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#1
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Wire for high voltage pulse
Can I use some RG-58/9 coax as a conductor for a fencer? The unit pulses
about once per second at about 2500 volts. I need to feed a fence with about 25 feet of conductor underground so I thought maybe using the coax leaving the shield ungrounded might work. Any thoughts? I figured that if I grounded the shield, it might act as a choke...... Ron H. x-- 100 Proof News - http://www.100ProofNews.com x-- 3,500+ Binary NewsGroups, and over 100,000 other groups x-- Access to over 1.6 Terabytes per Day - $8.95/Month x-- UNLIMITED DOWNLOAD |
#2
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Ron H wrote:
Can I use some RG-58/9 coax as a conductor for a fencer? The unit pulses about once per second at about 2500 volts. I need to feed a fence with about 25 feet of conductor underground so I thought maybe using the coax leaving the shield ungrounded might work. Any thoughts? I figured that if I grounded the shield, it might act as a choke...... At this sort of frequency, the shield acts mostly like a bit of capacitance. And that doesn't vary much whether you ground it or not, once the cable is buried, since the soil surrounding the cable is also "grounded". But leaving it floating makes it a shock hazard. I would ground it. I also suggest that you strip the shield back a couple inches from the ends of the internal insulation, to keep the center wire from arching to the shield at the ends. |
#3
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Ron:
There are many types of RG/6 58 or 59. They all have different dielectrics so the ratings will all be different depending on the type. However, I do not believe any of them would have a 2500 Volt rating. Probably more like 300 or 600 volt. If you are dead set on using coax, don't hook the shield to anything on either end. And, put it in some PVC conduit when you burry it. This might work. To do it right I would get some HV wire at your local TV shop. Also, this would need to be in a PVC pipe of some kind to keep water and critters away from it. Pat Ziegler Wholesale Electronics Inc. www.weisd.com "Ron H" wrote in message ... Can I use some RG-58/9 coax as a conductor for a fencer? The unit pulses about once per second at about 2500 volts. I need to feed a fence with about 25 feet of conductor underground so I thought maybe using the coax leaving the shield ungrounded might work. Any thoughts? I figured that if I grounded the shield, it might act as a choke...... Ron H. x-- 100 Proof News - http://www.100ProofNews.com x-- 3,500+ Binary NewsGroups, and over 100,000 other groups x-- Access to over 1.6 Terabytes per Day - $8.95/Month x-- UNLIMITED DOWNLOAD |
#4
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The data sheet that I have indicates that the RG-58/9 center conductor has a
dielectric breakdown voltage between 1900 (58) and 2300 (59) volts. The outer covering is probably in the 500-600 volts range. Thus I am assuming that they would hold up for the max 2500 pulse leaving the shield unconnected. Do you really think that the PVC pipe is necessary? Ron H. "Pat Ziegler" wrote in message ... Ron: There are many types of RG/6 58 or 59. They all have different dielectrics so the ratings will all be different depending on the type. However, I do not believe any of them would have a 2500 Volt rating. Probably more like 300 or 600 volt. If you are dead set on using coax, don't hook the shield to anything on either end. And, put it in some PVC conduit when you burry it. This might work. To do it right I would get some HV wire at your local TV shop. Also, this would need to be in a PVC pipe of some kind to keep water and critters away from it. Pat Ziegler Wholesale Electronics Inc. www.weisd.com "Ron H" wrote in message ... Can I use some RG-58/9 coax as a conductor for a fencer? The unit pulses about once per second at about 2500 volts. I need to feed a fence with about 25 feet of conductor underground so I thought maybe using the coax leaving the shield ungrounded might work. Any thoughts? I figured that if I grounded the shield, it might act as a choke...... Ron H. x-- 100 Proof News - http://www.100ProofNews.com x-- 3,500+ Binary NewsGroups, and over 100,000 other groups x-- Access to over 1.6 Terabytes per Day - $8.95/Month x-- UNLIMITED DOWNLOAD x-- 100 Proof News - http://www.100ProofNews.com x-- 3,500+ Binary NewsGroups, and over 100,000 other groups x-- Access to over 1.6 Terabytes per Day - $8.95/Month x-- UNLIMITED DOWNLOAD |
#5
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That depends on weather you want to dig it up again someday..
