp hangers at each floor level and at 10 foot maximum intervals. 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 2 1/2 inches 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. Support of conduit via mechanical means is required, no adhesives allowed.
3.1.2.3 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.
Avoid trapped conduits. Prevent plaster, dirt, or trash from lodging in conduits, boxes, fittings, and equipment during construction. Free clogged conduits of obstructions.
3.1.2.4 Locknuts and Bushings
Fasten conduits to sheet metal boxes and cabinets with two locknuts where required by NFPA 70 , 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. Locknuts shall have sharp edges for digging into wall of metal enclosures. Install bushings on ends of conduits, and provide insulating type where required by NFPA 70 .
3.1.3 Cable Tray Installation
Install and ground in accordance with NFPA 70 . In addition, install and ground telecommunications cable tray in accordance with EIA TIA/EIA-569-A , and TIA J-STD-607-A . Install cable trays parallel with or at right angles to ceilings, walls, and structural members. Support in accordance with manufacturer recommendations but at not more than 6 feet intervals as indicated. Contact surfaces of aluminum connections shall be coated with an antioxidant compound prior to assembly. Adjacent cable tray sections shall be bonded together by connector plates of an identical type as the cable tray sections. For grounding of cable tray system provide No. 2 AWG bare copper wire throughout cable tray system, and bond to each section, except use No. 1/0 aluminum wire if cable tray is aluminum. Terminate cable trays 10 inches from both sides of smoke and fire partitions.
Conductors run through smoke and fire partitions shall be installed in 4 inch rigid steel conduits with grounding bushings, extending 12 inches beyond each side of partitions. Seal conduit on both ends to maintain smoke and fire ratings of partitions. Penetrations shall be firestopped in accordance with Section 07 84 00.00 28 , FIRESTOPPING. 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.
Install cable trays parallel with or at right angles to ceilings, walls, and structural members. Support at maximum 6 foot intervals. In addition, install and ground telecommunications cable tray in accordance with EIA TIA/EIA-569-A , and TIA J-STD-607-A Contact surfaces of aluminum connections shall be coated with an antioxidant compound prior to assembly. Edges, fittings, and hardware shall be finished free from burrs and sharp edges. Provide No. 2 AWG bare copper wire throughout cable tray system, and bond to each section. Use No. 1/0 aluminum wire if cable tray is aluminum. Conductors that run though smoke and fire partitions shall be installed in 4 inch rigid steel conduits with grounding bushing, extending 12 inches beyond each side of partitions. Seal conduit on both ends to maintain smoke and fire ratings of partitions. 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 Telecommunications Cable Support Installation
Install open top and closed ring cable supports on 4 ft to 5 ft centers to adequately support and distribute the cable’s weight. These types of supports shall be used to support a maximum of 50 0.25 in diameter cables. Install suspended cables with at least 3 in of clear vertical space above the ceiling tiles and support channels (T-bars). Open top and closed ring cable supports shall be suspended from or attached to the structural ceiling or walls with hardware or other installation aids specifically designed to support their weight.
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 shall be 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 7 feet above floors and walkways, or when installed in hazardous areas and when specifically indicated. Boxes in other locations shall be sheet steel, except that aluminum boxes may be used with aluminum conduit, and nonmetallic boxes may be used with nonmetallic sheathed cable conduit system. Each box shall have volume required by NFPA 70 for number of conductors enclosed in box. Boxes for use in masonry-block or tile walls shall be 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 when required by fixture terminal operating temperature; fixtures shall be readily removable for 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. Threaded studs driven in by powder charge and provided with lockwashers and nuts or nail-type nylon anchors may be used in lieu of wood screws, expansion shields, or machine screws. 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 24 inches from box. When penetrating reinforced concrete members, avoid cutting reinforcing steel.
3.1.5.1 Pull Boxes
Construct of at least minimum size required by NFPA 70 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.
3.1.5.2 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, and disconnecting switches so height of operating handle at its highest position is maximum 78 inches above floor. Mount receptacles and telecommunications outlets 18 inches above finished floor, unless otherwise indicated. Wall-mounted telecommunications outlets shall be mounted at height 60 inches above finished floor. Mount other devices as indicated. Measure mounting heights of wiring devices and outlets in non-hazardous areas to center of device or outlet. Measure mounting heights of receptacle outlet boxes in the hazardous area to the bottom of the outlet box.
3.1.7 Conductor Identification
Provide conductor identification within each enclosure where tap, splice, or termination is made. For conductors No. 6 AWG and smaller diameter, color coding shall be by factory-applied, color-impregnated insulation.
For conductors No. 4 AWG and larger diameter, color coding shall be by plastic-coated, self-sticking markers; colored nylon cable ties and plates; or heat shrink-type sleeves.
3.1.7.1 Marking Strips
White or other light-colored plastic marking strips, fastened by screws to each terminal block, shall be provided for wire designations. The wire numbers shall be made with permanent ink. The marking strips shall be reversible to permit marking both sides, or two marking strips shall be furnished with each block. Marking strips shall accommodate the two sets of wire numbers. Each device to which a connection is made shall be assigned a device designation in accordance with NEMA ICS 1 and each device terminal to which a connection is made shall be marked with a distinct terminal marking corresponding to the wire designation used on the Contractor's schematic and connection diagrams. 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, additional wire and cable designations for identification of remote (external) circuits shall be provided for the Government's wire designations. 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 Electrical Penetrations
Seal openings around electrical penetrations through fire resistance-rated walls, partitions, floors, or ceilings in accordance with Section
07 84 00.00 28 , FIRESTOPPING.
