Attch J-2 Seed Project - Repair Switchgear in Sub3 Area SOW.pdf

Repair Selected Pad-Mounted Switchgear in Sub3 Area in MAFB in JBMDL.

PTFL 241004

SOW

For

REPAIR SELECTED PAD-MOUNTED SWITCHGEAR IN SUB3 AREA

IN MAFB

AT JOINT BASE MCGUIRE-DIX-LAKEHURST, NEW JERSEY

PTFL241004

MAY 2024

Period of Performance:

All work shall be completed within FIVE HUNDRED AND FORTY (540) calendars day period, excluding holidays.

Scope of Work. The Contractor shall provide all labor, material, equipment, and supervision necessary to inspect, test, calibrate, program, start-up, document, troubleshoot, construct, maintain and repair electrical systems.

All equipment and materials used and work performed shall meet all applicable standards and codes which include but not limited to IEEE-C2, NFPA 70,72,90A and 101, UL, NEMA,FM, ICEA, UFC 3-600-01.

Points of Contact (POC):

Tech POC: JOAQUIN, EARL JAN L | earl_jan.joaquin.1@us.af.mil|609-562-2559 787 CES POC: Raju Vazheparambil, (609)562-2121, raju.vazheparambil@us.af.mil

Please copy POC’s listed with all correspondences.

The Contractor Manager or an alternate shall be available within sixty (60) minutes notice during normal duty hours, 7:00am to 3:30pm, to meet with Government personnel to discuss any problems encountered at the work site. Contractor will supply Government Quality Assurance Personnel (QAP) with phone number for contacting purposes.

Base Entry: The contractor shall obtain the necessary passes and /or identification for entry into Joint Base McGuire-Dix-Lakehurst for all employees prior to commencement of work. The Government reserves the right to refuse to issue an entrance pass to any employee for any reason deemed valid by the Government.

The contractor shall be required to provide the Security Forces with vehicle registration(s), proof(s) of insurance, driver license(s), and a picture ID(s) to obtain a pass for entry onto the base. See attached ‘Joint Integrated Defense Plan's (JIDP) Contractor Appendix’ for further requirements.

Site Visit: Contractor shall field verify site conditions. The contractor/bidder shall visit the site to verify the existing conditions with respect to the work prior to pricing the work and or bidding on the work.

Work Scheduling: All work at the site shall be done between 0600H and 1700H on weekdays except when allowed elsewhere in this SOW (See Electrical Shutdowns).

Electrical shutdowns:

All shutdowns shall be conducted on off-duty hours (Saturdays, Sundays, or from 1700H to 0600H on weekdays) and at the convenience of the Government.

In cases of prolonged shutdowns which extend beyond the permitted (see above) shutdown hours or, if in the opinion of the contractor, shutdowns are required during normal operating hours of the Base, the contractor shall provide temporary power of adequate capacity and ratings to the affected loads individually or collectively. The source of temporary power shall be in the form of diesel engine rental generators or adjacent sources like pad-mount transformers/switchboards/pad-mount switches. Provide all wiring as required. Obtain all permits.

The contractor shall give a 4-weeks’ notice (minimum) to the Government prior to any shutdown.

Schedule the construction activities in such a way that cables and equipment to be removed are kept in service as long as possible to maximize the continuity of service.

Submittals: See submittal register

Quality Assurance:

Uniformity: Unless otherwise specified, equipment or material of same type of classification, used for the same purpose shall be products of same manufacturer. All material shall be new and of the current design of manufacturer providing equipment or material.

Design: Equipment and accessories not specifically described or identified by manufacturer's catalog numbers shall be designed in conformity with NEMA, IEEE, or other applicable technical standards and shall have neat and finished appearance.

Installation: Erect equipment in neat and workmanlike manner; align level and adjust for satisfactory operation; install so that parts are easily accessible for inspection, operation, maintenance, and repair. Minor deviations from indicated arrangements may be made, but only after obtaining approval from the Contracting Officer.

Reference Drawings:

Reference Drawings: 5 sheets.

