What are the testing requirements for testing a level 1 emergency generator?

  1. weekly visual of all components including batteries and all ATS’s
  2. monthly test under load for 30 minutes excluding cool down time
  3. annual load bank with 50% load at 30 minutes and 75% load for 60 minutes NOTE: This only applies if 30% load or manufacturer’s recommended exhaust temp is not met during any of the monthly tests
  4. four-hour triennial test at 30% load

Reference NFPA 110: Standard for Emergency and Standby Power Systems (2010) Chapter 8 for a full list of Inspection, Testing, and Maintenance (ITM) activities.

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