IEC 60335-2-109:2023作为IEC 60335-2-109:2023 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 60335-2-109:2023涉及家用和类似用途的紫外线辐射水处理设备的安全性，单相设备的额定电压不超过250 V，其他设备（包括直流(DC)供电设备和电池供电设备）的额定电压不超过480 V。不打算用于正常家庭使用但可能对公众造成危险的电器，例如打算供商店、轻工业和农场中的外行人使用的电器，都在本标准的范围内。 在可行的情况下，本标准涉及家庭内外所有人都会遇到的电器带来的常见危险。然而，一般来说，它没有考虑到 -身体、感官或精神能力受损的人（包括儿童）；或缺乏经验和知识使他们无法在没有监督或指导的情况下安全使用器具； -儿童在玩电器。 提请注意以下事实: -对于拟用于车辆或船舶或飞机上的器具，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和类似当局规定了额外的要求。 本标准不适用于 -泵(IEC 60335-2-41)； -水族馆用灯具(IEC 60598-2-11)； -游泳池和类似应用用灯具（IEC 60598-2-18); -专供专业人士使用的器具； -拟在有特殊条件的地方使用的器具，例如存在腐蚀性或爆炸性环境（灰尘、蒸汽或气体）。 本第二版取消并取代了2010年出版的第一版、修正案1:20 13和修正案2:20 16。本版构成技术修订版。 与上一版相比，此版本包括以下重大技术变更: a)符合IEC 60335-1:20 20； b)将一些注释修改或转换为规范性文本（第1、6.2、22.102条）； c)引入IEC 60417最大工作深度符号(7.1、7.6、7.12.1)； d)增加外部可接近表面温度限制(11.3、11.8)； e)澄清远程操作的要求(22.40,22.49,22.51); f)删除发出有害辐射的要求，因为它们已在第1部分（第32条）中涵盖。 本第2部分应与最新版本的IEC 60335-1及其修订一起使用，除非该版本排除了本第2部分；在这种情况下，使用不排除它的最新版本。它是在该标准第六版（2020年）的基础上建立的。

IEC 60335-2-109:2023 is available as IEC 60335-2-109:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60335-2-109:2023 deals with the safety of UV radiation water treatment appliances for household and similar use, their rated voltage being not more than 250 V for single-phase appliances and 480 V for other appliances including direct current (DC) supplied appliances and battery-operated appliances. Appliances not intended for normal household use but that nevertheless can be a source of danger to the public, such as appliances intended to be used by laymen in shops and in light industry and farms, are within the scope of this standard.
As far as is practicable, this standard deals with the common hazards presented by appliances that are encountered by all persons in and around the home. However, in general, it does not take into account
- persons (including children) whose physical, sensory or mental capabilities; or lack of experience and knowledge prevents them from using the appliance safely without supervision or instruction;
- children playing with the appliance.
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 and similar authorities.
This standard does not apply to
- pumps (IEC 60335-2-41);
- luminaires for aquariums (IEC 60598-2-11);
- luminaires for swimming pools and similar applications (IEC 60598-2-18);
- appliances intended exclusively for professional use;
- 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 second edition cancels and replaces the first edition published in 2010, Amendment 1:2013 and Amendment 2:2016. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) alignment with IEC 60335-1:2020;
b) modification or conversion of some notes to normative text (Clause 1, 6.2, 22.102);
c) introduction of IEC 60417 symbol for maximum operating depth (7.1, 7.6, 7.12.1);
d) addition of external accessible surface temperature limits (11.3, 11.8);
e) clarification of requirements for remote operation (22.40, 22.49, 22.51);
f) the requirements to emit harmful radiation are deleted, because they are covered in Part 1 (Clause 32).
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its amendments unless that edition precludes it; in that case, the latest edition that does not preclude it is used. It was established on the basis of the sixth edition (2020) of that standard.