Re: Lightning protection


"Tom MacIntyre" <tom__macintyre@xxxxxxxxxxx> wrote in message
news:vchjc1dass8ssi9us9opo49nl06sg5juft@xxxxxxxxxx
>
> Hi folks...this was in a baseball newsgroup that I participate in
> (rec.sport.baseball). Faraday cages have been mentioned, implying that
> it could be safe. I don't know that I'd trust this against lightning
> (maybe a Van de Graff generator). What do you think?
>
> "Just wondering if sitting on a wood bench inside a metal cage (i.e.
> metal on top and 4 sides) is a safe place to be during a lightning
> storm. This is similar to the situation of being in a car (except for
> the rubber tires!). I have seen younger kids wait out a passing storm
> this way and am wondering if it IS in fact safe? What would the effect
> of metal cleats be? I'd appreciate any thoughts from anybody but
> especially from physics teachers/physicists. Thanks!"
>
> Tom

there is no guarantee that a baseball cage is adequately grounded. the
support poles are usually set in concrete.

faraday cages are meant to block RF. lightning is DC (mostly).

refer to http://www.lightningsafety.com/nlsi_pls/lst.html


http://www.securityworld.com/community/quicktips/lightningsafety.html

http://www.nhoem.state.nh.us/mitigation/fig%203-16.htm

http://www.metlife.com/Applications/Corporate/WPS/CDA/PageGenerator/0,1674,P4091,00.html

http://www.scouter.com/compass/Leaders_Resource/Troop_Safety/Lightning_Safety/


i routinely repair lightning damaged equipment. when you see first hand
large molten globs of metal, ceramic, and other material that used to be
perfectly good electronics you tend to get real cautious about where you go
and what you do when a lightning storm passes through.







.

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