Grounding

[26Blackwatch]

Hi guys

Great site I stumbled across it about a week ago.Seems like some top guys post here.

Okay I am in missouri and my code book is in Pennsylvania.I ran across a problem with 2 prong ungrounded recps.My fix was to rewire or install GFCI breakers in the panel.So today the GC approachs me with the your to high speach why can't we do this.Now he says he has seen "other" electricians do this before.

This is residential homes
He wants to install a ground bus in the crawl space where I can run new ground wires to.Then run a power ground from there to the panel.I have never done this or seen it done.Unfortunatly I left my code book at home so can not check to see if this is even a legal means.Has anyone ever done this or know if it is legal.

Thanks for the help

 

[George Stolz]

Your way is legal, his isn't.

406.3(D)(3) Non?Grounding-Type Receptacles. Where attachment to an equipment grounding conductor does not exist in the receptacle enclosure, the installation shall comply with (D)(3)(a), (D)(3)(b), or (D)(3)(c).
(a) A non?grounding-type receptacle(s) shall be permitted to be replaced with another non?grounding-type receptacle(s).
(b) A non?grounding-type receptacle(s) shall be permitted to be replaced with a ground-fault circuit interrupter type of receptacle(s). These receptacles shall be marked ?No Equipment Ground.? An equipment grounding conductor shall not be connected from the ground-fault circuit interrupter-type receptacle to any outlet supplied from the ground-fault circuit-interrupter receptacle.
(c) A non?grounding-type receptacle(s) shall be permitted to be replaced with a grounding-type receptacle(s) where supplied through a ground-fault circuit interrupter. Grounding-type receptacles supplied through the ground fault circuit interrupter shall be marked ?GFCI Protected? and ?No Equipment Ground.? An equipment grounding conductor shall not be connected between the grounding type receptacles.

Going along his train of thought, the legal options:

250.130(C) Nongrounding Receptacle Replacement or Branch Circuit Extensions. The equipment grounding conductor of a grounding-type receptacle or a branch-circuit extension shall be permitted to be connected to any of the following:
(1) Any accessible point on the grounding electrode system as described in 250.50
(2) Any accessible point on the grounding electrode conductor
(3) The equipment grounding terminal bar within the enclosure where the branch circuit for the receptacle or branch circuit originates
(4) For grounded systems, the grounded service conductor within the service equipment enclosure
(5) For ungrounded systems, the grounding terminal bar within the service equipment enclosure

 

[26Blackwatch]

Thanks Goerge.I did not think it was.Thought if in the 1000 plus homes I have wired I never seen it it was most likely not a option