[TowerTalk] Soldering Ground Connections

[Jim Lux]

At 11:50 AM 7/6/2006, Gary Schafer wrote:


> > -----Original Message-----
> >
>Solder will corrode in the ground or in the weather.
>Solder will melt when high current goes through it long before the conductor
>melts.

There is a substantial difference between low temp, lead-tin type, soft 
solders and hard solder/brazing rod.  I would think that silver based hard 
solder would be a better conductor than the copper it's bonding, and is 
quite mechanically strong.  Likewise, I wouldn't expect it to corrode 
particularly quickly, assuming appropriate metal combinations are 
chosen.  For instance, there's a lot of refrigeration tubing out in the 
weather that's hard soldered/brazed, as well as various and sundry 
automotive components in harsh environments.