On 8/31/14, 6:16 PM, Lee Hart wrote:
From: Peter C. Thompson
In any case, as long as surplus copper can bring in some cash, there
will always be cable theft.
Then make the wire out of something else. Aluminum, or even steel.
I had problems with the neighbor cutting the perimeter wire for my Robomower
(which is an EV, so it's on-topic, right?). I finally replaced it with
plastic-jacketed steel aircraft cable. End of problem :-)
Utilities and hams have used "copperweld" for many years for airborne power
lines and antenna wires. This is steel wire with a copper plating. If you have enough
cross sectional area, you can still have a low enough resistance. It's far stronger and
cheaper than copper. And much harder to cut, and next to worthless on the scrap market.
Excellent idea - only problem is that the standards for the supply
device has been set on copper for a few years now. :( I'll ask some of
the guys next week about this problem (standards meeting in Berlin for
wireless charging).
Cheers!
Peter
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