DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > Electrical and Wiring > shop vac no ground in plug?




Reply
 
Thread Tools Search this Thread Display Modes
Old 04-16-2014, 09:22 AM  
Jungle
Senior Member
 
Join Date: May 2013
Posts: 334
Liked 29 Times on 26 Posts
Likes Given: 31

Default shop vac no ground in plug?

I was wondering if the shop vacs as are meant for wet and dry why do they have only 2 prongs on the plug? I thought the things close to water are suppose to have ground?



__________________
Jungle is offline  
 
Reply With Quote Quick reply to this message
Old 04-16-2014, 09:44 AM  
Wuzzat?
Banned
 
Join Date: Jan 2010
Posts: 2,328
Liked 167 Times on 154 Posts
Likes Given: 94

Default

Quote:
Originally Posted by Jungle View Post
I was wondering if the shop vacs as are meant for wet and dry why do they have only 2 prongs on the plug? I thought the things close to water are suppose to have ground?
Doubly insulated.
Apparently UL has signed off on this.
I think between this method, grounding pins, GFCIs (UL spec 943) and common sense, as long as less than 2000 people die each year in the US no more resources should be devoted to this but
http://www.nema.org/pages/default.aspx
may think otherwise.
IIRC, the US elec. code wants GFCIs in car washes even though there has never been an incident.

A lot more lives could be saved by not having cigarettes.


__________________

Last edited by Wuzzat?; 04-16-2014 at 09:50 AM.
Wuzzat? is offline  
 
Reply With Quote Quick reply to this message
Old 04-16-2014, 10:46 AM  
JoeD
Contractor
 
Join Date: Mar 2006
Location: Welland, Ontario
Posts: 985
Liked 108 Times on 88 Posts
Likes Given: 4

Default

If it is plastic vacuum like many of them, what exactly do you expect the ground pin to ground. It is only for exposed metal parts.

__________________
JoeD is offline  
speedy petey Likes This 
Reply With Quote Quick reply to this message
Old 04-16-2014, 11:56 AM  
nealtw
Contractor
 
Join Date: Nov 2010
Location: vancouver, b.c.
Posts: 10,762
Liked 928 Times on 828 Posts
Likes Given: 1599

Default

With double insulated tools it is important that the plug has one knife blade bigger that the other. This to make sure the power is going in the right direction. Not rated for use in the rain so keep it dry.
Power leaking to ground will still kick a gfci. In wet conditions with a saw or drill running the power that goes thru your hand and back to nuetral will not kick a gfci.

__________________
nealtw is offline  
 
Reply With Quote Quick reply to this message
Old 04-16-2014, 12:02 PM  
Wuzzat?
Banned
 
Join Date: Jan 2010
Posts: 2,328
Liked 167 Times on 154 Posts
Likes Given: 94

Default

Quote:
Originally Posted by nealtw View Post
the power that goes thru your hand and back to nuetral will not kick a gfci.
And current through your hand is much better than current through your chest unless you are getting defibrillated.
__________________
Wuzzat? is offline  
 
Reply With Quote Quick reply to this message
Old 04-16-2014, 12:07 PM  
nealtw
Contractor
 
Join Date: Nov 2010
Location: vancouver, b.c.
Posts: 10,762
Liked 928 Times on 828 Posts
Likes Given: 1599

Default

Quote:
Originally Posted by Wuzzat? View Post
And current through your hand is much better than current through your chest unless you are getting defibrillated.
In that case you are sharing the power with the motor so I don't know how much you get but it is exciting.
__________________
nealtw is offline  
 
Reply With Quote Quick reply to this message
Old 04-16-2014, 03:16 PM  
Wuzzat?
Banned
 
Join Date: Jan 2010
Posts: 2,328
Liked 167 Times on 154 Posts
Likes Given: 94

Default

Well, that's one way to put it.
Between this and waterboarding I think I'd choose the shock.

If you can feel it it's >1 mA. I think the GFCI people have declared that 1/4 A is the most you can get with 120v but I lost that graph and hardly anyone gets this much.



__________________

Last edited by Wuzzat?; 04-16-2014 at 03:24 PM.
Wuzzat? is offline  
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Similar Threads
Thread Thread Starter DIY Home Repair Forum Replies Last Post
Electricity to shop bjones Electrical and Wiring 2 01-10-2013 07:02 PM
Plug not working coolluke Electrical and Wiring 2 08-11-2011 01:40 PM
plug does not fit in outlet pedsot Electrical and Wiring 8 05-11-2008 05:18 AM
clean out plug? shovelshort Plumbing Forum 1 05-11-2007 10:47 AM
shop-vac asbestos General Home Improvement Discussion 1 11-19-2006 03:22 PM

Newest Threads

LATEST SPONSOR DEALS