nuckolls.bob(at)aeroelect Guest
|
Posted: Sat Sep 04, 2010 2:31 pm Post subject: pretty red wire |
|
|
At 01:47 PM 9/4/2010, you wrote:
Quote: |
<rparigor(at)suffolk.lib.ny.us>
Hi Bob
Thx. for the explanation on the connector.
Can you shed some light on the wire that has red translucent insulation?
|
I'm not familiar with any particular wire with
that appearance. Examination of the cut ends shows
that it is thin . . .
A number of years ago I participated in the
study of some wiring fires aboard models of the
Hawker that were assembled in the UK.
There were some very exotic insulation materials
involved . . . all thin, all light, all expensive,
most harder to work with, and some quite spectacular
when participating in an arc-fed fire.
These airplanes were assembled about the same time frame as my
tour of duty at Lear on the GP-180 program.
I think I've told the List members about conversations
and decisions made for getting 22759 Tefzel called
out on the airplane. During that same time, there
were a lot of companies trying to come up with a
new insulation that was thinnest and lightest of
all. In small wires, insulation weight is a much
larger proportion of wire weight.
Over the years, numerous examples of the wire
engineer's most fruitful ideas have found their
way onto airplanes. In some cases with expensive
if not disastrous results. There are wire bundles
totalling thousands of miles of wire flying today
that would scare the socks off you.
I cannot say that the pretty red wire is either
good or bad . . . without knowing the specifics
of it's makeup and qualification testing, it's
not possible to know. I can tell you that airplanes
are flying with lots of PVC and Tefzel wire with
very low risk after a half century of field
experience.
Bob . . .
| - The Matronics AeroElectric-List Email Forum - | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|