ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Fujifilm Recalls Power Adapter Wall Plugs
by Admin. 01/16/18 07:04 PM
VDE 0100 to introduce AFCIs
by sparky. 01/16/18 06:36 PM
Air Compressor feeder conductor sizing
by Potseal. 01/15/18 09:08 PM
Under carpet cable?
by HotLine1. 01/15/18 09:57 AM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 7 guests, and 8 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Underground Copper Water Pipe as an Electrode #104622
09/11/03 06:16 AM
09/11/03 06:16 AM
Joe Tedesco  Offline OP
Member
Joined: Oct 2000
Posts: 2,749
Boston, Massachusetts USA
[Linked Image]
The water pipe run underground from the street into the alley and into the water meter is the main water supply and the piece above is what supplies the building.

Question: Can someone give a summary of the 2002 NEC rules that address the use of the water pipe as an electrode, and cover any limitations that may be considered here?


Joe Tedesco, NEC Consultant
2017 / 2014 NEC & Related Books and Study Guides
Re: Underground Copper Water Pipe as an Electrode #104623
10/17/03 04:20 PM
10/17/03 04:20 PM
T
Tir  Offline
Junior Member
Joined: Oct 2003
Posts: 6
Garland, Tx.-US
I know this reply is a little dated but here it goes..article 250.52.a.1 states that there must be at least 10' of metal underground pipe in direct contact with the earth...an alternate grounding electrode would have to be selected.


Featured:

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

 

Member Spotlight
electure
electure
Fullerton, CA USA
Posts: 4,263
Joined: December 2000
Show All Member Profiles 
Top Posters(30 Days)
sparky 23
Admin 20
Potseal 13
Popular Topics(Views)
243,516 Are you busy
180,314 Re: Forum
170,811 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.017s Queries: 14 (0.004s) Memory: 0.9413 MB (Peak: 1.0597 MB) Zlib enabled. Server Time: 2018-01-17 07:11:29 UTC