TechSpecs_-_BAR_L_Switches_and_Voltage_Transformer.pdf

Motor Operated Disconnects and Outdoor Voltage Transformers

PART 1 GENERAL

1.1 SUMMARY

This section covers the technical specifications to perform all work required to supply Barkley Powerhouse Motor Operated Disconnect Switches and Outdoor Voltage Transformers. The work described within these specifications includes to the following:

1.2 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.

AMERICAN SOCIETY OF CIVIL ENGINEERS (ASCE)

ASCE 7-10 (2010; Change 2010; Change 2011) Minimum Design Loads for Buildings and Other Structures

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

ANSI C29.1 (1988; R2002) Test Methods for Electrical Power Insulators

ANSI C29.9 (1983; R 2002) Wet-Process Porcelain Insulators (Apparatus, Post Type)

ANSI C37.32 (2002) High-Voltage Switches, Bus Supports, and Accessories - Schedules of Preferred Ratings, Construction Guidelines, and Specifications

ASME INTERNATIONAL (ASME)

ASME B1.1 (2003; R 2008) Unified Inch Screw Threads (UN and UNR Thread Form)

ASME B1.20.1 (1983; R 2006) Pipe Threads, General Purpose (Inch)

ASTM INTERNATIONAL (ASTM)

ASTM A 36/A 36M (2008) Standard Specification for Carbon Structural Steel

ASTM A123/A123M (2013) Standard Specification for Zinc

(Hot-Dip Galvanized) Coatings on Iron and Steel Products

ASTM A153/A153M (2009) Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE 693 (2005) Recommended Practice for Seismic Design of Substations

IEEE C37.30 (1997) Requirements for High- Voltage Switches

IEEE C37.34 (1994) Test Code for High-Voltage Air Switches

IEEE C57.13 (2016) Requirements for Instrument

Transformers

IEEE 1248 (1998; R 2007) Commissioning of Electrical Systems in Hydroelectric Power Plants

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

NEMA ICS 2 (2000; R 2005; Errata 2008) Standard for Controllers, Contactors, and Overload Relays Rated 600 V

NEMA MG 1 (2011) Motors and Generators

NEMA/ANSI C12.11 (2007) Instrument Transformers for

Revenue Metering, 10 kV BIL through 350 kV BIL (0.6 kV NSV through 69 kV NSV)

U.S. ARMY CORPS OF ENGINEERS (USACE)

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

U.S. Army (DA)

Army Directive 2014-05 (2014) Policy and Implementation Procedures for Common Access Card Credentialing and Installation Access for Uncleared Contractors

DA AR 190-13 (2011) The Army Physical Security Program

DA AR 25-2 (2007; RAR 2009) Information

Assurance

1.3 SUBMITTALS

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

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Unless otherwise noted, all submittals shall be in PDF format or Microsoft Word.

SD-02 Shop Drawings Bill of Materials

Outline Drawings; G

Mounting Details; G

Schematic Diagrams; G

Wiring Diagrams; G

Manufacturer's Nameplate; G

SD-03 Product Data

Disconnect Switch; G

Electric Switch Operators; G

Manual Switch Operators; G

Switch Insulators; G

Interlocking; G

SD-06 Test Reports

Factory Tests; G

Insulator Tests; G

SD-10 Operation and Maintenance Data

Operation and Maintenance Manuals; G

Contractor-Furnished Training of Government Personnel; G

1.4 DELIVERY, STORAGE, AND HANDLING

Protect material and equipment in accordance with the manufacturer's recommended storage procedures. Protect stored items from the weather and contamination. The contractor shall furnish all equipment to function as a unit. All parts shall be properly marked and identified for ease of field assembly. Dimensions in accordance with the applicable contract and manufacturer's drawings shall be verified.

The contractor shall deliver all material and equipment on a flatbed truck (no enclosed delivery trucks), in such a way that a forklift or an overhead crane can be used to easily unloaded equipment onsite.

Delivery shall be made to:

Barkley Power Plant 8439 US HWY 62 West Kuttawa, KY 42055

Project Representative: Jamie Holt 270-362-8159

Delivery shall be made between the hours of 0800 and 1500 local time at place of delivery, Monday thru Thursday, except Federal Holidays.

Transportation charges shall be paid by the Contractor. Provide notice of delivery date at least one (1) week in advance.

