Explanation: Section 250.53(A)(2) requires that a single ground rod be supplemented by another electrode. An exception allows a single rod if the resistance of this ...
Lightning protection is a critical aspect of establishments that operate sensitive electrical equipment, especially in the broadcast industry. Tied to this first line of protection against lightning ...
Explanation: Section 250.53 of the NEC requires that any made electrode that has a resistance greater that 25 ohms be supplemented by another electrode. The NEC does not require that an electrode have ...
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