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Date: | Mon, 11 Oct 1999 14:48:55 -0700 |
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KK-
TEFZEL insulated wire should be more resistant to "cold flow" failure, but I
don't have anything backing this up.
A favorite wire here is MIL-W-22759/33, which uses a modified ETFE
[Ethylene-tetrafluoroethylene], or TEFZEL, insulation.
for more info try
http://www.dupont.com/teflon/chemical/
and contact some wire manufacturers:
http://www.nationalwire.com/index.html
http://www.alphawire.com/index.html
Regards,
Michael Alderete
Aerojet
KK Chin wrote...
------------------------------
Date: Mon, 11 Oct 1999 11:33:14 -0700
From: KK Chin <[log in to unmask]>
Subject: Teflon and Tefzel Wire
Dear Technet friends,
We've been using tefzel (a modified teflon) insulated wires in our
transformer
assemblies. Some people are concerned that the teflon's cold-flow property
would
end up in shorts between windings where there are pressure points. My
questions
are:
- Is tefzel better than the unmodified teflon in this respect?
- How is the cold-flow characteristic quantified?
- Where can I find the "cold-flow index" of the materials?
Yours sincerely
K.K. Chin
Artesyn Technologies
Fremont, CA
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