PART 2 GENERAL REQUIREMENTS

2.1 BILL OF MATERIALS

Submit a comprehensive bill of materials (schedule of equipment) for each shop drawing set submitted. The schedule shall provide a cross reference between manufacturer data and shop drawings. The schedule shall include the total quantity, manufacturer, part number, and location of each item of equipment supplied. For complete assemblies, provide the serial numbers of each assembly, and a sub-schedule of replaceable components within the assembly.

2.2 NAME PLATE

The base of each pole of the switch, and the enclosure of each electric operator, shall bear the manufacturer's nameplate, stainless steel, which shall be in accordance with IEEE C37.30. Include weight.

2.3 CONTRACTOR’S DRAWINGS

Submit schematic, external connection, one-line, and wiring diagram of the automatic transfer switch. Operating instructions shall be shown either on one-line diagram or separately. Unless otherwise approved, one-line and elementary or schematic diagrams shall appear on same drawing. The drawings shall include, but not limited to, the following:

a. Mounting details and dimensions.

i. Location and dimensional data of switch terminals.

ii. Dimensional data pertaining to the arc of travel of disconnect

iii. Plan and elevation for travel of energized parts during operation showing clearances for and steel structures.

iv. Open-gap (metal-to-metal) distance.

v. Net weight of each complete single pole assembly, including insulators and surge resistors.

vi. Mounting details for limit switches, auxiliary switches, and auxiliary contacts, and provisions for adjustment.

vii. Net weight of the operators.

b. Outline drawings of the switch arrangement for each pole showing installation dimensions, including the operating mechanism.

c. Wiring diagrams showing the detailed internal and external connections, auxiliary switches, and interlocks.

d. Schematic diagrams for the control scheme auxiliaries and key interlocking.

PART 3 MOTOR OPERATED DISCONNECT

3.1 GENERAL

3.1.1 REQUIREMENTS

The motor operated disconnects shall be provided complete with linkages, terminal connectors, hardware, accessories, and necessary mounting devices, all as specified herein. The disconnects shall be 3-pole, outdoor, underhung mounting vertical break type, horizontal upright, with three insulator stacks per pole, and group-operated with simultaneous operation of all three poles. The disconnects shall have position indicators. The motion of the switch blades shall be accomplished through the rotation about its axis of one insulator stack per pole in each switch. The disconnects shall be adapted for mounting on the existing structure to be re-used without modifications to the structure, except for the addition of mounting plates as required to match with the existing structure. The paint color shall be ANSI 70 Light Gray.

3.1.2 SUPPORT STRUCTURE

All bolts, studs, machine screws, nuts, and tapped holes shall be in accordance with ASME B1.1. Threads for sizes 1/4-inch to 1-inch, inclusive, shall be NC or UNC series. The sizes and threads of all pipe fittings, shall be in accordance with ASME B1.20.1. Manufacturers' standard threads and construction may be used on small items which, are integrally replaceable, except that threads for external connection to these items shall meet the above requirements.

The tie between the hinge and jaw insulator stacks of the switches formed by the switch blade in the closed position shall be such that all stresses will be balanced. A positive tie in the form of a bridge shall be provided between the rotating and stationary insulator stacks at the hinge end. The switches shall open and close smoothly without appreciable jar or vibration. Each switch pole shall be manufactured so that the blades are toggled into both the open and closed positions. All current-carrying parts of the switches shall be made of non-ferrous materials of high conductivity and shall contain no more than ten-percent zinc. Hinge pins shall be made of high-grade corrosion-resistant materials. Bolted contact surfaces shall be silver plated. Brazing will not be permitted except as necessary for coating the contact surfaces. Points and sharp angles on blades, clips, and terminals shall be avoided or adequately shielded

3.1.3 HARDWARE

Bolts, nuts washers and pins used in the assembly of non-ferrous parts shall be silicon bronze conforming to ASTM B 98/B 98M, Alloy B, or non-magnetic stainless steel. Other corrosion-resistant metals may be used, if approved by the Project Representative. Bolts and pins shall have a minimum tensile strength of 75,000 pounds per square inch.

