[Robotgroup] Dust collection system & Static?

[Robo Al]

Just the other day I was reading about this. It seems some people
are using a grounding wire coiled against the inside (I didn't
see how they actually were able to do it).

But the recommendation that made more sense was to use the HVAC
metal ducts, and ground them.

Alberto

On Wed, 2007-05-30 at 13:19 -0500, Vern Graner wrote:
> A friend of mine has a dust collection system he made in his wood shop.
> It uses 4" PVC pipe to distribute the vacuum from his collection system
> around the shop to various tools.
> 
> He had heard from other wood workers that you need to use some sort of
> grounding as the sawdust moving through the PVC can lead to static
> buildup causing 1) dust to get clogged up in the pipe and 2) possible
> static discharge that can spark a dust explosion.
> 
> Does anyone have details on this? is it a major concern and, if so, is
> there a "normal" method that can be used to alleviate this problem?
> 
> Vern