Is it common practice to use current limiters with circuit breakers to limit short circuit current in power circuits for smaller loads fed from Motor Control Centers (MCCs)? I am finding that when sizing cables for available short-circuit currents per ICEA P-32-382-2007 that I have to upsize...
I am specifying a 125 VDC VRLA battery that will be connected to a distribution bus that provides standby power for a UPS as well as 3 125 VDC loads. The battery operating voltage range is 105 - 140 VDC. The VRLA battery will supply standby power for 2 hrs. for a constant load of approximately...