Bob's Shop Notes:
Copper Clad Aluminum Wire


Copper on the outside, aluminum on the inside . . .

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This wire is about the same stiffness as 22759 Tefzel in the same AWG size. When sheared off, the ends show the aluminum core . . .


Aluminum wire in copper wire clothing . . .

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When stripped in preparation for termination, the exposed strands look for all the world like pure copper.


Solder it up . . .

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This wire behaves as if it were solid copper. A soldering operation will alloy with the wire surface just as if it were of copper throughout.


The finished installation . . .

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Plain vanilla heat-shrink is fine, double-wall adhesive shrink is better.