高压开关设备和控制设备 第4部分：绝缘和/或开关气体的处理程序

[中文适用范围]： IEC 62271-4:2022 规定了用于绝缘和/或开关的高压气体（包括六氟化硫 (SF6)、SF6 混合物、压缩空气、天然来源气体以及 C5-FK 和 C4-FN 混合物）在高压开关设备和控制设备中的处理程序。这些程序涵盖了安装、投运、维修、大修、正常运行期间的顶充、气体质量检查、气体成分校正、回收和再生，以及设备报废处理等全生命周期的气体管理流程。本部分适用于使用上述气体作为绝缘和/或灭弧介质的高压开关设备和控制设备。 [外文原描述]： IEC 62271-4:2022 applies to the procedures for handling of gases for insulation and/or switching during installation, commissioning, repair, overhaul, normal and abnormal operations and disposal at the end‑of‑life of electric power equipment. These procedures are regarded as minimum requirements to ensure the reliability of electric power equipment, the safety of personnel working with these gases and to minimize the impact on the environment. Additional requirements could be given or specified in the operating instruction manual of the manufacturer. This second edition cancels and replaces the first edition of IEC 62271-4 published in 2013. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: title has been modified; handling procedures of alternatives to SF6, which are used for insulation and/or switching, are added; the main clauses are independent from the type of gas; for each gas a separate annex describes gas specific information, handling procedures, safety measure, etc.; information about SF6 (former Annex E) and about environmental effects of SF6 and its mixtures (former Annex F) has been moved to IEC 60376; information about by-products of SF6 and its mixtures (former Annex G), the procedure for evaluating the potential effects on health of by-products of SF6 and its mixtures (former Annex H) and the cryogenic reclaim of SF6 (former Annex I) have been moved to IEC 60480.