家用和类似用途电器.安全.第2-40部分:电热泵、空调和除湿器的特殊要求

[中文适用范围]： IEC 60335-2-40 标准处理电热泵、卫生热水热泵、带电机压缩机的空调器、除湿机（带或不带电机压缩机）、热电热泵和部分单元的安全性。其额定电压限制为单相设备不超过300 V，多相设备不超过600 V。适用于普通家庭使用，但也包括可能威胁公众安全的设备，如商店、轻工业和农场中由非专业人士使用的设备。标准涵盖的制冷剂仅限于ISO 817定义的A1、A2L、A2和A3组，且易燃制冷剂的摩尔质量基于WCF（最坏情况配方）大于或等于42 kg/kmol。 [外文原描述]： IEC 60335-2-40:2022 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 multi-phase 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 laymen 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. This document 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 document 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 prescribe the criteria to ensure competence of persons during installation, servicing and disposal. Safety requirements during disposal are not specified in this standard. 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 document 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 seventh edition cancels and replaces the sixth edition published in 2018. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - Clause 1: added thermoelectric heat pumps to the scope and increased maximum rated voltage to 300 V for single phase appliances; - Clause 7: revised requirements for marking on the appliance and packaging, including a symbol for minimum floor area and modifying the symbol for flammable refrigerants to include the safety group per ISO 817; - Clause 11 and Clause 19: restructured for alignment with Part 1 and added requirements for supplementary air heaters; - Clause 13 and Clause 16: revised requirement for leakage current for stationary class I motor-operated appliances; - Clause 21: added requirements for particle foam material and revised requirements for transport testing; - Clause 22: removed limit on the sum of refrigerant charges for appliances with multiple refrigerating systems, and revised requirements for avoiding ignition sources, leak detection systems, safety shut-off valves, and particle foam material; - Clause 23: added requirements to avoid contact between wires and refrigerant piping; - Clause 24 The content of the corrigendum 1 (2024-10) has been included in this copy.