§ 77.700-1. Approved methods of grounding.
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/us/cfr/t30/s§ 77.700-1·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
Metallic sheaths, armors, and conduits in resistance grounded systems, where the enclosed conductors are a part of the system, will be approved if a solid connection is made to the neutral conductor; in all other systems, the following methods of grounding will be approved:
(a)A solid connection to metal waterlines having low resistance to earth;
(b)A solid connection to a grounding conductor, other than the neutral conductor of a resistance grounded system, extending to a low-resistance ground field;
(c)Any other method of grounding, approved by an authorized representative of the Secretary, which ensures that there is no difference in potential between such metallic enclosures and the earth.
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§ 77.700-1
Approved methods of grounding.
Fed. Reg.×3
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