电气设备用工业级六氟化硫（SF6）及其混合物中使用的补充气体的规范

[中文适用范围]： 本文件定义了电气设备中使用的工业级六氟化硫 (SF6) 以及氮气 (N2) 和四氟化碳 (CF4) 等补充气体的质量。本文件还描述了检测技术，涵盖实验室和现场便携式仪器，适用于在将 SF6、N2 和 CF4 气体引入电气设备之前对这些气体进行分析。本文件提供了附录 A 中有关六氟化硫的一些信息以及附录 B 中有关 SF6 环境影响的一些信息。IEC 60480 涵盖了有关 SF6 副产品的信息以及评估 SF6 副产品对人类健康的潜在影响的程序，它们的处理和处置是根据国际和当地有关环境影响的法规进行的。 IEC 62271-4 涵盖了 SF6 及其混合物的处理。 IEC 60068-2-17 中描述了确定 SF6 泄漏的程序。就本文件而言，SF6 混合物中使用的补充气体仅限于 N2 或 CF4。 [外文原描述]： IEC 60376:2018 defines the quality for technical grade sulphur hexafluoride (SF6) and complementary gases such as nitrogen (N2) and carbon tetra-fluoride (CF4), for use in electrical equipment. Detection techniques, covering both laboratory and in-situ portable instrumentation, applicable to the analysis of SF6, N2 and CF4 gases prior to the introduction of these gases into the electrical equipment are also described in this document. This document provides some information on sulphur hexafluoride in Annex A and on the environmental effects of SF6 in Annex B. Information about SF6 by-products and the procedure for evaluating the potential effects of SF6 by-products on human health are covered by IEC 60480, their handling and disposal being carried out according to international and local regulations with regard to the impact on the environment. Handling of SF6 and its mixtures is covered by IEC 62271-4. Procedures to determine SF6 leakages are described in IEC 60068-2-17. For the purposes of this document, the complementary gases used in SF6 mixtures will be limited to N2 or CF4. This third edition cancels and replaces the second edition published in 2005. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) the requirements for the use of SF6 in electrical equipment have been confirmed; b) a specification for complementary gases to be used in SF6 mixtures with N2 and CF4 has been included; c) the introduction and scope have been merged; d) a new repartition of the annexes of IEC 60376, IEC 60480 and IEC 62271-4 has been included.