IEC 60335-2-4:2021可用作:；IEC 60335-2-4:2021 RLV；包含国际标准及其红线版本，显示与前一版本相比技术内容的所有变化。IEC 60335-2-4:2021涉及独立电动旋转提取器和旋转提取器的安全性，旋转提取器包含在洗衣机中，洗衣机具有单独的容器，用于家用和类似用途，容量不超过10kg干布和滚筒圆周速度不超过50 m/s，单相设备的额定电压不超过250 V，其他设备的额定电压不超过480 V。不用于正常家用但可能对公众造成危险的器具，如用于商店、轻工业和农场的外行使用的抽纱机，以及用于公寓楼或洗衣房公用的抽纱机，均在本标准的范围内。 在可行的情况下，本标准涉及家庭内外所有人员所遇到的电器的常见危险。 提请注意以下事实: -对于拟用于车辆或船舶或飞机上的装置，可能需要附加要求； -在许多国家，国家卫生当局、负责保护劳工的国家当局、国家供水当局和类似当局规定了额外的要求。 本标准不适用于: -专用于工业用途的器具； -拟在特殊条件下使用的设备，如存在腐蚀性或爆炸性环境（灰尘、蒸汽或气体）。 第七版取消并取代2008年发布的第六版，修订版1:2012和修订版2:2017。本版为技术修订版。 本版本包括与前一版本相比的以下重大技术变更: -将文本与IEC 60335-1，第5版及其修改件1和2对齐； -替换可触及部件的术语定义，包括测试探针18； -增加测试探针18，以便于接近带电部件。 本第2部分将与IEC 60335-1:2010第五版及其修订版一起使用。

IEC 60335-2-4:2021 is available as;IEC 60335-2-4:2021 RLV;which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60335-2-4:2021 deals with the safety of stand-alone electric spin extractors and spin extractors incorporated in washing machines that have separate containers for washing and spin extraction for household and similar purposes that have a capacity not exceeding 10 kg of dry cloth and a drum peripheral speed not exceeding 50 m/s, their rated voltages being not more than 250 V for single-phase appliances and 480 V for other appliances. Appliances not intended for normal household use but which nevertheless may be a source of danger to the public, such as spin extractors intended to be used by laymen in shops, in light industry and on farms, and spin extractors for communal use in blocks of flats or in launderettes, are within the scope of this standard. As far as is practicable, this standard deals with the common hazards presented by appliances which are encountered by all persons in and around the home. Attention is drawn to the fact that: - for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements can be necessary; - in many countries, additional requirements are specified by the national health authorities, the national authorities responsible for the protection of labour, the national water supply authorities and similar authorities. This standard does not apply to: - appliances intended exclusively for industrial purposes; - appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas). This seventh edition cancels and replaces the sixth edition published in 2008, Amendment 1:2012 and Amendment 2:2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - aligns the text with IEC 60335-1, Ed 5, and its Amendments 1 and 2; - replacement of the term definition of accessible part to include test probe 18; - addition of test probe 18 for accessibility of live parts. This part 2 is to be used in conjunction with the fifth edition of IEC 60335-1:2010 and its amendments.