K kellie Member Nov 26, 2003 #1 I am installing a 208/360 grounding autotransformer 3phase 3wire to 4-wire system what are requirements to satisfy 4505.5 (3) a fault sensing system . Thanks to anyone who can help
I am installing a 208/360 grounding autotransformer 3phase 3wire to 4-wire system what are requirements to satisfy 4505.5 (3) a fault sensing system . Thanks to anyone who can help