These reference drawings depict the existing system and location/position of the pad-mount switchgear units to be replaced as follows:

Sheet 1: Diagram: SCA1 and SCB1 Sheet 2: Diagram: SW2919 and SCFDRE-1 Sheet3: Plan: SCA1 Sheet4: Plan: SCB1 Sheet5: Plan: SW2919 and SCFDRE-1

Notes:

1. All drawings are not to scale; verify distances and dimensions/locations of structures/equipment in the field. Circuit diagrams shown are diagrammatic and functional only and are not intended to show exact circuit layouts, number of fittings, or other installation details.

2. Sheets 2 and 5 of Reference Drawings do not show recently installed back feed primary cables to FCE from SW2919. All work to reconnect/connect the FCE primary cables at S2919 including updating the as-drawings shall be included in this Task Order.

Descriptions: This Statement of Work (SOW) is for the construction, programming, start-up, calibrating, documenting, inspection and testing of medium voltage pad mounted switches for underground medium voltage distribution including all required demolition associated with Primary Feeders ‘A’,’B’ and ‘E’ (12.47kV) fed from Substation No.3 system on Joint Base McGuire-Dix- Lakehurst, New Jersey, McGuire area.

1. Provide S&C Electric Company Vista SF6 insulated pad-mounted underground distribution switchgear units as per the schedule below. The switchgear unit shall be rated 15.5 kV Nominal, 95 kV BIL, 630A and 12.5 kA symmetrical fault interrupting and short circuit.

Switchgear units shall have as a minimum the following features/components:

Standard Aluminum Bus S Stainless Steel Switch tank L2 Potential Indication with Test Feature with provisions for LV Phasing P6 or P4(as per schedule) Pad-mount Style Switch, 11-gauge Mild Steel Enclosure P106 Painted Federal Standard 595, Color # 20040, Dark Brown O Ground Pad, One per Way T4 Three-Phase Tripping on Four Fault Interrupters W5 18” Base Spacer with tank supports.

(Total) Number of ways: As indicated in the schedule.

Number of 3-Pole 600-Ampere Load Interrupting (manual) switches: As indicated in the schedule.

Number of 3-Pole 200- Ampere Fault Interrupters/manual switch.

Item No.

Existing Unit to be Demolished

New Unit Type Model# Remarks/ Related Work

1 SCA-1 SWA-1 422 S&C Catalog # 934222R1-S-L2-O-P6- P106-M2-T3-W5

Extend Concrtepad and, See notes

2 SCB-1 SWB-1 422 S&C Catalog # 934222R1-S-L2-O-P6- P106-M2-T3-W5

Extend Concrtepad and, See notes

3 SW2919 SW2919 422 S&C Catalog # 934222R1-S-L2-O-P6- P106-M2-T3-W5

Provide new Concrtepad and See notes

4 SCFDRE-1 SWFDRE-5 633 S&C Catalog # 936332R1-S-L2-P6- P106-O-T3-W5

Extend Concrtepad and,See notes

General Notes (GN): Applicable to all pad mounted switches.

1. See Drawing Details for Concrete Pad/grounding etc.

2. All demolished equipment/materials shall be removed and disposed off the Base.

3. Reconnect all cables to the Switches. Mark unused Ways of the Switches as “Spare” Provide loadbreak protective CAPS on all spares.

Specific Notes (SN): Sheets 2 and 5 of Reference Drawings do not show recently installed back feed primary cables to FCE from SW2919. All work to reconnect/connect the FCE primary cables at S2919 including updating the as-drawings shall be included in this Task Order.

Pad mounted Switchgear:

Where pad mounted switchgear is being replaced, provide an extended concrete pad for the mounting of the pad-mounted switchgear unit complete with four (4) bollards. Shutdowns will not be provided for the pad extension work.

Provide new concrete pads for pad-mounted switchgear SW2919 adjacent to existing pad.

Extend or shorten underground duct-bank as required after pulling back the cables at the adjacent manhole. Consult COR as required. Demolish existing pad. Restore the site.

See attached details drawing.

Provide ground new loop complete with all necessary tests and reporting. See attached details. Demolish and dispose of existing pad mounted switchgear units. Install the pad-mounted switchgear units. Provide all anchor bolts and mounting hardware and secure the switchgear to the concrete pad. Provide all bonding.

