Can I use PVC tube with metal boxes?


  #1  
Old 12-16-06, 07:54 AM
6
Member
Thread Starter
Join Date: Dec 2006
Location: USA
Posts: 90
Upvotes: 0
Received 0 Upvotes on 0 Posts
Can I use PVC tube with metal boxes?

In my garage I plan to run a 1/2" PVC from the sub-panel to a 3 gang light switch box about 4 feet away and to a GFCI in a metal box just below the panel. In one of the Self-Help Wiring books at Lowes it said to only use PVC with PVC Boxes and not metal boxes.

My friends newer home has PVC for his main feed into his 200 Amp Main panel, so can I use the PVC for my project or do I have to use metal conduit?

Thanks
 
  #2  
Old 12-16-06, 08:12 AM
R
Member
Join Date: Sep 2003
Location: Central New York State
Posts: 13,245
Upvotes: 0
Received 0 Upvotes on 0 Posts
You can use PVC with metal boxes. They make connectors to use for the connection. The connector will glue on to the conduit and there will be a lock nut for inside the box. You must make sure that you run a ground wire through the conduit and properly ground each metal box.
 
  #3  
Old 12-16-06, 11:31 AM
I
Forum Topic Moderator
Join Date: Feb 2005
Location: Near Lansing, Michigan
Posts: 9,785
Upvotes: 0
Received 45 Upvotes on 43 Posts
> garage I plan to run a 1/2" PVC from the sub-panel to a 3 gang light switch
> box about 4 feet away and to a GFCI in a metal box just below the panel.

PVC conduit is not substantial enough to qualify as protection for the wiring, so if the wiring is in an exposed area that could be subject to damage use EMT conduit instead. If the run is not in an exposed area, then PVC with glue by thread box connectors and locknuts are fine.
 
  #4  
Old 12-16-06, 05:25 PM
itsunclebill's Avatar
Member
Join Date: Jan 2006
Location: Denver, CO area
Posts: 207
Upvotes: 0
Received 0 Upvotes on 0 Posts
Schedule 40 PVC doesn't qualify as protection for wires where subject to damage, but schedule 80 does.
 
  #5  
Old 12-16-06, 07:28 PM
L
Banned. Rule And/Or Policy Violation
Join Date: Feb 2006
Location: North of Boston, MA.
Posts: 1,967
Upvotes: 0
Received 0 Upvotes on 0 Posts
Question

Do we meen PHYSICAL damage?

Schedule 40 PVC, has the same rateing as EMT, no?
 
  #6  
Old 12-16-06, 07:42 PM
william tell's Avatar
Member
Join Date: Sep 2006
Posts: 165
Upvotes: 0
Received 0 Upvotes on 0 Posts
Please show the code even mentions sched. 40
please give art, #
 
  #7  
Old 12-16-06, 07:54 PM
L
Banned. Rule And/Or Policy Violation
Join Date: Feb 2006
Location: North of Boston, MA.
Posts: 1,967
Upvotes: 0
Received 0 Upvotes on 0 Posts
Whats your question?

What would you use rising a pole next to a street. If it must rise in NON-Metalic conduit.
 
  #8  
Old 12-16-06, 08:15 PM
william tell's Avatar
Member
Join Date: Sep 2006
Posts: 165
Upvotes: 0
Received 0 Upvotes on 0 Posts
In what article does the code mention schedule 40 pvc
please give article #
 
  #9  
Old 12-16-06, 08:35 PM
L
Banned. Rule And/Or Policy Violation
Join Date: Feb 2006
Location: North of Boston, MA.
Posts: 1,967
Upvotes: 0
Received 0 Upvotes on 0 Posts
Question

UNCLE!

Whats the point? We understood the question.
Intermediate non metalic, Riged non metalic... Get it.
For the lay (Non-Electrician) person whom we try to help, sch-40-sch80- helps identify what they need.

Send your helper out tommorow for some Non metalic conduit, What will you ask them to get?


Again: What would you use rising a pole next to a street? If it must rise in NON-Metalic conduit.
 
  #10  
Old 12-17-06, 07:04 AM
AxlMyk's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Dec 2005
Location: Earth
Posts: 869
Upvotes: 0
Received 0 Upvotes on 0 Posts
Not being an electrician, it just seems like smart thinking to use sched. 80 pvc..
 
  #11  
Old 12-17-06, 09:50 AM
I
Forum Topic Moderator
Join Date: Feb 2005
Location: Near Lansing, Michigan
Posts: 9,785
Upvotes: 0
Received 45 Upvotes on 43 Posts
Good luck trying to find Schedule 80 in less than 1-1/4". I've looked; none of the supply houses or the big boxes around here carry it. The supply houses can order it by the pallet, but who the hell could ever use 6000' of 3/4" PVC schedule 80 when EMT or RMC is probably more appropriate anyway?
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: