arkiesparky
Member
Can anyone tell me what the separation is required between gas and electric lines?
Gas and Electric Separation
- Thread starter arkiesparky
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ryan_618
Senior Member
- Location
- Salt Lake City, Utah
Re: Gas and Electric Separation
could you be a bit more specific? Are you talking about equipment? Underground? Overhead?
could you be a bit more specific? Are you talking about equipment? Underground? Overhead?
arkiesparky
Member
Re: Gas and Electric Separation
Sorry Ryan.....I've had a question posed to me about separation between a gas line and electric line in the same trench.
Sorry Ryan.....I've had a question posed to me about separation between a gas line and electric line in the same trench.
ryan_618
Senior Member
- Location
- Salt Lake City, Utah
Re: Gas and Electric Separation
No requirement.
No requirement.
- Location
- Lockport, IL
- Occupation
- Retired Electrical Engineer
Re: Gas and Electric Separation
I have seen drawings, issued by electric utility companies, showing a minimum separation between their lines and any fluid system piping. It's not an NEC requirement, but there may be rules enforced by the local utilities.
I have seen drawings, issued by electric utility companies, showing a minimum separation between their lines and any fluid system piping. It's not an NEC requirement, but there may be rules enforced by the local utilities.
charlie
Senior Member
- Location
- Indianapolis
Re: Gas and Electric Separation
I don't have a copy of the NESC with me but I believe the NESC now requires a foot of separation.
I don't have a copy of the NESC with me but I believe the NESC now requires a foot of separation.
arkiesparky
Member
Re: Gas and Electric Separation
Thanks to all. I have heard anywhere from 12" to 18", but couldn't find it anywhere in the NEC. I don't have a copy of the NESC, but will try to track one down.
Thanks to all. I have heard anywhere from 12" to 18", but couldn't find it anywhere in the NEC. I don't have a copy of the NESC, but will try to track one down.
- Location
- Lockport, IL
- Occupation
- Retired Electrical Engineer
Re: Gas and Electric Separation
You might try the local library. Give them a call and ask for the Reference Desk.
rcwilson
Senior Member
- Location
- Redmond, WA
Re: Gas and Electric Separation
NESC 2001 Rule 354 says "Radial separation of supply and communications cables or conductors from steam lines, gas, and other fuel lines shall be not less than 300 mm (12 in)."
It also has common sense statements that the separation be adequate for maintenance and repair acces of all facilites.
My home contractor put my water line, gas line, power service, telephone and CATV all in the same 250' ditch with the waterline at the bottom, 8 feet deep and 12" vertical separations for the rest. His bad glue job on the 2" water fitting burst 10 years later. In the repair, my friend running the backhoe ignored my location warning tapes and ripped the gas line and nicked the service cables. Fortunately no real damage just $1000 repair charge from the gas utility.
A bit more horizontal separation would have been much better.
NESC 2001 Rule 354 says "Radial separation of supply and communications cables or conductors from steam lines, gas, and other fuel lines shall be not less than 300 mm (12 in)."
It also has common sense statements that the separation be adequate for maintenance and repair acces of all facilites.
My home contractor put my water line, gas line, power service, telephone and CATV all in the same 250' ditch with the waterline at the bottom, 8 feet deep and 12" vertical separations for the rest. His bad glue job on the 2" water fitting burst 10 years later. In the repair, my friend running the backhoe ignored my location warning tapes and ripped the gas line and nicked the service cables. Fortunately no real damage just $1000 repair charge from the gas utility.
A bit more horizontal separation would have been much better.
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