ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals

ECN Shout Chat
Top Posters(30 Days)
Admin 19
Recent Posts
Anyone hiring inspectors?
by HotLine1. 03/27/17 08:03 AM
Old decora style outlets
by Admin. 03/25/17 11:40 AM
ESA Arc flash course
by TheShockDoctors. 03/24/17 10:15 AM
fuse rejectors
by HotLine1. 03/24/17 07:53 AM
Another Forum Update
by Admin. 03/22/17 03:04 PM
New in the Gallery:
SE cable question
Popular Topics(Views)
231,564 Are you busy
166,335 Re: Forum
160,683 Need opinion
Who's Online Now
1 registered members (dougwells), 60 guests, and 13 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#113731 - 09/21/02 10:36 PM Topic: >> Public Water / Old Pump issues  
Admin  Offline

Administrator
Member
Joined: Oct 2000
Posts: 3,437
NY, USA
Picture a situation where 'City Water' has been brought into a House (copper line) and the old Well piping disconnected, but the Ground Wire has not been moved from it's original location. What are the issues, what should be done and why?

[Linked Image]


Tools for Electricians:

#113732 - 09/21/02 11:38 PM Re: Topic: >> Public Water / Old Pump issues  
Bjarney  Offline
Moderator
Joined: Apr 2002
Posts: 2,527
West-Southern Inner-Northeast ...
One suggestion — Although the wellhead seal looks decidedly nonmetallic, there may be one good reason for connections to both the casing and new municipally-connected feed—a metal well casing often makes an outstanding grounding electrode. The old 6-inch casing at my rural house measured <2&#8486; with a three-point test, and that is often considered “utility-substation grade.” {The equally-old ‘driven’ ¾-inch-pipe electrode was 65&#937;.}


#113733 - 09/21/02 11:52 PM Re: Topic: >> Public Water / Old Pump issues  
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,875
NY, USA
Remember now that the interior metal water piping is no longer connected to this well piping. What problems/issues does that present?

Bill


#113734 - 09/23/02 08:18 AM Re: Topic: >> Public Water / Old Pump issues  
jdevlin  Offline
Member
Joined: Aug 2002
Posts: 402
welland ontario canada
Assuming there is no interconection between the old well head and the new city water a new bond needs to be added to the new water system.


#113735 - 10/05/02 05:43 PM Re: Topic: >> Public Water / Old Pump issues  
tdhorne  Offline
Member
Joined: Mar 2001
Posts: 345
Maryland, USA
I would add a new grounding electrode conductor (GEC)to the new water utility entry piping. I would leave the present GEC in place. This would bond both systems to the main bonding conductor.
--
Tom


Tom Horne

"This alternating current stuff is just a fad. It is much too dangerous for general use" Thomas Alva Edison

#113736 - 10/05/02 05:58 PM Re: Topic: >> Public Water / Old Pump issues  
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,875
NY, USA
Thanks,

What hazards, if any, exist with the way it is now? What would you tell the owner of this house?

Bill


#113737 - 10/05/02 09:30 PM Re: Topic: >> Public Water / Old Pump issues  
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,303
that the interior plumbing may be able to be energized due to a rusty bond...


#113738 - 10/07/02 06:40 AM Re: Topic: >> Public Water / Old Pump issues  
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,303
not as prevelant in this particular pix, the white powdery buidlup we sometimes see , similar to battery connections is explained by Mark Ode in an article Here



Member Spotlight
dougwells
dougwells
kamloops BC Canada
Posts: 1,137
Joined: May 2003
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.019s Queries: 14 (0.003s) Memory: 0.7908 MB (Peak: 0.9514 MB) Zlib enabled. Server Time: 2017-03-27 14:37:49 UTC