coax withstanding voltage

[kell]

Is there such a thing as coaxial cable with a high enough dielectric
withstanding voltage to use as spark plug wire? i.e. >>50kv
Did a little googling but didn't see much.

 

[Ian Stirling]

kell <kellrobinson@yahoo.com> wrote:

Is there such a thing as coaxial cable with a high enough dielectric
withstanding voltage to use as spark plug wire? i.e. >>50kv
Did a little googling but didn't see much.

I recall typical 'working' voltages of 2KV in many cables.
I suspect many low-loss solid polythene dielectric cables would probably
qualify, though may not be specced for it.

 

[Roger Hamlett]

"kell" <kellrobinson@yahoo.com> wrote in message
news:ac786e15.0411281602.72134172@posting.google.com...

Is there such a thing as coaxial cable with a high enough dielectric
withstanding voltage to use as spark plug wire? i.e. >>50kv
Did a little googling but didn't see much.
Look at aviation ignition leads.

Most of these have a shielded 'braid'.
Remember though, you also have to work out how to do the ends very
carefully indeed. The aviation ones have a ceramic insulator in the plug,
and a external thread on the plug, with a clamp nut assembly that grasps
the braid, which ends about an inch before the end of the insulator
itself.

Best Wishes