On Dec 21, 10:32*pm, Kevin Ricks wrote:
Wayne Whitney wrote:
On 2008-12-21, Kevin Ricks wrote:

In my area sub-panel disconnects are required.

That seems odd--shutting off the main breaker in a subpanel doesn't
render it safe to work on, as the incoming feeder conductors are still
energized. *To deenergize the panel, you have to kill the feeder itself.

I was told the local inspector would require the disconnects where there
are 2 columns of breakers in the panel? With one column you can turn
everything off in one sweeping hand motion...with 2 columns your all
confused in a panic emergency ..... It was just a store employee that
said that... , but it may be that the NEC would require disconnect
anyway in my situation. It's an 8 slot sub in a detached shop building.
I believe NEC requires disconnects for subs in detached buildings.
* Actually, I am not sure if my shop is classified as attached or
detached? It's separated from the house by a breezeway but attached at
the roof. I treated it as detached.



OR what I did was to back feed the sub-panel through a standard
breaker (60A in my case). Much cheaper than the main breaker kit,
but it uses up 2 slots in the sub-panel.

This configuration requires an additional holddown bracket on the
backfed breaker.

Thanks I didn't know that.
Kevin





Cheers, Wayne- Hide quoted text -

- Show quoted text -

Hi,

This is a very valuable discussion for me, I was wondering if you
could define some of the terms that you were using, since I am still
at the point where I know hot/neutral/ground/breaker/panel/subpanel/
main breaker. What a

Disconnect -
Lug -
Main Lugs
Holddown Bracket -
Back feed -
Main breaker KIT -

Thank you in advance!

Aaron