JB 10046-1999 in English

JB 10046-1999本标准是对 ZB K30 002-90《机床电器噪声的限值及其测定》的修订。修订后扩大了适用范围；修改某些产品噪声限值；删除测定方法中不适应部分，明确了常规测定方法。本标准规定了机床电器正常运行中噪声声功率级的限值及其测定方法。本标准适用于交流 50Hz 或 60Hz，额定工作电压 660V 及以下的机电式接触器、电动机起动器、接触器式继电器及交流电磁铁。当单台电器的电磁系统在正常闭合状态下，噪声的极限值及测定方法。本标准不适用于电器的电磁系统闭合或释放量产生的撞击噪声的极限值及测定。

Scope

This standard specifies the limits of noise power levels and their measurement methods during normal operation of machine tool electrical appliances. This standard applies to electromechanical contactors, motor starters, contactor relays and AC electromagnets with AC 50Hz or 60Hz and rated operating voltage 660V and below. When the electromagnetic system of a single electrical appliance is in a normally closed state, the noise limit value and measurement method are given. This standard does not apply to the limit values and determination of impact noise generated by the closure or release of the electromagnetic system of electrical appliances.