I hope this isn't a stupid question. I'm curious; what exactly is the
powder between the outer sheath and the inner conductors in a mains
power lead? I'm talking about the stuff that gets everywhere when you
strip a lead to replace a power plug or socket. Its inside every
Australian lead I've ever worked on - I guess US ones are the same.
Thanks for your help.
No Pete the o/p is talking flexible cable to an appliance I think.
Pyro (M.I.C. or Mineral Insulated Cable) is for fixed wiring and
usually specified for areas of fire hazard or services that must
survive a fire for a period like emergancy lighting.
Yes and No. . Its to stop the wire(s) sticking to the sheath, makes
life easier when stripping them.....also, provides a little bit of
"slip" between the wire and the sheath, useful for cables that get
flexed a lot....no doubt there are now more "modern" plastics used for
this that dont need the talc...
My guess its talc. But why? my further guis that most cables today are
made with plastic or pvc. this is extruded hot around the inner
insulated leads. the talc is to prevent the outer from bonding to the
inner pvc so the electrician can strip them easily.
Interesting. Talc makes sense; I hadn't thought about the need for
the conductors to slide inside the sheath when the lead is flexed /
This is in a brand new cable, BTW.
On Sat, 06 Jan 2007 12:46:56 +1000, Darren J. Paul
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