W9120523R0005_TSPECS_BAR SWITCHYARD DISCONNECTS_Amendment 0001_16MAY23.pdf

Switchyard Disconnects Barkley Powerhouse W912P523R0005 Amendment 0001 Kuttawa, KY

PROJECT TABLE OF CONTENTS

DI VI SI ON 01 - GENERAL REQUI REMENTS

01 00 00 GENERAL REQUIREMENTS

01 20 00 PRICE AND PAYMENT PROCEDURES

01 33 00 SUBMITTAL PROCEDURES

01 35 50 PROJECT SITE SECURITY AND AT/OPSEC PROCEDURES

DI VI SI ON 26 - ELECTRI CAL

26 11 14.00 10 MAIN ELECTRIC SUPPLY STATION AND SUBSTATION

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SECTION TABLE OF CONTENTS

DIVISION 26 - ELECTRICAL

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MAIN ELECTRIC SUPPLY STATION AND SUBSTATION

PART 1 GENERAL

1.1 REFERENCES

1.2 PROJECT DESCRIPTION

1.2.1 Scope

1.2.2 Service Conditions

1.2.3 Shop Drawings

1.3 SUBMITTALS

1.4 EXTRA MATERIALS

PART 2 PRODUCTS

2.1 MATERIALS AND EQUIPMENT

2.2 NAMEPLATES

2.2.1 General

2.3 CORROSION PROTECTION

2.3.1 Ferrous Metal Materials

2.3.1.1 Hardware

2.3.1.2 Equipment

2.4 INCOMING SWITCHING EQUIPMENT

2.4.1 Line Switches and Bus Sectionalizers

2.4.1.1 Ratings

2.4.1.2 Group-Operated Line Switches and Bus Sectionalizers

2.4.1.2.1 Disconnecting Type, Air-Insulated

2.4.1.2.2 Manually-Operated Type

2.4.1.2.2.1 Auxiliary Switches

2.4.1.2.3 Motor-Operated Type

2.4.1.2.3.1 Motorized Switch Operators

2.4.1.2.3.1.1 Operation

2.4.1.2.3.1.2 Operating Mechanism Cabinet

2.5 CABINETS AND ENCLOSURES

2.6 Spare Parts (Option 6)

2.7 MISCELLANEOUS

2.7.1 Low-Voltage Power Circuit Breakers

2.7.1.1 Molded-Case Circuit Breakers

2.7.2 Hardware

2.8 FACTORY TESTS

2.8.1 High-Voltage Air Switches

2.8.2 Factory Test Submittal Package

PART 3 EXECUTION

3.1 OPERATION AND MAINTENANCE MANUALS

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MAIN ELECTRIC SUPPLY STATION AND SUBSTATION

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 A123/A123M (2017) Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

ASTM A153/A153M (2016a) Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware

ASTM B117 (2019) Standard Practice for Operating Salt Spray (Fog) Apparatus

ASTM D1654 (2008; R 2016; E 2017) Standard Test Method for Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE C37.1 (2007) Standard for Supervisory Control, Data Acquisition (SCADA) and Automatic Systems

IEEE C37.30.1 (2011)Standard Requirements for AC High-Voltage Air Switches Rated Above 1000 V

IEEE C37.41 (2016; Corr 2017) Design Tests for High-Voltage (>1000 V) Fuses and Accessories

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

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

UNDERWRITERS LABORATORIES (UL)

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

UL 489 (2016; Rev 2019) UL Standard for Safety

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Molded-Case Circuit Breakers, Molded-Case Switches and Circuit-Breaker Enclosures

1.2 PROJECT DESCRIPTION

1.2.1 Scope

This specification section applies to the equipment and parts required to replace the high voltage disconnect switches in the Barkley Powerplant switchyard. The replacement will upgrade all disconnects switches to 2000 amps. The section covers both manual- and motor-operated disconnects. The language covers base and optional items; see the bid schedule for which items are optional.

1.2.2 Service Conditions

Items provided under this section must be specifically suitable for the following service conditions.

Altitude 3300 feet

Ambient Temperature -22 to 104 degrees F

Frequency 60 Hz

Wind Velocity 80 mph

1.2.3 Shop Drawings

Submit shop drawings consisting of equipment drawings, illustrations, schedules, instructions, diagrams, and other information necessary to complete the installation.

Show on the shop drawings the ratings of items and how the components of an item are assembled, function together, and their final installed configuration. Data and drawings for component parts of an item or system must be coordinated and submitted as a unit. Shop drawings must show physical arrangement, construction details, connections, finishes, materials used in fabrication, physical dimensions, electrical characteristics, mounting details, and equipment weight. Drawings must be drawn to scale and dimensioned. Optional items must be clearly identified as included or excluded.

