# 4 THWN insulation repair

[patricknola]

Hey Guys, I repairing a service lateral down here in new orleans where a car hit a customers service. The service conductors came ok except for a nick down to the copper. I'm trying to find out what's the best product for insulation repair. The copper isn't damaged but I do need to do something about the conductors. Thanks.

 

[LarryFine]

A layer of tape equivalent to the existing insulation would work for me.

 

[GoldDigger]

A layer of tape equivalent to the existing insulation would work for me.

Works for the NEC too. If POCO gets involved, all that may change.

Sent from my XT1585 using Tapatalk

 

[infinity]

A 3M Cold Shrink would work too.

 

[goldstar]

I would use an Ilsco insulated barrel crimp or a piercing one like this one :

https://commerce.ilsco.com/e2wShopp...d=3100012541&parentLink=2100001183:3100012541

How much of the wire do you have to repair ? You can probably also use rubber tape and then vinyl over that if the copper is not damaged.

 

[ptonsparky]

GB has a paint on covering that seems to work well, then tape. Or just tape.

 

[ggunn]

A 3M Cold Shrink would work too.

Can you apply something like that to a conductor without having to pull it through?

 

[infinity]

It slides over the conductor.

 

[ggunn]

It slides over the conductor.

I'll hazard a guess that the OP wants to do the repair in place without having to disconnect and repull the conductors..

 

[infinity]

I'll hazard a guess that the OP wants to do the repair in place without having to disconnect and repull the conductors..

You're probably correct, I suggested the cold shrink if tape was unacceptable as Golddigger had mentioned.

 

[don_resqcapt19]

If tape is not acceptable for some reason, "zippered" heat shrink is made by 3M and a few others.

 

[ggunn]

If tape is not acceptable for some reason, "zippered" heat shrink is made by 3M and a few others.

https://www.zippertubing.com/products/heat-shrink/heat-shrink-wrap

Expensive, though.

 

[Cow]

Super 88. Done.

Maybe a little Scotch Kote too, just because I keep it on the truck. Depends on my mood I guess.