>-----Original Message-----
>From: Ted Rook [mailto:[email protected]]
>Sent: Friday, October 11, 2002 7:04 AM
>To: <
>Subject: 160 Amp Triax
>
>
>
>maybe you could try the DOD, they probably have something like
>this to feed the deep space antenna at Arecibo ;-)
>
>seriously now, I'm very curious to know the application, or
>have we been missiled by a typo?
>
>Best Regards
>
>Ted Rook, Console Engineering, ext 4659
>
>Please note our new location and phone numbers:
>
>Crest Audio Inc, 16-00 Pollitt Drive
>Fair Lawn, NJ 07410 USA
>
>201 475 4600 telephone receptionist, 8.30 - 5 pm EST.
>201 475 4659 direct line w/voice mail, 24 hrs.
>201 475 4677 fax, 24 hrs.
Ted:
Having had a little chuckle about the implications of needing 160 Amp, 2000
V triax, I think we need to clarify the OP's requirements. I'm gonna stick
out my neck a bit, but I don't think the OP was looking for an RF triax
cable, where the usual application of putting DC power on the line (by using
a bias tee and blocking capacitor) is to support a remote RF pre-amplifier.
The humor for we RF guys is that the implied power being transferred is
vastly higher than reasonable for a pre-amp.
I think the OP meant that he was looking for a power cable that was built in
a triaxial manner, and that the central core and the inner shield layer
would have to carry the 160 Amps with a 2000 V potential. And, that the
insulation between the inner shield and the outer shield also had to
withstand 2000 V potential. He didn't say anything about the current
capacity of the outer shield, nor anything about the quality of any external
insulation.
So what he wants is a power transmission line built in a specific manner,
not an RF line that also will carry current. I don't think it's an
off-the-shelf product, but it sure is possible to build. I wonder if twisted
shielded pair would work just as well? Hmmm, two strands of # 1/0, with
heavy insulation. That would end up maybe 2" OD.
Ed
Ed Price
[email protected]
Electromagnetic Compatibility Lab
Cubic Defense Systems
San Diego, CA USA
858-505-2780 (Voice)
858-505-1583 (Fax)
Military & Avionics EMC Is Our Specialty
Shake-Bake-Shock - Metrology - Reliability Analysis
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