[mythtv-users] OT:Protection of htpc from power surge through incoming cable

Eric Sharkey eric at lisaneric.org
Wed Nov 6 12:56:36 UTC 2013


On Wed, Nov 6, 2013 at 7:00 AM, Simon Hobson <linux at thehobsons.co.uk> wrote:
> Rajil Saraswat wrote:
>>Is there any way to stop power surge through the incoming cable in the future?
>
> It's very tricky getting this sort of thing right - and many people do it wrong !
>
> Example of getting it wrong. User has a problem with surges in the phone line
> damaging the modem. So they get a surge protector extension lead with phone
> sockets - and routes the phone line through it as well as plugging in the modem.
> The next surge is diverted into the earth wire of the socket strip, so the earth in
> the socket strip now has a spike on it. This feeds up the mains lead fo the modem

Wouldn't that be an example of a surge protector manufacturer doing it wrong?

Eric


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