3.1.4 GALVANIZING

All galvanizing shall be performed in accordance with ASTM A123/A123M or ASTM A153/A153M as applicable and the zinc-iron alloy formed at the surface of the bare steel shall not exceed approximately 70 percent of the total zinc layer deposited

3.1.5 RATINGS FOR 161KV DISCONNECT SWITCHES

The ratings of the switches shall be as indicated below and shall conform to the requirements of ANSI C29.9, ANSI C37.32, and IEEE C37.30.

Rated Maximum Voltage, kV rms 161 Basic Impulse Insulation Level, kV rms 750 Continuous Current Rating, Amperes rms 2000 Momentary Current Rating, kA rms 80

3.1.6 BASES

The bases of a switch shall be fabricated from structural steel conforming to the requirements of ASTM A 36/A 36M. Each single-pole switch element shall be assembled on an individual base. The bases shall be rigid and self-supporting, without cross bracing between phases other than the steel supporting structure, Galvanized mounting bolts and beveled washers shall be furnished by the Contractor for mounting the switches on the steel structure.

3.1.7 BLADES

Blades shall be of tubular construction able to withstand operation under the weather and ice conditions. They shall be sufficiently rigid to prevent whip or vibration and of a configuration that will minimize an accumulation of ice, sleet or other foreign matter. All blades on disconnects shall be counter-balanced to insure optimum ease of operation and smooth control.

3.1.8 CONTACTS

All main switch contacts shall be of the high-pressure type. In opening, contact pressure shall be released prior to angular motion of the blade, and in closing, pressure shall not be applied until after angular motion has ceased. Contacts surfaces are to be silver and shall be not less than 10 mils thick. Fixed guides shall be provided so that proper seating of contacts will be obtained when a blade is out of line 1-inch or less in any direction.

3.1.9 HINGE CONNECTIONS

The current-carrying path through the hinge mechanism of the switches shall be by means of movable pressure type contacts of proven configuration. The entire hinge mechanism of the switch shall be so configured and constructed that nesting of birds and insects is prevented or does not interfere with proper operation of the switch. The hinge contacts shall be sealed and threaded.

3.1.10 TERMINALS

Switch terminal pads shall be of high-strength aluminum alloy or high-copper alloy with silver-plated contact surfaces. For one set of disconnects, the terminal pad height shall be 80” from base to top of pad suitable for connection of copper or aluminum conductors. For the second set of disconnects, the terminal pad shall be 73” base to top of pad. The terminal pads shall be NEMA six hole type per ANSI C37.32 Terminal loading shall meet the requirements of ANSI C37.32 for the switch type and rating.

Provide twelve (12) pipe to flat pad expansion terminal, 2” iron pipe size

(IPS).

3.6.1 SWITCH BEARINGS

All bearings shall be ample in size to sustain the imposed loads and of a type to ensure continued ease of operation and long life. Bearings provided at the base of the rotating insulator column for each switch pole shall be of the ball or roller type and shall be adequately protected from the weather to prevent the entrance of dirt or moisture and resulting corrosion. All other bearings shall maintain proper alignment, ensure ease of operations, and ensure against corrosion and seizing under the operating conditions. All gears shall be enclosed in weatherproof cases to retain the necessary lubrication to cover the gears. All main switches shall have bearings at the base of each rotating insulator stack and, if necessary, additional bearings at the top of the stack.

3.1.12 SWITCH INSULATORS

Each pole of each switch shall be provided with stacks of insulator units complete with posts and hardware. Insulators shall be as specified in paragraph: Ratings for 161kV Disconnect Switches. Each insulator unit shall be porcelain or composite material, TR-291 standard strength or equivalent, and shall be of a type and style being currently provided by the switch manufacturer, conforming to the applicable requirements of ANSI C29.9.

Suitable means shall be provided to adjust the vertical axis on all insulator stacks when assembled.

3.1.13 ARCING HORNS

The switch jaw and the blade end shall be equipped with arcing horns, with silver to silver contacts. The arcing horns shall be the manufacturer's standard for switches of the ratings provided. Arc horn details and the associated equipment spacing shall be included on the manufacturer's submitted drawings.

