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Posted by aemeijers on October 15, 2009, 10:20 pm
Red Green wrote:
>
>>> Was talking with someone the other day and mentioned that I had just
>>> grounded the TV antenna (the mast, actually) to protect against
>>> lightning strikes, and they said that was not such a good idea
>>> because lightning is more likely to strike a path that goes straight
>>> to ground. Now I am no
>> t
>>> sure what to do. Anyone have any input on this topic? Ideas are gra
>> tefully
>>> received...
>>> Thanks,
>>> Dave
>> Nah. Don't bother the lightning; if it strikes the antenna will go to
>> ground through the TV set etc. (probably blowing the sh*t out of
>> it!). And then find a way to the home's water supply pipe through
>> Grandma's vintage silverware.
>> More seriously: Some may remember church towers that had heavy copper
>> strips from ground to a spike on top of the steeple etc.
>> The idea being to try and discharge the high voltage of an incipient
>> lightning strike before an arc occurred.
>> Metal boat masts should be 'grounded' to the water for similar reason.
>
>
> Church behind my house in VT took such a hit a couple of years ago when I was
there.
>
> Pics of big bang result and rebuilding on pg 72.
>
http://www.town.williston.vt.us/website/images/documents/annual_report/annrept.pdf
>
> http://www.usatoday.com/weather/news/2007-06-04-tower_N.htm?csp=34
So what are you supposed to do if antenna is on opposite side of house
from electric service and ground stake, and no plausible way to run a
cable between them? Yes, this is an actual question.
--
aem sends...
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> grounded the TV antenna (the mast, actually) to protect against lightning
> strikes, and they said that was not such a good idea because lightning is
> more likely to strike a path that goes straight to ground. =A0Now I am no=