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

Shop Drawings; G

SD-03 Product Data

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Nameplates; G

Materials and Equipment; G

Line Switches And Bus Sectionalizers; G

SD-06 Test Reports

Factory Tests; G

SD-07 Certificates

Materials and Equipment; G

SD-10 Operation and Maintenance Data

Operation and Maintenance Manuals; G

1.4 EXTRA MATERIALS

Provide two complete sets of all special tools required for maintenance, complete with a suitable tool box. Special tools are those that only the manufacturer provides, for special purposes (to operate, adjust, or maintain special parts).

PART 2 PRODUCTS

2.1 MATERIALS AND EQUIPMENT

Provide materials and equipment which are the standard product of a manufacturer regularly engaged in the manufacture of the product and that essentially duplicate items that have been in satisfactory use for at least 2 years prior to bid opening.

a. Submit a complete itemized listing of equipment and materials proposed for incorporation into the work. Each entry must include an item number, the quantity of items proposed, and the name of the manufacturer of each such item. Products must conform to the following requirements. Items of the same classification must be identical including equipment, assemblies, parts, and components.

b. Where materials or equipment are specified to conform to the standards of the Underwriters Laboratories, Inc., (UL) or to be constructed or tested, or both, in accordance with the standards of the American National Standards Institute (ANSI), the Institute of Electrical and Electronics Engineers (IEEE), or the National Electrical Manufacturers Association (NEMA), submit proof that the items provided under this section of the specifications conform to such requirements.

c. The label of, or listing by, UL will be acceptable evidence that the items conform thereto. Either a certification or a published catalog specification data statement, to the effect that the item is in accordance with the referenced ANSI or IEEE standard, will be acceptable evidence that the item conforms thereto. A similar certification or published catalog specification data statement to the effect that the item is in accordance with the referenced NEMA standard, by a company listed as a member company of NEMA, will be acceptable evidence that the item conforms thereto.

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d. In lieu of such certification or published data, the Contractor may submit a certificate from a recognized testing agency equipped and competent to perform such services, stating that the items have been tested and that they conform to the requirements listed, including methods of testing of the specified agencies. Compliance with above-named requirements does not relieve the Contractor from compliance with any other requirements of the specifications.

2.2 NAMEPLATES

Submit data composed of catalog cuts, brochures, circulars, specifications, product data, and printed information in sufficient detail and scope to verify compliance with the requirements of the contract documents.

2.2.1 General

Each major component of this specification must have the manufacturer's name, address, type or style, model or serial number, and catalog number on a nameplate securely attached to the equipment. Nameplates must be made of non-corrosive metal.

2.3 CORROSION PROTECTION

2.3.1 Ferrous Metal Materials

2.3.1.1 Hardware

Ferrous metal hardware including mounting brackets, if provided, must be hot-dip galvanized in accordance with ASTM A153/A153M and ASTM A123/A123M .

2.3.1.2 Equipment

Equipment and component items must be provided with corrosion-resistant finishes which must withstand 120 hours of exposure to the salt spray test specified in ASTM B117 without loss of paint or release of adhesion of the paint primer coat to the metal surface in excess of 1/16 inch from the test mark. The scribed test mark and test evaluation must be in accordance with ASTM D1654 with a rating of not less than 7 in accordance with TABLE 1, (procedure A). Cut edges or otherwise damaged surfaces of hot-dip galvanized sheet steel or mill galvanized sheet steel must be coated with a zinc rich paint conforming to the manufacturer's standard.

2.4 INCOMING SWITCHING EQUIPMENT

Incoming line switching equipment must be of the outdoor weatherproof type. Operating characteristics and ratings of incoming line switching equipment must be as indicated.

2.4.1 Line Switches and Bus Sectionalizers

Provide the following equipment in the quantities indicated:

161kV Underhung, Group-Operated Line Switch with Motor Operator: 6

161kV Underhung, Group-Operated Line Switch with Manual Operator: 20

161kV Upright-Mounted, Group-Operated Bus Sectionalizer with Motor Operator: 2

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15kV Upright-Mounted, Group-Operated Line Switch with Manual Operator:

See the following reference drawings for existing equipment dimensions, connection bolt patterns, and mounting bracket drill patterns:

161kV Underhung Group-Operated Line Switch: 1-18000-1

161kV Upright-mounted, Group-Operated Bus Sectionalizer: 1-18007-3

15kV Upright-mounted, Group-Operated Line Switch: 1-20603-0

2.4.1.1 Ratings

Ratings at 60 Hz must be in accordance with IEEE C37.30.1 .

