DC Electrician Practice Questions - District Of Columbia Journeyman Electrician License Exam

Per the NEC in District of Columbia, what grounding is required for separately derived systems?

Bond to building steel only GEC to grounding electrode and system bonding jumper per 250.30(A) Connect to nearest water pipe No grounding required

Correct Answer:

GEC to grounding electrode and system bonding jumper per 250.30(A)

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