3.2 OPERATING MECHANISMS

3.2.1 CONSTRUCTION

The disconnect switch shall be provided with an operating mechanism for group operation of the three blades. All operating mechanisms shall be suitable for operating the switches without the use of special tools and shall be complete with linkages, cranks, gears, bearings, interlocks, and levers. The bases and parts of the operating mechanisms shall be to the manufacturer's approved drawings. Brackets, plates, channels, angles, bolts, nuts, and washers for mounting the mechanisms, bearings, housings, and auxiliary switches on the steel structures shall be furnished with the switches and shall be galvanized or made of corrosion resistant material. The operating mechanism shall provide smooth thoroughly-controlled simultaneous movement of the switch blades throughout the entire cycle of operation. The entire configuration shall be such that cantilever or torsional stresses imposed upon any insulator column by the operation of the switch shall not exceed the safe limits of the column. Provisions shall be made for the individual adjustment at each pole to compensate for misalignments of the switch bases and operating shafts. After final adjustments, it shall be mechanically impossible for any blade to remain in the open or closed position when the mechanism has been operated at any speed. All hinge pins, pivot yoke cotter pins, piercing set screws, and lock washers shall be of stainless steel. All holes in cranks and linkages having moving pins shall be drilled (not punched) to accurate fit. All fittings shall be attached to connecting rods or pipes with through-bolts or self-tapping set screws in addition to other means of attachment to insure that there will be no slipping of connections. Gears and bearings made of corrosion-resistant metal shall be covered with a waterproof silicone-type grease at the time of factory assembly, or shall be completely immersed in a suitable lubricant. Gears and bearings of non-corrosion resistant metal shall be completely immersed in a suitable lubricant, or may be covered with a silicon-type grease, subject to approval of the Project Representative.

The gears, bearings and lubricant shall be sealed in the case to produce a mechanism which does not require maintenance.

3.2.2 GROUNDING

Each operating mechanism shall be provided with a 24-inch flexible copper braid conductor, equal in current-carrying capacity to No. 4/0 AWG copper cable, for grounding the lower end of the operating shaft or operating lever.

3.2.3 OPERATOR BEARINGS

The weight of the shaft shall be supported by a roller or ball bearing at the bottom and/or at the top of the shaft. If over 20 feet in length, the shaft shall be provided with a guide or steady bearing so constructed that accumulations of foreign materials will not interfere with the operation and repeated operations will not affect the corrosion-resisting coating on the shaft and the stationary part of the bearing.

3.2.4 SHAFTS AND LINKAGES

All pole-to-pole and controller-to-pole connecting operating shafts and linkages shall be continuous, with only the necessary fittings located at their extremities. The vertical operating shafts shall be of the torsional type with suitable pipe guides or bearings at intervals of not more than ten (10) feet. A mechanical device indicating the "OPEN" and "CLOSED" positions of the blades of the switch shall be provided at the lower end of the vertical operating shaft for the blades. The indicator shall be of corrosion-resistant metal and located where it will be readily visible from the ground. All vertical and horizontal operating shafts, and connecting pipe or shafting between phases shall be constructed of corrosion-resistant material. Provision shall be made for padlocking each mechanism in both the open and closed positions.

3.2.5 INTERLOCKING

Each manual disconnect switch shall be provided with mechanical interlocking provisions to prevent operation of the switch while the switch is energized. The grounding switch operating mechanism shall be interlocked with the disconnect switch mechanism to prevent the closing of the disconnect switch when the grounding switch is in the closed position, as well as to prevent the closing of the grounding switch when the disconnect switch is in the closed position.

3.2.6 MANUAL OPERATING MECHANISMS

Geared type manual operators shall drive a worm or bevel gear operated with a crank. The motion of the handle shall be clockwise to close and counterclockwise to open the switch. All gears and worms shall be lubricated and completely enclosed in gear cases. The non-detachable crank shall not be more than 15 inches, and less than 12 inches in length. A rain-tight shield shall be provided where the vertical shaft extends through the gear case. All gear-operating mechanisms shall be enclosed in a weatherproof case made of corrosion-resistant metal, or metal hot-dip galvanized in accordance with ASTM A153/A153M. All cases shall retain the necessary lubrication to cover the gears, shall be fitted with a drain hole and captive plug in the bottom, and shall be provided with pressure fittings if parts require periodic grease lubrication.

