电动手持式工具、可运输工具、草坪和花园机械.安全.第2-7部分:手持式喷枪的特殊要求

[中文适用范围]： 本国际标准涉及电动或磁驱动的安全：手持工具（IEC 62841-2）；便携式工具（IEC 62841-3）；草坪和园艺机械（IEC 62841-4）。上述类别在下文中称为“工具”或“机器”。单相交流或直流工具的额定电压不超过250V，三相交流工具的额定电压不超过480V。额定输入功率不超过3700W。本标准对电池工具的适用性限制见K.1和L.1。本标准涉及工具在正常使用和合理可预见的误用中可能对人员造成的危险。带有电加热元件的工具也在本标准的范围内。对未与电源隔离且基本绝缘不设计用于工具额定电压的电机的要求见附录B。对可充电电池供电的电动或磁驱动工具及其电池组的要求见附录K。对还可直接从电源或非隔离源操作和/或充电的此类工具的要求见附录L。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的手持电动工具也在本标准的范围内，并且这种手持工具和支架的组合被视为便携式工具，因此由相关第3部分涵盖。本标准不适用于：用于爆炸性环境（粉尘、蒸汽或气体）的工具；用于制备和加工食品的工具；医疗用途的工具；用于化妆品或药品的工具；加热工具；电动家用和类似电器；工业机床的电气设备；用于模型制作的小型低压变压器操作台工具。在美国，本标准适用于根据国家电气规范NFPA 70在非危险场所使用的工具。在加拿大，本标准适用于根据加拿大电气规范第1部分CSA C22.1和第2部分CAN/CSA-C22.2 No. 0在非危险场所使用的工具。本文件适用于不可燃材料的手持喷枪。 [外文原描述]： IEC 62841-2-7:2024 EXV contains both the international standard and its extended version (EXV). This extended version of the official IEC Standard is available in English only and provides the user with a comprehensive content of the Standard. IEC 62841-2-7:2024 EXV includes the content of the references made to IEC 62841-1:2014. IEC 62841-2-7:2024 deals with the safety of electric motor-operated hand-held spray guns for non-flammable materials. 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 Part 2-7 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.