pismo
Banned
- Location
- Pismo Beach
Lol. Perhaps Dr. Giggles.discostu said:
Interior gas pipe bonding
- Thread starter pismo
- Start date
- Status
jwelectric
Senior Member
- Location
- North Carolina
Well here is what the International Gas Code has to say about the gas lines. Notice the reference to the Electrical Code in 309.2.
If your jurisdiction has adopted the NEC instead of the ICC then the NEC would apply.
SECTION 309 (IFGC)
ELECTRICAL
309.1 Grounding. Gas piping shall not be used as a grounding electrode.
309.2 Connections. Electrical connections between equipment and the building wiring, including the grounding of the equipment, shall conform to the ICC Electrical Code.
SECTION 310 (IFGS)
ELECTRICAL BONDING
310.1 Gas pipe bonding. Each above-ground portion of a gas piping sys tem that is likely to be come energized shall be electrically continuous and bonded to an effective ground-fault current path. Gas piping shall be considered to be bonded where it is connected to gas utilization equipment that is connected to the equipment grounding conductor of the circuit supplying that equipment.
Edit to add
You Go Bob (this means that I agree with Bob)
If your jurisdiction has adopted the NEC instead of the ICC then the NEC would apply.
SECTION 309 (IFGC)
ELECTRICAL
309.1 Grounding. Gas piping shall not be used as a grounding electrode.
309.2 Connections. Electrical connections between equipment and the building wiring, including the grounding of the equipment, shall conform to the ICC Electrical Code.
SECTION 310 (IFGS)
ELECTRICAL BONDING
310.1 Gas pipe bonding. Each above-ground portion of a gas piping sys tem that is likely to be come energized shall be electrically continuous and bonded to an effective ground-fault current path. Gas piping shall be considered to be bonded where it is connected to gas utilization equipment that is connected to the equipment grounding conductor of the circuit supplying that equipment.
Edit to add
You Go Bob (this means that I agree with Bob)
pismo
Banned
- Location
- Pismo Beach
We use the 2002 NEC. I guess it's already bonded then. I'll have to look at the gas connection to the appliance.jwelectric said:
- Location
- Massachusetts
pismo said:
No.
and some filler
- Location
- Massachusetts
pismo said:
Why?
Are you the Maytag man?
pismo
Banned
- Location
- Pismo Beach
No. But I did stay at a Holiday Inn Express last night.iwire said:
- Location
- Massachusetts
jwelectric said:
Thanks for the code reference Mike.
- Location
- Massachusetts
pismo said:
LOL
Touch?
radiopet
Senior Member
- Location
- Spotsylvania, VA
Nope.....Because you can't ensure the struts and clamps are electrically continuous to complete the bond.pismo said:
I concur with Bobbo....
electricguy61
Senior Member
Most cities in the Northern California Bay Area require that a bonding jumper be installed at the water heater between cold water, hot water and the gas connection.
Though the NEC doesn't appear to require it, these cities have made it part of their requirements. It only takes 5 minutes, and @ $10 in materials.
Though the NEC doesn't appear to require it, these cities have made it part of their requirements. It only takes 5 minutes, and @ $10 in materials.
radiopet
Senior Member
- Location
- Spotsylvania, VA
Andy...I think Bob was refering to like the example gas cook top for example that will have a ignitor on it that has a continuous EGC back....it will be built into the system and all that is needed for that setup.
The NEC states very clear all piping likely to become energized needs to be bonded.....so if the water piping is metal and the arguement is can it be come entergized....I say it can.....and should be bonded.....
Now....to tie the cold and hot together is where many stop.....as many can argue that along the line these connection will come together and bond like at the fixtures and so on...but alas..in a plastic seals and fixture age...not always the case.
The NEC states very clear all piping likely to become energized needs to be bonded.....so if the water piping is metal and the arguement is can it be come entergized....I say it can.....and should be bonded.....
Now....to tie the cold and hot together is where many stop.....as many can argue that along the line these connection will come together and bond like at the fixtures and so on...but alas..in a plastic seals and fixture age...not always the case.
Bob Anchorite
Member
NEC explanation
NEC explanation
On page 224 of the yellow NEC 2005 handbook - right hand lower paragraph is the following:
"Unlike the metal piping systems covered in 250.104(A), this requirement 250.104B applies only to metal piping systems that are likely to become energized. What this means is that where metal piping systems and electrical circuits interface through mechanical and electrical connections within equipment, a failure of electrical insulation can result in the connected piping system(s) becoming energized. Gas appliances are a common example of metal gas piping and electrical circuits being connected to a common piece of equipment, and in this case the 250.104(B) requirements apply. The required bonding of these other piping systems can occur at the same locations specified in 250.104(A), or an additional provision within this paragraph permits the equipment grounding conductor of the circuit that is likely to energize the piping as the means for bonding the piping. Typically, the use of an additional bonding jumper is not necessary to comply with this requirement because the equipment grounding connection to the non-current-carrying metal parts of the appliance also provides a bonding connection to the metal piping attached to the appliance. This is a bonding requirement, and the other piping is not being used as an electrode. Therefore, this requirement does not conflict with 250.52(B)(1), which prohibits the use of metal underground gas piping as a grounding electrode for electrical services or other sources of supply."
NEC explanation
On page 224 of the yellow NEC 2005 handbook - right hand lower paragraph is the following:
"Unlike the metal piping systems covered in 250.104(A), this requirement 250.104B applies only to metal piping systems that are likely to become energized. What this means is that where metal piping systems and electrical circuits interface through mechanical and electrical connections within equipment, a failure of electrical insulation can result in the connected piping system(s) becoming energized. Gas appliances are a common example of metal gas piping and electrical circuits being connected to a common piece of equipment, and in this case the 250.104(B) requirements apply. The required bonding of these other piping systems can occur at the same locations specified in 250.104(A), or an additional provision within this paragraph permits the equipment grounding conductor of the circuit that is likely to energize the piping as the means for bonding the piping. Typically, the use of an additional bonding jumper is not necessary to comply with this requirement because the equipment grounding connection to the non-current-carrying metal parts of the appliance also provides a bonding connection to the metal piping attached to the appliance. This is a bonding requirement, and the other piping is not being used as an electrode. Therefore, this requirement does not conflict with 250.52(B)(1), which prohibits the use of metal underground gas piping as a grounding electrode for electrical services or other sources of supply."
electricguy61
Senior Member
I followed what Bob was saying. I was just stating that most AHJ's in my area require the gas piping be bonded at the water heater. It seems a quick and cheap way to ensure the gas piping is in fact grounded.
radiopet
Senior Member
- Location
- Spotsylvania, VA
ahh..gotcha my friend.......
- Status