Circuit breaker testing and maintenance service is needed to ensure the safety and performance of all buildings, equipment, and services that rely on a properly maintained circuit breaker system. C.W.... Circuit breaker testing and maintenance service is needed to ensure the safety and performance of all buildings, equipment, and services that rely on a properly maintained circuit breaker system. C.W. Bill Young VA Medical Center FMS department needs the contractor to perform all testing, maintenance, and repairs pertaining circuit breaker system in all locations as provided within this performance work statement. This solicitation will be a SDVOSB set aside, a site visit is highly recommended, the dates and times for the site visits are; Thursday 06/08/2023…..10:00a.m., Thursday 06/15/2023…..10:00a.m and Thursday the 22nd of June after 11:00a.m.. Contact Steve Mcculley via email at Steven.Mcculley@va.gov, for questions and /or specifics.
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4.SCOPE: C.W. Bill Young VA Medical Center FMS department will require the contractor to meet the performance requirements as listed below in sections 5-22 and the sub sections contained within. For a... 4.SCOPE: C.W. Bill Young VA Medical Center FMS department will require the contractor to meet the performance requirements as listed below in sections 5-22 and the sub sections contained within. For a period of one base year and 4 options years as needed and determined by the requiring service. 5. BREAKER TESTING a. The work to be performed under this specification shall consist of furnishing all labor, tools and specialized equipment required for complete testing, maintenance, and inspection of electrical equipment and systems as further described in this specification. b. The contractor shall be responsible for securing all manufacturers’ information, curves, data, procedures, and any other information necessary to conduct specific tests on equipment and systems. c. The contractor shall be responsible for maintaining coordination between the station supervisory personnel and test personnel for scheduling shut-downs, system tests, tests on system components, etc. d. The contractor is to provide a Qualified Field Engineer and a qualified Electrician to perform the work outlined in these specifications. A qualified Field Engineer is defined as a Graduate Electrical Engineer with at least two years of experience in the inspection and testing of Power Distributions Systems. A qualified electrician is defined as an electrical Journeyman with at least two years of electrical testing experience on Power Distribution Systems. e The Department of Veterans Affairs will provide a staff electrician to work with the contractor in the detailed scheduling of work, planning power outages and performing equipment de-energizing or switching operations as required only. f. The work is to be performed in such a manner as to interrupt the hospital normal operation as little as possible. g. The contractor shall provide a written schedule of the dates and times when it is necessary to have the items listed in Appendix D de-energized. h. A written schedule must be received by the Contracting Officer 30 calendar days in advance of the date the work is to begin so that the services and areas may be notified. Failure to provide the required written advance notification may be cause for disapproval to perform the work on the date and time scheduled. No claim for extension of time will be granted for the contractor's failure to provide the advanced written notification. Once the testing work has begun it will continue without interruption and completed within ten (10) workdays. 6. SAFETY: a. It shall be the responsibility of the contractor to take such steps as to assure the prevalence of the highest degree of safety while on the job. The contractor shall provide adequate safety equipment, PPE, and instructions to protect his employees, owner's employees, and property. The Contractor will follow the procedures in NFPA 70E. It shall also be the responsibility of the contractor to coordinate this work with the station supervisory personnel. b. Lock out/Tag Outs will be used to secure circuit breakers and switches from closing during inspections and testing. c. All maintenance and testing will be done on apparatus de-energized from the commercial A.C. service. Where temporary feed for power is required to keep vital circuits in continuous operation, provision shall be made to isolate these circuits from the equipment being serviced. Isolation of these circuits will be done only with prior approval of a facility’s representative familiar with the system. Prior to any testing, all incoming power cables will be checked to determine that all electrical power has been removed and determine that the temporary leads ARE NOT BACKFEEDING into the equipment being serviced. d. Contractor shall have an experienced supervisor available on job site during testing. Contractor shall provide all safety equipment deemed necessary by its safety practices to adequately protect its personnel. A ground lead of proper size shall be connected to all test apparatus prior to its use. There shall be available sufficient fire extinguishers. e. The contractor shall keep the premises free from accumulations of waste material or rubbish caused by his work. At the completion of the work, he shall remove all his rubbish from and about the building. All tools and surplus material shall be removed and he shall leave his work "BROOM CLEAN" unless more exactly specified. Clean up work shall include the entire site and any repairs in splash