Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 12-21-2011, 05:24 PM   #1
I can fix that!
 
Join Date: Dec 2011
Location: Portland, OR
Posts: 33
Share |
Default

Grounding Panel at Old Pipe


I'm installing a new PEX water main and was considering leaving my old galvanized main stubbed into the basement and sticking 10-15' out into the yard so I can continue to use it as a ground. Does this make sense? I do not know yet if I have a second ground yet (new to me house and have not seen a grounding rod yet).

kuhlman is offline   Reply With Quote
Old 12-21-2011, 06:13 PM   #2
Mad Scientist
 
Join Date: Dec 2009
Location: Minnesota
Posts: 752
Default

Grounding Panel at Old Pipe


You might as well just drive an 8' ground rod instead, I dunno if the water pipe would still count as a grounding electrode once it was no longer a water pipe. And if you don't already have a ground rod, drive two 8' ground rods.

McSteve is offline   Reply With Quote
Old 12-21-2011, 06:14 PM   #3
Retired from the grind
 
gregzoll's Avatar
 
Join Date: Dec 2006
Location: Midwest - Central Illinois
Posts: 13,733
Default

Grounding Panel at Old Pipe


When you called your permit office, what did they state about it being okay? The only problem that I see, is you are seeing it as a ground, but in reality, it is not. It no longer bonds the rest of the water system, so in theory it is nothing more than a ground rod.

Suggest you review your local codes regarding that you are now using PEX vs. Copper, as to how to bond the panel internally, along with ground rod outside.
__________________
Ren: Now listen, Cadet. I've got a job for you. See this button? Ren: Don't touch it! It's the History Eraser button, you fool! Stimpy: So what'll happen? Ren: That's just it. We don't know. Maybe something bad, maybe something good. I guess we'll never know, 'cause you're going to guard it. You won't touch it, will you?
gregzoll is offline   Reply With Quote
Old 12-21-2011, 06:16 PM   #4
Mad Scientist
 
Join Date: Dec 2009
Location: Minnesota
Posts: 752
Default

Grounding Panel at Old Pipe


Ah, yeah, I forgot the water pipe bond. If your internal water pipes are still metal, you still need a bonding wire between your main panel and water pipes.

Gregzoll's answer is the best though, your local inspection office can tell you exactly what they like to see in your area.
McSteve is offline   Reply With Quote
Old 12-21-2011, 06:46 PM   #5
I can fix that!
 
Join Date: Dec 2011
Location: Portland, OR
Posts: 33
Default

Grounding Panel at Old Pipe


Thanks for the responses! I will be changing all the interior plumbing to PEX as well. My thought was that the old galvanized pipe could be used as one of the grounding rods. But yes, I will talk to my local inspector before doing anything.
kuhlman is offline   Reply With Quote
Old 12-22-2011, 07:21 AM   #6
Member
 
Join Date: Nov 2007
Location: Nashua, NH, USA
Posts: 6,838
Default

Grounding Panel at Old Pipe


The pipe does not have to carry water to be a grounding electrode; what does count is that at least 10 feet of it are buried and it is not a gas pipe.

If, due to plastic pipe, the rest of the plumbing system is not bonded to ground, then you need to add a #6 jumper to the original metal pipe exiting the house or to the fat ground wire (grounding electrode conductor) from there to the panel.

In some cities ground rods are needed even if you have a water pipe as a grounding electrode.

__________________
Stop wasting time re-adjusting the pattern. Have several lawn sprinklers, one for each pattern.
AllanJ is offline   Reply With Quote
Reply


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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
replacing cast iron pipe davemarz Plumbing 1 05-20-2011 09:16 PM
Old House Rewire finnimus Electrical 15 05-13-2011 10:39 PM
Wiring a sub panel to another sub panel Uncle Wayne Electrical 25 02-08-2011 09:50 AM
Replacing 2 Sub Panels with 1 Larger Panel GuitarJack Electrical 7 08-25-2009 08:43 PM
Anyone want to take a shot at why #6 to attach antenna ground to breaker? Piedmont Electrical 44 01-08-2008 04:11 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.