the gec: rigid pipe is part of the enclosure if its got some bonding bushings on it?

[wyreman]

https://photos.app.goo.gl/kX6UEdeNE9bjBBYZ9
I have to help an old customer with a compliance letter on one of their properties.
The inspector only called out for a bonding jumper from the interior gas piping and the grounding electrode
which can be a simple #6 or #4 if you don't want to run pipe.

My main question is
what about the former practice of using the rigid lateral for the GEC?
He didn't call it out, but someone else might
and I am supposed to give a firm quote.

I still have to check for two rods, the cold water, the water heater [hot] even tho this inspector didn't call that out if I want to give a firm quote

Is there any interpretation that would allow using the rigid lateral as a GEC now?

 

[Dennis Alwon]

I don't see any reason why you couldn't use the rigid however, the inspector could ask you to prove that the rigid pipe extends 10'

 

[wyreman]

I think there was a periscope going up to a main disco
this is a lateral , around 4' up , going down the tradesman alley to the meter banks


it gets its GEC status from being, hopefully, bonding with more than a locknut at the disco entry
anyway, can you just bolt a weaver clamp to it? Is that a listed method??

see the working clearances back in the day

 

[Dennis Alwon]

I think of a lateral as being underground however if it is above ground then I would say it is not a grounding electrode conductor whether it is bonded or not.

 

[wyreman]

service lateral yes, I agree that was not precise on my part.

this rigid is more of a nipple between the meter and the meter banks
"A problem clearly stated is a problem half solved."

 

[wyreman]

Since were on the subject of compliance,
I never understood how you could prove the gas wasn't being used as a GEC,
just the size of the jumper?

Verify that the underground gas pipe is not being used as a grounding electrode. (CEC 250.52(B)(1))

In addition to the primary grounding electrode systems, verify that a required supplemental electrode is installed. In this case, a metal water pipe must be connected with a minimum 4 AWG copper wire and connected at the exterior hose bib within 5’ of where the water service enters the building. (Refer to CEC Table 250.66 for proper sizing of the ground electrode conductor services.) (CEC 250.52)

 

[augie47]

250.104(B)
(B) Other Metal Piping. If installed in or attached to a building or structure, a metal piping system(s), including gas piping,
that is likely to become energized shall be bonded to any of the following:
(1) Equipment grounding conductor for the circuit that is
likely to energize the piping system
(2) Service equipment enclosure
(3) Grounded conductor at the service
(4) Grounding electrode conductor, if of sufficient size
(5) One or more grounding electrodes used, if the grounding electrode conductor or bonding jumper to the
grounding electrode is of sufficient size The bonding conductor(s) or jumper(s) shall

 

[wyreman]

so how do you prove the gas pipe is not part of the GEC system but is rather bonded to?
by the size of the jumper?
or lack of it

what about using a loom clamp on the nipple to land bonding or GEC jumpers?