| 摘要 |
Programmable safety electrical socket controller apparatus (10) for controlling operation of an electrical socket (12) by distinguishing between an actual electrical load and a false load created by human contact, thereby substantially eliminating the risk of electrocution. The controller (10) initially operates in a standby mode wherein the rated voltage of the electrical power system (N, L) is effectively disconnected from the socket terminals (14). A data value group representing the electrical characteristics of the connected load is obtained at safe voltage levels and these are examined by a microprocessor (25), in which there is stored a set of electrical characteristics based on known physiological data relating to the human body. By comparison of the data value group with the stored characteristics, the microprocessor (25) is able to determine whether any of the data value group parameters are inconsistent with those of an actual electrical load, before applying electrical system power in an energization mode, thus reducing hazards caused by accidental contact of a human being After it has been determined that an actual load is connected and power has been applied, additional protection is provided in the energization mode against leakage current conditions, overload overvoltage, and overheating. Remote communication and monitoring functions are also provided. |
