rotection against electric shocks;Ratings;Safety;Safety engineering;Safety requirements;Specification (approval);Strength of materials;Testing;Tools【摘要】: Deals with the safety of hand-held motor-operated or magnetically driven tools, specifically hammers.The rated voltage of the hammers is not more than 250 V for single-phase a.c. or d.c., and 440 V for three-phase a.c. tools. Tools covered by this standa【中国标准分类号】: K64【国际标准分类号】: 25_140_20【页数】: 38P;A4【正文语种】: 英语 | 欢迎光临 世界资料网论坛 (http://bbs.infoeach.com/) | Powered by Discuz! X2.5 |