Fixed Appliance and Socket Circuits:Special Outlets

Special Outlets

Figure 23 illustrates a dual voltage shaver socket. It is the type required for use in bathrooms. It features a double wound safety isolating transformer, which is protected by a self-resetting thermal cut-out. The two socket outlets provide simple voltage selection

Safety shutters are provided. They automatically switch on and off the supply to the double wound transformer. The shutters also prevent two shavers being plugged in at the same time, which would overload the transformer and possibly introduce danger.

Figure 25 illustrates an outlet for connecting an electric clock to the supply. The outlet may be supplied via a lighting circuit or a socket circuit. The clock supply is usually fused at 2 Amps.