[NJWVUGrad]

Working on a job that has welded wire mesh instead of rebar in every concrete pad for switchgear and transformers, etc. The wire only has a diameter of .192" inches. It has to be bonded to the ground ring (4/0) and I'm trying to figure out what type of lug or crimp to use.

Having trouble finding something that matches that wire range. Any suggestion appreciated

 

[Going_Commando]

I don't have a code book in front of me, but I thought concrete encased electrodes had to be of a certain size (3/8 or 1/2" maybe?) and have 20 linear feet within the concrete. Don't think you have to bond wire mesh.

 

[Pete m.]

I don't have a code book in front of me, but I thought concrete encased electrodes had to be of a certain size (3/8 or 1/2" maybe?) and have 20 linear feet within the concrete. Don't think you have to bond wire mesh.

I'm guessing this is a job spec. I agree with you it is not an NEC requirement.

Pete

 

[NJWVUGrad]

Yes Pete your correct, it is a Job Spec

 

[green light]

Have you looked into cad weld?

 

[Cow]

I would use an Ilsco IK-250. They're grounding/bonding and db rated.

I've used hundreds of IK-6's to tie #8 Cu to wire mesh for equipotential bonding.

https://www.platt.com/CutSheets/Ilsco/Ilsco-IK-Series-CatalogPage.pdf

 

[drsparky]

Harger is the "king" of that type product. http://www.harger.com/

 

[Celtic]

I would use an Ilsco IK-250. They're grounding/bonding and db rated.

I've used hundreds of IK-6's to tie #8 Cu to wire mesh for equipotential bonding.

https://www.platt.com/CutSheets/Ilsco/Ilsco-IK-Series-CatalogPage.pdf

I see these split-bolts are rated:
"For use with copper conductor types: Solid, Compact,
Compressed, Concentric"
....I don't see where it says for steel mesh/rebar.

Am I reading it wrong?

 

[rrolleston]

I see these split-bolts are rated:
"For use with copper conductor types: Solid, Compact,
Compressed, Concentric"
....I don't see where it says for steel mesh/rebar.

Am I reading it wrong?

I would think if the OP could use a split bolt it would have to be one made out of brass with the spacer or the connection would fail.

 

[Cow]

I see these split-bolts are rated:
"For use with copper conductor types: Solid, Compact,
Compressed, Concentric"
....I don't see where it says for steel mesh/rebar.

Am I reading it wrong?

To be honest, I never looked into it any further. Our inspector here only required grounding/bonding and db rated. These seemed to fit the bill and he approved them.

If someone knows of something else that specifically states it's for wire mesh I'd be interested in knowing as well.

 

[someonespecial]

Maybe something like a Weaver clamp? This is what the phone and cable companies used to bond their strands to the pole's ground.

http://www.ai-supplies.com/clamp-bonding-k1-weaver-100-box-allied-bolt-2125k1-box/