SO25-003_A_TROUBLESHOOT HV CIRCUIT BREAKERS.docx

USNS Washington Chambers

( TAKE 11 )

TROUBLESHOOT SS SWITCHBOARD CIRCUIT BREAKERS

1.0 ABSTRACT:

This item describes the requirement to troubleshot, repair three High Voltage Switchboard Circuit breakers.

2.0 REFERENCES:

2.1. Technical Manual T9235-AL-MCC-010, Main Power Switchboard, 6.6 KV, 2500A

2.2. Test Cabinet for EATON, I.L. 32-275-4G, Instructions for Installation, Operation and Maintenance of Type VCP-W Vacuum Circuit Breaker

3.0 LOCATION/DESCRIPTION:

3.1 Location/Quantity: USNS Washington Chambers (T-AKE 11)

Naval Station Guam, Kilo Pier

3.2 Manufacturer: Westinghouse/Eaton 8349A38G06

4.0 GOVERNMENT FURNISHED EQUIPMENT/MATERIAL/SERVICES: None

5.0 NOTES

5.1 The contractor and all subcontractors regardless of tier shall consult the General Technical Requirements (GTR) to determine their effect on the work items in this work package, which may be effected by the requirements of this item.

5.2 The contractor and all subcontractors, regardless of tier, are advised to review the other Work Items under this contract to determine their effect on the work required under this Work Item.

5.3 This ship contains High Voltage (HV) electrical systems. The contractor and subcontractors shall obey all posted and verbal instructions regarding safety and exclusion from High Voltage areas. At no time shall a contractor or subcontractor approach, work on, or enter a High Voltage area without proper authorization.

5.4 THE T-AKE CLASS ELECTRICAL COLOR CODING DOES NOT FOLLOW CONSISTENT COLOR SCHEME. THE SHIP IS KNOWN TO HAVE CURRENT CARRYING CONDUCTORS COLORED GREEN, BLUE, BLACK, AND WHITE. ASSUME ALL ELECTRICAL CABLES ARE ENERGIZED UNTIL TESTED AND PROVEN OTHERWISE. TEST ALL ELECTICAL CABLES TO ENSURE THEY ARE DE-ENERGIZED PRIOR TO WORKING ON THE ITEM.

5.5 To gain access to the ship, all contractors that will be performing work on the ship must submit their name and security information as follows:

5.5.1 Email Ship Access Requests on company letterhead to the SSU Guam Port Engineer with the following information:

5.5.1.1 US Citizen Contractors: Full Name; Last 4 SSN; Passport and expiration date; Ship Attending; Reason for Visit; Dates requiring access.

5.6 Performance Period: 05 DEC 2025-15 DEC 2025

5.7 Performance Location: Naval Station Guam, Kilo Pier

5.8 Port Engineer Contact information:

Michael Natole Port Engineer USNS Washington Chambers (T-AKE 11)

(757) 443-0947 Office

(757) 895-9254 Cell michael.d.natole.civ@us.navy.mil

Hannah Hill SSU Guam Port Engineer

(671) 339-3032 Office

(671) 929-5650 Cell hannah.m.hill.civ@us.navy.mil

6.0 QUALITY ASSURANCE REQUIREMENTS: None additional.

7.0 STATEMENT OF WORK REQUIRED:

7.1 Provide services of a qualified Marine Electrical Specialists, labor personnel, and tools. The Rep shall be experienced with the T-AKE Class and it’s HV switchboards and load centers.

7.2 Marine Electrical Specialists are required to hold a valid certification of approved high voltage qualification, must be certified as an original Equipment Manufacturer (OEM) Service Repair rep, and have previously performed the associated work on T-AKE Class vessels.

7.3 Troubleshoot and repair two high voltage circuit breakers tripping without obvious cause.

7.4 Inspect the primary disconnects for evidence of burning, erosion, or damage.

7.5 Test the closing and tripping device including disconnects of the circuit breaker twice. Identify any defective device.

7.6 Reinstall Breakers into switchboard with assistance from ships force.

7.7 Assume for bidding purposes that three days of onsite support will be required.

7.8 Submit completion reports to the Chief Engineer and MSC rep. within 2 weeks of repair completion.

7.9 Recommended sources:

7.9.1 Point Eight Power

7.9.2 Powergen

7.9.3 Custom Pannel

8.0 GENERAL REQUIREMENTS: None additional.

SO25-003 - 1