To be honest i am not sure on the regulations you have to work with but i can explain mine...
First up any wiring that is new to a property as to be certified for the property , replacing excising can be done by a home owner
each area of the house is on a separate ring so upstairs lights ,downstairs lights, up sockets ,down sockets, bathroom with shower having its own ,kitchen with oven having its own,appliances are on a fused socket of their own, and all run on a separate RCD (An RCD, or residual current device, is a life-saving device which is designed to prevent you from getting a fatal electric shock if you touch something live, such as a bare wire. It can also provide some protection against electrical fires.)
Then any out door power would run to a RCD borad of it's own like i have in the shed ect.
I play it safe and even my utility room as it's own RCD , in short we slap a power breaker to cover all areas of what could happen....any thing with water is a nightmare when attached to electrics.
I think your the same we just call it by a different name....just translate it to proper English and i can help more
PS...washers,dryers, fridges and freezers and the most common causes of house fires so taking steps to the max in these areas really does pay off.