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Old 05-06-2013, 02:55 PM   #1
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Low volts


If a 10 strand neutral wire has 2 of the wires burnt will this have any effect on the volts that it will carry? These are overhead. It looks like one hot wire may be burnt also. Curious

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Old 05-06-2013, 03:33 PM   #2
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Low volts


Under lightly loaded conditions, the voltage will be normal on a damaged conductor. As the amount of current drawn increases, the voltage goes down in proportion to the resistance and heat builds up at the damaged location, possibly leading to flames.

If it's damaged, why not replace it? Continuing to use damaged conductors won't save you any money when your house becomes a pile of ashes.

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Old 05-06-2013, 04:22 PM   #3
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Low volts


The voltage rating would be unchanged. For common wires in household usage the voltage rating is usually 250 volts or 600 volts and marked on the outside.

Two of ten strands is 20%. You could safely assume that you can run 80% of the normal amperes for example 16 amps (not continuous usage) for 12 gauge wire.

If you snipped off the end that only had 8 strands remaining, is it still long enough to reach the terminal or wherever it is to be connected?
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Old 05-06-2013, 05:36 PM   #4
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Low volts


You can PROBABLY get by with it under light,even moderate loads.... but is that SMART.

I agree with Tyler above (Warning ! I'm not a SPARKY, but a GC)

Isn't your real concern as to why they are burnt initially?

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Old 05-06-2013, 06:03 PM   #5
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Low volts


Quote:
Originally Posted by rich6111 View Post
If a 10 strand neutral wire has 2 of the wires burnt will this have any effect on the volts that it will carry? These are overhead. It looks like one hot wire may be burnt also. Curious
Indirectly YES!
Reduced wire size will decrease its amp carrying capacity !
So under heavy loads the mains voltage could decrease,
Under light loads it might be ok.
There are a few variables to consider.
But generally YES!

The wire might be savable,
but that decision should only be made by
an experienced electricain.
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Old 05-06-2013, 06:11 PM   #6
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Think of it this way maybe..... you have wire (at least a short piece of it which is just as dangerous) that is too small for it's breaker!

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