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#26630 - 06/17/03 12:48 PM Sub Panel Confusion  
ThinkGood  Offline
Member
Joined: Aug 2002
Posts: 1,081
Milwaukee, WI
Greetings, all.

I was visiting dad on Father's Day and was admiring some work my folks are having done in their kitchen.

I remember when the new service was put in, and the electrician drove a ground rod (perhaps two, I don't recall). This would have been somewhere in the late 1980s or early 1990s.

Then, dad had a sub panel added (right next to the main panel) to allow for more breakers. (Early 1990s.)

What I noticed now is that the sub panel's ground and neutral conductors are not isolated from each other. If I recall correctly, the grounds and neutrals are all on the same bus bar (terminal bar?).

I thought they were supposed to be isolated? Or does that only apply to a garage where an additional, separate ground rod is required?

(In the main panel, the neutral and ground wires also go to the same bar, but I believe that was from before the code requirement for separate (but bonded) neutral and ground bus bars...???)

My main concern is safety, of course.


Work Gear for Electricians and the Trades

#26631 - 06/17/03 02:48 PM Re: Sub Panel Confusion  
GEO  Offline
Member
Joined: Mar 2003
Posts: 47
Lancaster,Pa
NEC 2002 try this while you are waiting
225.36--- 250.32b1---250.32b2 GEO


#26632 - 06/17/03 06:39 PM Re: Sub Panel Confusion  
mj  Offline
Member
Joined: Jun 2002
Posts: 186
meriidian, ms
was not a requirment to separare neutral from ground in the 1980's ?


#26633 - 06/18/03 07:01 AM Re: Sub Panel Confusion  
Redsy  Offline
Member
Joined: Mar 2001
Posts: 2,056
Bucks County PA
250.142 (A) & (B) sum it up.



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