3.1.9 Grounding and Bonding
Provide In accordance with NFPA 70 and NFPA 780 . Ground exposed, non-current-carrying metallic parts of electrical equipment, access flooring support system, metallic raceway systems, grounding conductor in metallic and nonmetallic raceways, telecommunications system grounds, grounding conductor of nonmetallic sheathed cables, 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 in compliance with NFPA 70 . Make ground connection to driven ground rods on exterior of building. Interconnect all grounding media in or on the structure to provide a common ground potential. This shall include lightning protection, electrical service, telecommunications system grounds, as well as underground metallic piping systems.
Interconnection to the gas line shall be made on the customer's side of the meter. Use main size lightning conductors for interconnecting these grounding systems to the lightning protection system. In addition to the requirements specified herein, provide telecommunications grounding in accordance with TIA J-STD-607-A . Where ground fault protection is employed, ensure that connection of ground and neutral does not interfere with correct operation of fault protection.
3.1.9.1 Telecommunications System
Provide telecommunications grounding in accordance with the following:
a. Telecommunications Grounding Busbars: Provide a telecommunications main grounding busbar TGB in the telecommunications entrance facility. The TMGB shall be as close to the electrical service entrance grounding connection as practicable. Provide a telecommunications grounding busbar TGB in all other telecommunications rooms and telecommunications equipment rooms. The TGB shall be as close to the telecommunications room panelboard as practicable, when equipped.
Where a panelboard for telecommunications equipment is not installed in the telecommunications room, the TGB shall be located near the backbone cabling and associated terminations. In addition, the TGB shall be placed to provide for the shortest and straightest routing of the grounding conductors. Where a panelboard for telecommunications equipment is located within the same room or space as a TGB, that panelboard’s alternating current equipment ground (ACEG) bus (when equipped) or the panelboard enclosure shall be bonded to the TMGB. Telecommunications grounding busbars shall be installed to maintain clearances as required by NFPA 70 and shall be insulated from its support. A minimum of 2 inches separation from the wall is recommended to allow access to the rear of the busbar and the mounting height shall be adjusted to accommodate overhead or underfloor cable routing.
b. 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 3 feet in length, the conductors shall be bonded to each end of the conduit using a grounding bushing or a No. 6 AWG conductor, minimum. Provide a telecommunications bonding backbone (TBB) that originates at the TMGB extends throughout the building using the telecommunications backbone pathways, and connects to the TGBs in all telecommunications rooms and equipment rooms. The TBB conductors shall be installed and protected from physical and mechanical damage. The TBB conductors should be installed without splices and routed in the shortest possible straight-line path.
The bonding conductor between a TBB and a TGB shall be continuous. Where splices are necessary, the number of splices should be a minimum and they shall be accessible and located in telecommunications spaces. Joined segments of a TBB shall be connected using exothermic welding, irreversible compression-type connectors, or equivalent. All joints shall be adequately supported and protected from damage. Whenever two or more TBBs are used within a multistory building, the TBBs shall be bonded together with a grounding equalizer (GE) at the top floor and at a minimum of every third floor in between. The TBB and GE shall not be connected to the pathway ground, except at the TMGB or the TGB.
c. Telecommunications Grounding Connections: Telecommunications grounding connections to the TMGB shall utilize listed compression two-hole lugs, exothermic welding, suitable and equivalent one hole non-twisting lugs, or other irreversible compression type connections. All metallic pathways, cabinets, and racks for telecommunications cabling and interconnecting hardware located within the same room or space as the TMGB shall be bonded to the TMGB. In a metal frame (structural steel) building, where the steel framework is readily accessible within the room; each TMGB shall be bonded to the vertical steel metal frame using a minimum No. 6 AWG conductor. Where the metal frame is external to the room and readily accessible, the metal frame shall be bonded to the TGB with a minimum No. 6 AWG conductor. When practicable because of shorter distances and, where horizontal steel members are permanently electrically bonded to vertical column members, the TMGB may be bonded to these horizontal members in lieu of the vertical column members. All connectors used for bonding to the metal frame of a building shall be listed for the intended purpose.
3.1.10 Equipment Connections
Provide power wiring for the connection of motors and control equipment under this section of the specification. Except as otherwise specifically noted or specified, automatic control wiring, control devices, and protective devices within the control circuitry are not included in this section of the specifications but shall be provided under the section specifying the associated equipment.
3.1.11 Government-Furnished Equipment
Contractor shall rough-in for Government-furnished equipment shall make connections to Government-furnished equipment to make equipment operate as intended, including providing miscellaneous items such as plugs, receptacles, wire, cable, conduit, flexible conduit, and outlet boxes or fittings.
3.1.12 Repair of Existing Work
Repair of existing work, demolition, and modification of existing electrical distribution systems shall be performed as follows:
3.1.12.1 Workmanship
Lay out work in advance. Exercise care where cutting, channeling, chasing, or drilling of floors, walls, partitions, ceilings, or other surfaces is necessary for proper installation, support, or anchorage of conduit, raceways, or other electrical work. Repair damage to buildings, piping, and equipment using skilled craftsmen of trades involved.
3.1.12.2 Removal of Existing Electrical Distribution System
Removal of existing electrical distribution system equipment shall include equipment's associated wiring, including conductors, cables, exposed conduit, surface metal raceways, boxes, and fittings, back to equipment's power source as indicated.
3.1.12.3 Continuation of Service
Maintain continuity of existing circuits of equipment to remain. Existing circuits of equipment shall remain energized. Circuits which are to remain but were disturbed during demolition shall have circuits wiring and power restored back to original condition.
3.1.13 Surge Protective Devices
Connect the surge protective devices in parallel to the power source, keeping the conductors as short and straight as practically possible.
3.2 FIELD FABRICATED…
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