I have been stetting up my new shop over the past few months and have
researched dust collection on the net and by reading a few books on the
subject. This morning I found this article on the Wood Whisperer site.
http://home.comcast.net/~rodec/woodw...s.html#who#who

It basically states that there is almost no chance of a fire/explosion from
using ungrounded PVC ducts with your dust collector.

cm

"cm" wrote in message
...
I have been stetting up my new shop over the past few months and have
researched dust collection on the net and by reading a few books on the
subject. This morning I found this article on the Wood Whisperer site.
http://home.comcast.net/~rodec/woodw...s.html#who#who

It basically states that there is almost no chance of a fire/explosion
from using ungrounded PVC ducts with your dust collector.

cm


Because the hose and or PVC pipe will discharge static electricity, I have
been zapped on numerous occasions, I suggest you not have open flammables
close to a possible static electricity discharge location.

Additionally, almost no chance does not exclusively mean no chance. Almost
any home or shop has no chance of a fire or explosion whether it has a dust
collector or not.

Common sense precautions should always be observed.

Leon,

I agree with your comments. Very good point on the flammables.

One of the books I read suggested it is not worth the chance to use PVC
ducting. I would say it is very safe along with some grounding.

cm
"Leon" wrote in message
...

"cm" wrote in message
...
I have been stetting up my new shop over the past few months and have
researched dust collection on the net and by reading a few books on the
subject. This morning I found this article on the Wood Whisperer site.
http://home.comcast.net/~rodec/woodw...s.html#who#who

It basically states that there is almost no chance of a fire/explosion
from using ungrounded PVC ducts with your dust collector.

cm


Because the hose and or PVC pipe will discharge static electricity, I have
been zapped on numerous occasions, I suggest you not have open flammables
close to a possible static electricity discharge location.

Additionally, almost no chance does not exclusively mean no chance.
Almost any home or shop has no chance of a fire or explosion whether it
has a dust collector or not.

Common sense precautions should always be observed.

On Jan 15, 10:07*am, "cm" wrote:
Leon,

I agree with your comments. Very good point on the flammables.

One of the books I read suggested it is not worth the chance to use PVC
ducting. I would say it is very safe along with some grounding.


Oh no! not the PVC grounding thread again...

Wrecker A: It is safe if you ground it.

Wrecker B: You can't ground PVC, it is an insulator.

Wrecker C: Don't listen to B, mine is grounded and I've never been
shocked.

Wrecker B: C has been very lucky.

Wrecker D: I worked for Norad after I graduated from MIT and we were
not allowed to use PVC because of the explosion hazards.

Wrecker E: B & D are overstating the risk, in the past 200 years
Lloyds has never paid an explosion claim for a home workshop using PVC
dust collection.

Wrecker F: What is ABPW? and why can't I get to it.



There, that should about cover it.

Limp Arbor wrote:

On Jan 15, 10:07Â*am, "cm" wrote:
Leon,

I agree with your comments. Very good point on the flammables.

One of the books I read suggested it is not worth the chance to use PVC
ducting. I would say it is very safe along with some grounding.


Oh no! not the PVC grounding thread again...

Wrecker A: It is safe if you ground it.

Wrecker B: You can't ground PVC, it is an insulator.

Wrecker C: Don't listen to B, mine is grounded and I've never been
shocked.

Wrecker B: C has been very lucky.

Wrecker D: I worked for Norad after I graduated from MIT and we were
not allowed to use PVC because of the explosion hazards.

Wrecker E: B & D are overstating the risk, in the past 200 years
Lloyds has never paid an explosion claim for a home workshop using PVC
dust collection.

Wrecker F: What is ABPW? and why can't I get to it.

Wrecker Rob: I was dreaming about Swedish girls, and then thoughts about
ungrounded PVC destroyed it all, in one loud boom.


There, that should about cover it.

Fixed you post.
;-)
--
Froz...

On Jan 15, 11:04*am, FrozenNorth
wrote:
Limp Arbor wrote:
On Jan 15, 10:07*am, "cm" wrote:
Leon,

I agree with your comments. Very good point on the flammables.

One of the books I read suggested it is not worth the chance to use PVC
ducting. I would say it is very safe along with some grounding.

Oh no! not the PVC grounding thread again...

Wrecker A: It is safe if you ground it.

Wrecker B: You can't ground PVC, it is an insulator.

Wrecker C: Don't listen to B, mine is grounded and I've never been
shocked.

Wrecker B: C has been very lucky.

Wrecker D: I worked for Norad after I graduated from MIT and we were
not allowed to use PVC because of the explosion hazards.

Wrecker E: B & D are overstating the risk, in the past 200 years
Lloyds has never paid an explosion claim for a home workshop using PVC
dust collection.

Wrecker F: What is ABPW? and why can't I get to it.

