ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
It's been an interesting career
by Marienauripod - 05/18/22 07:37 PM
Run Cap subsitution question. Two vs. one
by grich - 05/17/22 01:21 PM
Material shortages???
by NORCAL - 05/02/22 04:12 PM
New in the Gallery:
240/208 to a house
240/208 to a house
by wa2ise, October 9
Now you know.
Now you know.
by Tom_Horne, September 7
Who's Online Now
1 members (gfretwell), 37 guests, and 13 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#219466 07/24/18 10:55 AM
Joined: Mar 2003
Posts: 849
Y
Member
Grounding conductor to water line & building steel with 6 - 600 mcm per phase.

per 250.66 = 3/0 copper. Just checking .

2500 amp service

Yoopersup

Stay up to Code with the Latest NEC:


2020 NEC & Related Reference & Study Guides
2020 NEC & Related Reference & Study Guides
Pass Your Exam the FIRST TIME with these Exam Prep Combos:
 

>> Master Electrician Exam Prep     >> JourneyMan Electrician Exam Prep
 

Joined: Apr 2002
Posts: 7,296
Likes: 5
Member
Check!

Unless the specs indicate a larger size, as some engineers get carried away.


John

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
lil suzi
lil suzi
Midwest
Posts: 57
Joined: August 2003
Top Posters(30 Days)
NORCAL 2
LarryC 2
Popular Topics(Views)
291,268 Are you busy
223,784 Re: Forum
209,193 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5