[plug] Lightning risk

Jim Householder nofixed at westnet.com.au
Wed Feb 16 14:16:03 WST 2005


Arie Hol wrote:
> 
> On 14 Feb 2005 at 14:01, Jim Householder wrote:
> 
> 
>>Hi
>>
>>Can anyone shed light on the risk of spikes due to lightning?
>>
>>Our current setup is Mains --> surge board --> UPS --> computer-1.  #2 
>>has a more expensive surge board ($80,000 for damaged equipment type). 
>>I had the tv cable go through the fancy surge board but it caused very 
>>bad interference so it's bypassed now, but there is a VCR before the 
>>computer.
>>
>>All mains powered equipment except the ADSL modem are surge protected, 
>>but only the computers and monitors are on the UPSs.
>>
> 
> 
> I had a case last year, where a lightning strike got in through and unprotected PC - followed the 
> coax network cable and took out three PC's and their NIC's as well as a networked Laser printer.
> 

Thanks guys.  It appears the primary vulnerability I have is the only 
one not protected.  I will take care of it asap.

Jim



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