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JOHN TIPTON
Joined: 17 Sep 2006
Posts: 239
Location: Torquay - England
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 Posted: Tue Mar 10, 2015 5:10 am Post subject: PTFE/Teflon wiring |
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Hi Guys
Is a PTFE/Teflon wiring (22awg) specification, a suitable replacement for TEFZEL aircraft wiring
Regards
John (RV9a - work in progress)
Sent from my iPad
----x--O--x----
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stein(at)steinair.com
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| Posted: Tue Mar 10, 2015 6:39 am Post subject: PTFE/Teflon wiring |
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As a whole the answer is no (there are variations of it that will do, but
basic Teflon is a no-no)...Teflon has cold flow properties that allow it to
flow around things like clamps, zip ties, crimps, etc.. that make it
generally unsuitable for aircraft. It depends just a little bit on the
exact spec, but the stuff you typically see for sale cheaply on the surplus
market isn't good a good "buy".
Just my 2 cents as usual.
Cheers,
Stein
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nuckolls.bob(at)aeroelect
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| Posted: Tue Mar 10, 2015 1:40 pm Post subject: PTFE/Teflon wiring |
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At 09:38 2015-03-10, you wrote:
| Quote: |
As a whole the answer is no (there are variations of it that will do, but
basic Teflon is a no-no)...Teflon has cold flow properties that allow it to
flow around things like clamps, zip ties, crimps, etc.. that make it
generally unsuitable for aircraft. It depends just a little bit on the
exact spec, but the stuff you typically see for sale cheaply on the surplus
market isn't good a good "buy".
Just my 2 cents as usual.
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In this case, it's worth a whole dollar. Some of the
veterans on the List will recall that Greg Richter
came out in favor of Teflon in his treatise on
foolproof aircraft wiring. See page 38 of:
http://www.aeroelectric.com/articles/richter/response_1.pdf
In my whole experience, I've only seen Teflon used
for the flying leads of motors that operatee really
hot . . . once the wires are outside the motor,
they tied into Tefzel or similar.
It's nice stuff to use as hookup wire inside an
electronic assembly. The stranding is silver-plated
and solders really nice! I've got a couple spools
around here but haven't used any in years.
Bob . . .
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JOHN TIPTON
Joined: 17 Sep 2006
Posts: 239
Location: Torquay - England
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| Posted: Tue Mar 10, 2015 3:05 pm Post subject: PTFE/Teflon wiring |
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Thank you all, I'll stick with the Tefzel
John
Sent from my iPad
----x--O--x----
| Quote: | On 10 Mar 2015, at 09:38 pm, "Robert L. Nuckolls, III" <nuckolls.bob(at)aeroelectric.com> wrote:
At 09:38 2015-03-10, you wrote:
>
>
> As a whole the answer is no (there are variations of it that will do, but
> basic Teflon is a no-no)...Teflon has cold flow properties that allow it to
> flow around things like clamps, zip ties, crimps, etc.. that make it
> generally unsuitable for aircraft. It depends just a little bit on the
> exact spec, but the stuff you typically see for sale cheaply on the surplus
> market isn't good a good "buy".
>
> Just my 2 cents as usual.
In this case, it's worth a whole dollar. Some of the
veterans on the List will recall that Greg Richter
came out in favor of Teflon in his treatise on
foolproof aircraft wiring. See page 38 of:
http://www.aeroelectric.com/articles/richter/response_1.pdf
In my whole experience, I've only seen Teflon used
for the flying leads of motors that operatee really
hot . . . once the wires are outside the motor,
they tied into Tefzel or similar.
It's nice stuff to use as hookup wire inside an
electronic assembly. The stranding is silver-plated
and solders really nice! I've got a couple spools
around here but haven't used any in years.
Bob . . .
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