An electricity supply to a detached garage, outdoor workshop or greenhouse requires a separate circuit of 20A or 30A current rating. The circuit can be from a fuseway in the existing consumer unit with a double-pole 30A switch fixed near the consumer unit. If there is no spare fuseway it is necessary to install a…
Fuses the fuses of various current rating have different physical dimensions (except the 15A and 20A which are of identical size) which prevents, say, a 5A cartridge being replaced by one of higher current rating, on 03 bath There are two types of circuit fuses, rewirable fuses containing ordinary fuse wire, and cartridge fuses. The…
Some appliances need to be wired direct into the domestic supply. These include items such as showers, immersion heaters and cookers. Instant showers A shower unit has an electrical loading of either 6kW or 7kW and therefore requires a circuit of 30A current rating, since the current demand is 25 or 29 amps respectively. The…
It is a fairly simple job to convert a single 13A socket outlet to a double. Materials required: One 13A double socket outlet. One plastic two-gang surface mounting box. A short length of green/ yellow PVC sleeving. Surface to surface conversion Turn off the main switch. Release the existing single socket from its box and…
The modern rocker-operated 5A lighting switch is a square plateswitch containing 1, 2, or 3 switches on the one plate and has two screw holes for fixing to the lugs of a one-gang plastic shallow surface box or a metal plaster-depth flush box. Each box contains an earth terminal to which is connected the sleeved…
The modern ceiling rose has three terminal banks arranged in-line plus an earth terminal. One outer bank has three terminal screws, two for the neutral feed wires, the other for the blue flex wire. The other outer bank has two terminal screws, one for the circuit switch wire, the other for the brown flex wire….
Cables used for home wiring are mainly twin and earth PVC flat sheathed cables containing one red and one black PVC insulated conductor and one uninsulated earth conductor. The red conductor is used in the live pole of the circuit, the black in the neutral pole. (The black conductor is also used in the live…
The mains electricity supply in a house or flat is in two parts. First the electricity board’s apparatus comprising the service fuse unit, the meter to register the electricity consumed, and, where night storage heating is installed, a time switch. This apparatus is sealed and must not be tampered with. You are responsible for any…
All too often lighting is limited to a single dangling bulb and lampshade; yet it has an enormously important and all-pervading effect on your house. No matter how good your decorating is, if the light is bad a room will look uninteresting. Good lighting can transform a very ordinary setting. What is good lighting then?…
Electric fires take a heavy load and should be fused accordingly, with a 13 amp. Fuse in a fused plug. The element in a fire is a coiled piece of wire with a high resistance. When a current flows through it, it glows. In the simplest one or two bar fire, each element is made…