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Old 4th January 2010, 08:47 PM   #1
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Default High voltage hookup wire

Hi,

I am in the planning stages for an 845 SET amp. The power supply will be near 1100 Volts and will require hook-up wire that can safely carry the voltage. Any suggestions on the wire to use and where to get it by the foot ?

Same for caps... any good sources of 1.5 to 2 KV caps ? I know I can use a series of 2 or 3 caps to get the right voltage, but using 1 cap would be nice.
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Old 4th January 2010, 08:56 PM   #2
PBeyer is offline PBeyer  Netherlands
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Default Use COAX

I have used coax in many occasions to carry 3000V. Just rip out the inner conductor from RG58 or smaller out of the breaded shield ..... You can also leave the shield on, unconnected, isolated through some crimp socket.

simple, cheap, effective and safe!
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Old 5th January 2010, 01:22 PM   #3
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Great tip on the cable.
I looked for more information and specs for caox types. ere is a couple of intersting links:
RF Cafe - Coaxial Cable Specifications Cables Chart

The RG58 is indeed a good choice: 1900V and with solid Polyethylene + small diameter.

thanks.
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Old 5th January 2010, 03:27 PM   #4
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Just looked closer at the Belden specs for RG58. There are multiple version of RG58, and not all of them can carry high voltage. The common denominator is solid Polyethylene PE.
The Belden 8240, 8259, 9201 and 9310 are rated 1400V RMS. All the other RG58 variants have foamed Polyethylene and are specced at 300V.
Another great lookup table from Belden:
http://www.belden.com/pdfs/03Belden_...es/06.3_15.pdf
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Last edited by lowtherdream; 5th January 2010 at 03:52 PM.
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Old 5th January 2010, 04:23 PM   #5
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Any neon sign installer will have cheap HV wire. Most likely 15KV rated.
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