To determine the correct size, refer to NEC Table 250.122, which outlines the minimum size of conductors based on the amperage of the protective device. For example, if a 100-amp breaker protects the ...

NEC guidelines for sizing grounding electrode conductorsMike Holt is the owner of Mike Holt Enterprises (www.MikeHolt.com), one of the largest electrical publishers in the United States. He earned a ...

Choose the best answer: The size of the grounding electrode conductor for a building or structure supplied by a feeder cannot be smaller than that identified in _____, based on the largest ungrounded ...

Additional Key Sections in NEC Article 250: 250.52: Defines acceptable grounding electrodes (ground rods, building steel, water pipe, concrete-encased electrodes, etc.) 250.66: Specifies grounding ...