家用和类似用途电器的安全第2-55部分:水族馆和花园池塘用电器的特殊要求

[中文适用范围]： 本部分IEC 60335涉及用于家庭及类似用途的水族箱和花园池塘的电动器具的安全，其额定电压不超过250V，包括直流供电设备和电池供电设备。 本标准适用的设备示例包括： - 曝气器； - 水族箱加热器； - 自动喂食器； - 污泥吸取设备。 本标准还包括非家用但可能对公众构成危险的设备，例如商店、轻工业和农场中由非专业人员使用的设备。 本标准尽可能涵盖了家庭及周边环境中常见的电器危险。然而，本标准通常不考虑以下情况： - 由于身体、感官或精神能力不足或缺乏经验和知识，无法在无人监督或指导的情况下安全使用设备的人员（包括儿童）； - 儿童玩耍设备。 本标准不适用于： - 泵（IEC 60335-2-41）； - 其他便携式浸入式加热器（IEC 60335-2-74）； - 水族箱和花园池塘的灯具（IEC 60598-2-18）； - 额定功率输入超过100W的户外使用设备； - 专为专业用途设计的设备； - 在特殊条件下使用的设备，例如存在腐蚀性或爆炸性环境（粉尘、蒸汽或气体）。 [外文原描述]： IEC 60335-2-55:2021 deals with the safety of electric appliances for use with aquariums and garden ponds for household and similar purposes, their rated voltage being not more than 250 V, including direct current (DC) supplied appliances and battery-operated appliances. Examples of appliances that this standard is applicable to are - aerators; - aquarium heaters; - automatic food dispensers; - sludge-suction appliances. Appliances not intended for normal household use but that nevertheless can be a source of danger to the public, such as appliances intended to be used by laymen in shops and in light industry and farms, 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 - pumps (IEC 60335-2-41); - other portable immersion heaters (IEC 60335-2-74); - luminaires for aquariums and garden ponds (IEC 60598-2-18); - appliances intended for outdoor use having a rated power input exceeding 100 W; - appliances intended exclusively for professional use; - 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 fourth edition cancels and replaces the third 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 or deleted (Clause 1, 5.2, 19.101, 21.1, 21.102, 22.101); c) updated the depth of immersion symbol (7.1, 7.6, 7.12); d) limits on the temperature rise of external accessible surfaces have been introduced (Clause 11). 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.