Re: Which material has high enough ohmage to resist lightning?

On Wed, 30 Aug 2006 16:05:35 +0100, Mark Fortune
<mark@xxxxxxxxxxxxxxxxxxxx> wrote:

John Fields wrote:
---
I don't think so. Stick your ohmmeter probes into a vacuum and
you'll read a higher resistance than air, even.
---

An ohmeter I would expect to read infinate resistance, but at the
voltages we're talking about (ie involving lightning) isnt the breakdown
voltage much lower than air?

Vacuum can't break down; there's nothing to conduct with.

Electrodes in a vacuum can break down, namely emit electrons or ions
from their surfaces, but that's different.

John

.

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