爆炸性环境.第0部分:设备.一般要求

[中文适用范围]： 本部分IEC 60079规定了用于爆炸性环境的电气Ex设备和Ex组件的构造、测试和标记的通用要求。 电气Ex设备可以运行的标准大气条件（与大气爆炸特性相关）为： - 温度 -20°C 至 +60°C； - 压力 80 kPa (0.8 bar) 至 110 kPa (1.1 bar)； - 空气正常氧含量，通常为 21% v/v。 本部分IEC 60079及其他补充本标准的标准规定了Ex设备在标准温度范围外运行的额外测试要求，但对于在标准大气压力范围和标准氧含量外运行的Ex设备，可能需要进一步额外考虑和测试。 本部分IEC 60079不适用于以下构造： - 电子医疗设备； - 引爆器； - 引爆器的测试设备； - 引爆电路。 [外文原描述]： IEC 60079-0:2017 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 60079-0:2017 specifies the general requirements for construction, testing and marking of Ex Equipment and Ex Components intended for use in explosive atmospheres. The standard atmospheric conditions (relating to the explosion characteristics of the atmosphere) under which it may be assumed that Ex Equipment can be operated are: -temperature –20 °C to +60 °C; -pressure 80 kPa (0,8 bar) to 110 kPa (1,1 bar); and -air with normal oxygen content, typically 21 % v/v. This part of IEC 60079 and other standards supplementing this standard specify additional test requirements for Ex Equipment operating outside the standard temperature range, but further additional consideration and additional testing may be required for Ex Equipment operating outside the standard atmospheric pressure range and standard oxygen content. Such additional testing may be particularly relevant with respect to Types of Protection that depend on quenching of a flame such as ‘flameproof enclosures “d”’ (IEC 60079-1) or limitation of energy, ‘intrinsic safety “i”’ (IEC 60079-11). This seventh edition cancels and replaces the sixth edition, published in 2011. This edition constitutes a technical revision. Refer to the Foreword of the document for a complete listing of the technical changes between edition 7.0 and the previous edition of the document. Keywords: Ex Equipment and Ex Components intended for use in explosive atmospheres The contents of the interpretation sheet 1 of April 2019, of the interpretation sheet 2 of June 2019 and the corrigendum 1 of January 2020 have been included in this copy.