|
Fri, Apr 8, 11 at 9:10
| Does the copper water piping in the house have to be bonded if the water service entering the house is PVC? It changes to copper after a few inches above ground on my ground floor level.
If it needs to be bonded, I am wondering: Do I need to bond the copper service pipe back to the panel or join it to a grounding wire from the panel out to the ground rod electrode? |
Follow-Up Postings:
|
| A second question I have is, if the water pipes do need to be bonded or grounded, can I use green color insulated THHN wire instead of bare copper and what AWG do I need regardless? I Have a 200 amp service.. |
|
- Posted by ronnatalie (My Page) on Fri, Apr 8, 11 at 11:50
| Metal water piping needs to be bonded. Other metal piping likely to become energized needs to be bonded. It matters NOT even if it never leaves the building. The bonding guards against the piping becoming energized. A metal underground water service pipe may be part of the grounding electrode system but that is a distinct requirement from the bonding one. The bonding conductor can be insulated and is sized based not so much on the service size but the size of the service conductors. A 200A service fed by 2/O copper service conductors would require #4 copper bonding. |
Please Note: Only registered members are able to post messages to this forum. If you are a member, please log in. If you aren't yet a member, join now!
Return to the Electrical Wiring Forum
Instructions
- You must be a registered member and logged in to post messages on our forums.
- Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review the contents and make changes.
- After posting your message, you may need to refresh the forum page in order to see it.
- It is illegal to post copyrighted material without the owner's consent.
- HTML codes are allowed in the message field only.
- No advertising is allowed in any of the forums.
- If you would like to practice posting or uploading photos, please visit our Test forum.
- If you need assistance, please Contact Us and we will be happy to help.