ECN Forum Forums Photo Discussion Forums Photos for General Discussion GEC to EMT Connectors

I stand corrected (and learned something in the process), the Erico acorn clamp is listed for use on groundrods AND rebar with a wire size of #2 or 1/0 depending on the part number.
Jake

Yes Scott a 3930 or two would be just the bees knees.

From what I could tell the 3930 is for conduit, i.e. rigid.
The JP- connectors, above the 3930 in the catalogue, are listed for use with EMT but, it has a maximum wire size of # 6.
Alan--

Surfinsparky - Pulling an insulated wire won't solve the problem were local code requires BX, MC or conduit; they want the GEC to have the same physical protection.

A friend of mine who doesn't do much work in NYC got red tagged on 200A residential service upgrade for using an insulated #4 for the GEC. BS, I know. Does it all the time outside NYC and never had a problem, always passed, but in NYC the GEC had to be in raceway (conduit) and of course, bonded at both ends.

Roger - You're absolutely correct on the "choke" effect of poor or non-existent bonding of a metal raceway for the GEC. Excellent point.

Joe

In NYC or any other big city the larger the copper, the more temping it is to be physicaly damged while being stolen. The conduit is there to help hide it...

Where I'm at in SF, it depends on what neighborhood you're in, and general mood of the inspector. But the safe side is to just pipe it if accessable to the public in anyway. Not behind locked door or gate.... People do snip and steal them...


[This message has been edited by e57 (edited 10-07-2006).]