Repair Electrical Cords

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dhenson

Member
Is it OK to repair a SO cord with shrink wrap if the insultation on the wires inside is not harmed? Thanks.
 

tom baker

First Chief Moderator
Staff member
Re: Repair Electrical Cords

Depends on the size see 400.9 for splices. Smaller cords are not worth repairing. Also what is the cord for, portable cord or to an appilance?
 

charlie b

Moderator
Staff member
Location
Lockport, IL
Occupation
Retired Electrical Engineer
Re: Repair Electrical Cords

What is broken? If the insulation is ?not harmed,? then why would shrink wrap be even considered as a repair tool? Are you saying that the cord was cut, that you have managed (or intend) to reattach the wires to each other (using some method that you have not yet described), and are now asking whether a shrink wrap would serve as a substitute for the original insulation?
 

hbiss

EC, Westchester, New York NEC: 2014
Location
Hawthorne, New York NEC: 2014
Occupation
EC
Re: Repair Electrical Cords

What he is saying is that just the outer jacket has been damaged, the inner conductors and insulation as well as the filler are fine.

Oftentimes this gets wrapped up with electrical tape, you want to use shrink tubing. In my opinion neither is a suitable solution since neither will result in the cable being restored to its original condition where the repair has been made and will thus void its listing.

-Hal
 

brentp

Senior Member
Re: Repair Electrical Cords

"In addition, section 1926.405(g)(2)(iii) states that "flexible cords shall be used only in continuous lengths without splice or tap. Hard service flexible cords No. 12 or larger may be repaired if spliced so that the splice retains the insulation, outer sheath properties, and usage characteristics of the cord being spliced." This standard precludes the repair of flexible cords smaller than No. 12."

Does anyone know of a method that would comply with section 1926.405(g)(2)(iii)?
 

mclain

Member
Re: Repair Electrical Cords

Brentp
3 M sells splice kits that we use to repair cables. It comes with a two-piece plastic mold and a two part liquid compound that is mixed together then poured into the mold. I will have to look on the box but I am sure it is a UL list product. The kits are available in two forms. One gives you a soft flexible rubber type splice and the other gives you a hard non-flexible splice. For smaller cables we just replace the cable. The large cables we do use the splice kits on are normally changed out as soon as operations permits.


Don McLain
 
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