ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Lowes Selling this fan
by timmp - 07/25/21 10:58 PM
How's all our Non-US folks doing?
by djk - 07/23/21 09:13 PM
Switched Receptacles -Top or Bottom?
by donles - 07/23/21 10:51 AM
Do You Travel?
by Bill Addiss - 07/20/21 04:26 PM
Backup Generator Done Right
by timmp - 07/18/21 12:20 PM
New in the Gallery:
February, North East Indiana
February, North East Indiana
by timmp, July 25
Red Green would be proud
Red Green would be proud
by timmp, July 25
Who's Online Now
0 members (), 42 guests, and 15 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Joined: Feb 2004
Posts: 494
M
Member
Hi,
Shouldn't the CW ground be run from the CW main to the FIRST SED? I have a 200A Main CSED (#6 solid to ground rod) with 8 spaces that feeds a 200A sub in a basement. The CW ground is a #4 solid and is connected at the CSED. The EGC is a #6 solid that runs from the CSED to the 200A sub with no bonding screw. The 200A sub feeds a 100A sub with a #6 solid EGC and no bonding screw, from the 200A sub panel.

I am asking due to the CSED with 8 spaces.

Thanks for any comments.

Mustang



[This message has been edited by mustangelectric (edited 03-22-2004).]

2017 / 2014 NEC & Related Books and Study Guides
Joined: Aug 2003
Posts: 1,374
R
Moderator
Hello mustangelectric, and welcome.

Could you please elaborate on your abbreviations, such as SED and CSED? I hate would give you an improper answer due to my misunderstanding your terminology. Thanks.


Ryan Jackson,
Salt Lake City
Joined: Feb 2004
Posts: 494
M
Member
Hi,
In regards to the abbreviations in my initial post. SED (SERVICE ENTRANCE DEVICE) CSED (COMBINATION SERVICE ENTRANCE DEVICE)

CW (COLD WATER)

Hope that helps.

-regards

Mustang

[This message has been edited by mustangelectric (edited 03-23-2004).]

Joined: Aug 2003
Posts: 1,374
R
Moderator
Grounding electrode conductors must go from the electrode (water pipe in your case) to the service equipment. Read the definition of service equipment and you will find that it is basically a breaker or set of breakers (not more than 6) that are used to shut down the building. Everything after that is "other than service equipment", and no the grounding electrode conductor should not be landed there.

The service equipment is kind of "bullseye" where all grounding and bonding come together. Nuetrals, equipment grounds, bonding jumpers, grounding electrode conductors an dmain bonding jumpers shall be bonded together as one at this location. Anything after the service disconnect requires isolation of the nuetral.

Does this answer your question or did I just ramble?


Ryan Jackson,
Salt Lake City
Joined: Feb 2004
Posts: 494
M
Member
Hi,
Thanks for the reply. Yes, that confirms my post.

I always like to get a second opinion if I am not 100% sure and especially before I go to pulling wire.

Sincerely,

Mustang


Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
waymag
waymag
dallas, texas, USA
Posts: 69
Joined: January 2002
Top Posters(30 Days)
timmp 7
Rachel 4
Popular Topics(Views)
281,471 Are you busy
215,106 Re: Forum
201,971 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5