H261--Triennial Electrical Distribution System Testing
Page 3 of 6 STATEMENT OF WORK (SOW) Inspection, Testing and Maintenance of the Electrical Power Distribution System for the Department of Veterans Affairs, LTC Charles S. Kettles VA Medical Center, lo... Page 3 of 6 STATEMENT OF WORK (SOW) Inspection, Testing and Maintenance of the Electrical Power Distribution System for the Department of Veterans Affairs, LTC Charles S. Kettles VA Medical Center, located in Ann Arbor, Michigan (AAVAMC) 1. INTRODUCTION: This SOW describes the requirements for the maintenance, inspection, testing, and/or calibration of the Electrical Power Distribution System and all of its components at the AAVAMC. These work items are referenced as Maintenance and Testing in this document, hereafter. This SOW describes the requirements for the Qualified Electrical Contract Professionals known as Contractors in this document, hereafter. Contractors who are contracted by VA Medical Center to perform maintenance and testing of the Electrical Power Distribution System, and all of its components shall meet all requirements stated in Section 2 of this SOW. This SOW describes the requirements to establish maintenance and testing reports. 2. QUALIFICATIONS OF CONTRACTORS: Contractors shall be experienced Electrical Contractors, having properly trained and licensed permanent staff required to perform the proposed work. Electrical Contracting (i.e. the construction, repair, testing and maintenance of industrial and commercial electrical distribution systems) shall be the primary interest/specialty of the Contractor s business. Contractors shall be certified by the InterNational Electrical Testing Association (NETA) as Certified Technicians with each having completed the Occupational Safety & Health Administration (OSHA) approved 10-hour construction safety training. An on-site Competent Person as defined by NFPA 70E shall have completed the OSHA 30-hour Construction Safety Training. Certifications must be provided prior to work. Contractors shall have technical training and demonstrable track records of working experience in maintenance, inspection, and testing of the Electrical Power Distribution Systems and related components in healthcare, industrial, educational, and commercial facilities for a minimum of five (5) continuous years. Electrical components on which the Contractors have experience shall include, but not be limited to, switchboards & switchgear (low and medium voltage); low voltage controls; emergency and standby generators; automatic transfer switches, wiring, transformers, meters, and other electrical appurtenances. Provide a list of three (3) jobs that are similar is scope and cost. Contractors shall have safety trainings either on-the-job or classroom type - in electrical safety outlined in the OSHA Standard 29 Code of Federal Regulations (CFR) 1910 Subpart S Electrical, and the NFPA 70E Standard for Electrical Safety in the Workplace. Training certification shall be provided indicating each technician is a Qualified Person as defined by NFPA 70E. Training certifications shall be submitted to the VA Contracting Officer prior to work. If no training certifications are available, the contractor Employer shall certify that he/she has met this requirement in writing and submit it to the VA Contracting Officer prior to work. Contractors shall have ready access to and knowledge of the latest versions of the following references: NFPA 70, National Electrical Code. NFPA 70B, Recommended Practice for Electrical Equipment Maintenance. NFPA 70E, Standard for Electrical Safety for the Workplace. NFPA 110, Standard for Emergency and Standby Power System. OSHA Standard 29 CFR 1910, Subparts I & S. InterNational Electrical Testing Association, Inc. (NETA) Maintenance and Testing Specifications. Operating/Maintenance manuals, and specifications of the electrical equipment to be maintained and tested. These documents may be obtained from the VHA Medical Center, or the equipment manufacturers. VHA Directive 1028, Electrical Power Distribution System E. Contractors shall have and provide all necessary tools, equipment, and Personal Protective Equipment (PPE) to perform the work safely, effectively, and timely. Tools, equipment, and PPE shall comply with the requirements of OSHA Standard 29 CFR 1910, Subpart I, and NFPA 70E. Prior to initiating work, Contractor shall provide documentation that all instruments, test equipment, tools and PPE have current calibration. Dated calibration labels shall be visible on all instruments, test equipment, tools and PPE as appropriate. 3. SUMMARY OF WORK: Transformers, including all related components, are inspected, tested, and maintained. The following is a list of items to be inspected, tested, and maintained in this contract: Transformers must be cleaned exteriorly, inspected for signs of overheating with infrared thermal detecting equipment, and inspected for any damage to the housing, connection points, or insulation. Liquid cooled transformers must have the cooling liquid tested; and replaced when test indicates that the liquid no longer meets manufacturer s specification. The liquid must be replaced to meet the manufacturer s specification. Dry type transformers must be thoroughly cleaned exteriorly and inspected for overheating with infrared thermal detecting equipment. Electrical equipment (including, but not limited to switchgears, switchboards, distribution panels, motor control centers, and all related components) are required to be