TSpecs_RTA_W912P524Q1002_MeltonHill-480vAuxBoardReplacement_Amend 0002.pdf

Solicitation No. W912P524Q1002 Amendment 0002

US Army Corps Of Engineers Nashville District

480V Auxiliary Board Replacement Supply

Melton Hill Lock Clinch River Tennessee River Basin Roane County, Tennessee

Technical Specifications - Ready to Advertise (RTA) Certified Final

February 2024

THIS PAGE INTENTIONALLY LEFT BLANK

FOR DUPLEX PRINTING

480V Auxiliary Board Replacement Melton Hill Lock W912P524Q1002 RTA Oak Ridge, TN

PROJECT TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

01 20 00 11/20, CHG 2: 08/21 PRICE AND PAYMENT PROCEDURES

DIVISION 26 - ELECTRICAL

26 05 00.00 40 11/20 480-VOLT AUXILIARY BOARD REPLACEMENT

SUPPLY

26 20 00 08/19, CHG 3: 11/21 INTERIOR DISTRIBUTION SYSTEM

-- End of Project Table of Contents --

PROJECT TABLE OF CONTENTS Page 1

PROJECT TABLE OF CONTENTS Page 2

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 20 00

PRICE AND PAYMENT PROCEDURES

11/20, CHG 2: 08/21

PART 1 GENERAL

1.1 CONTRACTOR'S INVOICE AND CONTRACT PERFORMANCE STATEMENT

1.1.1 Final Invoice

1.2 BASE PAYMENT ITEMS

1.2.1 Fabrication Of Electrical Equipment

1.2.1.1 Payment

1.2.1.2 Unit of Measure

1.2.2 Panelboards

1.2.2.1 Payment

1.2.2.2 Unit of Measure

PART 2 PRODUCTS

PART 3 EXECUTION

-- End of Section Table of Contents --

SECTION 01 20 00 Page 1

SECTION 01 20 00 Page 2

SECTION 01 20 00

PRICE AND PAYMENT PROCEDURES

11/20, CHG 2: 08/21

PART 1 GENERAL

1.1 CONTRACTOR'S INVOICE AND CONTRACT PERFORMANCE STATEMENT

1.1.1 Final Invoice

a. A final invoice must be accompanied by the certification required by DFARS 252.247.7023 Transportation of Supplies by Sea, and the Contractor's Final Release. If the Contractor is incorporated, the Final Release must contain the corporate seal. An officer of the corporation must sign and the corporate secretary must certify the Final Release.

b. Final invoices not accompanied by the Contractor's Final Release will be considered incomplete and will be returned to the Contractor.

1.2 BASE PAYMENT ITEMS

Payment items for the work of this Contract are listed in the BIDDING SCHEDULE and described below. All costs for items of work, which are not specifically mentioned to be included in a particular job or unit price payment item, are included in the listed item most closely associated with the work involved. The price and payment made for each item listed constitutes full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for which separate payment is not otherwise provided.

1.2.1 Fabrication Of Electrical Equipment

1.2.1.1 Payment

Payment will be made for costs associated with procurement and delivery of Unit Switchgear, Motor Control Center, and it associated equipment.

1.2.1.2 Unit of Measure

Unit of measure: job.

1.2.2 Panelboards

1.2.2.1 Payment

Payment will be made for costs associated for procurement and delivery of the heating and lighting panelboards indicated in drawings.

1.2.2.2 Unit of Measure

Unit of measure: job.

