concrete encased electrode vs grnd rods

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Re: concrete encased electrode vs grnd rods

No ground rods required unless its a time and materials job.
In ten years a new electrician will ask, "hey I ran into some old ground rods in the warehouse, what were they for?"
CEE, I like it, the industry has already made a slang term.
 
Re: concrete encased electrode vs grnd rods

Arlington Ind. has introduced two ground clamps which are rated (UL listed)for direct burial on rebar, pipe, tubing and rod. (#718DB & 7109DB).
These are stocked by our local supply houses.
 
Re: concrete encased electrode vs grnd rods

Originally posted by iwire:
Cool, but are they listed for rebar?

They certainly could be, I am just axkin. :)
Click to expand...
Well, nuts and fiddlesticks. No, they're not.

I just looked at the PDF catalog from NSI and confirmed your hunch.

Looks like I need to go from the $2.91 GRC-58 to the $3.59 G-1-S DBR. The boss is gonna have to take his coffee without creamer now. :D

Thanks for bringing that to my attention, Bob.
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Re: concrete encased electrode vs grnd rods

I've noticed most of these clamps are listed for direct burial on rebar, but there any for on rebar not directly buried? :confused:
 
Re: concrete encased electrode vs grnd rods

I would not think the fact that they are rated for direct burial would prevent you from using them other places as the are not listed ONLY for direct burial.
somewhat like panels listed for use as service equipment..
 
Re: concrete encased electrode vs grnd rods

That's a good point. At the very least, it seems that the ground rod clamp (acorn-style) isn't supposed to be used for rebar, that's a safe assumption.

We use the real cheap zinc-? water pipe clamps for the water pipe, and they're not rated for direct burial. I wonder if those would do as good a connection to rebar?

It's pretty rare to have a encased connection to the CCE around here.
 
Re: concrete encased electrode vs grnd rods

rebar...iron, very high carbon that will want to rust and then make a loose connection in the years to come.galvan might work in dry ca but i'm not sure about here in the humid east. is cadweld the only sure way. j_erikson, in ma what have you guys been using all these years?

[ January 24, 2006, 10:55 PM: Message edited by: twistin214 ]
 
Re: concrete encased electrode vs grnd rods

I purchased two clamps last night at home depot manufactured by Halex Corp. Both clamps have the exact same brass body, markings and all. One has zinc screws and cost $1.68, the other has brass screws and cost $2.98. The second one also has a paper tage stating, "approved for rebar 5-6 / suitable for direct burial in earth & concrete".

I looked up the listing information on Ul.com - KDER. There is nothing to indicate the difference between these two clamps other than one has the tag and brass screws. :confused:
 
Re: concrete encased electrode vs grnd rods

I second the " :confused: "

Maybe all the manufacturers operate under the assumption that all rebar connections are going to be encased?
 
Re: concrete encased electrode vs grnd rods

Originally posted by twistin214:
j_erikson, in ma what have you guys been using all these years?
Click to expand...
We've always just installed #4 bare in the footing. We install it while the pour the footing. Right after they pour we just push the #4 down into it. This assures that it has the proper 2" encasement. We usually explain to the inspectors beforehand what we are doing, and ask if they want to come out. They usually take our word for it. We try to leave enough to reach main panel but if not we just cadweld to it. If we can't get inspector out, we still use it, but occasionally will have to drive 2 ground rods if they didn't "see" our CEE. Most admit that if we are going to the trouble of notifying them about the install and going there just for it, there really isn't anything to see. As one said, "I really don't watch you install your ground rods, either".
 
Re: concrete encased electrode vs grnd rods

thanks,leaving enough gec to reach the panel sounds the best to me :D
george, i saw a phone guy with a whole bunch of shorter ground rods on his van. why spend your money on grounding for them?
 
Re: concrete encased electrode vs grnd rods

I just found out that ERICO (Eritech) has recently obtained a listing for REBAR on their CP58 acorn style ground clamp.

All other ERICO acorn clamps are not listed for this use.

By the way, I also just spoke with a GALVAN rep and they do not have an acorn style clamp for use with rebar. The only clamp they have listed for rebar the JRD model.

ILSCO has three acorn style listed for REBAR: GRC-38, GRC-48, GRC-68

Bridgeport, Regal, nor Halex have acorn style clamps for REBAR.
 
Re: concrete encased electrode vs grnd rods

There are currently only (2) ?acorn? style clamps listed for use with REBAR:

Erico (Eritech): Model # CP58 - #4 rebar

ILSCO: Models # GRC-38, GRC-48, GRC-68 - #3, 4, and 5 rebar


Other UL listed Clamps for use with REBAR:


Erico (Eritech): Model # EK 16 / EK 17

ILSCO : Model # BGC-2T-DB, BGC-2P-DB, BGC-2PS-DB, BGC-4/0P-DB, BGC-4/0S-DB

Galvan: Model # JRD

Bridgeport: Model # RB-16, RB-17

Regal Fittings: Model # 8181

Consolidated Manufacturing International: Model # JRD

Greaves Corp: Model # J29-DB, J30-DB, J31-DB

NSI Polaris: Model # G140DB / GLC140DB

Sigma Electric: Model # C-11N, C-11BN, C-11, C-11D, C-11DN, RBC-1D

Halex Company: Model # C-11

Thermocraft: Model # JRD, JRD+

Thomas and Betts: Model # CC1C-45R, CC2C- 45R, CC10C-56R, CC20C-56R, CC40C-56R
 
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