inspected, tested, maintained, or calibrated. This inspection, testing, maintenance, and/or calibration requirement shall be accomplished on this contract and documented to meet these requirements. NOTE: The National Electrical Testing Association (NETA) provides guidance which is considered best practice for the maintenance of electrical equipment; these practices should be followed to the maximum extent possible. Use lint-free rags to clean conductors, contact points between the circuit breakers and main buss bars, buss bars and interior of the electrical equipment. Use a vacuum cleaner to remove large debris; compressed air is not to be used for this purpose. Visually inspect for signs of overheating, misaligned contacts, damaged insulation, lose lugs or any observed deficiency. Lubricate all moving parts with manufacturer s approved lubricants. Test and exercise circuit breakers located in switchgears, switchboard, and distribution panels to ensure operation under overload, and short circuit conditions. NOTE: All molded case circuit breakers (including frames size 225 amps or less) must be tested to determine if contacts open and reclose when breaker is manually tripped and restored. All panels are to be tested including emergency panels. All testing shall be fully documented and a comprehensive report shall be filed with the COR at completion of testing. Test ground fault protection devices for proper function if they are installed in the Facility Electrical Power System. Facility Ground Resistance Testing Inspect and tighten ground connections. Test ground resistance for the entire facility grounding system. This includes all medium voltage primary switchgear, all unit substations, and all grounding electrode conductors of separately derived systems (i.e. dry type and oil filled transformers) Any method of ground resistance must be considered acceptable if it can verify continuity and quantify the impedance to ground, to include but not limited to fall-of-potential, induced frequency, and clamp on testing. If initial tests indicate a problem or concern (e.g., ground resistance is greater than 25 ohms), a more detailed test must be performed using fall-of-potential or 3-point testing. Where installed, the lightning protection system must be inspected and tested for continuity to ground, ground resistance and certification in accordance with Underwriters Laboratory (UL) standard 96A. (f) Identify any and all hot spots in the electrical equipment by using infrared thermal detecting equipment. Tighten problem connections to meet equipment manufacturers specification using a torque wrench or other approved devices. (g) Calibrate and maintain adjustable protective relays. (h) Test all control systems equipment for proper operation after maintenance is performed and before placing them back in normal service. 4-Hour Power Outage Test The Contractor shall be present for and will participate in the VAMC 4-hour test of the Essential Electrical System (EES). This test shall be scheduled at the VA s discretion and will fulfill the requirements of VHA Directive, Electrical Power Distribution System, NFPA 110 (e.g. Para. 8.4.9.) and The Joint Commission. This test will include opening of all utility service connections serving the VAMC for a minimum of 4-hours. During the test period, verify operation of all EES components including the transfer to emergency power and return to normal service. The estimated duration of the Contractor s involvement is between 8 12 hours. The Contractor shall assist the VAMC staff with troubleshooting and correcting malfunctioning electrical equipment discovered during the test. Contractor shall make any required adjustments and/or re-calibrations to all equipment which has been otherwise maintained, inspected, and tested under this Scope of Work. Electrical Safety Training The Contractor shall be responsible for providing Electrical Safety Training for up to 25 employees. Training will be performed in a classroom setting located at 2215 Fuller Rd., Ann Arbor, MI 48105-2303. Training curriculum must comply with NFPA 70E, 110.2(A) & 110.2(B). Once training is completed contractor will provide two (2) binders that contains course syllabus and curriculum, as well as a roster signed by each technician that attended training. Automatic Transfer Switch Inspection and Maintenance De-energize the switchgear (ATSs equipped with an isolation bypass feature that do not need to be de-energized). Remove the arc chutes and pole covers. Consult the manufacturer's information for proper procedure. This step will allow visual inspection of the main and arcing contacts. Test and recalibrate all trip-sensing and time-delay functions in the switchgear. Depending on the manufacturer, the steps required here will vary. The focus here should be to verify and record what current settings are and to ensure the current adjustments meet the customer's needs and expectations. If adjustments are necessary, the means to make and verify those adjustments need to be examined. For example, a voltage pick-up or dropout adjustment may require the use of a variable source such as a variable ac transformer. The standby engine can be a source of variable frequency, etc. In any case, the manufacturer is your source for information concerning these adjustments. Vacuum the accumulated dust from the switchgear and accessory panels. Never use air to blow out dirt. Subjecting the TS unit to compressed air may have a detrimental effect by forcing dirt and debris into the switch mechanism. Inspect