ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Run Cap subsitution question. Two vs. one
by LarryC - 05/28/22 10:25 PM
Why is Electrical Testing not mandated in the US?
by gfretwell - 05/28/22 04:37 PM
Ice melting mats
by Trumpy - 05/28/22 03:54 AM
It's been an interesting career
by Trumpy - 05/28/22 03:13 AM
Material shortages???
by Trumpy - 05/28/22 03:06 AM
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
2 members (Scott35, LarryC), 35 guests, and 19 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#216614 01/05/16 01:35 AM
Joined: Mar 2005
Posts: 240
Member
OK I feel like I should know this off the top of my head, but I am drawing a blank. First question is simply "Can the supplemental grounding electrode conductor go from panel to first ground rod and from that first ground rod to the second in two separate pieces of wire?" In other words use 4 acorns and 2 separate pieces of wire. And secondly when installing a 400 amp service with 2 qty 200 amp panels can I run from the ground rods to the first panel and then unbroken to the second panel/ Or does each service require its own supplemental grounding conductor?

Thanks,
H20

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: Jul 2004
Posts: 9,689
Likes: 10
G
Member
Yes, you can splice to a supplemental electrode

From the handbook

[Linked Image from gfretwell.com]

BTW does anyone see the anomaly in the code, demonstrated in the exhibit.


Greg Fretwell
Joined: Mar 2003
Posts: 849
Y
Member
Yes, you can splice to a supplemental electrode

Ist you MUST make sure it is a supplemental Grounding Conductor not required by Code.

See 250.52./250.53/ 250.64

Splicing 250.64 C

Taping 250.64 D


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
JoeKP
JoeKP
Berkley, MA
Posts: 144
Joined: March 2008
Top Posters(30 Days)
Trumpy 5
LarryC 3
NORCAL 2
Popular Topics(Views)
291,501 Are you busy
223,930 Re: Forum
209,314 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5