SECTION 01 20 00 Page 3

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

Not Used

-- End of Section --

SECTION 01 20 00 Page 4

SECTION TABLE OF CONTENTS

DIVISION 26 - ELECTRICAL

SECTION 26 05 00.00 40

480-VOLT AUXILIARY BOARD REPLACEMENT SUPPLY

11/20

PART 1 GENERAL

1.1 SCOPE OF WORK

1.1.1 General

1.2 SUMMARY OF SERVICES

1.2.1 General

1.2.2 Deliverable Tasks

1.3 REFERENCES

1.4 REQUIREMENTS

1.4.1 General

1.4.2 Fundamental Performance

1.4.3 Conformance

1.4.4 Environmental Requirements

1.4.4.1 General

1.4.4.2 Wiring and Equipment

1.4.4.3 Enclosures

1.4.4.4 Corrosion Control

1.4.5 Accident Prevention

1.5 DEFINITIONS

1.6 SUBMITTALS

1.7 QUALITY CONTROL

1.7.1 Regulatory Requirements

1.7.2 Standard Products

1.8 MAINTENANCE

1.9 WARRANTY

PART 2 PRODUCTS

2.1 CIRCUIT BREAKER SIZING

2.2 EQUIPMENT

2.2.1 Low-Voltage Switchgear

2.2.2 Motor Control Center

2.2.3 Panelboards

PART 3 EXECUTION

SECTION 26 05 00.00 40 Page 1

SECTION 26 05 00.00 40 Page 2

SECTION 26 05 00.00 40

480-VOLT AUXILIARY BOARD REPLACEMENT SUPPLY

11/20

PART 1 GENERAL

1.1 SCOPE OF WORK

1.1.1 General

The Contractor shall furnish all equipment, labor, management, administration, on-site information surveys, testing, transportation, shipping and packaging, new equipment and materials necessary for the procurement of a replacement 480-Volt Auxiliary Board at Melton Hill Lock.

The 480-Volt Auxiliary Board consists of a Low-Voltage Switchgear and a Motor Control Center connected using fully enclosed busway system.

Additional items for replacement is a dedicated instrumentation relay section at the MCC referenced and two separate panelboards referred to as PNL-HC-2 and PNL-LC-5. Procurement of new replacement materials and equipment shall be in accordance with the specifications and Contract Design Drawings provided in this solicitation package.

1.2 SUMMARY OF SERVICES

1.2.1 General

The Contractor shall provide all services and materials necessary for the replacement of Motor Control Centers, Switchgear and the Panelboards, and selected electrical equipment per the government provided drawings. The Contractor shall render shop drawings, technical support, and shop fabrication/assembly services in accordance with generally accepted and currently recognized engineering best practices, procedures, and principles. The Contractor shall replace any such services not meeting the aforementioned standard at no additional cost to the Government.

The Contractor shall provide the following minimum deliverable tasks; tasks are not listed in sequential order:

1.2.2 Deliverable Tasks

Task 1 - Procure, deliver, and store Low-Voltage Switchgear to replace the existing Switchgear located in Operations Building Basement Electrical Equipment Room.

Task 2 - Procure, deliver, and store one new Motor Control Center (MCC) to replace the existing Motor Control Center located in Operations Building Basement Electrical Equipment Room.

Task 3 - Procure, deliver, and store two new Panelboards to replace a heating cabinet panelboard "PNL-HC-2" and lighting cabinet panelboard "PNL-LC-5" in the Operations Building Basement.

Task 4 - Perform site visits to Melton Hill Lock as required for field verification of existing lock drawings and to gather necessary performance, operational, and physical data to facilitate procurement of necessary mountings for equipment configuration services.

SECTION 26 05 00.00 40 Page 3

Task 5 - Furnish manufacturer's operating and maintenance manuals, (2) hard copies and (1) PDF version for the equipment furnished. Besides the basic recommended operating and maintenance data, these manuals shall also include manufacturer's name, address location, and telephone number(s) for technical point(s)-of-contact for operation, maintenance, and troubleshooting assistance.

1.3 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE Stds Dictionary (2009) IEEE Standards Dictionary: Glossary of Terms & Definitions

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

NEMA 250 (2020) Enclosures for Electrical Equipment (1000 Volts Maximum)

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 70 (2023; ERTA 4 2023) National Electrical Code

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 385-1-1 (2014) Safety and Health Requirements Manual

1.4 REQUIREMENTS

1.4.1 General

The Contractor shall ensure existing new replacement equipment has dimensions equivalent to or less than the original equipment's footprint.

1.4.2 Fundamental Performance

The new electrical equipment shall be a complete, fully operational modern replacement for the existing systems and equipment, and (1) be functionally compatible with all remaining existing equipment, (2) be functionally compatible with all new equipment furnished under this contract, (3) comprise an interchangeable and interoperable integrated system to the replacement part level, addressing both horizontal and vertical connectivity of equipment, (4) perform all operator-initiated tasks required to safely, efficiently, and effectively monitor and control lockage operation functions.