3.2.7 MOTOR OPERATED MECHANISMS

The drive train and manual operating provisions must comply with the requirements of paragraph: MANUAL OPERATING MECHANISMS. The motor operated mechanism must be a reversing type with provision for manual operation in an emergency by means of a hand crank. Provide provisions to automatically disconnect the electrical control circuit when the crank is inserted for manual operation. Provide a suitable hanger with fastening devices to hold the crank when not in use. The motor must conform to applicable portions of NEMA MG 1 and controls must comply with applicable portions of NEMA ICS 2. The gear train must be totally enclosed. Reversing contactors must be mechanically interlocked so that the opening and closing contactors cannot be closed at the same time.

Contactors must be NEMA Size 1 or larger with operating coils suitable for continuous operation at rated voltage. Include a mechanical or other positive means to stop the operation of the disconnect and to hold it in the open or closed position. For the operating mechanism assembly, include an operation counter. Ensure the motor control for a motor operated mechanism is continuously loaded throughout the entire operating cycle to prevent the switch from alternately leading or lagging the control.

3.2.8 DC MOTOR

The motors must be of ball bearing type suitable for operation on 125 volt direct current (DC) and must operate the switch satisfactorily at 5 percent overvoltage and 25 percent undervoltage for closing and opening.

Protect the motor with overloads, sized as required. Provide the motor with a molded case circuit breaker with magnetic trip unit for use as a disconnect means within the enclosure.

3.2.9 MOTOR OPERATOR CONTROL

The local motor operator control must be a two-button, momentary contact, "OPEN-CLOSE" push-button station or a switchboard type control switch, accessible only when the housing door is open. Include indicator lights visible when the housing door is closed and an emergency stop button. The controls must be a heavy-duty type rated 600-volts AC, 250-volts DC, 20 amperes continuous, with single-break inductive load interrupting rating of not less than 1.5 amperes for 125-volts DC.

Include a molded case circuit breaker for visibly disconnecting the control voltage power supply. Include provisions for remote operation from the control room with "OPEN-CLOSE" buttons and indicating lights.

Include a "LOCAL-REMOTE" switch transferring control to the remote operating station at the control room. Provide four normally open and four normally closed auxiliary contacts with each operator in addition to those required for controls, interlocking and indication.

3.2.10 MOTOR LIMIT SWITCHES

Motor limit switches must be heavy-duty snap-action type and must have sufficient contacts to provide the specified control functions. "OPEN" and "CLOSED" must accurately indicate the point during the main switch operating cycle when each blade reaches the end of its stroke and has successfully attained its fully open or fully closed limit position. The limit switches must positively hold their adjustment setting under all ambient operating conditions, in severe dust locations, and over indefinite periods of time to assure maximum integrity of position indication. Each limit switch must be easily adjustable and easily accessible. Each limit switch must be electrically independent.

3.2.11 MOTOR OPERATOR HOUSING

Motor operator housing must be a deadfront NEMA 4R panel with means for locking with a padlock when closed. The housing must be drilled for the entrance of conduits. Include in the housing a 120-volt, single-phase, AC heating unit of approximately 100 watts capacity, with an automatic thermostat control and a molded case circuit breaker or switch to disconnect the heating unit from the source of power. Doors must provide easy access to all parts. Provide suitable screened louvers with dust filters for ventilation, and a drain with dust filter must be provided to prevent accumulation of moisture at the bottom of the housing.

3.3 AUXILIARY SWITCHES

Auxiliary switches (minimum of 10 circuits) shall be provided on motor-operated disconnect switches and manually-operated ground switches for indication and interlocking of local control for circuit breakers.

Contacts shall be rated 125 volts DC, and not less than 10 amperes continuous. All auxiliary switches shall be adjustable for timing with the switch blades and shall be complete with all connecting links and fittings. False indication through the auxiliary switch shall not be given if the switch blades fail to make a complete stroke. Terminal blocks and boxes shall be provided for the auxiliary switches for external wire connections. Auxiliary switches shall be directly connected to linkage and keyed to prevent slippage.

3.4 SWITCH TOOLS AND ACCESSORIES

The Contractor shall furnish one complete set of all special tools, wrenches, and other appurtenant equipment that may be necessary or convenient for assembling, aligning or disassembling the switches.

