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Lightning strikes!

chuffchuff
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Lightning strikes!

We just had a huge thunderstorm, lightning flashes, thunder booms, torrential rain.

I turned off and disconnected the modem and pc respectively until after the storm had passed.

We are connected directly to the telephone exchange by an underground cable.

The exchange is in the middle of the field opposite us; we are surrounded by trees, cows, sheep and open, rolling countryside.

Is it necessary in my situation to disconnect & turn off the modem or is that only

for folk connected by above ground wires?

24 REPLIES
St3
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Re: Lightning strikes!

I never turn mine off, my routers are connected to surge protection sockets

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Re: Lightning strikes!

Would one of those extension sockets which claim to control spikes or surges not work, some also include a socket for the phone cable.

The ones I use are a well known make, a bit pricy but come with a guarantee that compension will be paid if equipment is damaged.

No doubt others on the forum will have more knowledge about this than me.

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Re: Lightning strikes!

I once had an ADSL Modem, a firewall and a network switch fried by a lightning strike. If you have doubts unplug.

Now Zen, but a +Net residue.
St3
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Re: Lightning strikes!

which ones are you reffering to then @gleneagles ? who coughs up the coin ?

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Re: Lightning strikes!

Only affect here were two power cuts (second one very short) but as the power supply is locally all underground and the phone line is underground except for the last 10 metres I am not too bothered

One very desirable after effect is that, because my Billion VDSL router resynchs a lot quicker than a BT modem my sync speeds increased significantly as there wasn't any or very little cross talk

Just need to wait for the Plusnet profile to catch up

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Re: Lightning strikes!

I've always been of the understanding that surge protectors when it comes to lightning are as much use as a handbrake on a canoe due to the massive voltages and currents involved they can easily arc over the air gap. So I've taken to physically disconnecting things when there's a storm about.

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Re: Lightning strikes!

@Oldjim

Looking at http://www.lightningmaps.org/blitzortung/europe/index.php?lang=en that was quite a storm in your area!

jelv (a.k.a Spoon Whittler)
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Re: Lightning strikes!

It was and very local but very short as well with rather heavy rain

St3
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Re: Lightning strikes!

My area has flash floods and thunderstorms forcast from 4pm today until tomorrow :S 

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Re: Lightning strikes!

@jelvj and others..... this map shows the "actual" strikes and the "sound" boom

 

http://www.lightningmaps.org/?lang=en#y=51;x=-6.1524;z=5;t=3;m=sat;r=0;s=0;o=0;b=0.00;n=0;d=2;dl=2;d...;

 

If you zoom down on to your location you will be able to see how "close" the "strikes are to your home....

 

If you click on the "wifi" type icon at top left, you can show the "receiving stations" and the "lines" from those stations to the strikes...

 

 

St3
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Re: Lightning strikes!

@shutter That is pretty cool Smiley

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Re: Lightning strikes!

Regarding the unplugging of devices, it's a good idea to do so, as even if there'e no direct strike, a nearby strike can induce an EMP surge in power and phonelines (hence the use of surge protection), there is no way to protect against a direct strike to power or phonelines, not unless someone covers the UK with a giant faraday cage... Smiley

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Re: Lightning strikes!

That would be a big roll of wire netting ! ! ..Grin

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Re: Lightning strikes!


St3 wrote:

which ones are you reffering to then @gleneagles ? who coughs up the coin ?


The one I have is the Belkin surgemaster, Amazon sell them and they seem to have a fairly good rating from users.

The specific model I quote above is out of stock but a more updated model is available.

The blurb on the box in came in was quoting up to £20,000 compo for damage to equipment, not sure if Belkin cover the cost or if they have a insurance company that gives blanket cover to users of their products.