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Grounding a dust collection system, stuff I should know

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Forum topic by Kenny posted 02-12-2012 03:16 AM 899 views 0 times favorited 4 replies Add to Favorites Watch
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Kenny

260 posts in 1145 days


02-12-2012 03:16 AM

So, as the title states, I’m looking for some info on grounding a DC system. I did a search, but I still have some things I’m not positive on. I’ve read a lot of conflicting info on the subject, and I really haven’t gotten any more knowledge than before I started looking into it, just a bit more confused.

So, I’m hoping that if I lay down the basics of what I’m looking to set-up, I can get some advise on how to properly ground it.

So, to start off, I have a bunch of 4” DWV PVC pipe (the thin “drain, water and vent” stuff) that I plan to make the main runs from. The runs will be short, with the longest stretch of PVC being under 15’.

I have ordered a 10’ section of “4 Black Super Flex Hose from Peachtree, which has a metal wire that is said can be used for grounding.

I am going to run the HarborFreight 2hp DC, if that makes any difference.

If there is anything else that is important to know and/or ground, just let me know and I’ll fill in any blanks needed.

I just don’t need any sparks catching my DC on fire. I AM the 1 in a million guy it will happen to, trust me on that!

Thanks

-- Kenny


4 replies so far

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Grandpa

3190 posts in 1372 days


#1 posted 02-12-2012 03:43 AM

http://home.comcast.net/~rodec/woodworking/articles/DC_myths.html
This link will tell you that it is impossible to ground an insulator. It will further tell you that there has never been a recorded incident of an explosion or fire in a home dust collection system that was cause by static. I do think static will be on the plastic pipe and it will give you a tingle. It is like scooting your rubber soled shoes on carpet int he dry weather and touching a light switch or door know. All the things I have read tell me that the best way to stop the static is to wrap the pipe in foil wrap like heavy aluminum wrap such as we cook with. I think it would be best held in place with contact cement but I think this is probably not used often because it is also more difficult and time consuming. We all want it done and over NOW! IF there is a need to “ground” a PVC pipe what should we do with the Clear Vue brand cyclone dust collectors. Look those up on the internet and check them out. Should we wrap the cyclone on one of the better systems on the market. Bill Pendtz designed a dust collection system after health problems and Clear Vue uses it. Read all the things on Bill Pendtz you can find too. It is all over the internet.
Good luck on the endeavor. I am sure you will get a bunch of people commenting and as many opinions. Just remember that opinions are like belly buttons. We all have one.

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BobM001

388 posts in 1027 days


#2 posted 02-12-2012 04:55 AM

If you run some of this on the surface then connect a wire to a source of ground this will dissipate the static charge. Copper tape with conductive adhesive

-- OK, who's the wise guy that shrunk the plywood?

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DIYaholic

13825 posts in 1372 days


#3 posted 02-12-2012 05:30 AM

BobM001,

I’m running metal ducting, but for those running PVC will certainly benefit from this. That looks like just the right stuff to prevent clogs within the PVC vs bare copper wire run within. Great idea!

-- Randy-- I may not be good...but I am slow! If good things come to those who wait.... Why is procratination a bad thing?

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Kenny

260 posts in 1145 days


#4 posted 02-12-2012 06:12 AM

After reading the article in the first two comments, I’m back at my original standing, I’m not going to do anything but ground the collector itself and maybe the trashcan separator.

I had always thought the risk of explosion in PVC was remote at best, but after being bombarded on another forum a while back about the whole grounding issue, and then seeing a bazillion threads on it, I figured it may have some merit.

Turns out I was worried about nothing.

If it turns out that the PVC shocks the crap out of me all the time (which I can’t see happening, as I don’t plan to fondle it all too often), I might get ambitious and run a strip of aluminum tape down the side of it or something (may even use copper if I’m feeling generous).

But for now, I’m going to just empty the can of affix a metal lid to it at night (held down with something, of course).

Thanks, this was much more helpful than what I was expecting!

-- Kenny

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