i think, the accurate way is to look at the current (ampere). If it is above 13A, your plug fuse will burn. If it is not burn, the DB fuse will switch off. If it doesn't switch off, the house will be on fire...

So, current (A) = power (Watt)/ voltage (240V).

Add up all current consumption from each appliance in order to see whether it is overloaded or not.


By the way, please don't take my word. I'm hoping someone can tell me whether what i'm saying is right or not..