I'm supplying power to motor control center with 353 flc amps with 40 hp 53 amp largest
motor. The cabinet has a 400 amp main breaker, 480 volts. I have been told I need to install
a grounding ring around the plant. There are 7 conveyers not connected to the wash plant. I
am wondering what size conductor to use for ring and also what size to tap off to the
conveyers. Due to the MSHA requirements. Also wondering if service can be connected to this
ground ring.
motor. The cabinet has a 400 amp main breaker, 480 volts. I have been told I need to install
a grounding ring around the plant. There are 7 conveyers not connected to the wash plant. I
am wondering what size conductor to use for ring and also what size to tap off to the
conveyers. Due to the MSHA requirements. Also wondering if service can be connected to this
ground ring.
