1305M2Q0025_-_Statement_of_Work.pdf

Attachment A

STATEMENT OF WORK

FOR

ELECTRICAL SYSTEM REPAIR AND

MAINTENANCE SERVICES

NOAA Disaster Response Center 7344 Zeigler Blvd. Mobile, AL 36608

February 24, 2025

STATEMENT OF WORK

FOR

ELECTRICAL SYSTEM REPAIR AND MAINTENANCE SERVICES

1. DESCRIPTION OF SERVICES. The contractor shall provide all personnel, equipment, tools, supervision, and other items and services necessary for electrical system preventative maintenance and repair is performed at the NOAA Disaster Response Center (DRC) to ensure the electrical system remains fully functional and properly maintained. These services shall include monthly, quarterly, semi-annual, and annual preventative maintenance recommended by the manufacturer as well as necessary repairs.

All scheduled tests and inspections shall occur on a day pre-determined by the DRC Government Contact Point (GCP) and the contractor. A schedule of services for the contract year shall be developed by the GCP and coordinated with the contractor within 10 days of the start of each period of performance. On-site work shall be conducted during normal business hours of 8 a.m.

to 4:30 p.m. on the pre-determined day of the normal work week of Monday – Friday, excluding Federal holidays.

1.1. MAINTAIN GENERATORS. All tests, inspections and repairs shall be performed and accomplished by an authorized Cummins service professional in accordance with the Cummins QSX15 Series Engine Operation and Maintenance Manual.

1.1.1. Monthly generator inspection and maintenance.

• Exercise both generators for 30 minutes each at 30% load rating.

• Check both generators for oil, fuel, cooling and exhaust system leaks.

• With the generator set operating, inspect the entire exhaust system visually and audibly including the exhaust manifold, muffler and exhaust pipe.

• Check for leaks in the exhaust system at all connections, welds, gaskets and joints and make sure that exhaust pipes are not heating surrounding areas excessively. Document and report any suspected leaks immediately.

• Check engine oil, coolant and battery electrolyte levels. Replenish fluids as necessary.

• With the generator set operating, inspect the fuel supply lines, return lines, filters and fittings for leaks. Check any flexible sections for cuts, cracks and abrasions and make sure they are not rubbing against anything that could cause breakage. Note and report all leaks immediately.

• Check and document the following while the generators are operating: frequency, AC Voltage at no load, AC Ammeter with no load. Check that all panel lamps are illuminating.

• Check the terminals on the batteries and ensure all connections are clean and tight. Check and tighten battery vent plugs as necessary.

• Use a battery hygrometer to check the specific gravity of the electrolyte in each battery cell. Reading should be between 1.215 and 1.260. Check the electrolyte levels and fill as necessary.

• Check generator air outlet and remove any debris or obstructions. Note and report any discoloration or signs of excessive heat.

• Inspect the coolant heaters. Note and report any discrepancies.

• Inspect the battery charging system. Note and report any discrepancies.

• With the generator set stopped after testing, check for loose belts, fittings, leaking gaskets and hoses or any other signs of mechanical damage. Document and report any problems immediately.

1.1.2. Semi-annual generator inspection and maintenance.

• Inspect drive belts and air cleaners. Replace parts as needed.

• Inspect radiator hoses for wear and cracks. Replace as needed.

1.1.3. Annual generator inspection and maintenance.

• Conduct a generator set manual start test and a with-load standby system test.

• Drain and change fuel filters.

• Change engine oil and filters.

• Change water coolant filter.

• Clean crankcase breather.

• Clean cooling systems.

• Check the zinc plugs in the heat exchanger and replace if they are eroded to less than half of their original length.

1.2. MAINTAIN CUMMINS GENERATOR TRANSFER SWITCH. All tests, inspections and repairs shall be performed and accomplished by an authorized Cummins service professional in accordance with the Cummins T-011: Transfer Switch Application Manual.

1.2.1. Monthly transfer switch testing.

During the monthly testing of the emergency power system, the contractor shall also test the exercise sequence of the transfer switch.

• Transfer switch shall signal the generator set to start, monitor the generator set as it starts, and transfer load to the generator set.

• When the test is complete, the transfer switch shall transfer load back to the normal service and shut down the generator set after a cool-down period.

• Test can be initiated by either manual operation or automatic time clock.

• Test shall verify that the generator set will start and carry load and verify the ability of the transfer switch to detect a power failure and mechanically connect to the alternate power source.

1.2.2. Annual transfer switch testing and maintenance.

Annual testing shall be conducted to meet NFPA 110 and NFPA 70B requirements for automatic transfer switches.

• Disconnect power from both the generator source and utility source and ensure these sources are locked out and tagged for safety.

• Vacuum and clean the switch cabinet to remove all dirt and debris from the enclosure.

• Thoroughly clean the transfer switch, taking care to prevent liquid from entering external switches or the interior of the cabinet.

• Inspect the switch for carbon tracking, cracks, corrosion, or any other type of deterioration. Document and report any problems immediately.

