标准摘要
[中文适用范围]： 本标准适用于疏通机（drain cleaners）。 [外文原描述]： Deals with the safety of tools which the rated voltage is not more than 250 V for single-phase a.c. or d.c. tools and 440 V for three-phase a.c. tools. Supplements or modifies the corresponding clauses of IEC 60745-1 This consolidated version consists of the first edition (2002) and its amendment 1 (2008). Therefore, no need to order amendment in addition to this publication.
英文名称Hand-held motor-operated electric tools - Safety - Part 2-21: Particular requirements for drain cleaners