To Bond Or Not To Bond

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garfo55

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I know this topic has been beat to death but I cant find a reference to my situation. This was installed in the 1970s
I have 4 4x4 posts fed from a nearby building. Each post has 2 20 amp circuit breakers and 2 GFI receptacles. The feeder from the building goes to the first post then loops to each of the other posts. There was no equipment ground installed with the feeders. There are no ground rods or any type of ground system. On the back of the first 2 posts is a galvanized water pipe that goes to the same building as the feeders. My question is, can I use this water pipe as the grounding electrode, and if so, does the grounding electrode conductor bond to the grounded (neutral) bar? Also if I run a GEC from the 2nd post to the 3rd and 4th posts, do these need to be bonded to the neutral bar.
 
...more info is needed, but you only bond at one point at supply .

Are you replacing all the wiring or just trying to get an equipment ground conductor installed on outlets?

Why not just install gfi protection at each 4X4 outlet 406.3D(3)(b)?
 
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Does not appear to me that this was ever code legal.

If this is a single multiwire circuit I don't think it requires a grounding electrode at all.

If it was run in metallic conduit or EMT that can be used as the grounding conductor.
 
petersonra said:
Does not appear to me that this was ever code legal.

If this is a single multiwire circuit I don't think it requires a grounding electrode at all.

If it was run in metallic conduit or EMT that can be used as the grounding conductor.
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keep in mind he is going back 50+ years when installed
 
jusme123 said:
keep in mind he is going back 50+ years when installed
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I think even back in the Dark Ages of the 1970s you were required to either run an equipment grounding conductor or bond to a grounding electrode at a separate structure. Unless I am mistaken about what he is saying it does not appear to me that this system does either.
 
I am replacing the existing RV Park type panels, with new panels that have GFI receptacles installed. I am not replacing any wiring. Is this code compliant as long as I use the stickers (no equipment ground). Wires are direct burial. No conduit
 
garfo55 said:
I am replacing the existing RV Park type panels, with new panels that have GFI receptacles installed. I am not replacing any wiring. Is this code compliant as long as I use the stickers (no equipment ground). Wires are direct burial. No conduit
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In my opinion you must provide some type of grounding means other then the earth. The 'no equipment ground sticker' requirement only applies to replacement receptacles not panels.


You may be able to use the grounded conductor (neutral) as the grounding means.

Please take a look at all of 250.32 and its exceptions.
 
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