bare egc in conduit

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badjeepr

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i just received a spec sheet on a particular project requiring bare egc's inside of conduit on all runs. Since when is it acceptable to install bare wires inside of conduit? dont ALL conductors need to be insulated?
 
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petersonra

Senior Member
Location
Northern illinois
Occupation
engineer
Re: bare egc in conduit

I seem to recall there are a few cases where it is prohibited to have a bare AL EGC - such as underground, or in a metal conduit (disimilar metals maybe).

Or maybe my rememberer is off base.
 
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badjeepr

Member
Re: bare egc in conduit

i swear i remember something about (all conductors in conduit to be insulated)..but i cant find any documentaion supporting
 
dereckbc

dereckbc

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Location
Plano, TX
Re: bare egc in conduit

badjeepr you might of read it in some IEEE standards like the Emerald or Green book, but nothing in the code.

[ September 22, 2005, 06:39 PM: Message edited by: dereckbc ]
 
bob

bob

Senior Member
Location
Alabama
Re: bare egc in conduit

Peter
I seem to recall there are a few cases where it is prohibited to have a bare AL EGC - such as underground, or in a metal conduit
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You never put bare AL underground. It would not last long.

I belive that bare EGC in metal conduit is to be bonded to the conduit at specified distances to prevent arcing under fault conditions.

[ September 22, 2005, 08:19 PM: Message edited by: bob ]
 
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