IEC 60885-3:2015 电缆电气测试方法 - 第3部分:挤出电力电缆长度部分放电测量的测试方法

标准编号：IEC 60885-3:2015

中文名称：电缆电气测试方法 - 第3部分:挤出电力电缆长度部分放电测量的测试方法

英文名称：Electrical test methods for electric cables - Part 3: Test methods for partial discharge measurements on lengths of extruded power cables

发布日期：2015-04-09

标准范围

IEC 60885-3:20 15作为IEC标准+60885-3:20 15提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。IEC 60885-3:20 15规定了对挤压电力电缆长度进行局部放电（PD）测量的测试方法，但不包括对已安装电缆系统进行的测量。参考IEC 60270，其给出了一般适用于局部放电测量的技术和考虑因素。IEC 60885-3的第二版取消并取代了1988年出版的第一版，构成了技术修订。与上一版相比，此版本包括以下重大技术变更:-将灵敏度定义为背景噪音水平的两倍已被删除，取而代之的是根据可检测到的最低水平对灵敏度进行实际评估。-在示波器上以mm为单位的脉冲高度的测量值已被以pC为单位的局部放电幅度的测量值所取代。-条款的顺序已根据IEC标准的一般编号方案进行了修订，并提供了清晰度，以方便其实际使用。第一版（应用指南）的第3节已被删除，因为认为背景信息最好从参考书目中列出的原始参考文献中获得。

IEC 60885-3:2015 is available as IEC Standards+ 60885-3:2015 which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60885-3:2015 specifies the test methods for partial discharge (PD) measurements on lengths of extruded power cable, but does not include measurements made on installed cable systems. Reference is made to IEC 60270 which gives the techniques and considerations applicable to partial discharge measurements in general. This second edition of IEC 60885-3 cancels and replaces the first edition, published in 1988 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- The definition of sensitivity as twice the background noise level has been removed and replaced by a practical assessment of sensitivity based on the minimum level of detectable discharge.
- References to measurements of pulse heights in mm on an oscilloscope have been replaced by measurements of partial discharge magnitude in pC.
- The order of the clauses has been revised in line with the general numbering scheme of IEC standards and to provide clarity in order to facilitate its practical use. Section 3 of the first edition (Application guide) has been removed as it is considered that background information is better obtained from the original references as listed in the bibliography.

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