低压断路器国际标准IEC60947-2 2003年第三版系列报导(四)--附录M剩余电流装置模块(无内部电流分断装置)(续一)

介绍IEC60947-22003年第三版中新增加的附录M内容.该附录主要规定剩余电流装置模块（无内部电流分断装置）的特性、要求和试验方法.剩余电流装置模块本身不装设分断装置,因为没有触头灭弧系统,但模块有输出讯号,或用作指示漏电,或用于和某种适合的断路器配合使用,就成为剩余电流保护断路器.剩余电流装置模块有传感器（互感器）和处理器（电子电路）两部分,有二者分离的模块,也有二者合一的模块,可根据用户的需要选用.

Low Voltage Circuit Breaker International Standard IEC 60947-2 the Third Edition 2003 Serial Report( Ⅳ ) - Annex M Modular of Residual Current Devices (Without Internal Current Breaking Device)(Continued Ⅰ)

Introduction was made to the contents of newly added Annex M to IEC60947-2 3rd edition 2003. The Annex specifies mainly the features requirements and test methods for modular residual current devices (without internal current breaking device). The modular residual current device itself has not been installed with breaking device due to there is without confacting arc extinguishing system but the modular has signal outputs which is either to be used for current leakage indication or be used together with some appropriate circuit breaker. Thus it becomes residual current protection circuit breaker. The modular residual current device is composed of sensor (transformer) and processors (electronic circuit) two parts, there are modulars with two parts seperated and also with two parts in combination. Modulars can be choosed according to the needs of the users.