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Reply To: | TechNet E-Mail Forum. |
Date: | Thu, 24 Apr 2003 11:40:41 +0800 |
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Hi, Genny,
My condolences! PVC-coated wire was banned from use in aircraft equipment
owing to its lack of flame retardant abilities. The PTFE-coated wire
family, of which Teflon is a member, was the preferred replacement.
I think you can infer when to use PVC and when not to - if, as a result of
your equipment catching fire, there is a likelihood of further endangering
life through increased flame or smoke, then don't use it.
Do you now need to change out the wire? Good luck!
Peter
Genny Gibbard <[log in to unmask]> 24/04/2003 03:46 AM
Sent by: TechNet <[log in to unmask]>
Please respond to "TechNet E-Mail Forum."; Please respond to Genny Gibbard
To: [log in to unmask]
cc: (bcc: DUNCAN Peter/Asst Prin Engr/ST Aero/ST Group)
Subject: [TN] wire coatings
Do you remember my question regarding the midplane assembly?
Turns out that there was a reel of mislabelled wire in house, and a whole
bunch of assembly has been done using a PVC coated wire, instead of the
teflon coated wire I spec'd. Apparently the wire in question is obsolete,
but they like using it better than the teflon, and want to continue to use
that.
I don't know much about wire coatings - what is the difference between
these
two coating types, and when would you want to or not want to use them. I
need to decide whether we need to force them to change out the wiring
they've already done.
Sigh...
Thanks for your help in advance.
Genny Gibbard (mailto:[log in to unmask])
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