High Voltage Cabling Trench Over Buried Gas Pipeline
High Voltage Cabling Trench Over Buried Gas Pipeline
(OP)
Hi Everybody,
Is there any limitation on cabling HV line (230kV) in a trench over a buried natural gas pipeline?
Any reference to standard (or credible article) will be highly appreciated.
Regards,
Is there any limitation on cabling HV line (230kV) in a trench over a buried natural gas pipeline?
Any reference to standard (or credible article) will be highly appreciated.
Regards,





RE: High Voltage Cabling Trench Over Buried Gas Pipeline
**********************
"The problem isn't working out the equation,
its finding the answer to the real question." BigInch
http://virtualpipeline.spaces.live.com/
RE: High Voltage Cabling Trench Over Buried Gas Pipeline
David
RE: High Voltage Cabling Trench Over Buried Gas Pipeline
**********************
"The problem isn't working out the equation,
its finding the answer to the real question." BigInch
http://virtualpipeline.spaces.live.com/
RE: High Voltage Cabling Trench Over Buried Gas Pipeline
David
RE: High Voltage Cabling Trench Over Buried Gas Pipeline
However I wouldn't think that safety issues would be ignored when placing utilities in those corridors either.
How's the induction current near 230 kVA UG lines running parallel?
**********************
"The problem isn't working out the equation,
its finding the answer to the real question." BigInch
http://virtualpipeline.spaces.live.com/
RE: High Voltage Cabling Trench Over Buried Gas Pipeline
There was a thread here a few weeks ago on induction current, I can't remember what the title was, but there was some information in it that I hadn't seen before.
David
RE: High Voltage Cabling Trench Over Buried Gas Pipeline
Colorado, south of Lamar on the BLM Comanche Grassland, and in Kansas BLM Cimarron Grassland. Ya, I remember those guys. I know your pain. Don't forget that BLM also runs the offshore lease lands. Texas was independent and of the land they kept inside the state lines when joining up, that's all theirs. They gave the BLM Colorado, New Mexico and half of Utah and I think Oklahoma so that they would leave the Texans alone. The BLM later gave OK. to the Indians, then took it back.
I mentioned the part about the farmers getting some voltage off their parallel fence lines in that thread and not storing pipes N-S. Otherwise there was no usable info there, as I recall. I would expect that UG cables might get some insulation effect from earth covering, but I really don't know how much, if any. Induction, something to think about until the EE guy shows up.
**********************
"The problem isn't working out the equation,
its finding the answer to the real question." BigInch
http://virtualpipeline.spaces.live.com/
RE: High Voltage Cabling Trench Over Buried Gas Pipeline
David
RE: High Voltage Cabling Trench Over Buried Gas Pipeline
RE: High Voltage Cabling Trench Over Buried Gas Pipeline
**********************
"The problem isn't working out the equation,
its finding the answer to the real question." BigInch
http://virtualpipeline.spaces.live.com/
RE: High Voltage Cabling Trench Over Buried Gas Pipeline
http:
The guys in above article describe a method for mitigation of AC induced current on buried pipeline. In our case the buried gas pipeline shall have an earthing system (for corrosion). Is that enough for local induced current which was discussed in the article?
It should be added that buried pipeline is also wrapped.
RE: High Voltage Cabling Trench Over Buried Gas Pipeline
When paralleling AG HV transmission lines, various clearance distances are maintained depending on voltage levels, plus direct bonding between pipe and towers is often employed.
**********************
"The problem isn't working out the equation,
its finding the answer to the real question." BigInch
http://virtualpipeline.spaces.live.com/
RE: High Voltage Cabling Trench Over Buried Gas Pipeline
Wrapping will actually not help for dissipating AC but allow the AC to be moved farther on pipelines (obviously helps protects against corrosion and any potential AC induced corrosion, certainly keep it on).