Transformer-revised_SOW_08_02_2024_0002.pdf

Project Work Statement (PWS) 4160V 208/120 300kVA Step-Down Transformer in Fort Wadsworth in the Staten Island

Unit of Gateway N.R.A. Revised 2 August 2024

Fort Wadsworth has two high voltage main feeds located at Bay Street and New York Avenue and McClean Avenue and Battery Road. The main feeds are supplied by ConEd and energize the high voltage electrical distribution system. The distribution is made of 4160V switches and 4160V, 208/120 step down transformers.

2.0 Scope

The 300kVA 4160/120/208 transformer provided feeding power to two USCG housing buildings on

Florida Court is leaking coolant oil. The oil has been contained. GATE requires the transformer be replaced by a licensed electrical contractor. The leaking transformer will be removed from the existing mounting pad and a new transformer will be replaced in kind. This requirement does not require excavation or concrete placement. The service is limited to work in DIV 26, Electrical.

3.0 Objectives

This action is intended to replace the leaking transformer. This will allow for continued, uninterrupted electrical service to the USCG housing units and stop the oil from leaking onto the pad and possibly the soil in the area around the transformer.

4.0 Tasks

1. Contractor shall disconnect power at the switch to the East of the leaking transformer.

2. The Primary and Secondary cables shall be disconnected and made safe.

3. The existing transformer shall be removed from the slab. The existing transformer shall become the property of the contractor. The contractor shall be responsible for disposal of the failed transformer in accordance with Local, State, and Federal Guidelines.

STATEMENT OF WORK

1.0 Background

2.0 Scope

3.0 Objectives

4.0 Tasks

Service Requirements 5.0

6.0 Security

Place of Performance 7.0

8.0 Period of Performance

9.0 Payment

1.0 Background

4. The contractor shall provide a 4160V, 120-208 300 kVA transformer, all labor, equipment, and PPE necessary to remove the existing transformer, safely transport, mount, connect, energize, and test the new transformer.

5.0 Service Requirements

6.1 Bid Requirements

1. No official Pre-bid meeting is schedule. If a potential bidder would like to visit the job site, please contact Rafael Hernandez (c) 347-672-3080 or by email at rafael_hernandez@nps.gov.

2. Bid packages shall include an electrical trade license.

3. Bid packages shall include 3 past performance references illustrating relevant experience. Relevant experience is defined as work involving repair, installation, modification of primary and secondary power supply.

4. Bid packages shall include a tentative schedule based on equipment lead times.

6.2 Post Award Division 1 Submittals

1. Safety plan:

i. Safety Plan to include overhead lift procedures for removal and replacement of the transformer.

ii. Safety Plan to include procedure for de-energizing the transformer, proper

PPE for employees working around Primary and Secondary power.

2. Work Schedule

3. Certificates of Insurance

6.3 Materials and Equipment Submittals

1. Transformer specifications

2. Any connection hardware specifications for connection of Primary and Secondary power at the transformer.

3. One-year parts and labor warranty on equipment.

4. At a minimum, transformers shall be designed and manufactured in accordance with these specifications and applicable sections of the latest edition of NEMA, ANSI, NEC, and any other applicable standard governing transformers. Units containing rebuilt, used, remanufactured or reconditioned parts will be accepted.

5. 3-year limited warranty on equipment.

6.4 Work Requirements

1. All work shall take place between the hours of 7:00 A.M. and 5:00 P.M., Monday through Friday. Weekend shall only be approved with a written request to the

COR.

2. All employees shall be in proper PPE including high visibility vests when working near vehicle traffic lanes.

3. Contractor shall not be given access to Government Buildings unless accompanied by an NPS employee.

4. The existing transformer shall become the property of the Contractor. The

Contractor shall be responsible for following Local, State, and Federal Guidelines when disposing of the transformer.

6.0 Security

1. The Contractor shall not have possession of keys to any buildings or equipment enclosures while performing work.

2. The Contractor shall not have access to any Government Buildings with out an escort from NPS or USCG personnel.

7.0 Place of Performance

Work took place on Fort Wadsworth in the Staten Island Unit of Gateway National Recreation Area. The specific location of the transformer is attached to the PWS.

8.0 Period of Performance

July 27, 2024-January 27, 2025

9.0 Payment

The contractor shall submit a paid invoice for the transformer to receive payment for materials. Final

Payment will be approved when all wok has been accepted by the COR.

Florida Court

Transformer Location