161kV equipment shall be rated as follows:

Nominal voltage 161kV

Rated maximum voltage 170kV

3-Second short time current carrying capacity 63kA

Peak withstand current 164kA

Rated continuous current (kA) 2000A

BIL 750kV

Ice Breaking 3/4 inch

15kV equipment shall be rated as follows:

Nominal voltage 15kV

Rated maximum voltage 15.5kV

3-Second short time current carrying capacity 63kA

Peak withstand current 164kA

Rated continuous current (kA) 2000A

BIL 110kV

Ice Breaking 3/4 inch

2.4.1.2 Group-Operated Line Switches and Bus Sectionalizers

Group-operated line switches must be air-insulated with manual or motor -type operators, as specified. Group-operated line switches must comply with IEEE C37.30.1 , and must be three-pole, single-throw, provided with a

SECTION 26 11 14.00 10 Page 7 mechanism which opens the three phases simultaneously.

2.4.1.2.1 Disconnecting Type, Air-Insulated

Air-insulated switches must be of the vertical-break type for horizontal upright or horizontal underhung mounting, as specified. Contact surfaces must be silver. The switching capability required must be of the disconnecting type. Switches must be provided with replaceable contacts, quick-break arc horns, and other moving parts which have a limited life expectancy. All switches must use serviceable bearings. A permanent warning sign having letters at least 2 inches high and reading as follows:

"WARNING - DISCONNECTING SWITCH - DO NOT OPEN UNDER LOAD" must be mounted on the switch operating mechanism.

The physical dimensions, mounting patterns, and style and location of the electrical connections of the air-insulated switches must be identical to those provided in the reference drawings; in the event that the switches differ in any of these characteristics, adapter plates and/or interconnections with matching electrical characteristics that facilitate the installation of the switches without modification to the existing superstructure or buswork must be provided. Supplied switches must be supplied as complete assemblies, with 2" O.D. I.P.S. operating/drive pipe sufficient for the heights indicated in the reference drawings, intermediate support bearings and supports, if required, and outboard bearing/universal joints and supports to match original installation depicted in reference drawings.

2.4.1.2.2 Manually-Operated Type

Manual operators must be of the wormgear type and require no more than four revolutions to fully operate the switch. Position indicators made of non-corrosive metal material. Insulation of the switch operating mechanism must include both insulated interphase rod sections and the insulated vertical shaft. The operating shaft or operator must be clearly and permanently marked to indicate continuously the positions of the switch.

Manually operated switches must be compatible with existing Kirk interlock safety lockout system. See reference drawings 3-5048-2 and 3-6033-0 for existing manually operated disconnect installations. See reference drawings 1-5076-5 and 2-2318-0 for Kirk interlock details. Optionally, provide new locking plates compatible with existing Kirk lock cylinders if switches are incompatible with existing brackets.

See 2-7256-2 and 1-18004-1 for existing manual operator bolt pattern and mounting bracket; provide mounting brackets if manual operator is not compatible with existing bolt pattern.

2.4.1.2.2.1 Auxiliary Switches

Provide position indicating (open/closed) auxiliary switches for manually-operated switches. Auxiliary switches must have a minimum of four normally open and four normally closed contacts; contacts shall be rated for 2 amps at 125 VDC.

See reference drawings 2-6819-5 and 1-18018-2 for existing auxiliary switches and mounting brackets.

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2.4.1.2.3 Motor-Operated Type

See reference drawings 3-5051-2 and 3-3049-1 for details of existing 161 kV motor-operated line switches and bus sectionalizers, respectively. See reference drawings 4-778-13 and 2-7404-0 for existing operator details and wiring diagrams. Operators must be compatible with all functions of the existing installation.

See drawing 1-18010-2 for existing motorized switch operator mounting details; provide mounting brackets if motor operator is not compatible with existing bolt pattern.

2.4.1.2.3.1 Motorized Switch Operators

Motor operators must be 125-volt dc, gear-coupled motor operators, with a manual operating mechanism. Opening and closing operating time must be not more than 10 seconds for each operation. Operators must be configured so that the switch actuator is padlockable.

2.4.1.2.3.1.1 Operation

The operating mechanism must permit both manual and electrical operation of the switch at its operating mechanism cabinet, and electrical operation by the indicated remote control circuitry. The operating shaft or operator cabinet must be clearly and permanently marked to indicate continuously the positions of the switch. An externally operable decoupler must be provided at or near the point of entrance of the shaft into its operator housing so as to permit disengagement of the shaft for inspection, tests, maintenance, or repair of equipment located within the operator enclosure. Systems, components, and equipment must conform to the requirements and recommendations of IEEE C37.1 .

