not a residential question.
Does anyone know what the code has to say about the allowed length and
means of attachment for line voltage electrical (120VAC>15A) cords,
(temporary power) on commercial buildings?
The code doesn't matter as much as the inspector's opinion.
I worked for an aerospace company that used extension cords to provide
power to desks in a bullpen area -- one cable about as big as my thumb
with a metal junction box every eight feet. (Can you tell I'm not an
electician?) Someone in the shop was using an extension cord improperly.
He was told to get rid of it. It was still there the next time the
inspector came, so we were told to remove *every* extension cord in the
entire plant -- some sixty buildings. The office areas got official power
poles, not a bad thing, and the shop areas got real commercial power runs.
Tens of thousands of dollars of expense.
Moral: Don't annoy the inspector.
Length does not matter. You can't use flexible cords as a substitute
for the fixed wiring of a structure. If you are installing temporary
power feeds they need to comply with NEC and be removed within 90 days.
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