IEC 62841-2-21:20 17适用于手持式排水管清洁器（排水管清洁器也称为管道清洁器）单相交流电的额定电压不超过250 V或者华盛顿。工具和480 V三相交流电。工具。额定输入不大于3 700 W。K.1和L.1中给出了本标准对电池工具的适用性限值。本标准涉及所有人员在正常使用和合理可预见的误用工具时遇到的工具带来的危害。手持式电动工具可以安装在支架或工作台上用作固定工具，而无需对工具本身进行任何更改，属于本标准的范围，并且手持式工具和支架的这种组合被认为是可运输工具，因此由相关部分3涵盖。本标准不适用于移动式下水道清洁器。 本标准不适用于使用实心棒清洁排水管的机器。 本第2-21部分应与IEC 62841-1:20 14第一版一起使用。 请国家委员会注意，设备制造商和测试组织在新的、修订的或修订的IEC出版物出版后可能需要一个过渡期，以便根据新的要求制造产品，并为进行新的或修订的测试做好准备。 委员会建议，该出版物的内容应在出版之日起36个月内通过，以便在全国范围内实施。

IEC 62841-2-21:2017 applies to hand-held drain cleaners (drain cleaners are also known as pipe cleaners) the rated voltage is not more than 250 V for single-phase a.c. or d.c. tools, and 480 V for three-phase a.c. tools. The rated input is not more than 3 700 W. The limits for the applicability of this standard for battery tools are given in K.1 and L.1. This standard deals with the hazards presented by tools which are encountered by all persons in the normal use and reasonably foreseeable misuse of the tools. Hand-held electric tools, which can be mounted on a support or working stand for use as fixed tools without any alteration of the tool itself, are within the scope of this standard and such combination of a hand-held tool and a support is considered to be a transportable tool and thus covered by the relevant Part 3.
This standard does not apply to transportable drain cleaners.
This standard does not apply to machines that use a solid rod to clean drains.
This Part 2-21 is to be used in conjunction with the first edition of IEC 62841-1:2014.
The attention of National Committees is drawn to the fact that equipment manufacturers and testing organizations may need a transitional period following publication of a new, amended or revised IEC publication in which to make products in accordance with the new requirements and to equip themselves for conducting new or revised tests.
It is the recommendation of the committee that the content of this publication be adopted for implementation nationally not earlier than 36 months from the date of publication.