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#86976 12/27/03 04:56 PM
Joined: Aug 2003
Posts: 1,374
R
Ryan_J Offline OP
Moderator
I have long heard the argument about solid or stranded #8 bonding jumpers being used to satisfy 680.74

I ran into this the other day:
[Linked Image]

[Linked Image]

This is a 1/0 for a hydromassage tub!!! The installer was upset with me for requiring a 1/0 to bond his service lateral conduit, so he decided to bond everything with 1/0.

[This message has been edited by Ryan_J (edited 12-27-2003).]


Ryan Jackson,
Salt Lake City
2017 / 2014 NEC & Related Books and Study Guides
#86977 12/28/03 12:19 AM
Joined: Oct 2000
Posts: 2,749
Member
[quote]requiring a 1/0 to bond his service lateral conduit ..[/quote}

Ryan:

Please explain the scenario?


Joe Tedesco, NEC Consultant
#86978 12/28/03 08:58 PM
Joined: Aug 2003
Posts: 1,374
R
Ryan_J Offline OP
Moderator
Joe: The service entrance conductors are rated for 400 amps. 250.102 (C) refers one to 250.66 for bonding jumpers installed on the line side of the service disonnecting means.

Very popular residentail installation in my neck of the woods.


Ryan Jackson,
Salt Lake City
#86979 12/28/03 09:34 PM
Joined: Aug 2003
Posts: 1,374
R
Ryan_J Offline OP
Moderator
THREADJACK!!!

We had a very nice discussion about bonding the line side of a service at this thread:

http://www.mikeholt.com/codeforum/ultimatebb.php?ubb=get_topic;f=7;t=000426


Ryan Jackson,
Salt Lake City
#86980 07/29/04 11:08 PM
Joined: Mar 2001
Posts: 333
S
Member
So, what's the answer to stranded or solid? With the wording "not smaller than a No. 8 solid", is the code describing the actual diameter of the conductor, with a stranded being larger than a solid of the same gage?


Steve
#86981 07/29/04 11:44 PM
Joined: Jul 2004
Posts: 9,647
G
Member
I read that as 8 Ga solid or a larger stranded size. The only place I know of that allows stranded 8ga for pool bonding is the bond wire in the PVC raceway to a wet niche forming shell. You can use stranded for equipment grounding (not the same thing).


Greg Fretwell
#86982 07/30/04 09:28 AM
Joined: Aug 2003
Posts: 1,374
R
Ryan_J Offline OP
Moderator
As written, I beleive you could use #8 stranded, but I'm not sure that that is the intent.

Compare the language of 680.74 to that of 680.26


Ryan Jackson,
Salt Lake City
#86983 07/30/04 11:13 AM
Joined: Jul 2004
Posts: 9,647
G
Member
I agree 680.26(C) does say "solid copper conductor". I also see that they call the 8ga in the PVC to the forming shell an EGC, not a bond 680.23(B)(2)(b)
I guess there is method to the madness.


Greg Fretwell
#86984 07/31/04 11:56 AM
Joined: May 2004
Posts: 162
C
Member
Ryan
What size conductor did the installer wish to bond the service conduit (or conduits??)with??


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