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yet another Grounding Q #77071 04/20/01 07:29 AM
Joined: Oct 2000
Posts: 5,389
S
sparky Offline OP
Member
I would like to install a simple service in GRC pipe. Can i install the GEC from the meter in this pipe to gain entry into the dwelling?

got code?
[Linked Image]

2017 / 2014 NEC & Related Books and Study Guides
Re: yet another Grounding Q #77072 04/20/01 09:51 AM
Joined: Feb 2001
Posts: 62
M
Mike Offline
Member
Yes. You can install the GEC in the same conduit as the service entrance conductors.
See article 230-7, exception No. 1.

Re: yet another Grounding Q #77073 04/20/01 12:28 PM
Joined: Oct 2000
Posts: 5,389
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sparky Offline OP
Member
Thanks Mike,

do you feel there are conflictions in 250 ?
[Linked Image]

i am interested in point of view here,

(for those posters that see my repetitive grounding inquires)

Re: yet another Grounding Q #77074 04/20/01 04:22 PM
Joined: Jan 2001
Posts: 75
G
Glenn Offline
Member
Be sure to abide by 250-64(e) for each metal enclosure that the GEC passes through.

Glenn

Re: yet another Grounding Q #77075 04/20/01 06:42 PM
Joined: Jan 2001
Posts: 1,044
Tom Offline
Member
Sparky,

I'll give you one of the violations that I cite in a service of this nature. I save this one for the folks who give me a hard time about correcting other violations of a serious nature. See 310-3, which requires conductors #8 & larger to be stranded if installed in raceways.

Tom


Few things are harder to put up with than the annoyance of a good example.
Re: yet another Grounding Q #77076 04/20/01 08:21 PM
Joined: Oct 2000
Posts: 5,389
S
sparky Offline OP
Member
hmmmm,
i'm tying to think of the last time i saw or used larger solid wire! I'd have to agree with that code Tom, it's a bear to put in pipe, at least of any length.

anyways, the GEC discussions always seem to incite the 'lightning' angle. Do you guys see any related problems here?

[Linked Image]

Re: yet another Grounding Q #77077 04/20/01 08:32 PM
Joined: Nov 2000
Posts: 2,148
R
resqcapt19 Offline
Member
Tom,
Look at the exception to 310-3 and then look at 250-62. The exception says "as permitted or required elsewhere in this code". 250-62 permits the GEC to be a soild conductor without a size restriction.
Don(resqcapt19)


Don(resqcapt19)
Re: yet another Grounding Q #77078 04/20/01 09:12 PM
Joined: Oct 2000
Posts: 5,389
S
sparky Offline OP
Member
ok, let's go there!

Let's install a 200A simple meter, GRC down JB in thru sill plate, beat a #4 cu solid thru it( just to be difficult) bonding bushings at both pipe ends. GEC enters panel , has to bond at the pipe end entering, make to the term strip the MBJ is at, then exit the panel ( not sure how to bond there?) and down to G-rods, onto h20 pipe.

i'm thinking this may be nec compliant,yet electrically flawed in the nec's intent for a GEC
[Linked Image]

Re: yet another Grounding Q #77079 04/21/01 09:46 AM
Joined: Jan 2001
Posts: 1,044
Tom Offline
Member
Don,

You're absolutely correct. I'll have to delete this one from my list.

Tom


Few things are harder to put up with than the annoyance of a good example.
Re: yet another Grounding Q #77080 04/21/01 09:14 PM
Joined: Apr 2001
Posts: 6
Z
zapped1012 Offline
Junior Member
sparky, why do you want to do it the hard way? you only need to bond the grc at one end. either at the meter socket or main panelboard. then #6 to the rod and #4 to the water pipe from the panelboard. our utility here does not the gec in the meter socket.

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