爆炸性环境第5部分:粉末填充“q”保护设备

[中文适用范围]： 本部分IEC 60079规定了用于爆炸性气体环境的粉末填充型"q"防护电气设备、电气设备部件和Ex组件的结构、试验和标志的具体要求。 注1：采用粉末填充型"q"防护的电气设备和Ex组件可包含电子电路、变压器、保护熔断器、继电器、本质安全电气设备、关联电气设备、开关等。 注2：粉末填充型"q"防护提供设备保护等级(EPL)Gb或Mb。更多信息参见附录A。 本标准补充和修改了IEC 60079-0的通用要求。当本标准要求与IEC 60079-0要求冲突时，以本标准要求为准。 本标准适用于具有以下特性的电气设备、电气设备部件和Ex组件： - 额定供电电流小于或等于16A； - 额定供电电压小于或等于1000V； - 额定功耗小于或等于1000W。 [外文原描述]： IEC 60079-5:2015 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 60079-5:2015 contains specific requirements for the construction, testing and marking of electrical equipment, parts of electrical equipment and Ex components in the type of protection powder filling "q", intended for use in explosive gas atmospheres. This standard supplements and modifies the general requirements of IEC 60079-0. Where a requirement of this standard conflicts with a requirement of IEC 60079-0, the requirement of this standard takes precedence. This standard applies to electrical equipment, parts of electrical equipment and Ex components with: - a rated supply current less than or equal to 16 A; - a rated supply voltage less than or equal to 1 000 V; - a rated power consumption less than or equal to 1 000 W. This fourth edition cancels and replaces the third edition, published in 2007, and constitutes a technical revision. Refer to the Foreword of the document for a complete listing of the technical changes between edition 4.0 and previous edition of the document. Keywords: electrical equipment and Ex components in the type of protection powder filling "q"