EPSS circuit breakers for a Level I system, including main and feed breakers between the EPS and the transfer switch load terminals, shall be exercised annually with the EPS in the “OFF” position. (NFPA 110, 2010)
Additional Resource: NFPA 110
EPSS circuit breakers for a Level I system, including main and feed breakers between the EPS and the transfer switch load terminals, shall be exercised annually with the EPS in the “OFF” position. (NFPA 110, 2010)
Additional Resource: NFPA 110