Natural Gas Line Bonding.

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360Youth

360Youth

Senior Member
Location
Newport, NC
Gas guys are roughing in there lines and I am looking at the necessity to bond their line...

MilesGasline-1.jpg


...coming in from the meter. If I am reading correctly 250.104 (B) tells me to do so, but 250.52 (B)(1) threw me a little.

Just for kicks, here is the master shower...
MilesShower1.jpg


MilesShower2.jpg


Roughly 25 gallons per minute with two 3" drain lines for dispensation. :cool:
 
you don't need to bond the natural gas line as long as they are not done in CSST piping. The EGC from the gas furnace, range etc. will bond the pipe.
 
I agree with Dennis.

No special bonding is neccessary for the gas line unless there is CSST piping involved. The EGC of the furnace or other gas utilization equipment can be used for bonding of the gas line in accordance with the last sentence of 250.104(B).

The manufactures instructions for some brands of CSST (yellow gas flex) will require a specific sized bonding jumper to be run to bond their gas piping.

Chris
 
The local Gas Company told me that they started making you ground the yellow flexible gas line after it was discovered that in some instances after lightning they discovered the gas the line had become pefferated with liitle pin holes.
 
buckofdurham said:
The local Gas Company told me that they started making you ground the yellow flexible gas line after it was discovered that in some instances after lightning they discovered the gas the line had become pefferated with liitle pin holes.
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They cant make you do anything, but they sure can hire you to bond it if they like. This is not an NEC requirement, so make sure your getting paid for this work.
 
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buckofdurham said:
The local Gas Company told me that they started making you ground the yellow flexible gas line after it was discovered that in some instances after lightning they discovered the gas the line had become pefferated with liitle pin holes.
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There was a massive lawsuit involving CSST and lightning damage. The CSST manufactures lost and part of the settlement was a change in the bonding requirments for CSST.

Chris
 
raider1 said:
There was a massive lawsuit involving CSST and lightning damage. The CSST manufactures lost and part of the settlement was a change in the bonding requirments for CSST.

Chris
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Can you direct me to the section in the NEC that spells out this change? :confused:
 
stickboy1375 said:
They cant make you do anything, but they sure can hire you to bond it if they like. This is not an NEC requirement, so make sure your getting paid for this work.
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I agree, they might try to make it your problem but IMO it is really the gas fitters problem as they are the ones that are installing the product.
 
electricmanscott said:
Can you direct me to the section in the NEC that spells out this change? :confused:
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I believe Chris is saying that the csst manufacturers, not the NEC, has stated that it must be bonded in their installation instructions-- but you knew that.:D

johnj0906 said:
At least one county here has a formal amendment requireing a #6 bond to CSST.
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All of our counties are requiring the bonding of CSST but they specifically point out that it is not necessarily the EC responsibility.

Also not all manufacturers require #6. Some require #4 and other require you to bond according to 250.66. This is why I refuse to get involved in it. If I had to I would cover my butt and use 250.66
 
electricmanscott said:
Can you direct me to the section in the NEC that spells out this change? :confused:
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I never stated that it was a change to the NEC. The CSST manufactures have, within their instructions, requirements for electrical bonding of their products. Part of the settelment was a change in their bonding requirements to include a larger bonding jumper than is typically installed according to the NEC section 250.104(B).

Chris
 
raider1 said:
I never stated that it was a change to the NEC. The CSST manufactures have, within their instructions, requirements for electrical bonding of their products. Part of the settelment was a change in their bonding requirements to include a larger bonding jumper than is typically installed according to the NEC section 250.104(B).

Chris
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Would lightning be considered a circuit? as in "The equipment grounding conductor for the circuit that is likely to energize the piping shall be permitted to serve as the bonding means." :D
 
acrwc10 said:
Would lightning be considered a circuit? as in "The equipment grounding conductor for the circuit that is likely to energize the piping shall be permitted to serve as the bonding means." :D
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What size overcurrent device is used on your lightning circuit, so we can properly size the EGC?:D

Chris
 
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