Req. for bonding Gas pipe

Status
Not open for further replies.
JohnJ0906 said:
This will happen anyway because of the connection to the EGC.
Click to expand...

I think your missing my point. My inspectors are making me bond gas pipes that are not likely to become energized. There is no EGC. They want us to take a 6 AWG back to the main service disconnect, or where ever you terminated the grounding electrode conductors. I think this is a bad idea. If the power company loses a neutral then the gas pipe could become energized. If the gas pipe is in direct contact to earth, then IMO that 6 AWG is a GEC and the gas pipe is the GE. This would then violate 250.52 B.
 
you are trading off "what-if's" . The line can become energized and pose a potential shock hazard if not bonded.
Apparently, in the eyes of the CMPs, that possibility is more likely than the "loss of neutral scenerio" thus 250.104(B)
As far as your inspector..their job is to enforce Code and 250.104 requires bonding of the pipe. Your point is not without argument, but it does not negate a Code requirement.

If you can convince the CMP that doing so is a bad idea, they can change the Code.
Until then the inspector has to enforce it as written.
 
Last edited:
bonding of gas piping

bonding of gas piping

augie47 I agree with you, but some building officals are requiring bonding of trex gas piping thru building codes not the nec. it seems there have been problems in ma. and other states.
 
joe205 said:
augie47 I agree with you, but some building officals are requiring bonding of trex gas piping thru building codes not the nec. it seems there have been problems in ma. and other states.
Click to expand...

It is not thru the building code that bonding was required for trac piping but thru the manufacturers installation instructions. The building inspectors were the ones to cite the violation.
 
There is a proposed TIA that would require the #6 bonding conductor for CSST gas piping. If accepted this will become part of the 2008 code. The TIA document also contains the preprint (draft) copy of the 2009 Fuel Gas Code, NFPA 54.
 
Last edited:
nunu161 said:
for example the job im on as a 4 inch gas main feeding about 20 radiant tube heaters, 4 water heaters, and 4 furnaces. i just dont think a #12 would be suitable, so i put in a #4. I'm not saying it was a code im just saying i.m.o
Click to expand...

no no no read the Code carefully... the grounding conductor that serves the appliance may serve as the bonding means.
 
nunu161 said:
for example the job im on as a 4 inch gas main feeding about 20 radiant tube heaters, 4 water heaters, and 4 furnaces. i just dont think a #12 would be suitable, so i put in a #4. I'm not saying it was a code im just saying i.m.o
Click to expand...

how many of those would have a short to ground, or gas line, at any one given time do you think ?
 
celtic said:
Thanks Jesse.

Maybe you could add that tidbit to your profile...not every State is under the same code cycle and amendments are all over the place.
Click to expand...

yeah well usually I live about 5 miles from Quincy,MASS so yeah we adopt the code immediately.But I still ask questions on this forum because I have alot to learn and there are a bunch of guys here that have a good bit of understanding of how to interpret the code.
 
Jesse7623 said:
yeah well usually I live about 5 miles from Quincy,MASS so yeah we adopt the code immediately..
Click to expand...

Do they adopt the code based on how close you are to the NFPA? :grin:

Do you get just as much crapolla in the mail from them? That is one of the key reasns I will NEVER EVER join that organization. :cool:
 
Do you get just as much crapolla in the mail from them? That is one of the key reasns I will NEVER EVER join that organization. :cool:[/QUOTE]

well I am not part of that organization either because I never saw the point...But thanks for the warning about the mail overload!:D
 
Status
Not open for further replies.
Top