On Fri, 14 Jul 2000 11:58:03 -0500, Clarence Verge wrote:
> Mike Millen wrote:
>> Try touching an earth to one of your phone lines during a conversation
>> and see what happens.
>> Mike
>> (Telephone equipment designer. :)
> Hi Mike;
> I asked Kali, and now I'm asking you. What do you do about lightning strikes ?
> - Clarence Verge
> --
> - Help stamp out FATWARE. As a start visit: http://home.arachne.cz/
> --
After I had lost a telephone set and a faxmachine and after the editors
office lost a modem, a computer, the faxmachine and the swithboard...
I build a 'lightning detector' for early warning.
The detector is a special built long wave receiver (� 300kHz).
And when lightning is around I plug out all telephone equipement...
exept an 30 year old telephone (has no solid state components).
I also had a ferrite ring core coil in both incomming lines and a neon
bulb for protection and deletion of spikes... sometimes lightning comes
when you are not at home.
toroid
line in ------------uuuuuuuu---------|-------> equipment
|
|
neon bulb
|
line in -------------uuuuuuuu---------|-------> equipment
toroid
toroid is 15mm dia ferrite Philips blue 2x 25 turns
(3 torroids use in series)
Hope lightning never visits you... Bastiaan
.
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