IEC 60335-2-79:2021作为IEC 60335-2-79:2021 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。IEC 60335-2-79:2021涉及无牵引驱动的高压清洗机的安全性，用于家用和商用室内或室外，额定压力不低于2.5 MPa且不超过35 MPa。它还适用于蒸汽清洁器和装有蒸汽级的热水高压清洁器的部件，其容量不超过100L，额定压力不超过2.5 MPa，容量和额定压力的乘积不超过5MPa·l。它们没有配备牵引传动装置。包括高压泵驱动器的以下动力系统:-对于单相机器，额定电压高达250 V，对于其他机器，额定电压高达480 V的市电供电电机， -电池供电的电动机， -内燃机， -液压或气动马达。 本标准不适用于: -额定压力超过35MPa的高压水射流机； -家用液体或蒸汽清洁器（IEC 60335-2-54）； -手持式和便携式电动工具（IEC 60745系列、IEC 61029系列、IEC 62841系列）； -医疗器械（IEC 60601）； -农用喷雾器(ISO 4254-6)； -非液体固体磨料清洁剂； -设计为生产过程一部分的机器； -设计用于腐蚀性或爆炸性环境（粉尘、蒸汽或气体）的机器； -设计用于车辆或船舶或飞机上的机器。这第五版取消并取代了2016年出版的第四版。它构成技术修订。 与上一版相比，此版本包括以下重大技术变更（未列出次要变更）: -编辑和技术符合IEC 60335-1:20 20； -澄清手持式和电池供电高压清洗机； -一般编辑改进。 本第2部分应与最新版本的IEC 60335-1及其修正案一起使用。它是在该标准第六版（2020年）的基础上建立的。

IEC 60335-2-79:2021 is available as IEC 60335-2-79:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60335-2-79:2021 deals with the safety of high-pressure cleaners without traction drive, intended for household and commercial indoor or outdoor use, having a rated pressure not less than 2,5 MPa and not exceeding 35 MPa. It also applies to steam cleaners and those parts of hot water high pressure cleaners incorporating a steam stage which have a capacity not exceeding 100 l, a rated pressure not exceeding 2,5 MPa and a product of capacity and rated pressure not exceeding 5 MPa·l. They are not equipped with a traction drive. The following power systems of the drive for the high pressure pump are covered:
- mains powered motors up to a rated voltage of 250 V for single-phase machines and 480 V for other machines,
- battery-operated motors,
- internal combustion engines,
- hydraulic or pneumatic motors.
This standard does not apply to:
- high pressure water jet machines having a rated pressure exceeding 35 MPa;
- liquid or steam cleaners intended for domestic use (IEC 60335-2-54);
- hand-held and transportable motor-operated electric tools (IEC 60745 series, IEC 61029 series, IEC 62841 series);
- appliances for medical purposes (IEC 60601);
- agricultural sprayers (ISO 4254-6);
- non-liquid, solid abrasive cleaners;
- machines designed to be part of a production process;
- machines designed for use in corrosive or explosive environments (dust, vapour or gas);
- machines designed for use in vehicles or on board of ships or aircraft.
This fifth edition cancels and replaces the fourth edition published in 2016. It constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition (minor changes are not listed):
- editorial and technical alignment with IEC 60335-1:2020;
- clarification on hand-held and battery-operated high pressure cleaners;
- general editorial improvements.
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its amendments. It was established on the basis of the sixth edition (2020) of that standard.