I wrote:
>
> >But once the arc jumps across the plug gap to ground it doesn't matter
> >whether the plug can handle it or not - at 100kA won't the
> subsequent path
> >be via ionized air? And then won't the spark plug thingy have
> done its job?
> >
To which Rich replied:
> [chortle]
Typical Rich response. If my statement (which was actually a question) is in
error (quite possible) and you know the truth then why don't you educate me?
Lightning (and any electrical arc) travels through a channel of ionized air.
Even if the current is sufficient to vaporize a conductor (such as a spark
plug) the arc can continue through this ionized channel.
Doug, KF4KL
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