Conduct all field visual and mechanical inspections. Compare equipment nameplate information with specifications and approved shop drawings. Inspect physical and mechanical condition. Check for proper anchorage, alignment, required area clearances, and grounding. Perform mechanical operator tests in accordance with manufacturer's instructions. Verify that insulating SF6 gas pressure is correct. Inspect all indicating devices for proper operation.

Conduct all field electric tests and submit reports. Perform contact-resistance tests. Trip fault interrupters by operation of overcurrent control. Perform insulation-resistance tests. Perform an over-potential test on each switched way pole with the switched way in the open position in accordance with the manufacturer's instructions.

Engage the services of pad-mounted switchgear manufacturer to program the electronic trips and fault interrupter overcurrent control to achieve coordination with upstream/downstream fuses and other overcurrent devices. Overcurrent device settings will be provided by the Government.

Provide elbow inserts. Reconnect existing cables.

For Cross-Over (Tie) switches, follow NO or NC positions of the switch ways shown on reference drawing: “One-Line Schematic Substation 3: Feeders C&D”

2. Labeling:

Provide all labeling as follows:

a) All pad mounted gear units:

All safety labels (high voltage, arc flash, etc) as required by codes and industry.

Name Labels: Bold black 34 font size lettering on orange background attached to front of unit. Indicate voltage.

Diagram showing bus and ways: Indicate destination of each way.

Grading of line-weights shall be in descending order from bus, 600 A ways and 200A ways. Drawing and lettering (bold 16 size font) shall be black on an orange background. Minimum size of diagram shall be 8”X 11”. Install the diagram on the top cover of gear unit for units less than 36” in height and on the front for those which are taller.

All labeling products shall be commercially available industry standard products suitable for outdoor use. Submit samples of diagram, lettering, tag, and other materials for approval.

b) All primary cables existing (new and existing) terminated in all (existing and new) pad mounted switchgear units: Provide disc-type cable tags (non-metallic, rated for constant immersion in water) attached to cable showing their destination.

SPECIAL REQUIREMENTS

1. Field Verification: Perform the following field research activities for all pad-mounted switchgear before ordering and before removing any existing switchgear unit:

a) Confirm number and type of existing ways with the Schedule in this SOW.

b) Where pad-mounted switchgear is being replaced, the existing cables are to be re-used complete with cable existing terminations/elbows. Configure the ways of new switch with respect to existing ways so that existing cables can be reconnected to switchgear without splicing/replacing. Open manholes to see whether there is sufficient slack in cables. Pump out water out of manholes. Check base spacer of existing switchgear unit for sufficient slack in cables. Scheduled shutdown of each switchgear unit will be granted for this activity upon request by Contractor and review by COR.

c) Take photographs of all open manholes, open switchgear, site conditions with obstructions, etc.

d) Summarize the findings in report to COR and wait for further directions.

Attach photographs to the report verifying the findings.

2. Submit qualifications and experience details of the NETA Certified Testing firm with the Bid.

3. Before the commencement of work check the phase sequence of the pad mounted tie-switches (cross- connection) switches. Submit a report on findings.

4. Sequencing of Construction Operations shall be in such a way that disruption of continuity of electric services shall be minimum in duration and area affected. Construction schedule shall reflect this requirement.

5. Extension (expansion) to switchgear pads shall be done with switchgear live (no shutdown) and during normal working hours. See Item 7 below.

6. Demolishing existing switchgear unit and installation of new unit shall be done during non-working hours and weekends. See Item 7 below.

7. Work within the Airfield: Extreme caution should be exercised while conducting construction operations within the Airfield. Movement of people, vehicles, materials shall be as per air-field regulations. Clean -up and removal of materials after work shall be prompt.

No materials shall be stored in the air-field area. There are two Pad mounted switch gear to be replaced in this contract (two construction activities) including expansion of concrete pad (two construction activities), totaling four (4) construction activities. Each of these construction activities shall be performed on different days.