for moisture or signs of previous wetness or dripping. Clean grime with an approved solvent. Consult the OEM for a recommendation. Inspect all insulating parts for cracks or discoloration due to excessive heat. Part of any complete maintenance program is an infrared scan. This work is done prior to maintenance with normal loads applied to the gear being scanned. The resultant report will define problem areas. The use of this information will allow the maintenance provider to take a proactive approach. Inspect all main arcing contacts for excessive erosion. Arcing contacts are intended to be sacrificial by nature. They take the brunt of the energy when making or breaking the load. Careful attention should be paid to these contacts. Inspect all main current-carrying contacts for pitting and discoloration due to excessive heat. Inspect all control relay contacts for excessive erosion and discoloration due to excessive heat. Manually operate the main transfer movement to check proper contact alignment, deflection, gap, and wiping action. Check all cable and control wire connections to the transfer switch control and sensing panel and other system components and tighten if necessary. Re-energize the switchgear and conduct a test by simulating a normal source failure. The Contractor shall provide a proposed schedule within 14 days of award date. The schedule shall be in the form of a progress chart of suitable scale to indicate the work scheduled for completion by any given date during the work period. The proposed schedule shall be reviewed by the AAVAMC Facilities Management; any requirements for adjusting the schedule (e.g. to minimize disruption to the AAVAMC) shall be incorporated by the Contractor. See Appendix C Electrical Testing for a proposed schedule of outages. This document is an estimate only and will change. Contractors shall report deficiencies that are deemed critical or catastrophic immediately to the Contracting Officer and Chief of Facilities Management for immediate actions. Work items, definitions, and references shall comply with the latest edition of the NETA Maintenance Testing Specifications (MTS) and with the VHA Directive, Electrical Power Distribution System. Below is a list of the most common electrical equipment applications present at AAVAMC that shall be maintained and tested: Switchgear and Switchboard Assemblies Transformers, Dry and Liquid-Filled types Metal Enclosed Busways Switches, Air, Medium-Voltage, Metal-Enclosed Circuit Breakers, Air, Insulated-Case/ Molded-Case Circuit Breakers, Air, Low-Voltage Power Circuit Breakers, Air, Medium-Voltage Circuit Breakers, Vacuum, Medium-Voltage Protective Relays, Mechanical, and Solid State Microprocessor Based and all Protective Relays Grounding Systems Ground-fault Protection Systems Motor Control, Motor Starters, Low-Voltage Emergency Systems, Engine Generators Emergency Systems, Automatic Transfer Switches Attachments. Government Furnished. Inventory of Electrical Power Distribution System equipment to be maintained, inspected, and tested under this Scope of Work. The embedded file is a list of all items tested during 2014 test. See Appendix D - Equipment summary by drawing One-line and other informational drawings of the Electrical Power Distribution System. These drawings are not certified as-built drawings and are subject to change. See Appendix E - Campus Electrical one line drawings See Appendix E - Campus Electrical one line drawings MAP Electrical Power System study information relevant to the scope of this effort. See Appendix F - All relay table section 4.2.2.2 See Appendix F - All fuse table section 4.2.3.2 See Appendix F - All breaker summary section 4.2.1.1 DELIVERABLES: A. A complete written report of the work performed shall be provided to the VA within 7 days of completion. Information shown in the report shall be formatted as follows: Company s name, addresses, telephone, & FAX numbers. Name and signature of contractors who perform the maintenance and testing. VA Contract and Purchase Orders, Contracting Officer (CO) and Contracting Officer s Representative (COR) names and contact information. Date and Time of work. Copies of all contractor valid licenses, professional and training certificates. Descriptions and model number of specialized tools and equipment used, such as torque wrench or infrared scanning camera. Location, Type, Name, and nameplate information of electrical equipment to be maintained and tested. Descriptions of work items. Test data. Reference materials such as equipment manufacturer s specifications, coordination study, etc. Remarks on conditions of electrical equipment. List all deficiencies, if any. Recommend corrective actions if any to include feedback on overall system. Submit one electronic copy of the complete written report to the CO within seven (7) calendar days of completion of all services. All reference materials shall be included in the electronic version of the report, either through scanning or other means of electronic text import methods. C. Submit four (4) hard copies of the complete written report, and one (1) CD-ROM or DVD of the electronic version of the report in Microsoft Word format to the Chief of Facilities Management within seven (7) calendar days of completion of all services. All reference materials shall be included in the electronic version of the report, either through scanning or other means of electronic text import methods.
Data sourced from SAM.gov.
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