On Wed, 17 Mar 2004 21:50:35 -0600, Crazy George wrote:

IIRC, the Apollo capsule wire insulation was FEP, and was ignited when the
power conductor it insulated was mechanically pinched and shorted to ground.
It overheated enough from fault current to ignite before the breaker
tripped.

Kapton tape was blamed in the Swissair 400(?) cockpit fire and crash in
Newfoundland(?) a few years back.

Gasoline vapor fuel fires were ignited by early pagers and first generation
cell phones which used tiny universal motors with eccentric weights as
silent ring annunciators.

My Motorola Classic has one of those. What are they using now?

Find one of those old beasts and try running that
motor in a flammable environment.

OK

The technical basis of this is covered in a text: "Intrinsic Safety" by
Redding, published by Mc Graw Hill.


--
Best Regards,
Mike