Wire insulation damge: when to be concerned?
#1
Member
Thread Starter
Wire insulation damge: when to be concerned?
During pulling in wire into a 90 degree elbow like this:
https://www.homedepot.com/p/Halex-3-...4407/100111131
I noticed that a 6 AWG stranded wire outer skin was slightly damaged. It append when when squeezing in the loop into place. I t almost seems that there is an outer foil layer and inner insulation. It seems the outer foil only got damaged. I can put electrical tape around it for extra protection. Or redo the pull.....
Just wondering if I should be concerned or not?
P.S. Did not expect inside of elbow be that sharp. Meanwhile, I put FMC Anti-Short Bushings inside.
https://www.homedepot.com/p/Halex-3-...4407/100111131
I noticed that a 6 AWG stranded wire outer skin was slightly damaged. It append when when squeezing in the loop into place. I t almost seems that there is an outer foil layer and inner insulation. It seems the outer foil only got damaged. I can put electrical tape around it for extra protection. Or redo the pull.....
Just wondering if I should be concerned or not?
P.S. Did not expect inside of elbow be that sharp. Meanwhile, I put FMC Anti-Short Bushings inside.
#2
Member
CasualJoe
voted this post useful.
#3
Member
Don't know all the circumstances involved here, but I would replace the wire because there is no way to determine the degradation of the insulation. Maybe the damaged portion can be cut out and the remaining piece used elsewhere.
#5
Member
Thread Starter
I attached two images: cable wrapper and a sample where I am trying to show outer insulation.



Last edited by PJmax; 09-04-19 at 04:40 PM. Reason: resized pictures
#8
Member
Thread Starter
well, the outer layer it is not clear. It is black.
I could remove the damaged outer layer and see if it cut into the inner insulation.
But sounds like more than likely I am ok.
My other phase did not get damaged. My ground a little bit. But I don't think I should be concerned about ground in EMT.
I could remove the damaged outer layer and see if it cut into the inner insulation.
But sounds like more than likely I am ok.
My other phase did not get damaged. My ground a little bit. But I don't think I should be concerned about ground in EMT.