[TowerTalk] THHN

[Lux, Jim]

On 3/13/21 9:46 AM, Tom Osborne Sr. wrote:
> Problem with copperweld is rust.  When you scratch the copper away it makes
> a rusty mess.  I had terrible problems with copperweld twin lead rusting
> where it connected to the antenna.  73
> Tom W7WHY

Given the thousands upon thousands of miles of copper clad steel 
installed, there must be a standardized way to deal with the scratch off 
the copper problem. Probably some variant of the Western Union splice.

For what it's worth, on the *thinnest* copper clad (21% IACS), on AWG 
12, the cladding is 2.4 mils. That's fairly thick compared to the 81 mil 
overall diameter.

https://www.copperweld.com/application/files/4915/3833/2604/Welded_Copper-covered_Steel_CCS_21.pdf


I wonder if "copperweld" twin lead is more like the very thin silver 
flash on hookup wire to make it solderable? Or that inexpensive fairly 
small gauge copper coated speaker wire?f