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PappyOA
electrical to plumbing ground

What is the best way to tie in a ground from electrical to copper plumbing? nearest pipe to service panel is 30 ft. Also what size wire should I use or is it alright to use grounds at outlets to add a wire to plumbing?

MLBSF
Re: electrical to plumbing ground

i'm not an electrician but your service is already grounded or you wouldn't have any service at all. bt to answer your question and i think i'm correct, you have to run an 8 guage wire from the panel the 30' to where your water meter is and attach it to both sides of the water meter.

PappyOA
Re: electrical to plumbing ground

House svc is grounded thru rod if contractor didn't cut it off short, but getting bimetal corrosion on ice maker and hot water heater.

Edgeking
Re: electrical to plumbing ground

the metal water piping systems installed in or attached to a building or structure shall be bonded to the service equipment enclosure, the grounded conductor at the service, the grounding electrode conductor where of sufficient size, or to the one or more grounding electrodes used. <- 250.104(a)(1) basically you want to bond your water pipes at the closest point to one of these, your panel or your ground rod. to get a good ground if there is any fittings you should use a bonding jumper around fittings on the water pipe as far as size you are not required to use a 6AWG copper wire. and for a little trick if you are going to get this inspected. use a little sand paper to get the pipe shiny where you bond your wire to. inspectors usually like this. good luck buddy and be safe

morsesdjserv
Re: electrical to plumbing ground

i used 4 awg to my COLD water line by my water meter.

sparky1
Re: electrical to plumbing ground

I believe if you use a 4 awg bare, you do not have to protect the wire (i dont have my code book at home to verify its 4 nota 6) by not protecting it you can simply staple it up or run it though holes, no conduit needed. You will want to run the wire close to the entrance of the water line, and then jumper the meter to bond both sides.

Re: electrical to plumbing ground

You must BOND from the main electrical panel neutral bar or your ground rod(s) to a cold water pipe, if it's metal, with at least #6 copper wire.

There also needs to be a GROUND wire (#6 copper (min.) from your main power panel neutral bar (the one with all the white wires) to the ground rod(s).

Also, you must jumper across your water heater from the cold pipe to the hot side, if the pipes are metal, using listed electrical clamps and the same #6 copper wire. If your water meter is in your house you must jumper across it also, same way.

If you need to ground an outlet that doesn't already have a ground it's OK to run a #12 to a cold water pipe that's already grounded or bonded, as mentioned above.

Good Luck from Columbiana, Alabama
Maurice Turgeon, thesemi-retiredelectrician.com

Re: electrical to plumbing ground
MLBSF wrote:

i'm not an electrician but your service is already grounded or you wouldn't have any service at all. bt to answer your question and i think i'm correct, you have to run an 8 guage wire from the panel the 30' to where your water meter is and attach it to both sides of the water meter.

WTH?

PappyOA wrote:

House svc is grounded thru rod if contractor didn't cut it off short, but getting bimetal corrosion on ice maker and hot water heater.

HUH?

Edgeking wrote:

the metal water piping systems installed in or attached to a building or structure shall be bonded to the service equipment enclosure, the grounded conductor at the service, the grounding electrode conductor where of sufficient size, or to the one or more grounding electrodes used. <- 250.104(a)(1) basically you want to bond your water pipes at the closest point to one of these, your panel or your ground rod. to get a good ground if there is any fittings you should use a bonding jumper around fittings on the water pipe as far as size you are not required to use a 6AWG copper wire. and for a little trick if you are going to get this inspected. use a little sand paper to get the pipe shiny where you bond your wire to. inspectors usually like this. good luck buddy and be safe

Your grounding electodes would be ALL OF THE FOLLOWING PRESENT
Metal water pipe system WITHIN 5 FEET OF WHERE IT ENTERS THE HOME (metal underground water pipe in direct contact with the earth for 10 feet)
metal frame of building or structure
concrete encased electrode
ground ring
rod/pipe electrode
other listed electrodes
plate electrodes
other local metal underground systems including well casings

All of these should be bonded together to form the Grounding electrode system.
The water pipe system should be continuously bonded together by means of jumper at water meter, water heater, and / or water filter to be made electrically continuous

The Grounding electrode system should be connected to the service at any metal non current carrying part of the equipment forming the service. The MGS neutral should be bonded to the GEC and the EGC at the service disconnect.

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