3.5 SPARE PARTS

All spare parts shall be of the same material, and manufacture as the original parts, and they shall be interchangeable therewith. The following spare parts shall be furnished:

a. One (1) complete Pole including all necessary parts/pieces to directly replace a phase on currently installed switch.

b. Three (3) complete assemblies of stationary and moving shoes, or tip assemblies, for main contacts of one pole of disconnect switch and also for the grounding switch.

c. One (1) complete set of auxiliary contacts and springs for the disconnect switch and also for the grounding switch.

d. Three (3) complete switch insulator stacks.

e. One (1) auxiliary contact switch

f. One (1) local control pushbutton with cover

g. One (1) local/remote switch

h. One (1) dc motor o One (1) set of dc motor brushes o One (1) set of dc motor bearings

PART 4 VOLTAGE TRANSFORMER

4.1 GENERAL

Provide seven (7) Voltage transformers. Voltage transformers shall be rated for outdoor service. Voltage transformers shall comply with NEMA/ANSI C12.11 and IEEE C57.13. The paint color shall be ANSI 70 Light Gray.

Voltage transformers shall be configured for mounting in/on the device to which they are applied. The voltage transformer shall have the following characteristics:

a. Suitable for metering or relaying

b. Single bushing, Line to Ground (L-G),

c. 161 kV class,

d. 750 kV BIL,

e. 60 HZ,

f. Primary Voltage: 92,000 Volts

g. Secondary Voltages (2): 115/65.71 & 115/65.71 Volts

h. Secondary Ratios (2): 800/1400:1 & 800/1400:1

i. Stainless steel nameplate

4.2 NAME PLATE

The base of each voltage transformer shall bear the manufacturer's nameplate, stainless steel, which shall be in accordance with IEEE C57.13.

Include weight.

4.3 CONTRACTOR’S DRAWINGS

Submit schematic, external connection, one-line, and wiring diagram of the automatic transfer switch. Operating instructions shall be shown either on one-line diagram or separately. Unless otherwise approved, one-line and elementary or schematic diagrams shall appear on same drawing. The drawings shall include, but not limited to, the following:

a. Mounting details and dimensions.

i. Location and dimensional data of switch terminals.

ii. Dimensional data pertaining to the arc of travel of disconnect

iii. Plan and elevation for travel of energized parts during operation showing clearances for existing walls and steel structures.

iv. Open-gap (metal-to-metal) distance.

v. Net weight of each complete single pole assembly, including insulators and surge resistors.

vi. Mounting details for limit switches, auxiliary switches, and auxiliary contacts, and provisions for adjustment.

vii. Net weight of the operators.

b. Outline drawings of the switch arrangement for each pole showing installation dimensions, including the operating mechanism.

c. Wiring diagrams showing the detailed internal and external connections, auxiliary switches, and interlocks.

d. Schematic diagrams for the control scheme auxiliaries and key interlocking.

4.4 ACCURACY PERFORMANCE

Voltage transformers shall have indicated ratios. Units shall have an accuracy rating of 0.3 Class accuracy for metering with burdens of 0, W, X, M, Y, Z and ZZ, in accordance with IEEE C57.13 and C12.11.

4.5 TANK AND EXPANSION BELLOWS

The expansion bellows shall allow for the expansion/contraction of oil for temperature and load fluctuations. The bellows will maintain constant pressure on the oil under various ambient and load conditions. Base and tank components to be prepped and coated with a heavy galvanized finish, effectively making the unit paint-free. All machine finished or corrosion-resistant surfaces shall remain unpainted, and be thoroughly cleaned, coated with a suitable, easily removed, corrosion resistant compound, and wrapped or otherwise protected from damage in shipment. The secondary terminal Box shall have a 1.5” conduit hub and plug, with a NEMA Type 4 enclosure. The primary terminal shall be a 4-hole NEMA pad, suitable for use with copper or aluminum bus connections. Secondary connections shall be 0.25”-20 copper studs with hardware located in a weatherproof, hinged cover, terminal box with three (3) conduit knockouts suitable for 1.5” conduit hubs. The ground terminal is a stainless steel NEMA 2-hole pad. The tank and expansion bellows shall have a drain valve (0.75”), oil fill plug (0.75”), oil sampling valve, magnetic oil level gauge, pressure relief valve, and lifting eyes. The color shall be ANSI 70 light grey on any component to be painted on the tank or expansion bellows

4.6 SPARE PARTS

All spare parts shall be of the same material, and manufacture as the original parts, and they shall be interchangeable therewith. The following spare parts shall be furnished:

a. Gasket Kit.

b. Expansion Valve.

c. Lowside/ground porcelain bushing with seal kit.

d. Oil level gauge.

e. Pressure Relief Valve

PART 5 FIELD VERIFICATION & FACTORY TESTS

5.1

After becoming familiar with details of the work, verify dimensions in the field, and notify the Project Representative of any discrepancy before supplying any equipment.

