ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Do we need grounding?
by tortuga - 03/18/24 08:39 PM
240V only in a home and NEC?
by tortuga - 03/18/24 04:29 PM
Cordless Tools: The Obvious Question
by renosteinke - 03/14/24 08:05 PM
Test Post
by sabrown - 03/06/24 05:29 PM
Solar PV Wiring Errors
by renosteinke - 03/02/24 09:12 PM
New in the Gallery:
This is a new one
This is a new one
by timmp, September 24
Few pics I found
Few pics I found
by timmp, August 15
Who's Online Now
0 members (), 94 guests, and 11 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:


>> 2023 NEC & Related Reference & Exam Prep
2023 NEC & Related Reference & Study Guides

Pass Your Exam the FIRST TIME with the Latest NEC & Exam Prep

>> 2020 NEC & Related Reference & Study Guides
 

Joined: Apr 2002
Posts: 7,380
Likes: 7
Member
Check!

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


John

Link Copied to Clipboard
Powered by UBB.threads™ PHP Forum Software 7.7.5