Lightning Strikes in south UK Tonite
Posted by: Mike-B on 26 May 2018
Looks like a lively night coming for the south & especially south west corner of UK. The pic is showing lightning strikes; just arriving at IoW & SE London. The weather/storm track line is from SE. Maybe an idea to think about pulling plugs at bedtime.
We’ve had a lot of lightning here in West Somerset this evening. I’ve been over at [@mention:50422349809511500]s place and just got home. Think I’ll head out to the office and unplug just in case!
Thanks for heads-up guys - have pulled the plugs on my rig here in Canterbury, just in case.
ATB. George
Canterbury looks like it might be OK George, you have stuff just south of you, but it looks like you ducked the bullet. Nothing that I can see coming in your direction on the radar. A line of strikes passed south of you about an hour ago, its now over Central/NW London & heading my way.
Surely if you’re concerned just unplug the sky box
lightning cant just magic itself into your system, it needs a path, I can’t believe it could strike underground and get to your incoming mains cables
jump the incoming 100A fuse and then through the CU and across the RCCBs
lyndon
Hi Lyndon, not all of us have Sky boxes, TV & Radio antenna are the most likely targets in whatever circumstances, roof mounted especially but in roof/attic is not completely safe. Overhead power & phone cables are another way, & don't think because you don't have an obvious path that you are safe, >50m volts & the EM field around a lightening strike will vaporise a micro chip (believe me I've had a direct strike)
lyndon posted:Surely if you’re concerned just unplug the sky box
lightning cant just magic itself into your system, it needs a path, I can’t believe it could strike underground and get to your incoming mains cables
jump the incoming 100A fuse and then through the CU and across the RCCBs
lyndon
False sense of security. Aside from if it strikes part of your house and finds the wiring, it can strike elsewhere in the distribution system that it as above ground and put a ‘spike’ through the msins, fast enough to get through breakers and fuses, and enough to fry delicate chips
Connections to a wired phone system for internet Are also vulnerable for the same reason, though I don’t know if it would get past the modem/router. (Because above-ground phone lines are common it certainly used to be the case that phones had surge arrestors built in that would stop at least some though I don’t know about modems.)
Looks like Ireland is getting the worst of it at the moment.
I have everything unplugged at the moment, including the phone line, which has, in the past, been hit, destroying a router and several devices connected to it via Ethernet.
Don’t know where this storm is supposed to be, here in EA we could really do with one to clear the air... very humid.
We have had a few cracks of thunder & lightening down here on the south coast followed by heavy down pours. I too have unplugged all my equipment just for piece of mind. I have to say that we needed it, the air feels a bit thresher this morning and all the plants & trees will no doubt feel all the better for it too.
Theoretically, we should now have a better earthing conductivity, which may mean the system could sound a little sweeter after the switch on and warm up process is resumed.
Plenty of lightning here last night and some very heavy downpours from about 11pm onwards. A couple of cars were parked outside and their alarms went off, the rain was so heavy. The lurchers didn't like it at all! I'd unplugged as much as possible. I learned the hard ay last year at how vulnerable some kit can be, even when a strike is a long way away, when all the DECT phones, modems and anything else connected to phone lines got zapped. Be aware that for anyone in the SE of England, tomorrow night we will supposedly have more lightning, so be careful...
Keeping my fingers crossed - I’m at g/f’s this weekend and left everything plugged in at mine...????
nickpeacock posted:Keeping my fingers crossed - I’m at g/f’s this weekend and left everything plugged in at mine...????
Nick, luckily it seems to be mostly cloud to cloud sheet lightning, so although plenty of it, I couldn't see any forks coming down anywhere close by. Fingers crossed for you...
Maybe there's a market here like those that do dog-walking services. Audiophile gear unplugging?
Peace of mind when you're away and fear shit may happen.
We've had some pretty heavy showers near Bath and I've just heard distant rumblings of thunder, but if there was anything closer then I must have slept through it. According to the Met Office website the showers should have passed by midday.
Curiously, we had an unexplained power cut on Friday. I came home to find all the lights on on the 552, but everything still worked. Under normal circumstances, when I switch the equipment on I have a fairly strict sequence, e.g. modem, server, preamp, NDS etc. with the power amp going on last. However, it appears that switching it all on instantaneously when the power is restored still works.
I had a bunch of e-mails this morning from my UPS telling me it had gone to battery & back to mains; all were timed before 02:00 when we went to bed but in that time we did not lose power, it was just the UPS had gone outside its 195-265 volt limit.
lyndon posted:Surely if you’re concerned just unplug the sky box
lightning cant just magic itself into your system, it needs a path, I can’t believe it could strike underground and get to your incoming mains cables
jump the incoming 100A fuse and then through the CU and across the RCCBs
lyndon
A friend had a lot of kit destroyed by a strike a few year s ago.
The lightening hit a tree and jumped off onto a concrete fence post and then jumped off that onto the wall of his re-enforced concrete garage. It blew a hole in the wall and then found a metal wall socket which allowed it to enter the mains. It missed a camping gas cylinder by a whisker.
He lost a lot of stuff, most of his network gear and many appliances were lost. Fortunately his NAP160 was spared.
Simon-in-Suffolk posted:Don’t know where this storm is supposed to be, here in EA we could really do with one to clear the air... very humid.
It got as far as Colchester, Simon, lots of lightening for hours, no thunder, and some heavy rain.
joerand posted:Maybe there's a market here like those that do dog-walking services. Audiophile gear unplugging?
Peace of mind when you're away and fear shit may happen.
Maybe just turn off and unplug as a matter of habit before going away... Or at least in Summer when thunderstorms are most common. Of course that doesn’t help with uncommon Spring events like now. Nor winter ones...
Those not in the large parts Britain that don’t normally get the temperatures dominating the national weather forecast headlines at least have the benefit of fewer thunderstorms to worry about.
Lots of thunder & lightning here in Bucks but mostly cloud to cloud. Didn't see any ground strikes. The main problem I have is that the UnitiServe does not like being switched off incorrectly. So if we get power outages, even for a second, it bu**ers up the US, let alone lightening strikes nearby and power surges.
I turned everything off and unplugged as much as possible. Just restarted everything and thankfully all looks fine.
As always thanks to Mike B for the heads up.
I'd fallen asleep listening to something and was vaguely aware of thunderclaps sounding absolutely superb through the stereo but not making sense in the context of what I was listening, which may have been Wonderful Life by Black.
If there was any damage it's a pretty good upgrade, being in the middle of a thunder & lightning storm.
Simon-in-Suffolk posted:Don’t know where this storm is supposed to be, here in EA we could really do with one to clear the air... very humid.
Not much air cleared around these parts, its very humid & not helped by a very fine single malt & yes it was the first malt that caused the damage. There are more storms brewing over the low countries at the mo & heading west, so you might get some later.
None on the local weather until tomorrow for a short spot around 1am - but I'll keep a look out. Quite breezy now with hazy blue sky - the humidity has dropped with the wind and it is rather pleasant - just as well as there is a beer festival to sample this afternoon
But just looked at the BBC news and it looks like some parts of the country have been having quite a display..... we often say the weather in these parts is different from the rest of the country..... however the mains is fluctuating slightly as the UPS protectors are kicking in sporadically - so there is something happening somewhere
Just got home after more house cleaning and switched the stereo back on (in my usual sequence). I often wonder if the almighty thump when turning the NAP500 on does any damage to the speakers. Sounds OK though, even from cold.
Switched everything off while we where out all day.
What’s needed I a battery thingy we can plug the power supplies into to keep them warm when storms are predicted
Keith