摘要
低压断路器国际标准IEC60947-2 1998年第二版后,经No1,No2修正件修改,于2003年4月出版了第三版,内容有了较大的变化与补充,特别是补充了附录J、L、M、N,其中附录J、N对断路器的电磁兼容(EMC),包括断路器的过电流保护和各种附件的要求和试验方法作了规定。
After the Second Edition in 1998, Low Voltage Circuit Breaker International Standard IEC 60947-2, with amendments and revisions to No1, vo11, No2, Vo12, the third edition was published in April 2003. There were great changes and suplemantaries in the contents, especially added in Appendix J, L, M, and N, amongst Appendix J, N, regulations were made for the electro magnetic compatibility(EMC)of circuit breakers, including circuit breaker's over current protection and requirements for various accessaries and new test methods.
