爆燃性气体环境.第17部分:电气装置检验和维护

[中文适用范围]： IEC 60079 系列的这一部分适用于用户，并涵盖与危险区域内电气装置的检查和维护直接相关的因素，仅在危险区域内可能由易燃气体@蒸气@薄雾@灰尘@纤维或飞扬引起。它不包括： 电气装置的其他基本安装和检查要求；电气设备的验证；防爆设备的维修和回收（参见 IEC 60079-19）。本标准补充了 IEC 60364-6 的要求。对于灰尘@纤维或飞屑的情况，内务管理水平可能会影响检查和维护要求。本标准适用于在正常大气条件下因存在爆炸性气体或粉尘与空气或可燃粉尘层的混合物而存在风险的情况。它不适用于：地下矿区@不需要大气氧气燃烧的爆炸物粉尘@自燃物质。 [外文原描述]： IEC 60079-17:2013 applies to users and covers factors directly related to the inspection and maintenance of electrical installations within hazardous areas only, where the hazard may be caused by flammable gases, vapours, mists, dusts, fibres or flyings. It does not include: - other fundamental installation and inspection requirements for electrical installations; - the verification of electrical equipment; - the repair and reclamation of explosion protected equipment (see IEC 60079-19). This standard supplements the requirements of IEC 60364-6. In the case of dusts, fibres or flyings the level of housekeeping may influence the inspection and maintenance requirements. This standard is intended to be applied where there can be a risk due to the presence of explosive gas or dust mixtures with air or combustible dust layers under normal atmospheric conditions. It does not apply to: - underground mining areas, - dusts of explosives that do not require atmospheric oxygen for combustion, - pyrophoric substances. This fifth edition cancels and replaces the fourth edition published in 2007 and constitutes a technical revision. The significant technical changes with respect to the previous edition are as follows: - Equipment specific inspection tables for luminaires, heating systems and motors have been added into Annex A to supplement the general protection concept tables; - Document has been updated to complement the changes made to IEC 60079-14 for initial inspection. Keywords: inspection and maintenance of electrical installations within hazardous area, flammable gases, vapours, mists, dusts, fibres or flyings This publication is to be read in conjunction with IEC 60364-6:2006 .