REFLECTOR:FW: Buss material

[reflector@tvbf.org]

Brass - even more stable than copper, easy to work, easy to get.  And split 
lock washers to keep up pressure even if the threaded item works a touch loose.

At 09:16 PM 4/24/04, you wrote:
>Al,
>I would prefer copper.  Aluminum has a higher expansion rate than copper 
>when subjected to heat.  This can lead to clamps and fasteners loosening 
>over time.  Commercial and residential wiring that uses aluminum, require 
>the use of connectors that are specifically rated for aluminum wire.  As a 
>plant engineer, I have always recommended torquing electrical distribution 
>busses once a year (they do loosen.)
>Joe