Bonding soft copper gas line to gas range
#1
03-26-20, 10:13 AM
Bonding soft copper gas line to gas range
A recent home inspection has noted that my gas line supplying my gas cooktop is not bonded. This is the only gas appliance in the house. It is currently fed off of a 20# tank under my deck with the soft copper line going through the rim joist on the house, between floor joists, and up to the appliance. I'm curious on how a gas contractor or electrician would bond this line. I've read some things about bonding taking place at the appliance connection to the electrical circuit feeding the appliance, but I don't think that's the case here. Can a bonding lug be attached to the soft copper pipe without hurting the integrity of the pipe? If so, can a copper conductor wire be ran from that lug and wire-nutted together with another circuit's ground wire/conductor, assuming they're sized properly?
Thanks in advance for any insight. Hopefully I got this in the right forum location.
Thanks in advance for any insight. Hopefully I got this in the right forum location.
#2
03-26-20, 12:32 PM
Group Moderator
Thread moved to plumbing and piping.
I've never heard of bonding a random gas line supplied by a small propane tank.
CSST (flexible stainless steel) connected to a gas service must be bonded.
Bonding a gas line would require a clamp on the copper pipe and at least #6 THHN to be connected to the main service grounding conductor.
Your scenario is a little strange.
Is this a house ?
A range is not usually run off a 20# tank.
I've never heard of bonding a random gas line supplied by a small propane tank.
CSST (flexible stainless steel) connected to a gas service must be bonded.
Bonding a gas line would require a clamp on the copper pipe and at least #6 THHN to be connected to the main service grounding conductor.
Your scenario is a little strange.
Is this a house ?
A range is not usually run off a 20# tank.
#3
03-26-20, 12:52 PM
PJmax - This is a house. When I bought the place I thought the 20# tank was strange. Surprisingly it holds up well, and I only change it out about twice a year.
Do you think it's adequately bonded by the range appliance itself, with the electric serving the cook top being grounded to the chassis? I haven't laid eyes on the exact ground point yet, but I'm sure it was wired that way at the factory. Here's where I'm getting that idea:
https://mlcinspections.com/IRC%20CSST.pdf (last line of section G2411.1 (310.1)).
Do you think it's adequately bonded by the range appliance itself, with the electric serving the cook top being grounded to the chassis? I haven't laid eyes on the exact ground point yet, but I'm sure it was wired that way at the factory. Here's where I'm getting that idea:
https://mlcinspections.com/IRC%20CSST.pdf (last line of section G2411.1 (310.1)).
#4
03-26-20, 06:06 PM
I agree, I've never seen a propane line bonded. Not that it can't be... but it's not common around here at least.
I'd assume it's locale specific. Some areas require natural gas piping to be specifically bonded while others assume it will be bonded through the appliance(s).
Personally, I agree with Pete. I don't see any reason it needs to be bonded unless it's CSST or it's specifically required in your locale.
I'd assume it's locale specific. Some areas require natural gas piping to be specifically bonded while others assume it will be bonded through the appliance(s).
Personally, I agree with Pete. I don't see any reason it needs to be bonded unless it's CSST or it's specifically required in your locale.
