Why are there different circuits in houses?
Generally, there is a different circuit for lighting, heating and other electrical appliances. Generally, there is a different circuit for lighting, heating and other electrical appliances. If all household appliances used the same circuit there would simply not
be enough power. For example, the electricity delivered to household appliances
is AC 240V, 10A and the power is 2400W. Heaters use roughly 1000W, meaning
there would not be nearly enough for all other household appliances. There are a number of circuits in a house that are designed to
carry a maximum current, each with a fuse in the active wire. There are circuits for light outlets, power outlets, the stove and the hot-water system that
are separate from each other. Each circuits’ outlet is connected in parallel, meaning they all have the same amount of power. Not all houses have four or more different circuits, but every household has a minimum of two circuits;
for lights and power points. All circuits have wires of different thickness
designed to carry different amounts of current. For example, light circuits normally carry
around 8 amps whereas power circuits are designed to carry twice as much.