BS 4491-2.1(1990) : 1990被替代
APPLIANCE COUPLERS FOR HOUSEHOLD AND SIMILAR GENERAL PURPOSES - SPECIFICATION OF REQUIREMENTS FOR INDIVIDUAL TYPES OF COUPLER - SEWING MACHINE COUPLERS
出版：British Standards Institution
专家解读视频
基本信息
标准编号： BS 4491-2.1(1990) : 1990
标准类别：Standard
出版单位：British Standards Institution
标准页数：0
标准简介
Describes special purpose appliance couplers for household sewing machines for a.c. only. The sewing machine couplers may include two or more contacts depending on the control components or circuitry required to operate the sewing machine and may be with or without earthing contact.
替代本标准的新标准
