Just take zip cord from Powerwerx or Wireman, clamp one end in a vice
and the other in a drill, pull back tight and let the drill do the
twisting. Now you have the best of both worlds.............what ever
"best" happens to be.
Belden makes a cable, grey jacket, inside is a foil shield with a drain,
and a black and a white twisted, and a #12 strand inside. In this
case, one has a shielded twisted pair suitable for 20 amps DC or so.
Works quite nice. I use this for my mobile and travel trailer
installations.............along with some professional sound
installations. I forget the Belden number but if some one needs it,
let me know. There is a 500 foot spool at my shop.
73
Bob, K4TAX
K3S s/n 10,163
On 9/15/2015 7:48 PM, Guy Olinger K2AV wrote:
That would work for stuff that doesn't move much. I should do that for a
lot of my soon to be rewired fixed operating position. But 7 wire stranded
THHN is still not rated for normal flexing or vibration. That's the zip
cord with fine stranded wire. I think that making the last six inches to a
rig connection fine stranded, appropriately heavy zip cord might be best of
both worlds.
73, Guy K2AV
On Tue, Sep 15, 2015 at 3:05 PM, Jim Brown <[email protected]>
wrote:
On Tue,9/15/2015 11:55 AM, Walter Underwood wrote:
Powerwerx has red/black zip cord from 24 gauge to 2 gauge.
Zip cord is NOT good for ANY application, because it is inherently
susceptible to RFI. TWISTED PAIR is FAR better, because it inherently
rejects interference from low audio frequencies to at least VHF. In the
last few years, I've been replacing more of my DC wiring with twisted pair.
I make it by putting black and white stranded THHN in a drill, the other
end in a vise, and twisting.
73, Jim K9YC
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