Set Screw Connector For EMT Conduits Not Bottoming - Electrical - DIY Chatroom Home Improvement Forum


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Old 07-20-2014, 06:25 PM   #1
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Set screw connector for EMT conduits not bottoming


Well, I got a 1/2" set screw connector along a run of EMT conduit in the attic that came loose.

May be from someone stepping on it, or may be whoever ran it pulled on it too hard on the other end.

Anyways it came apart.

I loosened up the connector and used all my JEDI FORCE to pull the pipes back together as much as I could and with a helper was able to get the pipes back into the connector and tightened the set screws.

HOWEVER, I know the pipes didn't bottom to the full depth inside the connector, they went in deep enough for the screws to catch, and that is after I went downstream to the next connector and loosened that one and steal about 1/4" from there.

So now I have TWO EMT connectors that are not bottomed. I used electrical tape over the joints to give it extra reinforcement. I thought about using epoxy glue to glue it to ensure no chance of it coming apart.

Is that OK? Or not?

It would be a real pain to run new conductors as I have 4 #12 in there over 75', and adding a box in the attic is trading one problem for another IMHO.

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Last edited by miamicuse; 07-20-2014 at 06:30 PM.
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Old 07-20-2014, 06:48 PM   #2
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Set screw connector for EMT conduits not bottoming


If it has a ground wire I wouldn't worry.

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Old 07-20-2014, 07:22 PM   #3
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Set screw connector for EMT conduits not bottoming


I would worry if you crimped into the edge of the conduit as it may nick into conductor.

As stated (and the conduit isn't crimped), if there's a ground don't worry much.
You done good stealing from the other side to make up the gap. You could also take some up from the couplings if you wanted.

Also, if your concerned about ground if there is non you could put an external bonding jumper.

epoxy? not sure about that.

1- ground
2- protection
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Old 07-20-2014, 08:14 PM   #4
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Set screw connector for EMT conduits not bottoming


There is no ground conductor the conduit acts as ground. The conductors are fine not crimped or nicked.

The thinking behind the epoxy is to stop it from pulling apart again. I don't think it will just pull apart - I tried - but if someone stands on the joint and bounce up and down it probably will come apart.

Last edited by miamicuse; 07-20-2014 at 08:21 PM.
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Old 07-20-2014, 08:28 PM   #5
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Set screw connector for EMT conduits not bottoming


Quote:
Originally Posted by miamicuse View Post
There is no ground conductor the conduit acts as ground. The conductors are fine not crimped or nicked.

The thinking behind the epoxy is to stop it from pulling apart again. I don't think it will just pull apart - I tried - but if someone stands on the joint and bounce up and down it probably will come apart.
why would someone maliciously bounce on the fitting.

if your concerned put (nail) something like a piece of wood by it so they kick it or step on it instead.
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