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Question:

Electricians: Is it safe to use electrical tape on a electrical cord semi damaged by vaccume run over?

(No I didn't do it.) I have a used vacuum and it has some damage to it's electrical cord by someone running over it several times. Some of the electrical wires are exposed but there is no damage to the wires, so it seems. What do you recommend other than replacing the vacuum? Thanks

Answer:

Cheap Electrical Tape
You say that the cord is damaged and the electrical wires are exposed. I'm working on an assumption that the outer (black) insulation of the cord is damaged and you can actually see the inner insulation that covers the wires inside the cord. ( black, white and green) If this is a correct assumption, it is my suggestion that you purchase some Scotch 33+ electrical tape and wrap the damaged part of the cord using 1/2 wrap each time you go around the cord. Starting 2 from the end of the damaged area. wrap the tape, keeping it pulled taunt, and go past the damaged area 2 down. 1X is good. 2X even better. The use of jap crap (cheap) electrical tape is just asking for trouble. Yes, the cheap tape is .55 a roll and Scotch 33+ is $5.00 a roll, but I promise you that you do this once and you'll never have to do it again. Unless you loan the vacuum out to the person that did it in the first place. (Ha-Ha) Now, if there is ANY copper showing in the damaged area, please, please do NOT try to repair it. Replacement is safer. Good luck in all you do and may God bless.
yes, if the conductor is not exposed. Make sure to put a minimum of 2 layers of tape, more is safer.
Even if its showing copper it will be perfectly ok to use insolation tape. Wrap each wire carefully so that no copper is touching each other and then wrap the tape around the both of them, Make sure you use quite a bit for extra insulation. I have done this a 100 times or more.
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