ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
twh 3
Recent Posts
Ceiling fan distance from outdoor hot tub
by gfretwell. 11/16/17 02:18 AM
diazed fuses
by Texas_Ranger. 11/13/17 03:02 PM
Theft deterrent alarm
by gfretwell. 11/12/17 01:39 PM
EEPROM errors on XC7Z010-2CLG225I chip
by twh. 11/07/17 05:45 PM
Blackened bare copper in panel ?
by twh. 11/04/17 11:16 AM
New in the Gallery:
Gallery Test
Popular Topics(Views)
242,563 Are you busy
178,738 Re: Forum
170,008 Need opinion
Who's Online Now
1 registered members (brsele), 44 guests, and 7 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#179393 - 07/10/08 04:38 PM Two questions and where to find the answers - NEC  
bwise121  Offline
Member
Joined: Sep 2003
Posts: 114
Sacramento, CA USA
1. Assume a house has a ufer and the water and gas are done in plastic or the flexible gas pipe. Neither are metal, do we still have to bond them?

2. Protecting the main grounding electrode conductor with conduit, etc. pertains to what sizes of conductor?

Thanks,
Byron


Work Gear for Electricians and the Trades

#179394 - 07/10/08 05:53 PM Re: Two questions and where to find the answers - NEC [Re: bwise121]  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,135
Estero,Fl,usa
If the interior piping is plastic how would you bond it?


Greg Fretwell

#179396 - 07/10/08 06:32 PM Re: Two questions and where to find the answers - NEC [Re: gfretwell]  
bwise121  Offline
Member
Joined: Sep 2003
Posts: 114
Sacramento, CA USA
the stubs under sinks are copper. But I really don't see any point in doing so...just asking.

Thanks


#179400 - 07/10/08 07:29 PM Re: Two questions and where to find the answers - [Re: bwise121]  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,135
Estero,Fl,usa
It is not really a code issue but I would still bond a steel sink to the EGC of the counter receptacles via the copper piping. I couldn't cite a code section tho. I have a stainless counter top and sink in my kitchen and it is bonded to the cooktop EGC (no neutral load) and receptacle EGCs.

If you have a disposal it is probably bonding a steel sink.

... but I am a bonding freak. The steel in my driveway is bonded.


Greg Fretwell

#179403 - 07/10/08 09:59 PM Re: Two questions and where to find the answers - NEC [Re: bwise121]  
sparkyinak  Offline
Member
Joined: Jul 2007
Posts: 1,328
Alaska
Originally Posted by bwise121
1. Assume a house has a ufer and the water and gas are done in plastic or the flexible gas pipe. Neither are metal, do we still have to bond them?

Nope, how?

Quote
2. Protecting the main grounding electrode conductor with conduit, etc. pertains to what sizes of conductor?

All of them. 250.64


"Live Awesome!" - Kevin Carosa

#179407 - 07/11/08 08:42 AM Re: Two questions and where to find the answers - NEC [Re: sparkyinak]  
Jim M  Offline
Member
Joined: Aug 2001
Posts: 457
Chestertown, MD, USA
I believe that there are bonding requirements for the CSST? flexible gas lines. These may come from the piping manufacturer, not the NEC.

After looking found this.
http://www.toolbase.org/pdf/techinv/csst_lightningconcerns.pdf

Last edited by Jim M; 07/11/08 08:43 AM. Reason: added pdf link

#179408 - 07/11/08 11:30 AM Re: Two questions and where to find the answers - NEC [Re: Jim M]  
Gregtaylor  Offline
Member
Joined: Mar 2005
Posts: 212
Boise, Idaho, USA
I think Sparky's answer is oversimplified. It's never wrong to protect them with conduit as long as a steel conduit is choked on both ends, but 250.64 (B) certainly says that there are situations where a grounding electrode conductor size 6 or larger may not require conduit as a means to physically protect it. Guys?


#179410 - 07/11/08 06:31 PM Re: Two questions and where to find the answers - NEC [Re: Gregtaylor]  
sparkyinak  Offline
Member
Joined: Jul 2007
Posts: 1,328
Alaska
When not subject to physical damage. A common issue I see in unprotected grounds is exposure to weed whacking and brushing around the ground wire.


"Live Awesome!" - Kevin Carosa


Member Spotlight
akmaster
akmaster
alaska
Posts: 70
Joined: June 2012
Show All Member Profiles 
Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.016s Queries: 15 (0.003s) Memory: 0.7940 MB (Peak: 0.9575 MB) Zlib enabled. Server Time: 2017-11-19 05:03:04 UTC