收集可燃粉尘的提供Dc设备防护级别的真空清洁器和吸尘器. 详细要求

[中文适用范围]： 本国际标准涵盖电动移动式电动真空吸尘器设备防护等级 (EPL) Dc。这包括用于湿吸或干吸的除尘器@，用于商业室内使用，带或不带附件@以收集爆炸性粉尘环境中的可燃粉尘。除了 IEC 60335-2-69 中商业和工业真空吸尘器的要求外，还适用本文件涵盖的构造和测试要求。本文件补充和修改了IEC 60079-0的要求。当本标准的要求与 IEC 60079-0 的要求发生冲突时，以本标准的要求为准。涵盖以下电力系统： 交流电源供电的电机，单相电器的额定电压最高为 250 V，其他电器的额定电压最高为 480 V。本文件不涵盖与极端环境温度（低于 ℃20 或高于 40 ℃）相关的特定危险，除非制造商按照 IEC 60079-0 中的规定另有标记。温度不得超过 ℃20 的温度范围??至+60 ??本文件不涵盖正在考虑附加要求的电动清洁头。本文件不适用于 ?C 背负式真空吸尘器； ?C 牵引驱动真空吸尘器； ?C 真空吸尘器家用和吸水清洁设备（IEC 60335-2-2）；商用地板处理机（IEC 60335-2-67@IEC 60335-2-72）；商用喷洗机(IEC 60335-2-68)； ?C 手持式电动花园鼓风机@真空吸尘器和鼓风真空吸尘器 (IEC 60335-2-100)； ?C 手持式和可移动电动工具（IEC 62841 系列）；医疗用途的 C 器具（IEC 60601-1）；设计用于腐蚀环境的 C 机器； ?C 型机器设计用于拾取易燃液体； ?C 机器设计用于由于存在爆炸性物质或烟火产品@或不稳定化学物质而导致的爆炸性环境。 [外文原描述]： IEC 62784:2017 covers electrical mobile motor-operated vacuum cleaners Equipment Protection Level (EPL) Dc. This includes dust extractors, for wet suction or dry suction, intended for commercial indoor use with or without attachments, to collect combustible dust in an explosive dust atmosphere. The requirements for the construction and testing covered by this document are applied in addition to the requirements for commercial and industrial vacuum cleaners in IEC 60335-2-69. This document supplements and modifies the requirements of IEC 60079-0. Whenever a requirement of this standard is in conflict with a requirement of IEC 60079-0 the requirement of this standard will take precedence. The following power systems are covered: - mains powered motors up to a rated voltage of 250 V for single-phase appliances and 480 V for other appliances. This document does not cover specific hazards associated with extreme ambient temperatures (less than –20 °C or higher than 40 °C) unless otherwise marked by the manufacturer as given in IEC 60079-0. The temperatures shall not exceed the temperature range of –20 °C to +60 °C. This document does not cover motorized cleaning heads for which additional requirements are under consideration. This document does not apply to: - back-pack vacuum cleaners; - vacuum cleaners with a traction drive; - vacuum cleaners and water-suction cleaning appliances for household use (IEC 60335-2-2); - floor treatment machines for commercial use (IEC 60335-2-67, IEC 60335-2-72); - spray extraction machines for commercial use (IEC 60335-2-68); - hand-held mains-operated electrical garden blowers, vacuums and blower vacuums (IEC 60335-2-100); - hand-held and transportable motor-operated electric tools (IEC 62841 series); - appliances for medical purposes (IEC 60601-1); - machines designed for use in corrosive environments; - machines designed for picking up flammable liquids; - machines designed for use in explosive environments due to the presence of explosive substances or pyrotechnical products, or unstable chemical substances.