Household comfort depends on an adequate number of electrical circuits
In order to operate important household appliances like the washing machine and the dryer at the same time it is essential to wire them separately. This means that each machine needs a separate miniature circuit breaker (MCB) and also its own electrical circuit.
If washing machine and dryer were to be connected to the same electrical system it could quickly become overloaded. The fuse would be activated, isolating the circuit and the machines from the mains supply.
On wash day you wouldn’t be able to wash and dry clothes at the same time. Using other appliances together, like the microwave and the water heater, would cause similar problems. The cost of fitting separate circuits for specific machines is not high, especially in relation to the total cost of the system, and it ensures safety and long-term optimal performance for the whole electrical installation.