Small table cookers and other portable appliances having individual loadings not in excess of 3 kW are run off 13 A fused plugs and socket-outlets. They require no special wiring though extra socket-outlets may be needed in the kitchen when additional electrical cooking appliances are bought. These additional socket-outlets may be served from the ring circuit and spurs.
Family-size cookers, whether free-standing or built-in split-level, need an exclusive circuit from a fuseway of appropriate current rating. Read the rest of this entry »
Where the white meter tariff is in operation it can be an advantage to heat the full contents of a tank overnight when the cheaper rate for electricity is in force and switch on the short element wizen additional hot water is needed.
This normally requires two circuits for the immersion heater installation. One circuit is used for the night rate supply, when time controlled in conjunction with night storage heaters, this supplying the long element of a dual immersion heater or the lower immersion heater of a two- immersion heater arrangement. Read the rest of this entry »
Electric heating of water can be carried out in a variety of ways. These include small capacity heaters fitted above the sink, instantaneous sink heaters or immersion heaters in the hot water tank.
Small storage water heaters fitted over the sink or washbasin having capacities of up to about 3 gallons and electrical loadings of 1 to 3 kW are usually supplied from the ring circuit by means of a spur. Except in a bathroom, the outlet can be a fused plug and switched socket-outlet, preferably with neon indicator. Read the rest of this entry »