1.4.3 Conformance

As a minimum, the equipment and installation shall conform to the requirements of NFPA 70, National Electrical Code. Equipment shall meet NEMA and UL construction and rating requirements, no equivalent will be acceptable. International Electrotechnical Commission (IEC) rated

SECTION 26 05 00.00 40 Page 4 equipment shall not be considered an acceptable alternative to specified NEMA ratings.

1.4.4 Environmental Requirements

Environmental requirements that are applicable to this project during site operations are as described herein.

1.4.4.1 General

Specified materials and equipment will be subjected to moderate-to-severe moisture conditions; operate over a temperature range of 0 degrees F to 140 degrees F, and be exposed to potentially corrosive substances. Contact between dissimilar metals shall be avoided or proper treatment/protection shall be utilized to prevent the possibility of corrosion.

1.4.4.2 Wiring and Equipment

Wiring, fixtures, and equipment designated for outdoor-type usage or in damp or wet locations shall conform to Marine-grade standards. All equipment, wiring, fixtures, pushbuttons, indicating lamps, operator devices, and indicators shall be industrial-grade, heavy-duty type construction.

1.4.4.3 Enclosures

Enclosures designated for outdoor-type usage or in damp or wet locations shall be of stainless steel and conform to NEMA Type 4X standards.

Enclosures designed for indoor-type usage shall conform to NEMA Type 12 standards.

1.4.4.4 Corrosion Control

All materials and equipment specified for manufacture, fabrication, or assembly shall be corrosion-resistant or treated to render them corrosion-resistant.

1.4.5 Accident Prevention

Accident prevention requirements that are applicable to this project during site operations are as described in EM 385-1-1. Site operations include:

development of jobsite staging and storage areas, and delivery.

1.5 DEFINITIONS

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

b. The technical sections referred to herein are those specification sections that describe products, installation procedures, and equipment operations and that refer to this section for detailed description of submittal types.

1.6 SUBMITTALS

Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for information only. When used, a code following the "G" classification

SECTION 26 05 00.00 40 Page 5 identifies the office that will review the submittal for the Government.

Submit the following in accordance with Section 01 33 00 SUBMITTAL

PROCEDURES:

SD-10 Operation and Maintenance Data

Operation And Maintenance Manuals; G

SD-11 Closeout Submittals

Warranty

1.7 QUALITY CONTROL

1.7.1 Regulatory Requirements

In each of the publications referred to herein, consider the advisory provisions to be mandatory, as though the word, "shall" 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. Ensure equipment, materials, installation, and workmanship are in accordance with the mandatory and advisory provisions of NFPA 70, unless more stringent requirements are specified or indicated.

1.7.2 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. Provide products which have been in satisfactory commercial or industrial use for 2 years prior to bid opening. Ensure the 2-year period includes applications of equipment and materials under similar circumstances and of similar size. Ensure the product has been on sale on the commercial market through advertisements, manufacturers' catalogs, or brochures during the 2-year period. Where two or more items of the same class of equipment are required, these items must be products of a single manufacturer.

1.8 MAINTENANCE

Submit operation and maintenance data in accordance as specified herein.

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. In addition to the basic recommended operating and maintenance data, these manuals shall also include manufacturer's name, address location, and telephone number(s) for technical point(s)-of-contact for operation, maintenance, and troubleshooting assistance.

1.9 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.

SECTION 26 05 00.00 40 Page 6

PART 2 PRODUCTS

2.1 CIRCUIT BREAKER SIZING

Provide circuit breaker sized and rated with the minimum values shown in the following table:

COMPARTMENT CIRCUIT

DESIGNATION

BREAKER

FRAME

BREAKER

AMPS

INTERRUPTING

RATING

CIRCUIT

VOLTAGE

1A INSTRUMENTS - - - -

1B INCOMING FEEDER

BREAKER

800 A 300 A 65 kA 480V

1C SPARE 800 A 300 A 65 kA 480V

1D FUTURE 600 A BKR - - - -

2A INSTRUMENTS - - - -

2B SPARE BREAKER 800 A 300 A 65 kA 480V

2C WASHDOWN PUMP 800 A 225 A 65 kA 480V

2D GATE SPRAY PUMP 800 A 100 A 65 kA 480V

3A1 AC UNIT 100 A 50 A 65 kA 480V

3A2 TRANSFORMER FOR

LC-1

100 A 20 A 65 kA 480V

3B SPARE 100 A 50 A 65 kA 480V

3C FRESH AIR HEATER 100 A 30 A 65 kA 480V

3D SERVICE WATER

PUMP

100 A 50 A 65 kA 480V

3E-1 TRANSFORMER FOR

LC-3

100 A 50 A 65 kA 480V

3E-2 TRANSFORMER LC-4 100 A 50 A 65 kA 480V

4A-1 UPSTREAM DAVIT 100 A 20 A 65 kA 480V

4A-2 DOWNSTREAM DAVIT 100 A 20 A 65 kA 480V

4B-1 SPARE 100 A 20 A 65 kA 480V

4B-2 SPARE 100 A 70 A 65 kA 480V

4C TRANSFORMER

BREAKER PANEL

100 A 20 A 65 kA 480V

5A LOWER PARKING

LOT RECEPTACLE

100 A 100 A 65 kA 480V

5B SPARE

SECTION 26 05 00.00 40 Page 7

COMPARTMENT CIRCUIT

DESIGNATION

BREAKER

FRAME

BREAKER

AMPS

INTERRUPTING

RATING

CIRCUIT

VOLTAGE

5C TOW HAULAGE UNIT 100 A 100 A 65 kA 480V

6A HYDRAULIC/EXHAUST

FAN

100 A 20 A 65 kA 480V

6B ELECTRICAL/EXHAUST

FAN

100 A 20 A 65 kA 480V

6C SHOP/EXHAUST FAN 100 A 20 A 65 kA 480V

6D STATION

COMPRESSOR

100 A 70 A 65 kA 480V

7A UPSTREAM

LANDWALL

MACHINERY

100 A 100 A 65 kA 480V

7B DOWNSTREAM

LANDWALL

MACHINERY

100 A 100 A 65 kA 480V

7C RIVERWALL

HYDRAULIC OIL

PUMP 1

100 A 70 A 65 kA 480V

7D RIVERWALL

HYDRAULIC OIL

PUMP 2

100 A 100 A 65 kA 480V

8A UPSTREAM

RIVERWALL

MACHINERY

100 A 100 A 65 kA 480V

8B SPARE OIL PUMP 1 100 A 70 A 65 kA 480V

8C SPARE OIL PUMP 2 100 A 100 A 65 kA 480V

9A LIGHTING & HEAT

TRANSFORMER

225 A 150 A 65 kA 480V

9B DOWNSTREAM RIVER

MACHINERY

100 A 100 A 65 kA 480V

9C LANDWALL

HYDRAULIC OIL

PUMP 1

100 A 70 A 65 kA 480V

9D LANDWALL

HYDRAULIC OIL

PUMP 2

100 A 100 A 65 kA 480V

10A RIVERWALL LED

STREET LIGHTS

100 A 30 A 65 kA 480V

10B RELAY LED LIGHTS - - - -

10C LANDWALL LED

STREET LIGHTS

100 A 30 A 65 kA 480V

10D SHOP

DISTRIBUTION

CABINET

225 A 125 A 65 kA 480V

10E 1 TON JIB CRANE 100 A 50 A 65 kA 480V

SECTION 26 05 00.00 40 Page 8

COMPARTMENT CIRCUIT

DESIGNATION

BREAKER

FRAME

BREAKER

AMPS

INTERRUPTING

RATING

CIRCUIT

VOLTAGE

11 RELAY - - - -

2.2 EQUIPMENT

Provide the standard cataloged materials and equipment of manufacturers regularly engaged in the manufacture of the products. For material, equipment, and fixture lists submittals, show manufacturer's style or catalog numbers, specification and drawing reference numbers, warranty information, and fabrication site.

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

a. NEMA 250 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 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: ANSI Light Gray, and equipment located outdoors: ANSI Light Gray.

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

2.2.1 Low-Voltage Switchgear

New 1ow-voltage switchgear shall be provided as specified in Section

26 23 00 LOW-VOLTAGE SWITCHGEAR.

