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#210685 - 07/20/13 02:53 PM Bond abandoned piping?
BigB Offline

Registered: 03/31/04
Posts: 725
Loc: Tucson, AZ USA
Is an abandoned metal piping system required to be bonded if it is left in place and intact?

Edited by BigB (07/20/13 02:53 PM)

2014 / 2011 NEC & Related Books and Study Guides
#210690 - 07/21/13 04:52 AM Re: Bond abandoned piping? [Re: BigB]
shortcircuit Offline

Registered: 06/27/04
Posts: 608
Loc: massachusetts
If it is in or attached to the building and likely to become energized then I would say yes bond the piping system.

#210692 - 07/21/13 11:59 AM Re: Bond abandoned piping? [Re: BigB]
HotLine1 Offline


Registered: 04/03/02
Posts: 6792
Loc: Brick, NJ USA
Another subjective item. Key phrase is 'likely to become energized'.

Perhaps the best answer is from your local AHJ.

#210698 - 07/22/13 08:12 PM Re: Bond abandoned piping? [Re: HotLine1]
BigB Offline

Registered: 03/31/04
Posts: 725
Loc: Tucson, AZ USA
My interpretation of "likely to become energized" means if whatever the gas is hooked up to uses electricity then it is "likelt to become energized". Once the piping is abandoned, it is no longer connected to anything that could energize it.

It is a situation that we see when replacing services on older residences that have gone all electric to avoid the expense of re-piping leaking gas lines. Southwest construction methods often make plumbing replacement very hard and expensive (no attic, slab foundations)


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