beds, driveways, fences, gates, grounds, or adjoining property that may be damaged by the contractor. Any material for which the contract is responsible which is blown or landed on adjacent areas shall be removed. f. The contractor shall be responsible for all damage or injury to property of any character resulting from any act, omission, neglect or misconduct in his manner or method of executing said work, or at any time to defective work or materials and said responsibility shall not be released until the work shall have been completed and accepted. g. When or where any damage or injury is done to public or private property including roads, streets, etc., all on account of any act, omission, neglect, or misconduct, and the execution of the work, or in consequence of the non-execution thereof on the part of the contractor he shall restore, at his own expense, such property to a condition equal to that existing before such damage or injury was done. He shall repair, rebuild or otherwise restore all properties as may be directed. He shall make good such damage or injuries in an acceptable manner. 7. MECHANICAL INSPECTION OF EQUIPMENT: Outdoor and indoor substations, switches, motor control centers, panelboards, breakers, meters, and relay panels, etc., shall be visually inspected using the following basic format: a. Visual Inspection - Interior and Exterior. b. Vacuum Cleaning - Interior and Exterior. c. Lubricate all hinges and lock on panels and substations. d. Check for loose breaker termination nuts, bolts, screws, fittings, hardware, wire terminations. e. Check for loose broken, cracked, chipped, missing, discolored, fatigued, pitted, worn hardware, sliding tracks, fittings, catches, hinges, safety catches, barriers, handles, levers, blades, contracts, mechanical linkage, hydraulic linkage, shafts, bearings - Interior and Exterior. f. Check for loose broken, cracked, chipped, missing, discolored, fatigued, pitted, worn insulation, insulating tapes, insulated epoxy coatings, insulating fittings, bushings, coverings, cases, insulated handles, etc. g. Inspect and clean main arcing contacts in accordance with manufacturer's instructions and recommendations and check for proper, smooth operation. h. Inspect and test key-type interlocking mechanism for designed function. i. Circuit breakers are subject to a number of disabling factors that can render them unfit to perform the protective service normally expected. Some of these more common faults are listed below in their approximate order of importance and the testing cycle should be oriented to their most effective method of detection and correction: (1) Frozen contacts and/or mechanisms - will not open automatically or manually. (2) Improper calibration - trip too fast or too slow. (600AMP and larger) (3) High contact resistance. (4) Open contacts or series elements. (5) Low leakage resistance - terminals to mounting parts (ground). (6) Broken or cracked arc chutes. (7) Excessive force required to operate manually. (8) Manually open all breakers and test for continuity. (Listed in breaker test schedule) 8. ELECTRICAL TESTING PROCEDURES AND TEST EQUIPMENT: The contractor shall be responsible for testing and maintaining all equipment and systems as delineated in accordance with approved maintenance procedures and procedures set forth in this specification. A. DOCUMENTATION OF RESULTS: The following test results, visual inspections and calibrations shall be recorded on standard printed data forms to be provided by contractor: (1) Circuit Breaker Inspection and Electrical Tests (2) Protective Relay Inspection and Electrical Tests B. TESTING EQUIPMENT Equipment Requirements: (1) All tools, manufacturer's specifications and maintenance data, information, curves, procedures, labor, solvents, cleaning agents, and lubricant. (2) For checking and testing switchgear, outdoor substation equipment, transformers, circuit breakers, protective relays, cables, meters, and associated electrical equipment the contractor shall be equipped with and furnish the following test equipment or equal: (Contractor shall furnish written statement that all equipment has been calibrated within the past year). a. Multi-Amp Circuit Breaker Test Set - Model CB-225-66 equipped with #62 synchronous timer and stabs or cables; (Mrf. Multi-Amp Corporation, Cranford, N.J.)(Or equal). b. Multi-Amp Circuit Breaker Test Set - Model MS-1; (Mfr. Multi-Amp Corporation, Cranford, N.J.)(Or equal). c. Multi-Amp Relay Test SET Model SR-51 equipped with #62 Synchronous timer; (Mfr. Multi-Amp Corporation, Cranford, N.J.)(Or equal). d. Heavy duty industrial vacuum cleaner with insulated hose and nozzle attachments. e. State of the art test equipment for testing of transformer coolant. f. State of the art test equipment for infrared test equipped with camera capable of taking hot spot pictures. C. TESTING PROCEDURES: TESTING a. Record all required data such as primary feeder number, transformer number and all nameplate data. b. Visually inspect all mechanical connections for looseness and/or evidence of corrosion. Clean, tighten and/or replace parts as necessary noting all work on the appropriate forms. c. Check all accessible current-carrying parts for evidence of overheating or pitting and correct as necessary. d. Inspect all gaskets for evidence of oil leaks and check for the proper operation of any breathing devices. e. Clean with Insulbrite all exposed insulators and bushings which will be included in the test. 9. LIGHTNING ARRESTER TESTING (BREAKER TESTING AREAS ONLY): Lightning arresters are generally sealed components, free of maintenance except for an occasional cleaning and mechanical inspection. Arrester will be cleaned thoroughly when inspecting the transformer. Tightness of all bolted connections to ground will be checked and retightened as necessary. Megger (1000v.) test value should read infinity unless internal resistors are used in the manufacture of the lightning arrester. Low reading or grounded arresters should be reported. 