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#97868 - 04/06/06 03:02 PM Water pipe bonding
tmegger64 Offline
Junior Member

Registered: 03/12/06
Posts: 7
Loc: Naples Fl.
While inspecting unit remodel in a multiple occupancy bldg I checked the bonding for the water piping system in the units panel. Traced the bond to the water heater of the unit. 250.104(A)(2) says in essence that if the system is isolated from all other occupancies by use of nonmetallic water piping then the above bonding is acceptable. The question arises: How do you know if there is nonmetallic isolation? You don't The building is old as the hills and who knows if the metal piping system has any isolated areas. So the real question is: If it is left bonded in the unit and there isn't any nonmeatlic isolation will it make a difference anyway? I hate to see the EC have to run a bond in an old building to the service.

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#97869 - 04/06/06 05:23 PM Re: Water pipe bonding
resqcapt19 Offline
Member

Registered: 11/10/00
Posts: 2209
Loc: IL
Is this a bonding conductor required by 250.104 or a grounding electrode conductor for the service?
Don
_________________________
Don(resqcapt19)

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#97870 - 04/07/06 03:15 AM Re: Water pipe bonding
tmegger64 Offline
Junior Member

Registered: 03/12/06
Posts: 7
Loc: Naples Fl.
It's the bonding conductor per 250.104 for the water piping.

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#97871 - 04/08/06 10:11 AM Re: Water pipe bonding
Larry Fine Offline
Member

Registered: 02/18/05
Posts: 684
Loc: Richmond, VA
The older the building, the less likely there are isolated sections of pipe.
_________________________
Larry Fine
Fine Electric Co.
fineelectricco.com

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