36C24218Q0077-001.doc

Statement of work

Automatic Transfer Switch Maintenance

General Scope of Work: Stratton VA Medical Center in Albany, New York is requesting quotes for a certified manufacturer’s representative to perform maintenance on the Automatic Transfer Switches in the Medical Center. The government is currently contemplating the establishment of a base plus four (4) option years contract. Switches are of various sizes and in various locations for emergency power distribution.

NFPA 8.3.5

Maintenance shall be performed according to manufacturer’s recommendations. In the absence of such recommendations, the list given in 8.3.5 suggests minimal procedures. Transfer switches should be subjected to an annual maintenance program including:

· One major maintenance

· Quarterly inspections.

Programs shall include all of the following operations where applicable:

Note: Due to the critical nature of these devices, permission shall be gained to perform these tasks since some of the following recommendations could cause disruption of power to the load. The following tasks shall be carefully reviewed with facility management personnel to ensure agreement and plan for contingencies.

1. Major Maintenance:

a. Check connections.

A thermographic or temperature scan shall be done prior to this visit, while the ATS is under normal (peak) load. This thermographic scan shall be repeated during the EPSS load test. Results shall be available to the maintenance provider so that suspect conditions can be addressed during this activity.

With power connected to the normal source, measure and record millivolt drop levels across each pole.

Note: Any reading that is greater than 25 percent of the average of all poles shall be carefully inspected when the ATS is de-energized.

With power connected to the emergency source, measure and record millivolt drop levels across each pole. Note: Any reading that is greater than 25 percent of the average of all poles shall be carefully inspected when the ATS is de-energized.

If the ATS is equipped with a bypass isolation feature, operate the bypass to the connected source (emergency or normal) and repeat the steps in (a), (b), and (c). Levels shall drop to approximately 50 percent of initial levels and be uniform relative to initial readings. This step verifies that the bypass feature is properly connected and that the connected load will not be affected when the automatic portion is isolated for maintenance.

With power secured and both the emergency and normal sources properly locked out and tagged out, measure the micro-ohm resistance levels across the following connection points:

i. Emergency source cabling lug to bus

ii. Normal source cabling lug to bus

iii. Load cabling lug to bus

iv. Neutral cabling lug to bus

v. Load connected to normal across each pole

vi. Load connected to emergency across each pole Note: If the ATS is equipped with an isolation bypass and the bypass remains energized, perform these tests on the isolated transfer switch unit only.

DO NOT APPLY DIGITAL LOW RESISTANCE OHMMETER (DLRO) TO ENERGIZED CIRCUITS. Any value greater than 20 percent of the average value of all similar type connections requires further investigation.

b. Inspect or test for evidence of overheating or excessive contact corrosion.

With power from both sources secured and properly locked out and tagged out, remove all protective pole covers and arc chutes. Carefully inspect main contacts and other current carrying parts for signs of corrosion or overheating. Note: Observation shall correlate with previous results (i.e., thermographic or temperature evidence of higher than normal temperatures or heat migration, abnormal millivolt drop readings as previously noted, or abnormal micro-ohm (DLRO) readings as previously noted).

Carefully inspect insulating materials or standoff insulators for signs of contamination (dirt, grime, oil, etc.). The combination of contaminants and possible introduction of high humidity or moisture could lead to insulation breakdown and subsequent destructive faults. Clean contaminated Inspect control connection, plugs, and harnesses for signs of corrosion, heat, contamination, and so forth.

Using a vacuum, remove all dust and debris from the ATS cabinet, transfer switch mechanism, bus, and so forth.

Note: Never use compressed air to blow outdust. Doing so can blow dust and debris into controls and the transfer switch mechanism.

Inspect cabinets for proper sealing. Open conduit knockouts or other penetrations shall be properly sealed to prevent the introduction of dust, moisture, or other alien matter. Enclosures installed outside shall be inspected for proper seal and appropriate gasketing. Ensure that enclosure door securing devices are intact and properly secured.

Replace and secure all protective pole covers and chutes. Remove lockout devices and resupply normal power. If the ATS is of the bypass isolation type, reconnect the transfer switch mechanism. Observe proper manufacturer’s procedures.

c. Verify control and feature set points and operation.

Measure and record the following data and set points:

a. Normal source voltage phase to phase, phase to ground, and phase to neutral

b. Engine start time (from crank start to source available light or relay pickup)

c. Emergency source voltage phase to phase, phase to ground, and phase to neutral

d. Load current each phase

e. Momentary override normal deviation where provided

f. Transfer time delay where provided

g. Return to normal source time delay where provided

h. Engine cooldown where provided

Security Requirements: All employees of general contractor and subcontractors shall comply with VA security management program and obtain permission of the VA COR, be identified by the contract and employer, and restricted from unauthorized access.

Contractor vehicles shall be parked in designated areas of the campus. Request from the VA COR will be needed when picking up and dropping off materials and supplies, if necessary.

Performance Monitoring: Performance monitoring shall be conducted by the designated VA COR in accordance to OEM specific guidance; and all salient characteristics as described by this statement of work. VA COR shall inform the CO of any discrepancies. No payments shall be made before acceptance by designated VA COR representative occurs.

Place of Performance.

Albany-Stratton VA Medical Center

13 Holland Avenue

Albany, NY 12208

Period of Performance. Period of performance is 01/01/2018 to 12/31/2018.