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- From: pierson@empror.enet.dec.com (dave pierson)
- Newsgroups: sci.physics.fusion
- Subject: Re: A real wire
- Message-ID: <1993Jan8.194738.25160@ryn.mro4.dec.com>
- Date: 8 Jan 93 19:44:40 GMT
- References: <9AFE0CEE377FA0C463@vms2.uni-c.dk>
- Sender: news@ryn.mro4.dec.com (USENET News System)
- Organization: Digital Equipment Corporation
- Lines: 28
-
- In article <9AFE0CEE377FA0C463@vms2.uni-c.dk>, Dieter Britz
- <BRITZ@kemi.aau.dk> writes...
-
- >Originally-From: logajan@ns.network.com (John Logajan):
- >
- >>The result is that in the earths atmosphere, a sphere of about 15" in diameter
- >>is require to hold a voltage potential of 1,000,000 volts without causing
- >>electrical breakdown in the air due to high near surface gradients, while
- >>it only requires a wire of about 2" in diameter to transport 1,000,000 volts
- > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- >>along a high tension power grid with causing electrical breakdown of the air.
- >
- >Now that is what I call a real wire! Would that be silver, John?
- >Sorry, I couldn't resist.
-
- Older books (1930s) show hollow conductor (drawn interlocking segments)
- for 100KV and up. More currently (8)>>) clusters of two, three, or
- four smaller (~1") conductors spaced 6-12" are used, with spacer
- brackets to maintain the interval. They simulate a larger
- conductor well enough for practical purposes. Aluminum is common.
-
- thanks
- dave pierson |the facts, as accurately as i can manage,
- Digital Equipment Corporation |the opinions, my own.
- 40 Old Bolton Rd |I am the NRA.
- Stow, Mass, USA
- 01775 pierson@msd26.enet.dec.com
- "He has read everything, and, to his credit, written nothing." A J Raffles
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