• Covers over the contact mechanisms shall be removed and the contacts shall be inspected for abnormal wear or degradation. Document and report any problems immediately.

• After the transfer switch is cleaned and reassembled, all the power and control connections shall be checked for deterioration and re-torqued according to manufacturer’s specifications. In particular, check for wear on wiring which goes across doors and any wiring which is connected to a moving part.

• When maintenance is completed, a full power failure test shall be completed.

• The power supply to the facility shall be physically opened, so that the generator set and power transfer system must function exactly as in a real power failure situation.

• Verify that all the critical support equipment is connected to the generator power and the generator can start and run critical loads.

1.3. MAINTAIN AVTRON LOAD BANK. All tests, inspections and repairs shall be performed in accordance with the AVTRON MODEL K675A Outdoor Resistive Load Bank Manual.

1.3.1. Quarterly load bank maintenance, inspection and testing.

• Remove any restrictions to the airflow through the Load Bank.

• Check the screens to make sure that no objects have blocked or entered the openings.

• Verify that the airflow is in the proper direction.

• Assure that there is no recirculation of the exhaust air through the Load Bank.

• Verify that all heaters and temperature switches are functional.

• Remove the access panels and screens, and inspect the load resistors for mechanical breakdown which is demonstrated by excessive sagging of the elements. Replace worn resistor elements with new resistor elements as required.

• Inspect for broken ceramic insulators. Replace any broken or cracked insulator with a new ceramic insulator.

• Inspect for loose hardware or loose connections. Tighten where required.

• Inspect all connections for oxidation or corrosion. Clean the connection or replace the hardware where required.

• Verify that the AIRFLOW switch works properly.

• Inspect all magnetic contactors to make sure that the contacts are not severely pitted or corroded. The contacts must move freely and be properly seated.

• Clean all dirt and debris out of the Load Bank. This can be accomplished by blowing the inside of the units with clean, dry compressed air (not to exceed 40 PSI). Eye protection should be worn when cleaning the Load Bank with compressed air.

• Inspect all the wiring for any sign of insulation failure.

• Replace all access panels and screens. Tighten all the fastening hardware securely.

• Check the indicator lamps on the control panel.

1.3.2. Annual load bank maintenance, inspection and testing.

• The fan/blower motor should be lubricated per the motor manufacturer’s requirements and specifications on the motor nameplate if applicable.

1.4. MAINTAIN CUTLER-HAMMER PANELBOARDS. All tests, inspections and repairs shall be performed in accordance with the NEMA Standards Publication ANSI/NEMA PB1.1- 2002, General Instructions for Proper Installation, Operation, and Maintenance of Panelboards Rated 600 Volts or less.

1.4.1. Annual maintenance, inspection and testing.

Annual service shall be provided in August of each year.

• Clean out any accumulation of dust and dirt using a brush, vacuum cleaner or clean lint-free rags.

• Visually inspect electrical joints and terminals in the bus and wiring system. Repair and/or adjust as necessary.

• Visually inspect all conductors and connections. Clean and adjust as necessary. Parts which show evidence of overheating or looseness shall be cleaned and re-torqued or replaced as necessary. Ensure all nuts and bolts are tightened at bus joints to manufacturer’s torque specifications.

• Examine fuse clip contact pressure and contact means. Replace any fuse clips that show signs of overheating.

• Re-lighten plug fuses.

• Check circuit breakers, switches and fuses to ensure they have the proper ampere, voltage and interrupting ratings. Adjust or replace as necessary.

• Operate each switch or circuit breaker several times to ensure that all mechanisms are free and in proper working order. Replace as required.

• Check the operation of all mechanical components and replace as required.

• Exercise switch operating mechanisms and external operators for circuit breakers to determine that they operate freely to their full on and off positions. Adjust or replace as necessary.

• Check the integrity of all electrical and mechanical interlocks and padlocking mechanisms. Adjust or replace as necessary.

• Check devices for missing or broken parts, proper spring tension, free movement, corrosion, dirt and excessive wear. Adjust, repair or replace as necessary.

• Clean and dress readily accessible copper electrical contacts, blades and jaws according to the manufacturer’s instructions when inspection indicates the need.

• Look for and note any moisture or signs of previous wetness or dripping inside the cabinet.

• Seal off any conduits which have dripped condensate, and provide means for further condensate to drain away from the panelboard if required.

• Seal off any cracks or openings which have allowed moisture to enter the enclosure.

Eliminate the sources of dripping on the enclosure and any other source of moisture, if required.

• Replace or thoroughly dry and clean any insulating material, which is damp or wet or shows an accumulation of deposited material from previous wettings.

• Inspect all component devices for moisture damage. Note findings.

• Test the ground fault protection system in accordance with the manufacturer’s instructions and note findings.

• Check insulation resistance if any of the following have occurred: severe short circuit, replacement or cleaning of insulating surfaces, panelboard has been exposed to high humidity, condensation or dripping moisture.

