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-   -   Can I use EMT as a ground? (http://www.homebrewtalk.com/f170/can-i-use-emt-ground-318227/)

Dgonza9 04-03-2012 02:06 AM

Can I use EMT as a ground?
 
I read that it was allowable to have up to 16 #12 wires in 3/4" EMT.

Yeah, good luck getting that done. I have 8 and it wasn't easy to pull those. I was going to run a separate ground wire. But now I'm wondering if I can use the metal conduit as the ground here. I don't know if I can pull another wire through.

Acceptable?

DaleHair 04-03-2012 02:15 AM

Yes, as long as it properly installed.

sils13 04-03-2012 02:16 AM

Personally I would always pull an equipment ground, and never rely on conduit it's only as good as the weakest link.

mux 04-03-2012 02:22 AM

Quote:

Originally Posted by Dgonza9 (Post 3956921)
I read that it was allowable to have up to 16 #12 wires in 3/4" EMT.

Yeah, good luck getting that done. I have 8 and it wasn't easy to pull those. I was going to run a separate ground wire. But now I'm wondering if I can use the metal conduit as the ground here. I don't know if I can pull another wire through.

Acceptable?

Yes, But if you are Piping and pulling a new run size accordingly and pull a ground conductor.
“Sections 250.4(A) and (B)”General Requirements for Grounding
and Bonding” set forth in detail what must be accomplished by the grounding and
bonding of metal parts of the electrical system. The metal parts must form an
effective low-impedance path to ground in order to safely conduct any fault current
and facilitate the operation of overcurrent devices protecting the enclosed circuit
conductors.”

mux 04-03-2012 02:24 AM

Quote:

Originally Posted by sils13 (Post 3956962)
Personally I would always pull an equipment ground, and never rely on conduit it's only as good as the weakest link.

100% agree. Did an electrician properly install that run? Cheap insurance if not.

mux 04-03-2012 02:26 AM

Also if it was that tough to pull you should get some lube.
http://www.homedepot.com/buy/electri...-qt-93126.html

Dgonza9 04-03-2012 02:26 AM

Quote:

Originally Posted by DaleHair
Yes, as long as it properly installed.

I'll run another ground wire.

P-J 04-03-2012 02:28 AM

Quote:

Originally Posted by Dgonza9 (Post 3956921)
I read that it was allowable to have up to 16 #12 wires in 3/4" EMT.
Yeah, good luck getting that done. I have 8 and it wasn't easy to pull those...

You scare the hell out of me. You are on the short circuit of frying yourself into being a crispy critter.

IMHO you do not have a clue.

Sorry... I'm done and will not bother you anymore in any of your multi threads...

Please be very careful in what you choose to do. You are playing a very serious game of "You Bet Your Life".

DaleHair 04-03-2012 02:31 AM

Some receptacles are rated as self grounding but it is a good idea to use a ground wire to the box. I sometimes will use one wire as a pull wire to pull two wires in, it's easiest with wire lube.

Edit: It is also easier to have one person feed the wire in while another pulls.

mux 04-03-2012 02:40 AM

Quote:

Originally Posted by DaleHair (Post 3957021)
Some receptacles are rated as self grounding but it is a good idea to use a ground wire to the box. I sometimes will use one wire as a pull wire to pull two wires in, it's easiest with wire lube.

That's what I would do! You really don't need to push a fish tape through there if its was that tough of a pull. Post a picture of the pipe run. How long how many bends ect.. I'll try and help.


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