Product Specifications and Installation: See SPECIFICATION, INDEFINITE DELIVERY

INDEFINITE QUANTITY ELECTRICAL SYSTEMS-INSPECTIONS, TESTING,

CONSTRUCTION, MAINTENANCE AND REPAIRS AT JOINT BASE MCGUIRE-DIX-

LAKEHURST, NEW JERSEY for product specifications not included in this SOW and further details of those included in this SOW

S&C Electric Company Vista SF6 insulated pad-mounted underground distribution switchgear:

The switchgear unit shall be rated 15.5 kV Nominal, 95 kV BIL, 630A and 12.5 kA symmetrical fault interrupting and short circuit. Switchgear units shall have as a minimum the following features/components:

Standard Aluminum Bus S Stainless Steel Switch tank L2 Potential Indication with Test Feature with provisions for LV Phasing P6 or P4(as per schedule) Pad-mount Style Switch, 11 gauge Mild Steel Enclosure P106 Painted Federal Standard 595, Color # 20040, Dark Brown O Ground Pad, One per Way T4 Three-Phase Tripping on Four Fault Interrupters W5 18” Base Spacer with tank supports (Total) Number of ways : As indicated in the schedule Number of 3-Pole 600-Ampere Load Interrupting (manual) switches: As indicated in the schedule.

Number of 3-Pole 200- Ampere Fault Interrupters/manual switch

Provide switchgear with switch contacts and cable entrance terminations contained in a sealed, dielectric-filled stainless steel tank. Switchgear must be shipped factory filled with appropriate levels of SF6 gas conforming to ASTM D2472. Configure switchgear with load interrupting and fault interrupting switched ways as described in ‘Descriptions’ part of

SOW.

Provide switchgear with front accessible terminations suitable for cables entering from below with manual operating provisions either mounted on the rear or capable of hook-stick operation per IEEE C37.74. Switch contact positions for switched ways must be visible through viewing windows in the switchgear tank located adjacent to the manual operating provisions. Provide internal gas pressure gage in viewable location from switch operating handle. Provide each switched way with three position switch; Open, Closed, Ground.

Pad-mounting Provisions: Provide enclosed switchgear suitable for installation on a concrete pad. Provide switchgear with an 18” high carbon steel base spacer (non-compartmented type). The finish coating system for the whole assembly enclosure shall be brown, Federal Standard 595 (color #20040).Comply with IEEE C57.12.28] [IEEE C57.12.29] for the paint coating system regardless of equipment material.

Load Interrupting Switched Ways: Provide three-pole group operated load interrupting switched ways.

Fault Interrupting Switched Ways: Provide non-fused, non-reclosing, manual reset, vacuum interrupters consisting of vacuum interrupter and a spring assisted operating mechanism.

Each fault interrupting switched way must utilize internally mounted current transformers and an electronic overcurrent control to provide three-pole ganged tripping as indicated (in SOW) for single-phase and three-phase faults. Provide electronic overcurrent control with provisions for a minimum of ten field changeable overcurrent trip settings.

Low Voltage Test Pins: Provide load interrupting switch ways with internal load side voltage sensors and external test pins that allow for low voltage checks to confirm energized and in-phase conditions using a standard high-impedance voltmeter.

Dead-Front High-Voltage Bushings: IEEE 386. 15 kV, 95 kV BIL. Provide 600 ampere one-piece deadbreak apparatus bushings for each switched way. Provide a parking stand near each dead-front bushing.

Insulated High-Voltage Connectors: IEEE 386. Provide corresponding connector for each switched way. Provide a grounding eye and test point on each connector.

600 Ampere deadbreak connector ratings: Voltage: 15 kV, 95 kV BIL. Short time rating:

25,000 rms symmetrical amperes. Provide connectors with 200 ampere bushing interfacing.

Make and Model: Pad-Mounted Style, 624 Configuration Vista Switchgear by S&C Electric Company or equal.

Installation:

Submit shop drawings and catalog cuts before ordering.

Provide an extended concrete pad for the mounting of the pad-mounted switchgear unit complete with four (4) bollards. See attached details. Shutdowns will not be provided for the pad extension work.

Provide ground new loop complete with all necessary tests and reporting. See attached details.

