We had a nice round of thunderstorms go through the San Francisco area last night with lots of C to C and C to G lightning.
I live in a building that's mostly wood frame with no formal lightning protection except for an old fashioned antenna on the roof. The antenna has been left intact for those who don't have cable TV and still rely on broadcast. The antenna is connected to a cable/broadcast selector box that is grounded through ComCast's main cable that's finally terminated in a box under the sidewalk in front of the building. So that's the "lightning rod" and the only protection against some other part of the building getting a hit.
However just to be on the safe side, I disconnect the power and internet connections from my computer and phone when there's a lightning storm in the area. My concern is if lightning hits the antenna (or another part of the building like a sheet metal pipe for a heater vent), it may seek ground through the power and phone wiring and fry my computer and phone which are both essential and expensive items to replace.
So is this a wise precaution or am I just being paranoid?
I live in a building that's mostly wood frame with no formal lightning protection except for an old fashioned antenna on the roof. The antenna has been left intact for those who don't have cable TV and still rely on broadcast. The antenna is connected to a cable/broadcast selector box that is grounded through ComCast's main cable that's finally terminated in a box under the sidewalk in front of the building. So that's the "lightning rod" and the only protection against some other part of the building getting a hit.
However just to be on the safe side, I disconnect the power and internet connections from my computer and phone when there's a lightning storm in the area. My concern is if lightning hits the antenna (or another part of the building like a sheet metal pipe for a heater vent), it may seek ground through the power and phone wiring and fry my computer and phone which are both essential and expensive items to replace.
So is this a wise precaution or am I just being paranoid?
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