RAArmstrong
///Member
Here's there radar images for Joburg
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Read the WELCOME ALL BMWFANATICS post.
Weather & Hail Warnings
- Thread starter Ralf*
- Start date
Here's there radar images for Joburg
RAArmstrong
///Member
The general trend seems to be west to east according to radar
Erm....Adam....please invest in lightning pole for your house and get it earthed properly....seems the lighting loves your stuff. Sucks when it blowsadamr said:
Ralf*
///Member
Firoze_D said:Erm....Adam....please invest in lightning pole for your house and get it earthed properly....seems the lighting loves your stuff. Sucks when it blowsadamr said:
what about, if lightning strikes the telephone pole, 5 houses down, but the current flows down the telephone line into your ADSL router
Happened to me a while back
Crap...then you must just go turn saltRalf@Speedway Motorsport said:Firoze_D said:Erm....Adam....please invest in lightning pole for your house and get it earthed properly....seems the lighting loves your stuff. Sucks when it blowsadamr said:
what about, if lightning strikes the telephone pole, 5 houses down, but the current flows down the telephone line into your ADSL router
Happened to me a while back
Ralf*
///Member
Firoze_D said:
explain ?
the telephone pole 5 house away took a direct hit a while back, it split the pole totally, and fused all the strands of telephone wires
Telkom had to replace the pole, and a whole section of overhead wires
My ADSL also went up in smoke that day, even the lightning protector/power supply that came with the unit was burnt black inside
Ratslaaf
///Member
First thing first, you don't get such a thing as a "lightning protector". I know that's what they call it, but think about it: If lightning can travel many km's down from the heavens, what chance does a small device have of "protecting" anything?
The correct term is actually a lightning diverter. The idea is to "divert" lightning away from devices sitting down stream. Now think about this: You've got a diverter installed that's (hopefully) grounded. Think about what will be the shortest path to follow? Through your ADSL modem or through the diverter? If the diverter is mounted where the ADSL line enters the house and it's earthed right there with a 6 foot copper spike into the ground, then lightning will take that route and not go through your modem. If, like many users I've seen, it's some silly plug that uses home earthing (remember that earth still goes to the DB board and then only gets earthed) and is the same plug your ADSL router is connected to, you are more likely to lose your router as the 'diverter' diverts the lightning surge through a crappy earth and cannot perform its task properly.
I leave you with this: Do you think Telkom goes and disconnects all the telephone points at the Exchange whenever lightning hits? And the whole telephone network in a 20km radius terminates there - we're talking thousands of lines, all acting like antenna for lightning.
Get this right, your DSTV dish earthing and the 220V entering the house, and you will have no reason to have to suffer lightning damage again.
The correct term is actually a lightning diverter. The idea is to "divert" lightning away from devices sitting down stream. Now think about this: You've got a diverter installed that's (hopefully) grounded. Think about what will be the shortest path to follow? Through your ADSL modem or through the diverter? If the diverter is mounted where the ADSL line enters the house and it's earthed right there with a 6 foot copper spike into the ground, then lightning will take that route and not go through your modem. If, like many users I've seen, it's some silly plug that uses home earthing (remember that earth still goes to the DB board and then only gets earthed) and is the same plug your ADSL router is connected to, you are more likely to lose your router as the 'diverter' diverts the lightning surge through a crappy earth and cannot perform its task properly.
I leave you with this: Do you think Telkom goes and disconnects all the telephone points at the Exchange whenever lightning hits? And the whole telephone network in a 20km radius terminates there - we're talking thousands of lines, all acting like antenna for lightning.
Get this right, your DSTV dish earthing and the 220V entering the house, and you will have no reason to have to suffer lightning damage again.
I meant crap as in that's bad luck...Ralf@Speedway Motorsport said:
netercol
New member
Gbyleveldt said:
even a telkom exchange is not immune from a direct hit. i saw the exchange at highveld in centurion after a direct hit (not supposed to happen ofc, in this case the tower earthing was not up to spesification)
nothing on earth will protect from a direct hit.. best "protectors" or diverters (if you wish) can do is protect against voltage spikes resulting from a strike in the general area..