5.2 ROUTINE TEST

Each item of equipment shall be given the manufacturer's routine factory tests and other tests specified below. The factory test equipment and the test methods used shall conform to the applicable requirements of ANSI Standards, IEEE Standards, and NEMA Publications and are subject to the approval of the Project Representative. All tests required will be witnessed by the Project Representative unless waived in writing, and no equipment shall be shipped until it has been approved for shipment by the Project Representative. The Contractor shall notify the Project Representative a minimum of 30 days in advance of the date of the tests so that arrangements can be made for the Project Representative to be present at the tests. The cost of performing all tests shall be borne by the Contractor.

5.3 GROUP-OPERATED DISCONNECT AND GROUNDING SWITCH TYPE TESTS

The Contractor shall have performed the specified design tests or type tests on switches of identical construction and of the same voltage, continuous current and momentary current ratings as those specified. No equipment shall be shipped until it has been released for shipment by the Project Representative. The following tests shall have been performed in accordance with the applicable provisions of IEEE C37.34:

a. Dielectric tests including low-frequency, dry-withstand, and impulse-withstand, temperature rise tests, and short time current tests.

b. Switching impulse test.

c. Ice test.

d. Radio influence test.

e. Corona test.

f. Hinge mechanism tests demonstrating momentary and continuous current capacity as specified.

5.4 OPERATION AND MAINTENANCE (O&M) DATA

Two (2) Operation and Maintenance Manuals shall be submitted. The O&M manual shall contain all information that may be needed or useful for operation, maintenance tasks with specific instructions and associated frequencies, repair, dismantling or assembling, and for identification of parts for ordering replacements, including step-by-step operating instructions, description of individual operating parts as well as the systems as a whole, and identification of lockout/tagout points. The address, telephone, and website (if available) for the manufacturers' service organization shall be clearly identified in the manual.

Manuals shall contain the following information for the switch, operators, and any accessory equipment included therewith:

a. Complete instructions covering the operation, adjustment and maintenance of the equipment. Cuts or drawings shall be provided showing all points where adjustments may be made.

b. Drawings which identify all spare parts by either part number or item and drawing number.

c. Information and drawings on insulators provided with the switches.

5.5 TESTING, COMMISSIONING & TRAINING

5.5.1 FIELD TESTING

The field engineering service testing group shall provide all material, equipment, labor and technical supervision to perform electrical equipment tests and inspections. The field engineering service division of the equipment manufacturer shall administer all acceptance and start-up testing, and power system studies, as referenced in other specification sections. Equipment warranty shall be extended to two years from date of commissioning when service representatives employed by the equipment manufacturer perform startup. The intent of these tests is to assure that all electrical equipment is operational within industry standards and manufacturer’s tolerances and that equipment is installed and functioning in the system in the manner intended by the engineer. Upon completion of the tests and inspections noted in these specifications, a label shall be attached to all serviced devices. These labels will indicate date serviced and the engineering service testing group responsible. The tests and inspections shall determine suitability for initial continued reliable operation.

5.5.2 CONTRACTOR-FURNISHED TRAINING OF GOVERNMENT PERSONNEL

After the disconnect switches have been placed in service, the contractor shall conduct training a course for operating staff as designated by the Project Representative. The course instructions shall cover pertinent points involved in operating, starting, stopping, servicing the equipment, as well as major elements of the operation and maintenance manuals. Additionally, the course instructions shall demonstrate routine maintenance procedures as described in the operation and maintenance manuals.

6.1 PRE-BID MEETING IN CONTROLLED AREA

6.1.1 U.S. CITIZENS

The Offeror/Bidder and/or Contractor shall submit a Nashville District (LRN) Security Access Form to the Nashville District Point of Contact (LRN POC) five (5) days prior to the site visit or any meeting held at or in LRN restricted/controlled areas (such as a Power Plant or Navigation Lock). If submitting the document in less than five days, the Offeror/Bidder may not receive approval for participation. The LRN POC will notify the individual(s) if the request is approved or denied.

