Them that own the marina I am moored in have been buggering around with the electrics on the pontoons. Upshot is several peoples TV's have popped and are now dead as have a couple of battery chargers and some immersion heaters (which seems odd). This is in the UK on 230v Single Phase AC.

This all got me looking for some sort of Surge Protector that I thought might plug into the shore cable or even a surge protected cable.

Alas Mr Google has thrown up little useful.

Anyone had similar happen or indeed know of such a protection device for our boats