Re: Plastic gas pipes in http://www.dslreports.com/forum/r16880660 en Fri, 27 Nov 2009 23:58:09 EDT Fri, 27 Nov 2009 23:58:09 EDT Re: Plastic gas pipes http://www.dslreports.com/forum/remark,16888657 Tom517 : It's actually not that easy to find with the average metal detector; which is why, most of the time, they put an RF signal on the wire. :)]]> http://www.dslreports.com/forum/remark,16888657 Tue, 12 Sep 2006 13:08:09 EDT Re: Plastic gas pipes http://www.dslreports.com/forum/remark,16887975 printscreen :
said by vpoko See Profile :

Ehh? Why would they want people locating them with metal detectors?
For the service people to find the exact location of the pipe without digging. This is done with water pipes also but I have seen them using a metallic tape similar to the one placed above buried power and telephone lines instead of a wire.]]> http://www.dslreports.com/forum/remark,16887975 Tue, 12 Sep 2006 11:22:09 EDT Re: Plastic gas pipes http://www.dslreports.com/forum/remark,16887491 vpoko :
said by Tom517 See Profile :

Actually the wire is there so the gasline can be located with metal detectors.
Ehh? Why would they want people locating them with metal detectors? "Ooh, I think I found a treasure, better get a pick axe and dig it up!"]]> http://www.dslreports.com/forum/remark,16887491 Tue, 12 Sep 2006 09:49:40 EDT Re: Plastic gas pipes http://www.dslreports.com/forum/remark,16886421 Tom517 : Actually the wire is there so the gasline can be located with metal detectors.]]> http://www.dslreports.com/forum/remark,16886421 Tue, 12 Sep 2006 01:36:02 EDT Re: Plastic gas pipes http://www.dslreports.com/forum/remark,16885782 anon : Its not the pipe carrying the signal, it is the ground line that is wrapped around the pipe that will carry the signal.]]> http://www.dslreports.com/forum/remark,16885782 Mon, 11 Sep 2006 23:18:49 EDT Re: Plastic gas pipes http://www.dslreports.com/forum/remark,16883950 8744675 : Geez, sounds like they've just upped the ante for the FIOS installers to cut more gas lines. And when they do, there goes all your personal information gushing up from a hole in the ground and being spread all over the street!]]> http://www.dslreports.com/forum/remark,16883950 Mon, 11 Sep 2006 18:39:18 EDT Re: Plastic gas pipes http://www.dslreports.com/forum/remark,16882378 keyboard5684 : They have a wire for grounding out electricity that builds up from gas moving through the pipe. Gas moving through gas lines creates electricity and needs dissipated.]]> http://www.dslreports.com/forum/remark,16882378 Mon, 11 Sep 2006 14:34:09 EDT Re: Plastic gas pipes http://www.dslreports.com/forum/remark,16882077 RadioDoc : Theoretically, a buried plastic gas line can still act as a waveguide (which is what they are trying to do here) but it would have higher losses than a copper pipe of the same dimensions.

However...this all assumes they can get it to go through the regulator and meter. No gas company in their right mind is going to connect anything on the high pressure side of the regulator.
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I think there using the plastic as jacketing to stop signal bleeding like coaxial cable.]]> http://www.dslreports.com/forum/remark,16881132 Mon, 11 Sep 2006 11:07:17 EDT Re: Plastic gas pipes http://www.dslreports.com/forum/remark,16881020 Transmaster : Plastic can conductive but it has to be made that why up front, and I don't think what they have in the ground now is. But as has been said Plastic by it's self can not be a wave guide.
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The older I get the more I prefer the company of my dogs over that of man kind.

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]]> http://www.dslreports.com/forum/remark,16881020 Mon, 11 Sep 2006 10:46:27 EDT Re: Plastic gas pipes http://www.dslreports.com/forum/remark,16880887 russotto : Plastic won't work as a waveguide.]]> http://www.dslreports.com/forum/remark,16880887 Mon, 11 Sep 2006 10:17:10 EDT Re: Plastic gas pipes http://www.dslreports.com/forum/remark,16880832 vpoko :
said by Bobcat See Profile :

EDIT: The article says this works with plastic gas pipes. Is the plastic conductive?
It doesn't have to be, the technology doesn't send an electrical signal along the pipe, it sends an RF signal *inside* the pipe, with the pipe acting as a waveguide.]]> http://www.dslreports.com/forum/remark,16880832 Mon, 11 Sep 2006 10:02:48 EDT Re: Plastic gas pipes http://www.dslreports.com/forum/remark,16880660 BF69 : Maybe these are the TUBES Senator Stevens was talking about.]]> http://www.dslreports.com/forum/remark,16880660 Mon, 11 Sep 2006 09:28:21 EDT Re: Plastic gas pipes http://www.dslreports.com/forum/remark,16880637 Semi751 : Interesting idea but I don't quite understand how it would work. It seems an idea worth testing, who know it may be in norm in another 15 years.]]> http://www.dslreports.com/forum/remark,16880637 Mon, 11 Sep 2006 09:24:20 EDT Plastic gas pipes http://www.dslreports.com/forum/remark,16880584 Bobcat : EDIT: The article says this works with plastic gas pipes. Is the plastic conductive?]]> http://www.dslreports.com/forum/remark,16880584 Mon, 11 Sep 2006 09:12:09 EDT