In a message dated 08/03/2001 10:10:56 PM Pacific Daylight Time,
hugh.piggott@enterprise.net writes:
how does this fit in with having two electrodes which must never be
connected??
sorry for my ignorance of this subject.
The thing is that NEC really does not address lightning protection. Their
grounding protocals address safety only. The point that Bob-O makes is sound,
but if you don't bond the two grounding systems, you are violating NEC.
This is what I do when faced with the possiblity of lightning (this is non
compliant). At the array I ground everything very well, and use an arrestor
with the ground connected to the local ground system. I don't bond. At the
other end I again use another arrestor, this time bonding all grounds.
It's not ignorance, rather its a very slippery subject without consensus.
Best, Don
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