[suicideneil]

I just looked at the circuit breaker/fuse box in my flat:-

1 switch for all the lights
2 switches for all the plug sockets
1 switch for the oven (400v cicuit rather than 240v)
1 switch for the smoke alarm
1 switch for the electric shower
1 switch for immersion heater in the hot water tank

So, it is indeed rather tricky to pick specific areas you want to power down.