Clamping bare #4 exiting service panel to water pipe

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infinity

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New Jersey
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Journeyman Electrician
I think the gap around the covers is larger than the KO (for water to run out/under).:D

I am asking because, "good trade practice" would be to clamp the wire and several AHJs in my area require it, I stuck my neck out and asked an electrician to clamp the GEC #4 today (he was fine with it) but I want to be 100%, if I am asking for it, that I can justify the request. I just want to be fair.
IMO, fair would be providing a code article that was violated and then asking. :)
 

acrwc10

Senior Member
The common code section used (and the most subjective) is 300.4, but this is an easy arguement to get into. Like I said previously, most AHJ's in my area are calling this and there are over 15 separate AHJ's in a 40 mile circle.
 

infinity

Moderator
Staff member
Location
New Jersey
Occupation
Journeyman Electrician
The common code section used (and the most subjective) is 300.4, but this is an easy arguement to get into. Like I said previously, most AHJ's in my area are calling this and there are over 15 separate AHJ's in a 40 mile circle.
Just curious, what specifically in 300.4 would you cite?
 

kwired

Electron manager
Location
NE Nebraska
I think the gap around the covers is larger than the KO (for water to run out/under).:D

I am asking because, "good trade practice" would be to clamp the wire and several AHJs in my area require it, I stuck my neck out and asked an electrician to clamp the GEC #4 today (he was fine with it) but I want to be 100%, if I am asking for it, that I can justify the request. I just want to be fair.
There is often gap around covers, and there is usually "weep holes" in bottom corners of any 3R enclosure, the 1/4 inch hole in question here has to be punched out to use it for any purpose. You have a better suggestion for its purpose other than GEC entries?

IMO, fair would be providing a code article that was violated and then asking. :)
Sounds fair to me:)

The common code section used (and the most subjective) is 300.4, but this is an easy arguement to get into. Like I said previously, most AHJ's in my area are calling this and there are over 15 separate AHJ's in a 40 mile circle.
Just curious, what specifically in 300.4 would you cite?
300.4 has nothing to do with securing a conductor, cable, raceway, etc to an enclosure. The title is "300.4 Protection Against Physical Damage."
 

iwire

Moderator
Staff member
Location
Massachusetts
The common code section used (and the most subjective) is 300.4, but this is an easy arguement to get into. Like I said previously, most AHJ's in my area are calling this and there are over 15 separate AHJ's in a 40 mile circle.
I have seen manufacturers cut sheets indicating that the small hole was in fact for the GEC
 
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