Can a power failure cause a PSU to blow?

[Lee2k4]

Last night my electric went (I am on a token meter) as soon as I switched the electric back on the fuse for the plug sockets flipped. Went to turn the PC back on and got no power. I could smell burning at the back of the PSU which led me to believe it has blown. What could have caused it? I have gone through 4 PSU's now, went out this morning and got a quality one with surge and overload protection but I am puzzled as to why this keeps happening is it bad wiring in my house?

EDIT

I have had the computer on all week it has not been switched off so coujld that be why? and how can I prevent this from happening in the future? I wen

 

[Lee2k4]

Right so I found a Belkin one here for £24.99 any good?

8 surge protected sockets with additional phone/fax/modem protection (relevant cables included).

Unique 180 degree rotating socket design and large AC blocked space for those oversized power supplies to prevent them covering unused sockets.

75,000 amp.

2m heavy duty cable.

UK - £175,000 connected equipment warranty.

ROI - 275,000 connected equipment warranty.

Manufacturer's lifetime warranty

The higher the Amp does that mean the more surge it can take? Also if I do get a surge whilst my equipment is plugged into this thing does that mean I have to buy another surge protector?