2.2.2 Motor Control Center

New Motor Control Centers shall be provided as specified in Section

26 24 19.00 40 MOTOR CONTROL CENTERS

2.2.3 Panelboards

New panelboards shall be provided as specified in Section 26 20 00 INTERIOR

DISTRIBUTION SYSTEM

PART 3 EXECUTION

Not Used.

SECTION 26 05 00.00 40 Page 9

SECTION 26 05 00.00 40 Page 10

SECTION TABLE OF CONTENTS

DIVISION 26 - ELECTRICAL

SECTION 26 20 00

INTERIOR DISTRIBUTION SYSTEM

08/19, CHG 3: 11/21

PART 1 GENERAL

1.1 REFERENCES

1.2 DEFINITIONS

1.3 SUBMITTALS

1.4 QUALITY ASSURANCE

1.4.1 Regulatory Requirements

1.4.2 Standard Products

1.4.2.1 Material and Equipment Manufacturing Date

1.5 MAINTENANCE

1.5.1 Electrical Systems

1.6 WARRANTY

PART 2 PRODUCTS

2.1 MATERIALS AND EQUIPMENT

2.2 BUSWAY

2.2.1 Feeder Busways

2.3 PANELBOARDS

2.3.1 Enclosure

2.3.2 Panelboard Buses

2.3.2.1 Panelboard Neutrals for Non-Linear Loads

2.3.3 Circuit Breakers

2.3.3.1 Multipole Breakers

2.3.3.2 Circuit Breaker With Ground-Fault Circuit Interrupter

2.3.3.3 Arc-Fault Circuit Interrupters

2.3.4 Circuit Breaker and Space Quantities

2.3.4.1 Panelboard PNL HC-2

2.3.4.2 Panelboard PNL LC-5

2.3.4.3 Motor Control Center Panelboard

2.4 MOTOR CONTROL CENTERS

2.5 LOCKOUT REQUIREMENTS

2.6 MANUFACTURER'S NAMEPLATE

2.7 FIELD FABRICATED NAMEPLATES

2.8 FACTORY APPLIED FINISH

PART 3 EXECUTION

3.1 FIELD FABRICATED NAMEPLATE MOUNTING

SECTION 26 20 00 Page 1

SECTION 26 20 00 Page 2

SECTION 26 20 00

INTERIOR DISTRIBUTION SYSTEM

08/19, CHG 3: 11/21

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 within the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM D709 (2017) Standard Specification for Laminated Thermosetting Materials

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE 100 (2000; Archived) The Authoritative Dictionary of IEEE Standards Terms

NATIONAL ELECTRICAL CONTRACTORS ASSOCIATION (NECA)

NECA NEIS 1 (2015) Standard for Good Workmanship in Electrical Construction

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

NEMA 250 (2020) Enclosures for Electrical Equipment (1000 Volts Maximum)

NEMA BU 1.1 (2010) General Instructions for Proper Handling, Installation, Operation and Maintenance of Busway Rated 600 V or Less

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 70 (2020; ERTA 20-1 2020; ERTA 20-2 2020;

ERTA 20-3 2020; TIA 20-1; TIA 20-2; TIA

20-3; TIA 20-4; TIA 20-5; TIA 20-6; TIA

20-7; TIA 20-8; TIA 20-9; TIA 20-10; TIA

20-11; TIA 20-12; TIA 20-13; TIA 20-14;

TIA 20-15; TIA 20-16; ERTA 20-4 2022)

National Electrical Code

NFPA 70E (2021) Standard for Electrical Safety in the Workplace

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

29 CFR 1910.147 The Control of Hazardous Energy (Lock Out/Tag Out)

29 CFR 1910.303 Electrical, General

SECTION 26 20 00 Page 3

UNDERWRITERS LABORATORIES (UL)

UL 50 (2015) UL Standard for Safety Enclosures for Electrical Equipment, Non-Environmental Considerations

UL 67 (2018; Reprint Jul 2020) UL Standard for Safety Panelboards

UL 489 (2016; Rev 2019) UL Standard for Safety Molded-Case Circuit Breakers, Molded-Case Switches and Circuit-Breaker Enclosures

UL 857 (2009; Reprint Apr 2021) UL Standard for Safety Busways

UL 869A (2006; Reprint Jun 2020) Reference Standard for Service Equipment

UL 943 (2016; Reprint Feb 2018) UL Standard for Safety Ground-Fault Circuit-Interrupters

UL 1699 (2017; Reprint Feb 2022) UL Standard for Safety Arc-Fault Circuit-Interrupters

1.2 DEFINITIONS

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

IEEE 100.

