[SML] wire colors

billn at peak.org billn at peak.org
Mon Jun 29 19:02:49 UTC 2015


>> He may have specified what is a "shared neutral" configuration - which is
>> not the same as "ground and neutral are the same thing".
>
> Well, yes and no.  The result of his design was a 4-pin connector,
> with 3 3-Ø hot conductors, and one neutral shared among them.  The
> "consultant" said to me, word-for-word, "Ground and neutral are the
> same thing."  We did find that the metal cover of the floor pocket was
> mechanically grounded back to the distro panel via the conduit, which
> helped somewhat when exhibitors had modern electronic gear like sound
> systems or computers.

Ah, yes. I should have realized that it would be 3 phase.

Doesn't the code allow conduit to be used as the grounding conductor? I would
never specify such a set-up, but have seen it used.

Bill






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