交流电动机电容器.第1部分:总则.性能,试验和评定.安全性要求.安装和运转指南

[中文适用范围]： IEC 60252的这一部分适用于连接到由频率高达（包括100 Hz）的单相系统供电的异步电机绕组的电机电容器，以及连接到三相异步电机的电容器，以便这些电机可以由单相系统供电。该标准涵盖具有纸、塑料薄膜或两者组合电介质的浸渍或未浸渍电容器，金属化或金属箔电极，额定电压高达 660 V（含）。电机启动电容器受 IEC 60252- 2.本标准的目的是 a) 制定有关性能、测试和评级的统一规则； b) 制定具体的安全规则； c) 提供安装和操作指导。 [外文原描述]： IEC 60252-1:2010 applies to motor capacitors intended for connection to windings of asynchronous motors supplied from a single-phase system having a frequency up to and including 100 Hz, and to capacitors to be connected to three-phase asynchronous motors so that these motors may be supplied from a single-phase system. This standard covers impregnated or unimpregnated capacitors having a dielectric of paper, plastic film, or a combination of both, either metallized or with metal-foil electrodes, with rated voltages up to and including 660 V. This edition includes the following significant technical changes with respect to the previous edition: - the definition of "segmented capacitors" has been added in 3.6; - the definition of "classes of operation" has been clarified, with the addition of the concept of "probable life" with reference to statistics, in 3.9; - the following wording "Operation above the rated voltage will reduce the life expectancy of the capacitor" has been introduced in 6.1. - some clarifications have been added to Clause 8, Marking, mainly for small capacitors.