Cold Water Ground

shaw0486

Senior Member
We are building a project and the engineer has over sized the grounding electrode to the cold water to a 400 KCMIL. We have search high and low for a manufacturers that makes a pipe clamp that will accept a 400 KCMIL and no one makes one that we can located. Does anyone have any recommendation on terminating this?
 

LarryFine

Master Electrician Electric Contractor Richmond VA
We are building a project and the engineer has over sized the grounding electrode to the cold water to a 400 KCMIL. We have search high and low for a manufacturers that makes a pipe clamp that will accept a 400 KCMIL and no one makes one that we can located. Does anyone have any recommendation on terminating this?
How about using a lug that will fit the wire, attached to a ground clamp with the 1/4-20 terminal screw.
 

curt swartz

Senior Member
Ilsco GPL ground clamps are available to fit wire sizes up to 500. I'm sure other manufactures have similar.

I would have told the engineer to adjust his/her plans to the correct wire size.
 

infinity

Moderator
Staff member
Ilsco GPL ground clamps are available to fit wire sizes up to 500. I'm sure other manufactures have similar.

I would have told the engineer to adjust his/her plans to the correct wire size.
I've always wondered why engineers want larger than the required #3/0 GEC's. :?

We frequently see spec's that call for 500 kcmil copper, that usually gets value engineered down to a #3/0. :thumbsup:
 
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