Electrical Systems - Essential Electric System Maintenance and Testing The generator or other alternate power source and associated equipment is capable of supplying service within 10-seconds. If the 10-second criterion is not met during the monthly test, a process shall be provided to annually confirm this capability for the life safety and critical branches. Maintenance and testing of the generator and transfer switches are performed in accordance with NFPA 110. Generator sets are inspected weekly, exercised under load 30 minutes 12 times a year in 20-40 day intervals, and exercised once every 36 months for four continuous hours. Scheduled test under load conditions include a complete simulated cold start and automatic or manual transfer of all EES loads, and are conducted by competent personnel. Maintenance and testing of stored energy power sources (Type 3 EES) are in accordance with NFPA 111. Main and feeder circuit breakers are inspected annually, and a program for periodically exercising the components is established according to manufacturer requirements. Written records of maintenance and testing are maintained and readily available. EES electrical panels and circuits are marked and readily identifiable. Minimizing the possibility of damage of the emergency power source is a design consideration for new installations. 6.4.4, 6.5.4, 6.6.4 (NFPA 99), NFPA 110, NFPA 111, 700.10 (NFPA 70)
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Observations: Name: CLASS C - FIRST FLOOR TENANT SPACE - Component: 01 - Tag: 0918
Based on document review and interview, it was determined the facility failed to maintain required testing of emergency generator components, affecting one generator.
Findings Include:
1. Document review on October 4, 2023, at 9:50 am, revealed documentation showing monthly conductance testing of the emergency generator's sealed battery was not available at the time of survey. Exit interview with the Administrator on October 4, 2023, at 10:45 am, confirmed the missing documentation.
| | Plan of Correction - To be completed: 10/24/2023
Upon notification of deficiency, a Topdon BT600 battery tester was purchased. The monthly generator load test form has been updated to include the battery charge percentage, battery voltage, battery health level, and measured CCA for both batteries individually, and across both batteries together.
The batteries are tested monthly during the generator load test with the power supply for the battery charger disconnected, and results documented on the load test form. Monthly generator testing and outcomes are reported quarterly during executive meetings.
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