2.4.1.2.3.1.2 Operating Mechanism Cabinet

A NEMA 250 type 4X enclosure complying with paragraph CABINETS AND ENCLOSURES must be provided for motor-operated line switches and sectionalizers. The electrical devices listed below must be rated for the application and must be suitable for the available low-voltage alternating or direct current, specified. Unless otherwise noted, manufacturer's standard devices for the rating specified must be provided and must include the following:

a. "Trip" and "Close" pushbuttons or switch and position indication lights.

b. Shaft travel limit switches and any required safety devices.

c. A light connected to a cabinet door-actuated switch, so that the light is energized only when doors are open.

d. A heater continuously energized to prevent condensation within the cabinet over an ambient temperature range of minus 20 to 104 degrees F at 90 percent relative humidity and connected to a cabinet door-actuated switch, so that the heater is de-energized when doors are open. Heater is to be powered by a 120-volt ac circuit and breaker independent of the 125-volt dc circuit. High-temperature thermal protection must be included.

e. A motor control contactor, with relays, solenoids, and any other

SECTION 26 11 14.00 10 Page 9 control devices required.

f. Necessary motor-alarm and interlock switches.

g. Molded-case circuit breakers suitable for the operating voltage for control, heater, and light circuits.

h. A minimum of eight spare motor operator auxiliary contacts, four normally open and four normally closed, wired to an interconnection terminal block.

i. An interconnection terminal block wired to permit remote open and close operations of the switch and for other required exterior connections.

j. A local-remote selector switch and position indication lights.

k. Local/Remote operation selector switch.

2.5 CABINETS AND ENCLOSURES

Cabinets for operators must comply with NEMA 250 and must be of stainless steel, must be provided with hinged doors, and must be suitable for outdoor installation. Thickness of metal and outdoor construction must be in accordance with UL 50 .

2.6 Spare Parts (Option 6)

Provide the following spare parts:

1. One complete motorized operator assembly, including motor.

2. Stationary contact fingers/jaws: 2 sets for 161kV disconnects, 1 set for 15kV disconnects.

3. Blade contact/tip: 3 sets for 161kV disconnects, 1 set for 15kV disconnects.

4. Complete blade assembly, including contact/tip: 3 for 161kV disconnects, 1 for 15kV disconnects.

5. Insulator stacks: 1 of each style and/or height used on any disconnect covered by this contract.

6. Auxiliary position switches: 2

7. Manual operating device: 2. If the 161kV and 15kV disconnects use different styles/models of manual disconnects, then the total quantity of 2 shall include one of each type. If they utilize the same model, the both spares shall be of that type.

8. MOD electrical motor: 1

9. All electrical parts in the MOD enclosure (terminal boards, contacts, push buttons, switches, etc.): 2 sets

10. If bearings are serviceable, or are located in a "housing" that can be swapped out: 3 sets for 161kV disconnects, 1 set for 15kV disconnects.

In the above list, a 'set' refers to enough parts to service all three phases of a disconnect.

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2.7 MISCELLANEOUS

2.7.1 Low-Voltage Power Circuit Breakers

2.7.1.1 Molded-Case Circuit Breakers

UL 489 and UL 489 .

2.7.2 Hardware

Ferrous metal threaded items must comply with ASTM A153/A153M and miscellaneous nonthreaded items must comply with ASTM A123/A123M . Other equivalent protective treatment, as required by ASTM A123/A123M or ASTM A153/A153M , or ferrous metals designed to meet ASTM Standards covering corrosion-resisting steel, will be permitted if approved in writing.

2.8 FACTORY TESTS

Factory tests must be performed, as follows, in accordance with the applicable publications and with other requirements of these specifications. The Contracting Officer must be notified at least 10 days before the equipment is ready for testing. The Contracting Officer reserves the right to witness the tests.

2.8.1 High-Voltage Air Switches

Manufacturer's standard tests in accordance with IEEE C37.30.1 and

IEEE C37.41 .

2.8.2 Factory Test Submittal Package

Electronically submit the information described below:

a. A list of all equipment used, with calibration certifications.

b. A copy of all measurements taken.

c. The dates of testing.

d. The equipment and values to be verified.

e. The condition specified for the test.

f. The test results, signed and dated.

g. A description of all adjustments made.

PART 3 EXECUTION

3.1 OPERATION AND MAINTENANCE MANUALS

Electronically submit operation and maintenance manuals a minimum of 30 days before delivery and include 2 printed copies, bound in 3 ring binders, with product delivery. Manuals must including assembly, installation, operation and maintenance instructions, spare parts data that provides catalog order numbers, and a recommended list of spare parts to be stocked.

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2.7.2 Hardware