Conduct all field visual and mechanical inspections. Compare equipment nameplate information with specifications and approved shop drawings. Inspect physical and mechanical condition. Check for proper anchorage, alignment, required area clearances, and grounding. Perform mechanical operator tests in accordance with manufacturer's instructions. Verify that insulating SF6 gas pressure is correct. Inspect all indicating devices for proper operation.

Conduct all field electric tests and submit reports. Perform contact-resistance tests. Trip fault interrupters by operation of overcurrent control. Perform insulation-resistance tests. Perform an over-potential test on each switched way pole with the switched way in the open position in accordance with the manufacturer's instructions.

Provide all bonding.

Provide all labeling as follows:

c) All pad mounted gear units: switches and sectionalizers: existing and new:

All safety labels (high voltage, arc flash, etc) as required by codes and industry

Name Labels: Bold black 34 font size lettering on orange background attached to front of unit. Indicate voltage.

Diagram showing bus and ways: Indicate destination of each way.

Grading of line-weights shall be in descending order from bus, 600 A ways and 200A ways. Drawing and lettering (bold 16 size font) shall be black on an orange background. Minimum size of diagram shall be 8”X 11”. Install the diagram on the top cover of gear unit for units less than 36” in height and on the front for those which are taller.

All labeling products shall be commercially available industry standard products suitable for outdoor use. Submit samples of diagram, lettering, tag and other materials for approval.

d) All primary cables existing (new and existing) terminated in all (existing and new) pad mounted switchgear units: Provide disc-type cable tags (non-metallic, rated for constant immersion in water) attached to cable showing their destination.

Conduct all field visual and mechanical inspections. Compare equipment nameplate information with specifications and approved shop drawings. Inspect physical and mechanical condition. Check for proper anchorage, alignment, required area clearances, and grounding.

Perform mechanical operator tests in accordance with manufacturer's instructions. Verify that insulating SF6 gas pressure is correct. Inspect all indicating devices for proper operation.

Conduct all field electric tests and submit reports. Perform contact-resistance tests. Trip fault interrupters by operation of overcurrent control. Perform insulation-resistance tests. Perform an over-potential test on each switched way pole with the switched way in the open position in accordance with the manufacturer's instructions.

Provide elbow inserts. Reconnect existing cables.

Engage the services of pad-mounted switchgear manufacturer to program the electronic trips and fault interrupter overcurrent control to achieve coordination with upstream/downstream fuses and other overcurrent devices. Overcurrent device settings will be provided by the Government.

S&C Vista Trip Setting Selection Chart to Provide Protection for Individual Transformers

Transformer 1-Phase Rating (kVA)

Transformer 3-Phase Rating (kVA)

3-Phase Full Load

Line Current

E-Speed Setting

(amperes)

15 45 2.08 25

25 75 3.47 25

37.5 112.5 5.21 25

50 150 6.94 25

75 225 10.42 25

100 300 13.89 25

167 500 23.15 30

--- 750 34.72 50

--- 1000 46.30 65

--- 1500 69.45 100

--- 2000 92.60 125

Attachments to SOW:

Contract and Reference Drawings

Typical Installation Details: Use these details to perform the specific items of work described in the SOW. Contractual obligation regarding these details is strictly limited to those specific items of work described in the SOW.

Pad Mounted Switches:

NOTES FOR PADMOUNT SWITCH CONCRETE PAD.

1. The concrete pad shall extend 36 inches beyond the switch at the back and front of the switch and 18 inches at the sides

2. Use Class ‘A’ concrete for concrete pad.

NOTES FOR EXTENDED PADMOUNT SWITCH CONCRETE PAD.

1. The concrete pad shall extend 36 inches beyond the switch at the back and front of the switch and 18 inches at the sides.

2. Provide welded wire fabric under the extended pad and dowel the fabric to the existing concrete pad every 12”.

3. Use Class ‘A’ concrete for extension.

4. Demolish existing bollards and provide new bollards at four corners of concrete pad.

5. Apply sealant between old and new sections of concrete pad. The joint sealant shall be

Dow Corning® 890-SL Silicone or equal

END of SOW