26 mm 2 (10 AWG) ground wire must be used, and in all other markets a 6 mm 2 must be used. Secondary equipment grounding refers to connecting the secondary equipment (such as relay protection and computer monitoring systems) in power plants and substations to the earth via dedicated conductors. A feeder usually begins with a feeder breaker at the distribution substation. Many feeders leave substation in a concrete ducts and are routed to a nearby pole. At this. Grounding is a mechanism to protect distribution equipment and people under normal operating conditions, abnormal operational (overcurrent and overvoltage) responses, and hazardous conditions such as shocks. This helps to reduce the potential difference that exists between. Power from factory ground must be installed by a qualified electrician. Each DISTRIBUTION BOX and controller must be grounded. SEC Distribution System extends from the MV (33 kV, 13.
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