IEC 60335-2-64:2021 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 60335-2-64:2021版4.0和之前的IEC 60335-2-64:2002+AMD1:2007+AMD2:2017 CSV版3.2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 60335-2-64:2021涉及电动商用厨房机器的安全，对于连接在单相和中性之间的单相电器，其额定电压不超过250 V，对于其他电器，包括直流供电电器和电池供电电器，其额定电压不超过480 V。 这些电器不用于家用和类似用途。它们用于不对公众开放的区域的食品商业加工，例如在餐馆、食堂、医院的厨房和商业企业如面包店和肉店。厨房机器的例子有 -混合器； -液体或食物搅拌器； -捏合机； -搅拌器； -碎纸机； -刨丝器； -绞肉机； -切片机； -削皮器； -开罐器； -咖啡研磨机； -用于洗涤和/或干燥食物的机器； -分割机； -糕点滚筒； -面条条切割器； -食品加工机； -光束混合器。 本标准也适用于为了便于运输而以若干部件（子组件）供应的器具，这些部件在安装地点组装时形成一个结构单元，而不使用任何附加部件。 利用其他形式能量的电器的电气部分也在本标准的范围内。 在可行的情况下，本标准涉及这些类型的器具带来的常见危害。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、负责劳动保护的国家当局、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 -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）； -连续大规模生产食品的器具； -独立的输送设备，如食品分配带。 本第四版取消并取代2002年出版的第三版，修正案1:2007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: a)文本已与IEC 60335-1:20 20保持一致； b)一些注释已转换为规范性文本、修改或删除（1、7.12、9.101、10.1、11.7、15.3、20.2、20.116、20.117、20.117.2、20.117.3、20.119、22.101、23.3、27.2）； c）对一些试验质量标准进行了澄清（9.101、15.1.1、15.2、22.113）； d)排除在向公众开放的区域使用的器具（第1条）； e)澄清电池供电设备的要求（第1、11.7、B.3.1.1、B.11.1条）； f)将清洁说明从7.12.1重新定位到7.12； g)IEC 60335-2-64文本与IEC/TC61/MT32下的其他标准的协调。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 60335-2-64:2021 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 60335-2-64:2021 edition 4.0 and the previous IEC 60335-2-64:2002+AMD1:2007+AMD2:2017 CSV edition 3.2. Futhermore, comments from IEC TC 61 experts are provided to explain the reasons of the most relevant changes.

IEC 60335-2-64:2021 deals with the safety of electrically operated commercial kitchen machines, their rated voltage being not more than 250 V for single phase appliances connected between one phase and neutral, and 480 V for other appliances including direct current (DC) supplied appliances and battery operated appliances.
These appliances are not intended for household and similar purposes. They are used for commercial processing of food in areas not open to the public, for example in kitchens of restaurants, canteens, hospitals and in commercial enterprises such as bakeries and butcheries.
Examples of kitchen machines are
– mixers;
– liquid or food blenders;
– kneaders;
– beaters;
– shredders;
– graters;
– mincers;
– slicers;
– peelers;
– tin openers;
– coffee grinders;
– machines used for washing and/or drying food;
– portioning machines;
– pastry rollers;
– noodle strip cutters;
– food processors;
– beam mixers.
This standard also applies to appliances which, in order to facilitate transport, are supplied in several parts (sub-assemblies) which, when assembled at the place of installation, form a constructional unit without the use of any additional parts.
The electrical part of appliances making use of other forms of energy is also within the scope of this standard.
As far as is practicable, this standard deals with the common hazards presented by these types of appliances.
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, the national water supply authorities and similar authorities.
This standard does not apply to
– 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 for continuous mass production of food;
– independent conveying equipment, such as food distribution belts.
This fourth edition cancels and replaces the third edition published in 2002, Amendment 1: 2007 and Amendment 2:2017. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) the text has been aligned with IEC 60335-1:2020;
b) some notes have been converted to normative text, modified or deleted (1, 7.12, 9.101, 10.1, 11.7, 15.3, 20.2, 20.116, 20.117, 20.117.2, 20.117.3, 20.119, 22.101, 23.3, 27.2);
c) clarifications to some test specifications have been made (9.101, 15.1.1, 15.2, 22.113);
d) exclusion of appliances used in areas open to the public (Clause 1);
e) clarification of requirements for battery-operated appliances (Clause 1, 11.7, B.3.1.1, B.11.1);
f) relocation of cleaning instructions from 7.12.1 to 7.12;
g) conciliation of the text of IEC 60335-2-64 with other standards under IEC/TC61/MT32.
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.