Electrical DIY Work

SAFETY PRECAUTIONS 1 Electricity can kill. Treat it with respect. 2 If unsure about the safety of any equipment, consult an electrician. 3 Remove plugs before examining equipment and switch off at the mains before working on fixed equipment. 4 Do not overload circuits by using too many adaptors. 5 Do not use wall switches…

Wiring a ring circuit

Wiring a ring circuit

A ring circuit is a multi-outlet power circuit which may supply an unlimited number of 13-amp plugs, socket outlets and fixed appliances but is limited to supplying an area not exceeding 1000 sq ft (100 sq. m). Where the floor area exceeds this, more than one ring circuit is necessary. It is wise to install…

Repairing and Maintaining Refrigerators and Freezers

Repairing and Maintaining Refrigerators and Freezers

Refrigerators and freezers are designed to keep perishable foods for varying lengths of time by storing them under suitable conditions and at the right temperature. The appliances work by means of a liquid refrigerant flowing through tubes which vapourizes into a gas and absorbs the heat from its surroundings — the freezing unit and refrigerator;…

Storage fan heaters

Storage fan heaters

A storage fan heater resembles in appearance a storage radiator, but it is generally larger and has an inlet and outlet grille. The fan heater is normally of a higher loading and contains a tangential fan. This draws in cold air which passes through ducting in the storage casing and over the storage blocks, where…

Wiring a converted loft

Wiring a converted loft

Extending existing electrical wiring into the roof space to allow extra lighting points and socket outlets is generally similar to wiring extensions in other parts of the house. Switches, ceiling roses, socket outlets and other wiring accessories can be similar to those used in other parts of the house. They will usually be made of…

Types Of Time Switches

Types Of Time Switches

The conventional vacuum-operated time lag switch – used with stair and corridor lighting to save electricity – will operate for up to five minutes, but can be dangerous to stair users because it gives no warning before cutting out. The control, which can also be fitted in place of any square-plate switch, comes in a…

How To Fit Dimmer Switches

How To Fit Dimmer Switches

The dimmer is an electronic device which contains a semi-conductor, associated components and a TV suppressor. But unlike the old resistor dimmer, which consumed unwanted wattage and became very hot, the modern version does not use a significant amount of electricity and can be regarded as an energy saver. These switches have been designed to…

Wiring up sockets

Wiring up sockets

Electricity can be supplied where you want it, as long as you have enough outlets. You can install new power points or move existing ones yourself. Having done all the non-electrical work such as lifting boards, channelling plaster to take cables, or cutting recesses for the new knock-out boxes and installing them, it is time…

Wiring plugs

Wiring plugs

Probably the most common electrical job in the home is wiring a plug. It is crucial that the right core is fitted to the right terminal and that all connections are tight. Houses that have been wired or rewired in Britain since 1947 will be fitted with ring main circuits. These are continuous loops of…

Joining flex

One of the real dangers involving electricity is the joining up of flex, which can be a fire hazard. If you really have to do this job, always use a proper connector and check you have wired it up in the correct way. Whenever possible avoid joining flex. If you have to, always use a…

Stripping cable and flex

There are certain basic rules you must remember before you start to strip flex or cable for connecting to a plug or appliance or for wiring power or lighting circuits. Remove only sufficient insulation to enable the cores to be connected to the terminals; none of the bared wires should be exposed. Don’t stretch the…

Repairing fuses

When electric current passes through a wire it causes heating: the thinner the wire the greater the heat. Even the thick wire used in domestic wiring will overheat if too much current passes through it — and may easily set the house on fire. To prevent this, a fuse is built into every circuit. This…