Wrecker Rob: *I was dreaming about Swedish girls, and then thoughts about
ungrounded PVC destroyed it all, in one loud boom.



There, that should about cover it.

Fixed you post.
;-)
--
Froz...

LOL...

Angela likes to study curled up on the couch in the den with this warm
fuzzy, synthetic-fur-like blanket.
Now, with this cold snap, the air is dry.
She got off the couch and shed the blanket and reached for the
aluminium mac keyboard.
The sound of that static crack, and Ang's reaction certainly had the
Swedish twins button up in record speed.

You did forget to mention that the original
poster was probably a "pinko,communist,gay basher,
IRA member,child molester, non-woodworker,
who didn't know his ass from his elbow and
should be in hell for even suggesting something
that dangerous.

Limp Arbor wrote:

Oh no! not the PVC grounding thread again...

Wrecker A: It is safe if you ground it.

Pat Barber wrote:
You did forget to mention that the original
poster was probably a "pinko,communist,

Doesn't "fag" usually come here in that litany?

gay basher,
IRA member,child molester, non-woodworker,
who didn't know his ass from his elbow and
should be in hell for even suggesting something
that dangerous.

Limp Arbor wrote:

Oh no! not the PVC grounding thread again...

Wrecker A: It is safe if you ground it.

--
--
--John
to email, dial "usenet" and validate
(was jclarke at eye bee em dot net)

"cm" wrote in message
...
Leon,

I agree with your comments. Very good point on the flammables.

One of the books I read suggested it is not worth the chance to use PVC
ducting. I would say it is very safe along with some grounding.

cm


I think the chances are slim but possible depending on the circumstances.
Half of my 20 flexible hose is grounded and I get zapped on occasion. For
that matter I get zapped every time I get out of my truck during the winter
months.

Leon wrote:


"cm" wrote in message
...
Leon,

I agree with your comments. Very good point on the flammables.

One of the books I read suggested it is not worth the chance to use PVC
ducting. I would say it is very safe along with some grounding.

cm


I think the chances are slim but possible depending on the circumstances.
Half of my 20 flexible hose is grounded and I get zapped on occasion. For
that matter I get zapped every time I get out of my truck during the
winter months.

In Houston? You gotta be kiddin' me. Can't you pretty much squeeze
water out of the air down there?

That kind of stuff is a regular occurrence for us in AZ. We've got a
humidifier that we run in the winter just to avoid being shocked when
touching any metal.

--
If you're going to be dumb, you better be tough

"Mark & Juanita" wrote in message
...
Leon wrote:


"cm" wrote in message
...
Leon,

I agree with your comments. Very good point on the flammables.

One of the books I read suggested it is not worth the chance to use PVC
ducting. I would say it is very safe along with some grounding.

cm


I think the chances are slim but possible depending on the circumstances.
Half of my 20 flexible hose is grounded and I get zapped on occasion.
For
that matter I get zapped every time I get out of my truck during the
winter months.

In Houston? You gotta be kiddin' me. Can't you pretty much squeeze
water out of the air down there?

Yes you can get a drink of water by simply breathing through your open
mouth, in the Summer months. Winter however can be quite dry and I build up
quite a charge, enough so that I try to temember to discharge myself by
grasping my keys and letting the tip of a key be the ignition point as get
ready to close the door. You can easily see a 1/4" spark.



That kind of stuff is a regular occurrence for us in AZ. We've got a
humidifier that we run in the winter just to avoid being shocked when
touching any metal.

When I visited my sister in Denver it always seemed strange to want to
humidify the air. LOL

cm wrote:

It basically states that there is almost no chance of a fire/explosion from
using ungrounded PVC ducts with your dust collector.

Everything he wrote makes perfect sense to me.

I pulled out my grounds, as they caused clogs. Guess what? I see no
difference, other than a lack of clogs. G

On Thu, 15 Jan 2009 07:02:55 -0700, "cm" wrote:

I have been stetting up my new shop over the past few months and have
researched dust collection on the net and by reading a few books on the
subject. This morning I found this article on the Wood Whisperer site.
http://home.comcast.net/~rodec/woodw...s.html#who#who

It basically states that there is almost no chance of a fire/explosion from
using ungrounded PVC ducts with your dust collector.

That was written several years ago by my friend Rod Cole, formerly of
the Badger Pond woodworking forum (now defunct). He is (or
was--haven't heard from him in a while) an engineer at MIT. I've long
considered this the definitive work on home shop DC systems and PVC
piping.



--
LRod

Master Woodbutcher and seasoned termite

Shamelessly whoring my website since 1999

http://www.woodbutcher.net
http://www.normstools.com

Proud participant of rec.woodworking since February, 1997

email addy de-spam-ified due to 1,000 spams per month.
If you can't figure out how to use it, I probably wouldn't
care to correspond with you anyway.