家用和类似用途电器的安全第2-28部分:缝纫机的特殊要求

[中文适用范围]： 本部分IEC 60335涉及家用和类似用途电动缝纫机的安全性，其额定电压不超过单相设备250V和其他设备480V，包括直流供电设备和电池供电设备。包缝机和电气组件也在本标准范围内。不适用于正常家用但可能对公众造成危险的设备，如商店和轻工业中供外行使用的缝纫机，也在本标准范围内。本标准尽可能处理所有人在家中及周围遇到的设备常见危险。但通常不考虑：由于身体、感官或精神能力或缺乏经验和知识而无法在没有监督或指导的情况下安全使用设备的人（包括儿童）；儿童玩耍设备。注意：用于车辆、船舶或飞机上的设备可能需要额外要求；许多国家卫生部门、劳动保护部门等可能规定额外要求。本标准不适用于：专为工业用途设计的设备；用于特殊条件场所（如腐蚀性或爆炸性环境）的设备。 [外文原描述]： IEC 60335-2-28:2021 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. IEC 60335-2-28:2021 deals with the safety of electric sewing machines 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. Overlock machines and electrical sets are within the scope of this standard. Appliances not intended for normal household use, but that nevertheless can be a source of danger to the public, such as sewing machines intended to be used by laymen in shops and in light industry, 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 - appliances intended 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). This fifth edition cancels and replaces the fourth edition published in 2002 and Amendment 1:2008. 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 (Clause 1, 11.7, 22.14, 22.101); c) clarification of requirements for battery-operated appliances (Clause 1, 3.1.9, 11.7, B.11.1); d) introduction of limits on the temperature rise of external accessible surfaces (Clause 11); e) application of test probe 19 has been introduced (8.1.1, 20.2). 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.