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Isolated piping #99845
09/19/06 10:01 PM
09/19/06 10:01 PM
G
George Little  Offline OP
Member
Joined: Jan 2004
Posts: 1,489
Michigan USA
With the cost of copper being so high, I see the plumbers using non-metallic piping for the supply lines in new construction. They quite often use short pieces of copper (about 12 to 24") at the fixtures. Should we be concerned about these scattered piping sections some of them are maybe 6 feet long. Do the inspectors as for compliance per 250.104(A)(1)?


George Little
2017 / 2014 NEC & Related Books and Study Guides
Re: Isolated piping #99846
09/19/06 10:25 PM
09/19/06 10:25 PM
S
Steve T  Offline
Member
Joined: Feb 2001
Posts: 306
Oak Park, IL, USA
I wouldn't call short sections of copper a 'metal water piping system', although I could see where somebody would.

Re: Isolated piping #99847
09/19/06 10:33 PM
09/19/06 10:33 PM
G
gfretwell  Offline

Member
Joined: Jul 2004
Posts: 9,301
Estero,Fl,usa
Welcome to our world. I haven't seen metal pipe here in years but the faucets are still some kind of metal. I feel your pain.
I don't think there is anything definate but bear in mind the "may become energized" language and look at the installed equipment. I like the "EGC of the equipment likely to energize" concept. I would want them to grab the EGC of an insta'hot or things like that to bond nearby plumbing. I am not sure you do anything with a corian sink, metal faucet and no nearby equipment.

[This message has been edited by gfretwell (edited 09-19-2006).]


Greg Fretwell
Re: Isolated piping #99848
09/22/06 03:58 AM
09/22/06 03:58 AM
E
e57  Offline
Member
Joined: May 2003
Posts: 2,876
S.F.,CA USA
In a situation like that I would be more worriied for the plumber. [Linked Image] He goes to solder a joint on that and melts a fitting in the wall......


Mark Heller
"Well - I oughta....." -Jackie Gleason
Re: Isolated piping #99849
09/22/06 10:02 AM
09/22/06 10:02 AM
J
JBD  Offline
Member
Joined: Jul 2001
Posts: 599
WI, USA
In 250.104(B), the NEC now uses the specific phrase "likely" to become energized. In this context a dictionary equivalent(synonym) is "probably" become energized.

This was a change in the 2005 NEC from the loosely defined phrase "may" become energized.

Re: Isolated piping #99850
09/22/06 02:11 PM
09/22/06 02:11 PM
E
earlydean  Offline
Member
Joined: Dec 2003
Posts: 751
Griswold, CT, USA
NO. Isolated sections of pipe are not systems.


Earl

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