Aluminum grounding conductors cannot be in contact with earth, masonry, or subjected to corrosive conditions. When used outdoors, the termination to the electrode must not be within 18 inches of earth ...
A separately derived system is a premises wiring system with no direct electrical connection to conductors originating from another system [Art. 100 definition and 250.20(D)]. All transformers, except ...
The author is national program manager for Copper Development Association Inc. Proper grounding and bonding in radio and television stations are vital to improving uptime, equipment life and ...
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