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Why is this rusting?


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The brown stain is on the "dead end" wrap on, not on the grounded conductor.

http://www.preformed.com/index.php?opti ... &start=100

Tom Corrigan

I'm not sure the neutral conductor of service drops is described within that link.

I had thought that the center strand of that bare stranded cable was steel. The rest were aluminum. The steel strand bears the tension forces. The aluminum provides most of the conductivity.


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What's up with the "code words" on that page? Several dozen bird names. Some of the other products have similar, some do not. Maybe linemen are bird enthusiasts?

And, why is the conductor in the OP photo only rusting where tied off to the porcelain? Is there something about the AL wrapped around it that inhibits rust?

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