10. TESTING, INSPECTION AND MAINTENANCE REQUIRED FOR TRANSFORMERS (BREAKER TESTING AREAS ONLY): a. Clean primary, secondary and ground connections. b. Clean and inspect bushings. c. Inspect bushing clamps and gaskets. d. Inspect cover and hand hole gaskets. e. Check for oil leaks and broken mounting brackets. f. Check liquid level gauge for accuracy. g. Check temperature gauge for accuracy. h. Check overload indicator lamp (if used). i. Check lightning arrestors and discharge gaps. j. Check external protection, fuses, cutouts, etc. k. Check internal protection, fuses and protective links. l. Inspect load break disconnect (if used). m. Check low voltage circuit breaker. n. Inspect tap changer externally for tightness of taps and bushings and any internal inspections as possible through the inspection plates. o. Check for broken wire strands and poorly made terminal connections. 11. TESTING, INSPECTION AND MAINTENANCE REQUIRED FOR LOW VOLTAGE DRAW-OUT POWER BREAKERS (BREAKER TESTING AREAS ONLY): a. Remove from cubicle. b. Remove arc chutes. c. Inspect and clean arc chutes. d. Vacuum and clean breaker. e. Inspect breaker for defects or damage. f. Inspect for arc damage and deteriorated insulation. g. Inspect for burned and poorly mated contacts. h. Replace damaged contacts. (Government furnished) i. Check contact alignment, overtravel and contact pressure. j. Adjust contacts as necessary. k. Inspect all current carrying parts for overheating. l. Check operating mechanism for friction. m. Check for excessive wear and defective parts. n. Check trip mechanism for ease of operation. o. Check manual close, latch and trip operation. p. Check trip-free operation. q. Remove hardened lubricants. r. Re-lubricate as recommended by manufacturer. s. Check all auxiliary coils, trips, etc., for proper operation. t. Electrically test series trip units utilizing high current test device to verify that long time current tripping characteristics, short time current tripping characteristics and instantaneous current tripping characteristics conform to manufacturer's curves. u. On electrically operated breakers, check electrical closing and tripping. 12. TESTING, INSPECTION AND MAINTENANCE REQUIRED FOR MOLDED CASE CIRCUIT BREAKERS SELF-CONTAINED OR IN PANELBOARDS (BREAKER TESTING AREAS ONLY): a. Clean and inspect cover and case. b. Inspect for signs of overheating. c. Check for broken or loose terminals. d. Tighten terminal hardware. e. Operate manually and check operation. f. Test for contact resistance. g. Electrically test trip units utilizing high current test device to verify that long time and instantaneous tripping. Characteristics conform to manufacture’s curves on molded case circuit breakers 225 amp and larger and all rack in Sub-Station Breakers. Manually operate and check contact opening on all other main and branch circuit breakers. 13. TESTING, INSPECTION AND MAINTENANCE REQUIRED FOR LOW VOLTAGE FEEDER CABLES: a. Low voltage feeder cables shall be visually inspected for signs of arcing insulation breakdown or wear. 14. TESTING, MAINTENANCE, AND INSPECTION OF EMERGENCY POWER EQUIPMENT: (BREAKER TESTING AREA ONLY) a. Perform Mechanical Inspection of equipment as outlined in Paragraph 3. This inspection is limited to generator end only. b. Perform Low Voltage Power Breaker Tests where applicable. 15. INFRARED TEST (THE COMPLETE MEDICAL CENTER): a. When a hot spot is detected, a picture will be taken as to how the infrared equipment sees it and a picture as how the eyes see it. The building number, panel number and breaker or part number will be on the test report along with the pictures. b. The contractor will remove all panel covers and dead fronts, and transformer covers in the building or buildings that the breaker test is being performed. In the building or buildings that the breaker test is not being performed, the scanning will continue with the dead fronts and panel covers on. 16. TRANSFORMER OIL TEST: Dielectric breakdown voltage: ASTM D 877 and/or ASTM D 18 16. Acid neutralization number: ANSI/ASTM D 974 Specific gravity: ANSI/ASTM D 1298 Interfacial tension: ANSI/ASTM D 971 or ANSI/ASTM D 2285 Color: ANSI/ASTM D 1500 Visual condition: ASTM D 1524 Water in insulating liquids: ASTM D 1533 Power factor or dissipation factor in accordance with ASTM D 924 Remove a sample of insulating liquid in accordance with ASTM D 3613 and perform Dissolved Gas Analysis (DGA) in accordance with ANSI/IEEE C57.104 or ASTM D 3612. 17. TESTING EQUIPMENT: Tools to make these tests will be the best tools of the art for infrared testing, dielectric strength testing, water testing and picture testing. 18. REPORTS: a. The contractor's engineering department shall submit three copies of a complete detailed written report noting any equipment or system deficiencies. The report shall refer to any individual data sheets that further delineate any abnormality or deficiency. b. Where any deficiency was found to exist, the contractor will submit an immediate proposal to the contracting officer furnishing a complete description of the repair or replacement of equipment or parts necessary as well as the cost. No work will be accomplished without the prior written authorization of the contracting officer.
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