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The circuit equipment grounding conductor (EGC) is sized in accordance with NEC Table 250.122, based on the rating the circuit overcurrent protection device. For example, the EGC for a 100A feeder would need to be a minimum of 8 AWG copper. | Mike Holt Enterprises
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Mike Holt Enterprises on Instagram: "When does the National Electrical Code require grounding? Grounding is required by the NEC for electrical services [250.24], separately derived systems [250.30], and a building supplied by a feeder [250.32]. However, the Dinosaurs [MikeHolt.com/Dino] in the industry think that the more Grounding you do [Auxiliary Electrodes NEC 250.54], the better it is! The reality is that this is a false statement. To understand why you should not be driving ground rods for
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