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#77071 - 04/20/01 07:29 AM yet another Grounding Q  
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,311
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

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


#77073 - 04/20/01 12:28 PM Re: yet another Grounding Q  
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,311
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)


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

Glenn


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

#77076 - 04/20/01 08:21 PM Re: yet another Grounding Q  
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,311
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]


#77077 - 04/20/01 08:32 PM Re: yet another Grounding Q  
resqcapt19  Offline
Member
Joined: Nov 2000
Posts: 2,148
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)

#77078 - 04/20/01 09:12 PM Re: yet another Grounding Q  
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,311
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]


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

#77080 - 04/21/01 09:14 PM Re: yet another Grounding Q  
zapped1012  Offline
Junior Member
Joined: Apr 2001
Posts: 6
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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