Re: convention for power supply routing

From: SQLit (SQLitnospam_at_cox.net)
Date: 07/27/04 

Date: Tue, 27 Jul 2004 12:15:23 -0700

"Laylow" <laylow@antisocial.com> wrote in message
news:b39acf72.0407270754.eee5a48@posting.google.com...
> Is there anything in the NEC that says that the wire supplying a
> panel, switch, or component should come in to the top of said panel,
> switch, or component? And also that the power leaving any device or
> panel should come out the bottom? Is this an actual convention? Are
> there exceptions or workarounds?
>
> Thanks,
> laylow

Most sparkies follow what you have mentioned. There are acceptations to
every practice.
The biggest problem with bottom feeding some switches is that when open the
knives are hot. Pretty cool at 5 kv, yep I found one of these at a
university.
There are machines where this practice is not followed.

There are bottom fed circuit breaker panels by every manufacture.

Be more specific about your application or talk to the AHJ

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