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根据国机科[1998]117号文批准，发布如下标准（标准实施日期1998-09－01）JB／T8730－1998（CJT系列交流接触器）根据国机科[1998]128号文批准．发布加下标准（标准实施日期1998-12－01）JB8749－1998调压器通用技术要求（代替ZBK42001－87）JB／T8750－1998电控设备用变压器JB
According to the State Bureau of Machinery [117] No. 117 approved, promulgated the following standards (Standard Implementation Date 1998-09-01) JB / T8730-1998 (CJT series AC contactor) according to the National Engineering Branch [1998] No. 128 approved. Publish Standard Added (Standard Implementation Date 1998-12-01) JB8749-1998 General technical requirements for voltage regulator (instead of ZBK42001-87) JB / T8750-1998 Transformers for electronic control equipment JB