5 Dec
1998
5 Dec
'98
8:57 a.m.
On Sat, 5 Dec 1998, Russ Blakeman wrote:
Eric Smith wrote:
Back in my younger days, when I remember static drain chains on tank
trucks being common, they were always ferrous and sparks as the steel
abraded on stone in the pavement surface was the norm.
- don
Christian Fandt <cfandt(a)netsync.net>
wrote:
It's not since there shouldn't be sparks as the chain or strap is
supposed to be non-ferrous, ie brass or copper. Sure it wears out but no
sparks. Just a good ground to earth to drain the buildup from the frame. You've probably seen fuel tanker trucks with
a metal chain
dragging. It too was used as a static drain for obvious reasons ;)
I only noticed one of these for the first time about a month ago. I
was wondering why they were dragging a chain; it was throwing lots of
sparks. Didn't seem like a great idea to me, but what do I know?