| 摘要 |
An electrical timer device (28) for installation in a building (26) for regulating the supply of electricity to electrical wiring (30, 31) of the building. The timer device includes timing means to switch on or off the supply of electricity to the electrical wiring at intervals during the day. The timer device, when installed, may visually appear to be a conventional wall mounted switch for controlling, for example, overhead lighting (32). |
