Uk fuse box explained. Say the calculated fuse rating is 49431 amps use a 5 amp fuse. All homes have a fuse box otherwise known as a consumer unit. Fuse boxes for homes play a crucial role in helping to prevent electric shocks and electrical fires. Say the calculated fuse rating is 22679 amps use a 3 amp fuse.
Fuse dimensions cartridge fuses. Blade fuses are sometimes physically difficult to pull out but most vehicles come with a fuse puller tool that is located inside one of the fuse boxes or attached to a fuse box lid. View all approval markings. Consequently the fuse used for this cable fuse 1 will be of a higher rating than fuses 2 5 see below for selecting a fuse rating.
It is our homes electrical hub as it controls and distributes the electricity around the home. Each of the four circuits supplying the loads are then fused individually in the fuse box at the beginning of each circuit and before the switches. This is important because if a section of cable shorts to. Fuse wire is commonly supplied to consumers as short lengths of 5 a 15 a and 30 a rated wire wound on a piece of cardboard.
While any home built around 1960 or later has a service panel full of circuit breakers panels in older houses used fuses to provide over current protection for the household circuits. Your fuse box is your first point of call if you need to turn your electricity off in an emergency. A fuse board monitors and detects the current in each circuit and will trip the system if it is being overloaded to protect the premises and its occupants. Learn about fuse speed markings.
Fuse boxes united kingdom. In the uk older electrical consumer units also called fuse boxes are fitted either with semi enclosed rewirable fuses or cartridge fuses. Use the next highest fuse rating after the calculation. New use whatprice to find a tradesman for all your home electrical work from fuseboxes to full home rewiring.
Fuse rating wattsvolts x 125. Fuses may be found in place of circuit breakers rewirable fuses have a piece of special fuse wire running between two screws. Your fuse box explained. When a fault or overload current flows through the fuse wire it will become hot and melt.
Bigger installations may use a distribution board instead of a consumer unit. A fuse box is a type of electrical service panel which is a sort of control board for the entire electrical system of a house. 10 x 38 mm search for fuses using dimensions.