Tiny K.O. In Square D Enclosures?

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c_picard

Senior Member
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USA
Hey,
Does anyone know of any documentation that would show an inspector that the tiny KO in the bottom of a panelboard/load center is intended for conveniently entering the enclosure with a GEC , let's say a bare 6AWG?
Is this KO not intended for this use?

Thanks for any input,
Chuck
 
They may be a weep hole for outdoor installations. I have always used the ones in meter cans for the #4 solid gec to the ground rod(s). Being the perfect size and all ;)
 
tomspark1 said:
They may be a weep hole for outdoor installations. I have always used the ones in meter cans for the #4 solid gec to the ground rod(s). Being the perfect size and all ;)

People have posted cut sheets for meter sockets showing that hole being used for the GEC.

Maybe you could find a cut sheet for the panel?
 
I don't recall, BUT, that doesn't always mean much. It should tell you in the literature for the panel. I (we) the groups I worked with always used that particular opening for the EGC. (as I believe it is intended to be used for).
 
That little knockout serves the same purpose as every other knockout in the panel. You may use the knockout for whatever purpose you want as long use when you are done any open area is still within the allowable size for the enclosure rating, which is about 1/8" for a Type 1.
 
stickboy1375 said:
The real question is, Does a GEC need a connector at all?

I would think so

E) Enclosures for Grounding Electrode Conductors. Ferrous metal enclosures for grounding electrode conductors shall be electrically continuous from the point of attachment to cabinets or equipment to the grounding electrode and shall be securely fastened to the ground clamp or fitting. Nonferrous metal enclosures shall not be required to be electrically continuous. Ferrous metal enclosures that are not physically continuous from cabinets or equipment to the grounding electrode shall be made electrically continuous by bonding each end of the raceway or enclosure to the grounding electrode conductor. Bonding shall apply at each end and to all intervening ferrous raceways, boxes, and enclosures between the cabinets or equipment and the grounding electrode.
 
stickboy1375 said:
The real question is, Does a GEC need a connector at all?

kennyclampinstalledcloseup.jpg


The ol' Kenny Clamp again?
 
celtic said:

I just noticed that the literature for the Kenny Clamp says it can be installed in a rigid conduit coupling. Didn't we have the discussion that fittings designed for locknuts can not be used in rigid couplings?
 
iwire said:
That is cool, I have to put a drill motor on mine. :grin:

It's the latest thing. First came drills without cords. Now, bits without drills! Whenver you need a hole, just hold the tub up to your screen.... next thing you know, there's a 3/8" hole.

Now I know what you're thinking.... I don't have the tubs here, they're on the job site. No problem! Just download the image to your blackberry or PDA! :grin:
 
Thanks for the 'help' wiseguys,
I shot an e-mail to square-d, tech support says that is the intent of the KO, I'm waiting to see if there is a document stating such. I'll let you know.
In the meantime I have a special tool to keep the inspector happy, can you guess what it is?
 
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