IEC 60335-2-24:20 20 CMV包含官方标准及其注释版本。注释版本为您提供了一种快速简单的方法来比较IEC 60335-2-24:20 20版8.0和上一版IEC 60335-2-24:20 0+AMD1:2012+AMD2:2017 CSV版7.2之间的所有更改。此外，还提供了IEC TC 61专家的意见，以解释最相关变更的原因。 IEC 60335-2-24:20 20涉及以下电器的安全性，其额定电压对于单相电器不超过250 V，对于其他电器不超过480 V，对于电池供电的电器不超过24 V DC: -家用和类似用途的制冷器具； -结合有马达压缩机的制冰机和旨在结合在冷冻食品储藏室中的制冰机；-用于露营、旅游大篷车和休闲船只的制冷设备和制冰机。 这些电器可以从市电、从单独的电池操作，或者从市电或从单独的电池操作。 该标准还涉及家用冰淇淋器具的安全性，单相器具的额定电压不超过250 V，其他器具的额定电压不超过480 V。 它还涉及使用易燃制冷剂的家用和类似用途的压缩型电器。 本标准不包括其他IEC标准中涉及的制冷设备的构造和操作特征。 并非供一般家庭使用但可能对公众构成危险的制冷器具，例如 -商店、办公室和其他工作环境中员工厨房区域使用的制冷器具， -用于农舍和由旅馆、汽车旅馆和其他住宅类型环境中的客户使用的制冷设备， -用于住宿和早餐类型环境的制冷设备，以及 -用于餐饮及类似非零售用途的制冷器具 均在本标准范围内。 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的人（包括儿童）；-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、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 -拟在露天使用的器具； -专为工业用途而设计的器具； -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气氛（灰尘、蒸汽或气体）； -包含电池的电器，该电池旨在用作制冷功能的电源；-由安装人员在现场组装的器具； -带有远程电机压缩机的电器； -电机-压缩机（IEC 60335-2-34）； -商用分配器具和自动售货器具(IEC 60335-2-75)； -带有内置或远程制冷剂单元或电机压缩机的商用制冷设备和制冰机（IEC 60335-2-89）； -专业冰淇淋机（IEC 60335-2-118）。 本第八版取消并取代了2010年出版的第七版、修正案1:20 12和修正案2:20 17。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: -将文本与IEC 60335-1，第5.2版对齐； -一些注释已转换为规范性文本或删除(4、5.2、5.7、7.1、7.6、7.10,7.12,19.1,19.101,19.102,20.101,20.102,20.103,20.104,21,22.7,22.33,22.101,22.102,22.103,22.107,22.108,22.109,30.1); -更新了规范性参考文献和相关文本（2、22.108、22.109，附件CC表102）； -澄清了自由空间的定义（3.6.104）； -包括测量使用逆变器驱动的电机压缩机的制冷设备的输入电流(10.2)； -引入了与不同类型制冷剂和油一起使用的电机压缩机绕组绝缘的兼容性测试（22.9）； -更新了无涂层铝管和铜管之间无意接触点的要求（22.111）； -澄清了可接近玻璃面板的测试（22.116）； -在制冷器具中，引入了材料封装和与隔热材料接触的要求，并删除了相应的案文(22.117、30.2、30.2.10 1，附件EE)； -更新了电机运行电容器的要求（24.5、24.8）； -澄清了风扇电机的锁定转子测试（附录AA）。 本第2部分应与最新版本的IEC 60335-1及其修正案一起使用。它是在该标准第五版（2010年）的基础上建立的。

IEC 60335-2-24:2020 CMV contains both the official standard and its commented version. The commented version provides you with a quick and easy way to compare all the changes between IEC 60335-2-24:2020 edition 8.0 and the previous edition IEC 60335-2-24:2010+AMD1:2012+AMD2:2017 CSV edition 7.2. Futhermore, comments from IEC TC 61 experts are provided to explain the reasons of the most relevant changes.

IEC 60335-2-24:2020 deals with the safety of the following appliances, their rated voltage being not more than 250 V for single-phase appliances, 480 V for other appliances and 24 V DC for appliances when battery operated:
– refrigerating appliances for household and similar use;
– ice-makers incorporating a motor-compressor and ice-makers intended to be incorporated in frozen food storage compartments;
– refrigerating appliances and ice-makers for use in camping, touring caravans and boats for leisure purposes.
These appliances may be operated from the mains, from a separate battery or operated either from the mains or from a separate battery.
This standard also deals with the safety of ice-cream appliances intended for household use, their rated voltage being not more than 250 V for single-phase appliances and 480 V for other appliances.
It also deals with compression-type appliances for household and similar use, which use flammable refrigerants.
This standard does not cover features of the construction and operation of those refrigerating appliances which are dealt with in other IEC standards.
Refrigerating appliances not intended for normal household use but which nevertheless may be a source of danger to the public, such as
– refrigerating appliances used in staff kitchen areas in shops, offices and other working environments,
– refrigerating appliances used in farm houses and by clients in hotels, motels and other residential type environments,
– refrigerating appliances used in bed and breakfast type environments, and
– refrigerating appliances used in catering and similar non-retail applications
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 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 to be used in the open air;
– appliances designed 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);
– appliances incorporating a battery intended as a power supply for the refrigerating function;
– appliances assembled on site by the installer;
– appliances with remote motor-compressors;
– motor-compressors (IEC 60335-2-34);
– commercial dispensing appliances and vending appliances (IEC 60335-2-75);
– commercial refrigerating appliances and ice-makers with an incorporated or remote refrigerant unit or motor-compressor (IEC 60335-2-89);
– professional ice-cream makers (IEC 60335-2-118).

This eighth edition cancels and replaces the seventh edition published in 2010, 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 5.2;
– some notes have been converted to normative text or deleted (4, 5.2, 5.7, 7.1, 7.6, 7.10, 7.12, 19.1, 19.101, 19.102, 20.101, 20.102, 20.103, 20.104, 21, 22.7, 22.33, 22.101, 22.102, 22.103, 22.107, 22.108, 22.109, 30.1);
– normative references and associated text have been updated (2, 22.108, 22.109, Table 102, Annex CC);
– definition of free space has been clarified (3.6.104);
– measurement of the input current of refrigerating appliances using inverter driven motor-compressors is included (10.2);
– compatibility tests for winding insulation of motor-compressors used with different types of refrigerants and oils have been introduced (22.9);
– requirements for inadvertent contact points between uncoated aluminium pipes and copper pipes have been updated (22.111);
– testing of accessible glass panels has been clarified (22.116);
– in refrigerating appliances, requirements for material encasing and in contact with thermal insulation have been introduced and consequential text has been deleted (22.117, 30.2, 30.2.101, Annex EE);
– requirements for motor running capacitors have been updated (24.5, 24.8);
– the locked rotor test for fan motors has been clarified (Annex AA). 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 fifth edition (2010) of that standard.