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Why ground a Plastic dust collector ?

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Forum topic by frostwood posted 11-05-2009 11:15 PM 1798 views 0 times favorited 8 replies Add to Favorites Watch
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frostwood

38 posts in 1909 days


11-05-2009 11:15 PM

I am alittle mistified as to why Dewalt includes a ground wire to ground the plastic dust collector hose on the attachment for the Dewalt 735 planer. The plastic looks to be a non conductive material but your thoughts.

-- With each new day, celebrate life. Love God with all of your heart. Share Jesus with those around you and make a positive impact on those you meet. Bob


8 replies so far

View RexMcKinnon's profile

RexMcKinnon

2593 posts in 1917 days


#1 posted 11-05-2009 11:26 PM

This makes me wonder also. The ground is supposed to be from static with could possibly create a spark. I assume the hose is like a baloon. Rub it on your head and stick it too a wall.LOL I think saw dust moving in the hose would create the same effect. The part that gets me thinking is the ground is attached to one end. If the hose is non conductive how does it get rid of static on it’s entire length?

-- If all you have is a hammer, everything looks like a nail!

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Dez

1121 posts in 2799 days


#2 posted 11-05-2009 11:29 PM

Grounding the static charge that can build up is a good idea. While I have never heard of a fire or explosion caused by a static discharge in a hobby shop, I have been shocked by the static buildup in a plastic collection hose!
Hurts a bunch and if your fingers were in the wrong place when it happened you could be seriously hurt!
(Zap, Jump, Zing and Bleed)

-- Folly ever comes cloaked in opportunity!

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Dez

1121 posts in 2799 days


#3 posted 11-05-2009 11:34 PM

On my drum sander I ended up applying aluminum tape the length of the hose and making sure the grounding wire was in good contact with it to stop the discharge. (the same aluminum tape HVAC folks use to seal their ducting)
I have been shocked as far as 12 inches away from the tube on my sander.
A buddy of mine used S&D for his system and where the collection pipe was close to the operator he would sometimes get shocked so he applied the same tape on the interior of the pipe to eliminate the discharge.

-- Folly ever comes cloaked in opportunity!

View RetiredCoastie's profile

RetiredCoastie

999 posts in 1905 days


#4 posted 11-06-2009 01:08 AM

As air moves across plastic it causes a buildup or potential for static electricity and the ground gives the electricity a ground path to dissipate.

-- www.thepatriotwoodworker.com Proud Supporter of Homes For Our Troops

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MedicKen

1602 posts in 2184 days


#5 posted 11-06-2009 01:27 AM

Static electricity is a real problem here. We have a very dry climate and its the perfect conditions for static. I have zapped myself more than once on the plastic hoses for my dust collector and shop vac. It smarts. I use my shop vac when I am using the router table and I must say there is more dust attached to the outside of the hose when I am finished as there is in the vacuum.

-- My job is to give my kids things to discuss with their therapist....medic20447@gmail.com

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frostwood

38 posts in 1909 days


#6 posted 11-06-2009 04:30 PM

Thanks to all for taking the time to reply. Very helpful.

-- With each new day, celebrate life. Love God with all of your heart. Share Jesus with those around you and make a positive impact on those you meet. Bob

View Kent Shepherd's profile

Kent Shepherd

2698 posts in 2008 days


#7 posted 11-06-2009 07:00 PM

We sold a Delta dust collector a while back. He complained about the lack of suction. I told him again that he needed to ground it. When he finally did, all was well. It was plastic pipe and static was the culprit.

-- She thought I hung the moon--now she just thinks I did it wrong

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frostwood

38 posts in 1909 days


#8 posted 11-06-2009 08:05 PM

Actually mine is an ejection system on the 735 dewalt planer. It wound not make a difference I suppose as it is still dust moving through the plastic tube. I did go ahead a ground it. It is the new planer that I picked up on the clearance deal of $274.00 so I have not had an opportunity to use it as of yet.

-- With each new day, celebrate life. Love God with all of your heart. Share Jesus with those around you and make a positive impact on those you meet. Bob

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