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#77071 - 04/20/01 04:29 AM yet another Grounding Q
sparky Offline
Member

Registered: 10/18/00
Posts: 5545
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?

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#77072 - 04/20/01 06:51 AM Re: yet another Grounding Q
Mike Offline
Member

Registered: 02/21/01
Posts: 65
Yes. You can install the GEC in the same conduit as the service entrance conductors.
See article 230-7, exception No. 1.

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#77073 - 04/20/01 09:28 AM Re: yet another Grounding Q
sparky Offline
Member

Registered: 10/18/00
Posts: 5545
Thanks Mike,

do you feel there are conflictions in 250 ?


i am interested in point of view here,

(for those posters that see my repetitive grounding inquires)

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#77074 - 04/20/01 01:22 PM Re: yet another Grounding Q
Glenn Offline
Member

Registered: 01/17/01
Posts: 78
Be sure to abide by 250-64(e) for each metal enclosure that the GEC passes through.

Glenn

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#77075 - 04/20/01 03:42 PM Re: yet another Grounding Q
Tom Offline
Member

Registered: 01/01/01
Posts: 1069
Loc: Shinnston, WV USA
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.

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#77076 - 04/20/01 05:21 PM Re: yet another Grounding Q
sparky Offline
Member

Registered: 10/18/00
Posts: 5545
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?


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#77077 - 04/20/01 05:32 PM Re: yet another Grounding Q
resqcapt19 Offline
Member

Registered: 11/10/00
Posts: 2209
Loc: IL
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)

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#77078 - 04/20/01 06:12 PM Re: yet another Grounding Q
sparky Offline
Member

Registered: 10/18/00
Posts: 5545
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

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#77079 - 04/21/01 06:46 AM Re: yet another Grounding Q
Tom Offline
Member

Registered: 01/01/01
Posts: 1069
Loc: Shinnston, WV USA
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.

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#77080 - 04/21/01 06:14 PM Re: yet another Grounding Q
zapped1012 Offline
Junior Member

Registered: 04/18/01
Posts: 6
Loc: honesdale,pa
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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