On topic: Serious static problem

From: Don Maslin <donm_at_cts.com>
Date: Sat Dec 5 16:57:31 1998

On Sat, 5 Dec 1998, Russ Blakeman wrote:

> Eric Smith wrote:
>
> > Christian Fandt <cfandt_at_netsync.net> wrote:
> > > 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?
>
> 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.
 
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
Received on Sat Dec 05 1998 - 16:57:31 GMT