1.3 SUBMITTALS

Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government.

Submit the following in accordance with Section 01 33 00 SUBMITTAL

PROCEDURES:

SD-02 Shop Drawings

Panelboards; G

Busway; G

Motor Control Centers; G

SD-03 Product Data

Circuit Breakers; G

SD-10 Operation and Maintenance Data

Electrical Systems, Data Package 5; G

SECTION 26 20 00 Page 4

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, "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 NFPA 70 unless more stringent requirements are specified or indicated. NECA NEIS 1 shall be considered the minimum standard for workmanship.

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 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 data in accordance as specified herein.

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).

c. Manufacturer's 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.

SECTION 26 20 00 Page 5

PART 2 PRODUCTS

2.1 MATERIALS AND EQUIPMENT

As a minimum, meet requirements of UL, where UL standards are established for those items, and requirements of NFPA 70 for all materials, equipment, and devices.

2.2 BUSWAY

NEMA BU 1.1, UL 857. Provide the following:

a. Buses: copper.

b. Busways: rated 600 volts, 600 continuous current amperes, three-phase, three-wire, and include integral or internal ground bus.

c. Short circuit rating: as indicated.

d. Busway systems: suitable for use indoors.

e. Enclosures: steel.

f. Hardware: plated or otherwise protected to resist corrosion.

g. Joints: one-bolt type with through-bolts, which can be checked for tightness without de-energizing system.

h. Maximum hot spot temperature rise at any point in busway at continuous rated load: do not exceed 55 degrees C above maximum ambient temperature of 40 degrees C in any position.

i. Internal barriers to prevent movement of superheated gases.

j. Coordinate proper voltage phasing of entire bus duct system, for example where busway interfaces with transformers, switchgear, switchboards, motor control centers, and other system components.

2.2.1 Feeder Busways

Provide unventilated, totally enclosed low-impedance busway. Provide bus bars fully covered with insulating material, except at stabs. Provide an entirely polarized busway system.

2.3 PANELBOARDS

The electrical characteristics of the new panelboards are the following:

a. PNL-HC-2: 480 volts, 3-Phase, 4-wire with main bus rating of 225 amperes.

b. PNL-LC-5: 208/120 volts, 3-Phase, 4-wire with main bus rating of 225 amperes.

c. Motor Control Center panelboard: 240V, 1-Phase, 2-wire with main bus rating of 100 amperes.

Provide panelboards in the Operation Buildings Basement for PNL-HC-2, SECTION 26 20 00 Page 6

PNL-LC-5, and motor control center panelboards in accordance with the following:

a. UL 67 and UL 50 having a short-circuit current rating of 10,000 amperes symmetrical minimum for voltages 240 V and below and of 14,000 amperes symmetrical minimum for 480 V.

b. Panelboards for use as service disconnecting means: additionally conform to UL 869A.

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.

e. "Specific breaker placement" is required in panelboards to match the breaker placement indicated in the panelboard schedule on the design drawings. If it is not possible to match "specific breaker placement" during construction, obtain Government approval prior to device installation.

f. Use of "Subfeed Breakers" is not acceptable.

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

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. Panelboards: listed and labeled for their intended use.

n. Panelboard nameplates: provided in accordance with paragraph FIELD

FABRICATED NAMEPLATES.

2.3.1 Enclosure

Provide panelboard enclosure in accordance with the following:

a. UL 50.

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

c. Cabinets: painted in accordance with paragraph PAINTING.

d. Outdoor cabinets: NEMA 4x with a removable steel plate 1/4 inch thick in the bottom for field drilling for conduit connections.

SECTION 26 20 00 Page 7

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 1/8 inch.

g. Holes: 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.

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 latch.

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.

2.3.2 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, 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.

