CSST

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From the feul gas code, CSST shall be bonded to the electrical service grounding electrode system..... I guess it really depends on how your inspector would look at it. Personally, when I see a bonding wire on the nipple by the meter, I pass it.
 
rcarroll said:
From the feul gas code, CSST shall be bonded to the electrical service grounding electrode system..... I guess it really depends on how your inspector would look at it. Personally, when I see a bonding wire on the nipple by the meter, I pass it.
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Technicalities and use of words... what if the building is not supplied by a "service"?

Of course this was coming from gas code and not NEC, gas code may not use the NEC definition of service.
 
I would say no unless that is were the GEC is located and if there is no "service" to the building there is still a GEC.

2009 IRC
G2411.1.1 (310.1.1) CSST. Corrugated stainless steel tubing (CSST) gas piping systems shall be bonded to the electrical service grounding electrode system at the point where the gas service enters the building. The bonding jumper shall be not smaller than 6 AWG copper wire or equivalent.

There is simular wording in the other ICC codes.
 
I agree- the connection must be made at the service or a sub panel (the main panel of that structure) in the case of a separate structure being fed from another building.
 
Dennis Alwon said:
Now what if there is a gas appliance in a separate structure and there is only a MWBC going to the building?
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Where ever the individual line is taped from and run to the separate building would need to have a # 6 CU attached to it and run back to the panel or the closest grounding electrode that is tied to the service or ground electrode conductor that is at least #6 copper.
 
Dennis Alwon said:
I agree- the connection must be made at the service or a sub panel (the main panel of that structure) in the case of a separate structure being fed from another building.
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so.............If there is a service on a pedistal, the csst can be bonded at the subpanel that is fed from the pedistal?
 
Gregg Harris said:
Where ever the individual line is taped from and run to the separate building would need to have a # 6 CU attached to it and run back to the panel or the closest grounding electrode that is tied to the service or ground electrode conductor that is at least #6 copper.
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Gregg Harris said:
Yes, provided the Electrical Grounding Conductor is at least a # 6 Cu.
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Please give us references to your answers, whether NEC, gas code, or even instructions provided with a specific CSST.

The separate building supplied by a branch circuit (where permitted) does not require a grounding electrode conductor, and it is not tapped, it is a branch circuit.
 
kwired said:
Please give us references to your answers, whether NEC, gas code, or even instructions provided with a specific CSST.

The separate building supplied by a branch circuit (where permitted) does not require a grounding electrode conductor, and it is not tapped, it is a branch circuit.
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The seperate building would require for the CSST an individual #6 bonding conductor atached to either a CSST fitting with an approved clamp with a UL 467 listing or at the gas meter where it is taped, and then bonded to the electrical service at the pannel or grounding electrodes or grounding electrode conductor of # 6 or larger.

When looking at the Installation manual for any of the manufacturers of CSST the section for Bonding is 4.10 and the instructions are verbatim as a unified document between them.
 
Gregg Harris said:
Where ever the individual line is taped from and run to the separate building would need to have a # 6 CU attached to it and run back to the panel or the closest grounding electrode that is tied to the service or ground electrode conductor that is at least #6 copper.
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Disagree. I do not see that being required.

310.1.1 CSST. Corrugated stainless steel tubing (CSST) gas piping systems shall be bonded to the electrical service grounding electrode system at the point where the gas service enters the building. The bonding jumper shall be not smaller than 6 AWG copper wire or equivalent.

Since we have no electrode present at this building 90.4 applies.

I doubt if black iron was used or this would be the electrode. If poly was used I would use:

310.1 Pipe and tubing other than CSST. Each above-ground portion of a gas piping system other than corrugated stainless steel tubing (CSST) that is likely to become energized shall be electrically continuous and bonded to an effective ground-fault current path. Gas piping other than CSST shall be considered to be bonded where it is connected to appliances that are connected to the equipment grounding conductor of the circuit supplying that appliance.
 
jxofaltrds said:
Disagree. I do not see that being required.

310.1.1 CSST. Corrugated stainless steel tubing (CSST) gas piping systems shall be bonded to the electrical service grounding electrode system at the point where the gas service enters the building. The bonding jumper shall be not smaller than 6 AWG copper wire or equivalent.

Since we have no electrode present at this building 90.4 applies.

I doubt if black iron was used or this would be the electrode. If poly was used I would use:

310.1 Pipe and tubing other than CSST. Each above-ground portion of a gas piping system other than corrugated stainless steel tubing (CSST) that is likely to become energized shall be electrically continuous and bonded to an effective ground-fault current path. Gas piping other than CSST shall be considered to be bonded where it is connected to appliances that are connected to the equipment grounding conductor of the circuit supplying that appliance.
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What do you disagree with?
 
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