Note - All adjustments, cleaning and replacement of parts shall be done in accordance with the manufacturer’s instructions. Only clean nonmetallic light grease or oil shall be used.

1.5. MAINTAIN EATON DRY-TYPE DISTRIBUTION TRANSFORMER.

All tests, inspections and repairs shall be performed in accordance with the Eaton Instructions for Installation, Operation, and Maintenance of Dry-Type Distribution Transformers.

1.5.1. Semi-Annual maintenance, inspection and testing.

Semi-annual service shall be provided in February and August of each year.

• Clean terminations and vents.

• Inspect insulators, terminals, terminal boards for tracking (discharge)/breaks/cracks or burns. Clean and repair as necessary.

• Check terminal quality and connections, including taps for tightness. Replace and adjust as necessary.

• Inspect ground connections and ground contact surfaces. Adjust and repair as necessary.

• Check for moisture impacts.

• Inspect paint finish for scratches, wear and corrosion. Repair as necessary.

1.6. EMERGENCY AND NON-EMERGENCY REPAIRS TO ELECTRICAL SYSTEMS.

Perform any repairs to electrical systems or components that are necessary or recommended in order to maintain optimal functioning of the electrical system. These repairs may be the result of contractor recommendations following routine inspections or may be due to failures of the equipment or operating system. All electrical services shall be performed by a state licensed electrician.

The contractor shall stock commonly used repair items and shall have a network of suppliers that will deliver ordered items without delays. All repairs shall use supplies, materials and parts of the highest quality available appropriate for the repair of the given equipment or system. Any replacement part used shall be of comparable or higher quality. Energy consuming items shall be the most efficient in their class. Any replacement motors shall be of premium efficiency.

Whenever motors are replaced, motor size shall be recalculated and replacement motor selection must reflect the appropriate size. Any installed replacement equipment or component shall remain the property of the Government. All literature including, but not limited to, guarantees, warranties, installation manuals and operation manuals, accompanying new equipment or components shall be given to the Government Point of Contact (GPOC). The Government reserves the right to furnish the contractor any or all parts and materials required for reimbursable repairs.

The contractor shall use the contractor’s applicable labor hourly rates provided for under this purchase order. Costs shall be calculated using applicable labor rates in the price schedule. Parts and materials shall be the manufacturer published price or invoice cost, whichever is less.

Material price shall be reduced by all discounts and rebates for core value or salvage value that accrue to the contractor. Where there is no manufacturer published price list, the contractor shall be reimbursed at invoiced cost plus normal shipping and mailing costs. Special handling including, but not limited to, supplier delivery and premium freight, require advance approval from the GPOC. Subcontractor costs and parts and materials costs shall be passed through directly without application of mark-ups by the contactor. Where labor is obtained from a subcontractor and such labor is a type itemized in the price schedule, the contractor may charge the Government no more than the price schedule rates regardless of actual subcontractor labor costs.

Written work authorization requests numbered sequentially will be used by both the Government and contractor for repair work or emergency work to be performed. Work requests from the Government will include, but is not limited to, requests to correct or perform a particular task, request a quote, and perform rework of defective service. The contractor shall provide exact location, costs for parts, materials and equipment, number of labor hours required and cost, and description of any additional materials, equipment or tasks that are necessary to accomplish the overall work. Description of work specifics shall be included. If the contractor elects to perform work or portions thereof outside normal business hours, payment shall be made at the price provided for work permitted during normal business hours. Work authorization requests approved by the GPOC will be returned to the contractor authorizing performance of work. The contractor shall return completed work authorizations to the GPOC upon completion of the work and prior to submitting an invoice. A work authorization form will be provided to the contractor upon contract award and shall be used along with the contractor’s service call log to ensure work completion. Subject to the dollar limitations in the below paragraph, if the GPOC determines that the repair is an emergency, the GPOC may verbally authorize the contractor to perform repairs. The contractor shall submit a work authorization request the next business day.

Single repairs less than $7500.00 or cumulative repairs less than $7500.00 in a given year may be requested and authorized under this purchase order by the GPOC. No work, emergency or non-emergency, may be performed without a modification to the purchase order or a Notice To Proceed, either verbally or in writing, is issued by a Contracting Officer in advance if a single repair exceeds $7500.00 or the cumulative repairs in a year exceeds $7500.00. If the purchase order has been modified to increase the Not-To-Exceed (NTE) value for emergency and non-emergency work, the GPOC is permitted the authorize work up to the modified NTE value.

An on-site response time of not more than 4 hours from notification by the Government is required for emergency services. The contractor shall be compensated for the additional work at the hourly rate in the schedule. The contractor may also be eligible for industry standard service call fees. This work shall be completed during normal work hours.

Electronic components at DRC facility

Cummins QSX15 Series generators

Generator transfer switches

Avtron Load Bank

Model K675A/D45383

Rating 350 kW, 480 V, 3 phase, 60 Hz

Cutler-Hammer Panelboards

Eaton Dry-Type Distribution Transformer