家用和类似用途电器 安全 第2-40部分：热泵、空调和除湿机的特殊要求 (IEC 60335-2-40:2024 IDT)

[中文适用范围]： 本部分第1章由以下内容替代。本部分IEC 60335适用于电动热泵、卫生热水热泵及空调设备的安全要求，涵盖带电动压缩机的机型、水系统风盘、除湿机（带或不带电动压缩机）、热电热泵及部分成套机组；其额定电压限制为：单相设备不超过300 V，其他设备（含直流供电设备及电池供电设备）不超过600 V。本标准的适用范围还包括虽非专为普通家庭使用、但仍可能对公众构成危险的器具，例如设计供普通用户、商店、轻工业及农场等场所使用的器具。上述器具可由一个或多个厂制部件组成；若由多个部件构成，则各部件需配合使用，相关技术要求基于匹配部件的组合使用。本标准仅考虑ISO 817所定义的A1、A2L、A2及A3组制冷剂，未涵盖其他制冷剂。易燃制冷剂仅限于摩尔质量≥42 kg/kmol（按ISO 817规定的最不利配方WCF计算）的制冷剂。在可行的范围内，本标准针对正常使用中可能遇到的常见危险，并假定安装、服务、退役及报废等环节均由 competent 人员安全处理，同时避免制冷剂意外释放。但本标准并未规定判定人员在安装、服务及报废过程中胜任能力的标准，亦未规定报废过程中的安全要求。除本部分（含附录）已作规定的要求外，制冷安全相关要求由以下标准覆盖：– ISO 5149-1:2014、ISO 5149-1:2014/AMD1:2015 及 ISO 5149-1:2014/AMD2:2021；– ISO 5149-2:2014 及 ISO 5149-2:2014/AMD1:2020；– ISO 5149-3:2014 及 ISO 5149-3:2014/AMD1:2021。本标准的适用范围包括辅助加热器或为其单独安装预留的接口，但仅限于作为器具整体包组成部分设计的加热器，且其控制装置已集成于器具之中。本标准的适用范围不包括：– 用于加热与制冷设备的加湿器（IEC 60335-2-88）；– 专为工业加工设计的器具；– 用于存在特殊条件场所的器具，例如存在腐蚀性或爆炸性环境（粉尘、蒸气或气体）。 [外文原描述]： IEC 60335-2-40:2024 deals with the safety of electric heat pumps, sanitary hot water heat pumps and air conditioners, incorporating motor-compressors as well as hydronic fan coils units, dehumidifiers (with or without motor-compressors), thermoelectric heat pumps and partial units, their maximum rated voltage being not more than 300 V for single phase appliances and 600 V for other appliances including direct current (DC) supplied appliances and battery-operated appliances. Appliances not intended for normal household use but which nevertheless can be a source of danger to the public, such as appliances intended to be used by laypersons in shops, in light industry and on farms, are within the scope of this standard. The appliances referenced above can consist of one or more factory-made assemblies. If provided in more than one assembly, the separate assemblies are used together, and the requirements are based on the use of matched assemblies. A definition of ‘motor-compressor’ is given in IEC 60335-2-34, which includes the statement that the term motor-compressor is used to designate either a hermetic motor-compressor or semi-hermetic motor-compressor. Requirements for containers intended for storage of the heated water included in sanitary hot water heat pumps are, in addition, covered by IEC 60335-2-21. This standard does not take into account refrigerants other than group A1, A2L, A2 and A3 as defined by ISO 817. Flammable refrigerants are limited to those of a molar mass of more than or equal to 42 kg/kmol based on WCF (worst case formulation) as specified in ISO 817. As far as practical, this standard deals with common hazards presented by appliances that are encountered in normal use and assumes that installation, servicing, decommissioning, and disposal are safely handled by competent persons and accidental release of refrigerants is avoided. However, it does not specify the criteria to ensure competence of persons during installation, servicing and disposal. Safety requirements during disposal are not specified in this standard. Annex HH provides informative requirements on competence of personnel. Criteria for competence of personnel for the purpose of certification schemes can be found in ISO 22712. Unless specifications are covered by this standard, including the annexes, requirements for refrigerating safety are covered by: – ISO 5149-1:2014, ISO 5149-1:2014/AMD1:2015, and ISO 5149-1:2014/AMD2:2021, – ISO 5149-2:2014 and ISO 5149-2:2014/AMD1:2020, – ISO 5149-3:2014 and ISO 5149-3:2014/AMD1:2021. Supplementary heaters, or a provision for their separate installation, are within the scope of this standard, but only heaters which are designed as a part of the appliance package, the controls being incorporated in 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, for example, by the national health authorities responsible for the protection of labour and the national authorities responsible for storage, transportation, building constructions and installations. This standard does not apply to – humidifiers intended for use with heating and cooling equipment (IEC 60335-2-88); – appliances designed exclusively for industrial processing; – 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 eighth edition cancels and replaces the seventh edition published in 2022. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Clause 12 : Part 1, Clause 12 has been made applicable; b) Clause 19: requirement added for double wall heat exchangers to be resistant against freezing; c) Clause 20: requirement modified for when to apply test probe 18; d) Clause 21: requirement added for double wall heat exchangers to resistant against the pressure of the refrigerant if one of the walls fails; e) Clause 22: requirement modified to reflect that appliances can operate continuously and can be operated remotely without giving rise to a hazard, and requirement added for double wall heat exchangers to be constructed to avoid refrigerant leaking into the secondary circuit; f) Annex LL has been deleted and replaced by a reference to IEC TS 63542:2024. 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.