[mythtv-users] Migrating RAID

David Brodbeck gull at gull.us
Sun Nov 4 20:58:32 UTC 2007


On Nov 4, 2007, at 3:32 AM, Mike Perkins wrote:
> However, if you have a conduit "pretty full" of other cables the  
> safety of your
> data cable is moot. What do you think lightning is going to do if  
> it finds a
> whole lot of copper running between both buildings?

Well, if the buildings are only 60m apart, it probably doesn't matter  
anyway -- a direct strike to one will induce significant current into  
any non-buried cables going into the other.

But unless you've got outside antennas or other objects that are  
higher than surrounding trees, terrain, etc., a direct strike is  
pretty unlikely.

If you *do* have outside antennas, you should focus your lightning  
protection there.  Pick up a copy of the ARRL Handbook, or check one  
out from your local library -- the recommendations there are  
practical and well thought out.




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