repair electrical wire insulation

[paulga]

The hot wire insulation has some cracks and chaff. A heat shrink tubing does not fit through due to the terminations. should an electrical tape or liquid tape be used to repair this area?

 

[SteveK]

Is that 120VAC wires connected outside of an electrical box?

 

[paulga]

Is that 120VAC wires connected outside of an electrical box?

The wire is partially outside of a strain relief fitting on an elec box

 

[DavidM]

I would just wrap it tightly with electrical tape.

Further to Steve’s post above, NEC requires all AC connections including splices like we see in your pic, to be made in junction boxes.

David

 

[paulga]

I would just wrap it tightly with electrical tape.

Further to Steve’s post above, NEC requires all AC connections including splices like we see in your pic, to be made in junction boxes.

David

Thanks for the point. the elec box requires a larger strain relief fitting that i'm going to buy today. So the connection will be inside a metal box.

 

[TowLou]

What does that power? Is that just the outer jacket? Or is there bare wires?

 

[paulga]

What does that power? Is that just the outer jacket? Or is there bare wires?

It powers a GFCI outlet rated 1800w.
I cannot see bare wires as the chaff is shallow. But it should be repaired to prevent further wear.

 

[CharlieJ]

#4: So does the ABYC.
In that condition tape, goop or heatshrink should be considered a temporary “get home” fix. It should be replaced.

 

[paulga]

#4: So does the ABYC.
In that condition tape, goop or heatshrink should be considered a temporary “get home” fix. It should be replaced.

Thanks. I didn't see it regulates a time frame for the replacement. Or is it specified implicitly

 

[CharlieJ]

It is good engineering practice and common sense.

 

[paulga]

#4: So does the ABYC.
In that condition tape, goop or heatshrink should be considered a temporary “get home” fix. It should be replaced.

a related question is quick disconnect connectors on a rocker switch (20A). Two positive 10g wires need connect to the switch, but the clearance doesn't fit two 10g quick connectors . I'm thinking to strip the nylon away, then apply heat shrink to the crimped termination. Does a heat shrink provide as good insulation as nylon?

 

[CharlieJ]

@paulga #11
Sure.

 

[SteveK]

@paulga #11
Sure.

LOL, I would use the ones without the nylon.
@paulga knows it too, just leading us on.

 

[Iggy]

If there is enough wire, just cut it back to remove the bad section.

 

[TowLou]

No no no….. that switch is 12-24v rated not 120v

 

[paulga]

No no no….. that switch is 12-24v rated not 120v

the wires in post #1 is connected to AC 110v. The switch is for a 12v heater.
they are separate applications.
they are related at the insulation part

 

[paulga]

@paulga #11
Sure.

LOL, I would use the ones without the nylon.
@paulga knows it too, just leading us on.

no, i don't really know the answers.

 

[paulga]

@paulga #11
Sure.

is 1/4" heat shrink tubing (3:1 shrink ratio) often used for 10g stranded wire?

the OD of both the noninsulated wire barrel and the wire in jacket is 0.18"