[time-nuts] Thoughts on lightning protection measures....
SAIDJACK at aol.com
SAIDJACK at aol.com
Thu Apr 12 23:38:17 UTC 2012
Hi Bjoern,
Possibly, I am just reciting what I read in the Nordig requirements a
looong time ago. Maybe they are worried about far north permafrost scenarios
that go deeper? The requirements for receiver RF input surge protection were
much higher than the usual US requirements..
bye,
Said
In a message dated 4/12/2012 15:38:55 Pacific Daylight Time,
bg at lysator.liu.se writes:
Said,
The ground is a decent thermal isolator. And will in nordic countries not
often go deeper than about 1 meter. You need to build your houses
foundation "deep" enough to stand on non frozen ground. Otherwise your
house will move to much with the seasons and likely break. It is not that
hard to get your ground pole deep enough to avoid freezing problems.
--
Björn
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