2.3.2.1 Panelboard Neutrals for Non-Linear Loads

Provide in accordance with the following:.

a. UL listed, with panelboard type specifically UL heat rise tested for use on non-linear loads.

b. Panelboard: heat rise tested in accordance with UL 67, except with the neutral assembly installed and carrying 200 percent of the phase bus current during testing.

c. Verification of the testing procedure: provided upon request.

d. Two neutral assemblies paralleled together with cable is not acceptable.

e. Nameplates for panelboard rated for use on non-linear loads: marked "SUITABLE FOR NON-LINEAR LOADS" and in accordance with paragraph FIELD

FABRICATED NAMEPLATES.

f. Provide a neutral label with instructions for wiring the neutral of panelboards rated for use on non-linear loads.

2.3.3 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 will be mounted. Breaker terminals: UL listed as suitable

SECTION 26 20 00 Page 8 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.

2.3.3.1 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.

2.3.3.2 Circuit Breaker With Ground-Fault Circuit Interrupter

UL 943 and NFPA 70. Provide with auto-monitoring (self-test) and lockout features, "push-to-test" button, visible indication of tripped condition, and ability to detect and trip when current imbalance is 6 milliamperes or higher per requirements of UL 943 for Class A ground-fault circuit interrupter devices.

2.3.3.3 Arc-Fault Circuit Interrupters

UL 489, UL 1699 and NFPA 70. Molded case circuit breakers: rated as indicated. Two pole arc-fault circuit-interrupters: rated 120/240 volts.

The provision of (two) one pole circuit breakers for shared neutral circuits in lieu of (one) two pole circuit breaker is unacceptable.Provide with "push-to-test" button.

2.3.4 Circuit Breaker and Space Quantities

Provide each panelboard with minimum number of circuits specified. Where panelboards exceed the number specified provide covers for open available slots and spaces.

2.3.4.1 Panelboard PNL HC-2

Provide panelboard PNL-HC-2 with a minimum 24 circuit spaces. Equip panelboard with eight 3-pole circuit breakers. Select size and rating of each circuit breaker as indicated.

2.3.4.2 Panelboard PNL LC-5

Provide panelboard PNL-LC-5 with a minimum 40 circuit spaces. Equip panelboard with twenty 1-pole circuit breakers and ten 2-pole circuit breakers. Select size and rating of each circuit breaker as indicated.

2.3.4.3 Motor Control Center Panelboard

Provide motor control center panelboard with a minimum of 32 circuit spaces. Equip panelboard with sixteen 2-pole circuit breakers each rated to trip at 20 amperes.

2.4 MOTOR CONTROL CENTERS

Provide Motor Control Centers meeting the requirements of Section

26 24 19.00 40 MOTOR CONTROL CENTERS.

2.5 LOCKOUT REQUIREMENTS

Provide circuit breakers, disconnecting means, and other devices that are

SECTION 26 20 00 Page 9 electrical energy-isolating capable of being locked out for machines and other equipment to prevent unexpected startup or release of stored energy in accordance with 29 CFR 1910.147, NFPA 70E and 29 CFR 1910.303. Comply with requirements of Division 23, "Mechanical" for mechanical isolation of machines and other equipment.

2.6 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.

2.7 FIELD FABRICATED NAMEPLATES

Provide field fabricated nameplates in accordance with the following:

a. ASTM D709.

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

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

d. Nameplates: melamine plastic, 0.125 inch 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: one by 2.5 inches.

h. Lettering size and style: a minimum of 0.25 inch high normal block style.

2.8 FACTORY APPLIED FINISH

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

a. NEMA 250 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 corrosion-resisting paint in accordance with the manufacturer's standard practice.

e. Exterior surfaces: primed, filled where necessary, and given not less

SECTION 26 20 00 Page 10 than two coats baked enamel with semigloss finish.

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

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

PART 3 EXECUTION

3.1 FIELD FABRICATED NAMEPLATE MOUNTING

Provide number, location, and letter designation of nameplates as indicated. Fasten nameplates to the device with a minimum of two sheet-metal screws or two rivets. Each new nameplate shall be named as found on original electrical equipment. For new circuit breakers no longer feeding an existing load designate the corresponding nameplate to say the word "SPARE".

SECTION 26 20 00 Page 11

SECTION 26 20 00 Page 12

1.4.5 Accident Prevention

PART 3 EXECUTION

1.6 WARRANTY