标准摘要
[中文适用范围]： IEC 60079的这一部分规定了用于爆炸性气体环境中的电气设备和Ex组件，具有增加安全性"e"保护类型的设计、构造、测试和标记要求。 增加安全性"e"保护类型的电气设备和Ex组件是： a) 保护级别"eb"（EPL "Mb"或"Gb"）；或 b) 保护级别"ec"（EPL "Gc"）。 保护级别"eb"适用于设备或Ex组件，包括其连接、导体、绕组、灯具和电池；但不包括半导体或电解电容器。 保护级别"ec"适用于设备或Ex组件，包括其连接、导体、绕组、灯具和电池；并且也包括半导体和电解电容器。 本标准的这些要求适用于两个保护级别，除非另有说明。 对于保护级别"eb"，本标准适用于额定电压不超过11 kV r.m.s.，交流或直流的电气设备。 对于保护级别"ec"，本标准适用于额定电压不超过15 kV r.m.s.，交流或直流的电气设备。 [外文原描述]： IEC 60079-7:2015+A1:2017 specifies the requirements for the design, construction, testing and marking of electrical equipment and Ex Components with type of protection increased safety "e" intended for use in explosive gas atmospheres. Electrical equipment and Ex Components of type of protection increased safety "e" are either: - level of Protection "eb" (EPL "Mb" or "Gb"); or - level of Protection "ec" (EPL "Gc"). Level of Protection "eb" applies to equipment or Ex Components, including their connections, conductors, windings, lamps, and batteries; but not including semiconductors or electrolytic capacitors. Level of Protection "ec" applies to equipment or Ex Components, including their connections, conductors, windings, lamps, and batteries; and also including semiconductors and electrolytic capacitors. The requirements of this standard apply to both Levels of Protection unless otherwise stated. For Level of Protection "eb", this standard applies to electrical equipment where the rated voltage does not exceed 11 kV r.m.s., a.c. or d.c. For Level of Protection "ec", this standard applies to electrical equipment where the rated voltage does not exceed 15 kV r.m.s., a.c. or d.c. 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 fifth edition cancels and replaces the fourth edition published in 2006, and constitutes a technical revision. Refer to the Foreword of the document for a complete listing of the technical changes between edition 5.0 and previous edition of the document. The contents of the Interpretation sheet 1 of September 2016 have been included in this copy. This consolidated version of the official IEC Standard and its amendment contains the fifth edition (2015) and its amendment 1 (2017). Therefore, no need to order amendment in addition to this publication.
英文名称Explosive atmospheres - Part 7: Equipment protection by increased safety "e"