高压开关设备和控制设备.第107部分:额定电压大于1 kV小于等于52 kV的交流熔断电路开关

[中文适用范围]： “IEC 62271 的这一部分适用于配电系统的三极操作单元，这些单元是电路开关和限流熔断器的功能组件，其设计能够： 在额定恢复电压下在任何负载下进行断路或故障电流达到并包括额定短路开断电流；在额定电压下接通额定短路开断电流的电路。它们旨在用于仅需要正常电流的电路或应用。机械和电气耐久性能力。此类应用包括保护高压/低压变压器@，但不包括配电线路或电缆@以及电机电路和电容器组电路。低电流短路条件@直至带保险丝的电路开关额定接管电流@由辅助装置处理（击打器@继电器@等）@正确布置@使电路开关跳闸。装有熔断器以确保装置的短路分断能力高于额定值的电路切换器。注 1：在本标准中，术语“熔断器”用于表示熔断器或熔断体，其中文本的一般含义不会导致歧义。本标准适用于额定电压为 1 kV 以上至 52 kV（含）的带熔断器电路开关，用于 50 Hz 或 60 Hz 的三相交流电系统。第 8 章提供了与其他现有开关设备的比较。 注 2：存在其他电路开关；参见参考文献[1]1。本标准不涵盖需要依赖手动操作的设备。保险丝符合 IEC 60282-1 标准。 IEC 62271-102 涵盖了构成电路切换器组成部分的接地开关。 IEC 62271-200 或 IEC 62271-201 涵盖了外壳@（如果有）中的安装。 1 括号内的数字指的是参考书目。” [外文原描述]： IEC 62271-107:2012 applies to three-pole operated units for distribution systems that are functional assemblies of a circuit-switcher and current-limiting fuses designed so as to be capable of: - breaking, at the rated recovery voltage, any load or fault current up to and including the rated short-circuit breaking current; - making, at the rated voltage, circuits to which the rated short-circuit breaking current applies. This second edition cancels and replaces the first edition, published in 2005. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition. - the reference to IEC 60694 has been changed to IEC 62271-1; - the new clauses and subclauses from IEC 62271-1 have been added and where necessary new wording has been provided; - the normative references have been updated: IEC 60265-1 to IEC 62271-103, IEC 60787 to IEC/TR 60787, IEC 60466 to IEC 62271-201, and IEC/TR 60787 was moved to the bibliography; - the figures and tables have been placed in the document where they are first cited; - the numbering of figures and tables has been changed to obtain the correct order; - the definition of NSDD was deleted. This definition is included in IEC 62271-1; - the acceptance criteria have been aligned with 6.101.4 of IEC 62271-103:2011; - the various provisions expressed about "extension of the validity of type tests" have been grouped under 6.103: some of the rules were duplicated in Clauses 6 and 8, and it seems better fitted to deal within each type test sub-clause only with the type test to be performed. Conditions have not been changed, but the wording is clearer; - new numbering of subclauses in Clauses 8 and 9 to avoid conflict with clauses from IEC 62271-1. This publication is to be read in conjunction with IEC 62271-1:2007 .