Emergency Power Off (EPO) switches, also referred to as “Generator Remote Shutdown Switches,” are a hot topic of conversation. In the past two years (2018-2019), MGI has received multiple comments regarding proper placement and testing of the EPOs. Most recent discussions revolve around exercising/testing an EPO while the generator is under load. Note: An EPO’s […]
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Are you prepared? NOAA expects an above-average storm season! Inspection Checklist and NFPA 110 Update Video  |
Proposed Changes to NFPA 110, 8.4.1
In order to bring some sensibility to “inspections,” I proposed a change in the NFPA 110 standard which was approved during the proposal process for the 2022 edition, and edited to read as follows: 8.4.1* EPSSs EPSs including all appurtenant components, shall be inspected weekly, and the EPSS shall be and exercised under load at […]
Reasoning Behind Annual Load Bank Test Intervals
NFPA 110, 8.4.2.3* states: “Diesel-powered EPS installations that do not meet the requirements of 8.4.2 shall be exercised monthly with the available EPSS load and shall be exercised annually with supplemental loads at not less than 50 percent of the EPS nameplate kW rating for 30 continuous minutes and at not less than 75 percent […]