Mains Spike

[PetrolTed]

I had what I can only presume to be a mains spike yesterday. Luckily I've got a UPS protecting the PC and that tripped its circuit breaker and it went into shutdown mode.

However, my wireless network hub thing wasn't protected and now won't switch on. Is it likely to be the transformer that's gone kaput or the whole unit?

[timsta]

Can't really tell, it could be either. If it is a switch mode power supply and not a transformer then you should be lucky and only the power supply should go.

Get the old voltmeter out and check what the output is from the power supply.

Tim

[KITT]

I get quite a few power spikes/cuts where I live and my Netgear router really doesn't like them. I have to unplug it for a few minutes and leave it. When I plug it back in again it seems to recover ok. Worth a go

[stuuu]

We had a really nasty spike in the office once. It was so big it blew a hole in one of the RCD wall sockets.

Anyway all the 'transformer in a plug' type power supplies needed replacing and all AC kit (monitors etc.) had to be sent off for power supply replacement. So hopefully if KITT's solutions doesn't work you should be able to get it working by replacing the power supply.

Good Luck.

[_dobbo_]

our firewall got taken out by one of these... Of course that was before I was in charge and put it on a surge protected UPS!

turned out to be an internal fuse that was rated lower than the fuse in the plug... what's the point of that!!!!

[watkid]

_dobbo_ said:

our firewall got taken out by one of these... Of course that was before I was in charge and put it on a surge protected UPS! turned out to be an internal fuse that was rated lower than the fuse in the plug... what's the point of that!!!!

So, your think if the plug had a 5 amp fuse in it, the fire wall should have had a bigger one? What if the IEC lead had a 13 amp one in. It has been known to happen. Most circuit boardsnhave quick blow fuses in. The point of having a fuse in a circuit is to protect it from these sort of events or, some idiot with a screw driver that does not turn off the power and does not have a clue.




>> Edited by watkid on Wednesday 16th June 09:23

[_dobbo_]

watkid said:

_dobbo_ said: our firewall got taken out by one of these... Of course that was before I was in charge and put it on a surge protected UPS! turned out to be an internal fuse that was rated lower than the fuse in the plug... what's the point of that!!!! So, your think if the plug had a 5 amp fuse in it, the fire wall should have had a bigger one? ]

No, I think that when you spend thousands of pounds on a piece of equipment it should come with something better than a piece of crap AC power converter that porbably costs about £1. I suppose that's too much to ask for though..