The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

   
Topic Options
Rate This Topic
#26630 - 06/17/03 09:48 AM Sub Panel Confusion
ThinkGood Offline
Member
Registered: 08/07/02
Posts: 1084
Loc: 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.
Top
Work Gear for Electricians and the Trades
#26631 - 06/17/03 11:48 AM Re: Sub Panel Confusion
GEO Offline
Member
Registered: 03/12/03
Posts: 50
Loc: Lancaster,Pa
NEC 2002 try this while you are waiting
225.36--- 250.32b1---250.32b2 GEO
Top
#26632 - 06/17/03 03:39 PM Re: Sub Panel Confusion
mj Offline
Member
Registered: 06/10/02
Posts: 188
Loc: meriidian, ms
was not a requirment to separare neutral from ground in the 1980's ?
Top
#26633 - 06/18/03 04:01 AM Re: Sub Panel Confusion
Redsy Offline
Member
Registered: 03/28/01
Posts: 2138
Loc: Bucks County PA
250.142 (A) & (B) sum it up.
Top

Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box

Recent Posts
Looking for older post
by sparkyinak
Today at 12:27 AM
License exam
by TRUE POWER
Yesterday at 11:33 PM
Members: Non-Members: Did you know?
by Admin
Yesterday at 02:34 PM
Safety at heights?
by HotLine1
01/21/17 08:51 PM
International Wire Colour Codes
by Texas_Ranger
01/21/17 03:29 PM

Who's Online
0 registered (), 90 Guests and 9 Spiders online.
Key: Admin, Global Mod, Mod
New in the Gallery:
Desk-mounted "power-board"
Top Posters
gfretwell 9066
Trumpy 8560
pauluk 7693
HotLine1 6833
sparky 5545
Member Spotlight
Member Since: 02/21/04
Posts: 1248

ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals