I don't have a lot of time so I'll keep my question simple. From what I see the Code requires a grounding electrode conductor to be installed continuous from a panel to a ground rod. If I don't get 25 ohms I have to install a second ground rod. A co-worker is telling me that if I add a second rod I have to remove the first GEC and install a new GEC that is continuous from the panel through a clamp and on to the second rod continuous without a splice. I'm telling him that the second rod is connected to the first rod with a bonding jumper and I don't have to remove the first GEC and install a new one that is continuous. all the way to the second rod Please help with any Code articles.
GEC Question
- Thread starter Trey4U
- Start date
- Status
- Location
- Bremerton, Washington
- Occupation
- Master Electrician
Your coworker is incorrect and the fine folks on Code Making Panel 5 (Art 250) have recently clarified this. The GEC goes to the first ground rod. From the first ground rod its called a bonding jumper. Have them read section 250.53(C)
So it can be two wires and three clamps
I appreciate you questioning your coworkers! Too many in the electrical trade learned something that may of been wrong, or has changed
So it can be two wires and three clamps
I appreciate you questioning your coworkers! Too many in the electrical trade learned something that may of been wrong, or has changed
He is claiming 250.64(C) AAAARRRGGGHHHHH!!!
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
When I was a helper, my boss had me run it unbroken as your co-worker described, but that was to save the cost of one rod clamp.
The habit has stuck with me, but because it can be a challenge, not because I'm cheap. (I am cheap, but that's not why I still do it.)
The habit has stuck with me, but because it can be a challenge, not because I'm cheap. (I am cheap, but that's not why I still do it.)
That's my next step,
That's like having to leave 6" of wire for terminations at a junction box. Not necessarily so. We get in the habit or were told things many years ago and they stick.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Show him this:
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Show him this:
[/QUOTE]
All I see is [img] [img] but no image. What do I need to do to see it?
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Yes, I see it, thanks! He is using an image from a NEC Handbook that shows two rods connected with one continuous wire and all he reads is "continuous". I may try to educate him but he's the type of person that has a hard time accepting change.
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kwired
Electron manager
- Location
- NE Nebraska
- Occupation
- EC
Keep in mind the NEC handbook is not an official NFPA interpretation of the code - and it tells you that somewhere near the front of the book.
It is simply the opinion of those that authored the commentary in the book, just like Mike Holt's publications are nothing more than his opinions and are not official NFPA interpretations either.
Good to know, thanks!
Edit: I just looked in the front of the 2017 NEC and the order form for the Handbook goes to catalog.nfpa.org/NEC. The NFPA is selling the Handbook but isn't responsible for it's content?
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kwired
Electron manager
- Location
- NE Nebraska
- Occupation
- EC
The handbook has the original NEC content and it has the commentary content that is the author's explanation. NFPA does not stand behind any of the explanatory content because NFPA was not responsible for writing that content. They do not intend anyone to assume that commentary is any official NFPA explanation of their intentions or interpretations of any the actual code content. Many do assume so anyway, but if you ever get into serious situation on challenging someone on a topic within that handbook, find and show that statement to whoever is challenging you.
There have been a couple times in the past where people have pointed out mistakes in the handbook on this site also.
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