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Subject - grounding an existing 2 wire service
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jakeselectric
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A customer is fixing up an old house and wants me to replace all the recetps and switches but wants to use the existing wiring until he can afford to run in a new service. The existing wiring is a 2 wire system and of course doesn't contain a grounding electrode. as far as I can figure the best way to ground the recepts is to run a jumper from the grounding screw connecting it to the neutral on the existing wiring on the recepts. AS long as the grounding wire and the neutral are bonded together at the service entrance this should allow me to get the best possible path to ground. Any other suggestions?
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blackrd
| start at article 250, that is just a start.
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Electricman
| "bootleg grounding" is illegal dont do it. You can only install grounding type recepts on a non egc branch circuit if it is supplied through a gfci recept, I suggest you read 250.130(C) and especially 406.3 (D). You have but 3 choices as to meet for a safe and code compliant resolution.
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lctrc789
| You do not want to do this now you are making the ground a non grounded conductor, the ground is a non current carrying conductor.
I would say either follow the rules for a GFCI or install three wire and do the proper grounding, or tell the customer to wait till he has the proper money and do it right so you are not liable for any things that could happen...
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lucky1122
| All of these folks have given you sound advice to this issue DONT DO IT! By tying equipment ground jumpers and boxes to the neutral terminal you would in effect be causing all boxes , receptacle yokes and anything connected to them to become a current carrying conductor back to the panel. aside from the inherent shock hazzard that exists a loose connection could cause fires. The purpose of an equipment ground is to clear faults to prevent shock hazzards they must not carry current unless there is a fault.lets assume you had a washer connected to this receptacle with a three wire plug connected .The frame of the washer is now a current carrying conductor paralleling the neutral. Listen to these distinguished gents they are telling you right.
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Briank
| I agree with all thee above..Came across a few houses dated back in the early century..like when they started wiring houses.with those electrodes..a hot and Neutral..The woman was poor..her house was a fire hazard..changed panel..meterbase..re-wired her first floor..Top floor..she doesnt use..but its got a few spares up there as well..But what Im getting at..is ..all houses need Grounding..I wouldnt go around it.
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blackrd
| I personally would run like heck from this one.
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