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04-03-2012, 02:06 AM
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#1
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Join Date: May 2010
Location: Evanston, Illinois
Posts: 1,168
Liked 9 Times on 9 Posts
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Can I use EMT as a ground?
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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?
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on Deck: Dogfish Head Indian Brown Clone, Ocktoberfast Ale, Rodenbach Clone.
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04-03-2012, 02:15 AM
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#2
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Join Date: Feb 2012
Location: Dallas, TX
Posts: 66
Liked 1 Times on 1 Posts Likes Given: 1
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Yes, as long as it properly installed.
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04-03-2012, 02:16 AM
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#3
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Feedback Score: 1 reviews
Join Date: Jul 2010
Location: Cedar Rapids, IA
Posts: 128
Liked 5 Times on 4 Posts Likes Given: 3
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Personally I would always pull an equipment ground, and never rely on conduit it's only as good as the weakest link.
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04-03-2012, 02:22 AM
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#4
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Feedback Score: 2 reviews
Join Date: Sep 2011
Location: Chicago, IL - Illinois
Posts: 1,686
Liked 48 Times on 44 Posts Likes Given: 18
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Quote:
Originally Posted by Dgonza9
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?
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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.”
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04-03-2012, 02:24 AM
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#5
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Feedback Score: 2 reviews
Join Date: Sep 2011
Location: Chicago, IL - Illinois
Posts: 1,686
Liked 48 Times on 44 Posts Likes Given: 18
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Quote:
Originally Posted by sils13
Personally I would always pull an equipment ground, and never rely on conduit it's only as good as the weakest link.
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100% agree. Did an electrician properly install that run? Cheap insurance if not.
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04-03-2012, 02:26 AM
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#6
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Feedback Score: 2 reviews
Join Date: Sep 2011
Location: Chicago, IL - Illinois
Posts: 1,686
Liked 48 Times on 44 Posts Likes Given: 18
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04-03-2012, 02:26 AM
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#7
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Feedback Score: 0 reviews
Join Date: May 2010
Location: Evanston, Illinois
Posts: 1,168
Liked 9 Times on 9 Posts
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Quote:
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Originally Posted by DaleHair
Yes, as long as it properly installed.
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I'll run another ground wire.
__________________
On Tap: Surly Furious, Belgian Trippel, Da Yoopers Pale Ale, Chocolate Lager, Wee too Heavy (barrel aged Scottish), Belgian Barrel Aged Barleywine, Simcoe Pale Ale, Galaxy/Nelson Sauvin IIPA, Broken foot Pilsner, Da Yooper's Oatmeal Stout
Bourbon Barrel
Kegged:
Fermenting Gumballhead with Nelson Sauvin
on Deck: Dogfish Head Indian Brown Clone, Ocktoberfast Ale, Rodenbach Clone.
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04-03-2012, 02:28 AM
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#8
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Feedback Score: 0 reviews
Join Date: Mar 2010
Location: Charlotte, NC
Posts: 2,776
Liked 146 Times on 120 Posts Likes Given: 197
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Quote:
Originally Posted by Dgonza9
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...
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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".
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04-03-2012, 02:31 AM
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#9
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Feedback Score: 0 reviews
Join Date: Feb 2012
Location: Dallas, TX
Posts: 66
Liked 1 Times on 1 Posts Likes Given: 1
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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.
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04-03-2012, 02:40 AM
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#10
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Feedback Score: 2 reviews
Join Date: Sep 2011
Location: Chicago, IL - Illinois
Posts: 1,686
Liked 48 Times on 44 Posts Likes Given: 18
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Quote:
Originally Posted by DaleHair
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.
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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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