The "Security Access Form - U.S. Citizens" with guidance is available at:

http://www.lrn.usace.army.mil/BusinessWithUs/ContractSecurityRequirements.a spx

6.1.2 FOREIGN NATIONALS (FNS)

FNs wishing to attend a pre-bid meeting or site visit shall submit a completed LRN FN Security Form and legible color copies of two of the following documents: Passport (unexpired or expired), Certificate of U.S.

Citizenship (INS Form N-560 04 N-561), Certificate of Naturalization (INS Form N-550 or N-570), unexpired foreign Passport with I-551 stamp or attached INS Form I-94 indicating unexpired employment authorization, an Alien Registration Receipt Card with photo (INS Form I-151 or I-551), unexpired Temporary Resident Card (INS Form I-688), unexpired Employment Authorization Card (INS Form I-688A), unexpired Reentry Permit (INS Form I-327), unexpired Refugee Travel Document (INS- Form I-571), or unexpired Employment Authorization Documentation issued by the INS which contains a photograph (INS Form I-688B) to the LRN POC to be forwarded to LRN-SM for approval. These documents must be submitted two (2) weeks prior to the meeting or site visit. Exceptions will be considered on a case by case basis but will be limited.

The "Foreign National Security Access Form" and "Foreign National Pre-Bid Meeting Request Form" with guidance are available at:

http://www.lrn.usace.army.mil/BusinessWithUs/ContractSecurityRequirements.a spx

6.1.3 ELECTRONIC MEDIA PROVIDED BY THE CONTRACTOR

The Contractor shall ensure all media, electronic files, etc., it provides to the Government shall be free of viruses, Trojan horses, bots, worms, malware, defects, or any other harmful item of a destructive nature.

6.1.4 CONDUCT OF CONTRACTOR EMPLOYEES

Meet the requirements of EM 385-1-1, Section 01.C Physical Qualifications http://www.lrn.usace.army.mil/BusinessWithUs/ContractSecurityRequirements.aspx http://www.lrn.usace.army.mil/BusinessWithUs/ContractSecurityRequirements.aspx http://www.lrn.usace.army.mil/BusinessWithUs/ContractSecurityRequirements.aspx http://www.lrn.usace.army.mil/BusinessWithUs/ContractSecurityRequirements.aspx of Employees, in providing on-site employees. All Contractor employees and subcontractors shall conduct themselves in a proper manner at all times.

No alcoholic or intoxicating beverages or substances or illegal drugs or controlled substances not prescribed by a physician shall be possessed, consumed, and no contractor employee shall be under the influence of any such unauthorized substance while on Government property.

The Contractor shall remove from the site any individual whose continued employment is deemed by the appointed receiving agent to be contrary to the public interest or inconsistent with the best interests of the U.S. Army Corps of Engineers.

The Contracting Officer or the appointed receiving agent will require the Contractor to immediately remove from the work site anyone who is incompetent or who endangers persons or property or whose physical or mental condition is such that it would impair the employee's ability to satisfactorily perform the work. Notification to the Contractor will be made in writing if time and circumstances permit. Otherwise, notification will be verbal and will be confirmed in writing as soon as possible. No such removal, however, will reduce the Contractor's obligation to perform all work required under this contract and immediate replacement shall be made as required.

6.1.5 RELEASE OF SENSITIVE INFORMATION

The Contractor shall not make available to the news media or publicly disclose any data generated or reviewed under this Contract. Any inquiry received by the Contractor for information concerning work performed under this Contract shall be referred to the Government for evaluation under the Freedom of Information Act of 1975, Public Law 93-502, 5 U.S.C., Section

552. The determination of whether records will be released will remain with the Government. The Contractor shall assist the COR in compiling information or records for submission upon request by the government.

Reports and data generated under this Contract shall become the property of the Government and distribution to any other source by the Contractor, unless authorized is prohibited.

6.1.6 DAMAGE OR LOSS OF CONTRACTOR'S SUPPLIES AND PROPERTY

The Contractor is responsible for taking the action necessary to protect Contractor supplies, materials and equipment, and the personal property of Contractor employees from loss, damage or theft. The Government assumes no responsibility for theft, damage, etc., of the above. All incidents of theft (or suspected theft) of contractor materials, supplies, or equipment from project lands shall be reported to the COR.