I suppose you could find some "Direct Burry" coax, that would last longer. Pat Ziegler www.weisd.com "Ron H" wrote in message ... The data sheet that I have indicates that the RG-58/9 center conductor has a dielectric breakdown voltage between 1900 (58) and 2300 (59) volts. The outer covering is probably in the 500-600 volts range. Thus I am assuming that they would hold up for the max 2500 pulse leaving the shield unconnected. Do you really think that the PVC pipe is necessary? Ron H. "Pat Ziegler" wrote in message ... Ron: There are many types of RG/6 58 or 59. They all have different dielectrics so the ratings will all be different depending on the type. However, I do not believe any of them would have a 2500 Volt rating. Probably more like 300 or 600 volt. If you are dead set on using coax, don't hook the shield to anything on either end. And, put it in some PVC conduit when you burry it. This might work. To do it right I would get some HV wire at your local TV shop. Also, this would need to be in a PVC pipe of some kind to keep water and critters away from it. Pat Ziegler Wholesale Electronics Inc. www.weisd.com "Ron H" wrote in message ... Can I use some RG-58/9 coax as a conductor for a fencer? The unit pulses about once per second at about 2500 volts. I need to feed a fence with about 25 feet of conductor underground so I thought maybe using the coax leaving the shield ungrounded might work. Any thoughts? I figured that if I grounded the shield, it might act as a choke...... Ron H. x-- 100 Proof News - http://www.100ProofNews.com x-- 3,500+ Binary NewsGroups, and over 100,000 other groups x-- Access to over 1.6 Terabytes per Day - $8.95/Month x-- UNLIMITED DOWNLOAD x-- 100 Proof News - http://www.100ProofNews.com x-- 3,500+ Binary NewsGroups, and over 100,000 other groups x-- Access to over 1.6 Terabytes per Day - $8.95/Month x-- UNLIMITED DOWNLOAD |
#6
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On Mon, 27 Jun 2005 14:40:56 -0500, "Pat Ziegler"
wrote: I suppose you could find some "Direct Burry" coax, that would last longer. --- _Big_ help... -- John Fields Professional Circuit Designer |
#7
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John:
I see you are up to your usual arrogance. I apologize, I forgot your opinion is the only one that counts. Your very special. You may want to consider removing the word "Professional" from you self description, Last I heard, "Professionals" don't act like children. And you will notice this time I am replying to the entire group so everyone can whiteness your behavior.. (thanks for the heads up) "John Fields" wrote in message ... On Mon, 27 Jun 2005 14:40:56 -0500, "Pat Ziegler" wrote: I suppose you could find some "Direct Burry" coax, that would last longer. --- _Big_ help... -- John Fields Professional Circuit Designer |
#8
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On Mon, 27 Jun 2005 13:57:43 -0500, Ron H wrote:
The data sheet that I have indicates that the RG-58/9 center conductor has a dielectric breakdown voltage between 1900 (58) and 2300 (59) volts. The outer covering is probably in the 500-600 volts range. Thus I am assuming that they would hold up for the max 2500 pulse leaving the shield unconnected. Do you really think that the PVC pipe is necessary? Are you stuck with a bunch of coax cable or something? It's a terrible choice for this job. Go get a 100' spool of high-voltage wire at the TV repair shop - the kind they use for the anode lead. And put it in PVC pipe. Good Luck! Rich |
#9
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On Mon, 27 Jun 2005 12:12:53 -0500, "Ron H"
wrote: Can I use some RG-58/9 coax as a conductor for a fencer? The unit pulses about once per second at about 2500 volts. I need to feed a fence with about 25 feet of conductor underground so I thought maybe using the coax leaving the shield ungrounded might work. Any thoughts? I figured that if I grounded the shield, it might act as a choke...... --- http://www.parmakusa.com/Install/underg.htm -- John Fields Professional Circuit Designer |
#10
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On Mon, 27 Jun 2005 13:59:38 -0500, John Fields
wrote: On Mon, 27 Jun 2005 12:12:53 -0500, "Ron H" wrote: Can I use some RG-58/9 coax as a conductor for a fencer? The unit pulses about once per second at about 2500 volts. I need to feed a fence with about 25 feet of conductor underground so I thought maybe using the coax leaving the shield ungrounded might work. Any thoughts? I figured that if I grounded the shield, it might act as a choke...... --- http://www.parmakusa.com/Install/underg.htm GTO-15 is another good choice. Check your local neon sign shop(s). -- John Fields Professional Circuit Designer |
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