IEC 60051-5:2017 直接作用指示模拟电气测量仪器及其附件 - 第5部分:相位计 功率因数表和同步镜的特殊要求

标准编号：IEC 60051-5:2017

中文名称：直接作用指示模拟电气测量仪器及其附件 - 第5部分:相位计 功率因数表和同步镜的特殊要求

英文名称：Direct acting indicating analogue electrical measuring instruments and their accessories - Part 5: Special requirements for phase meters, power factor meters and synchroscopes

发布日期：2017-12-15

标准范围

IEC？60051-5:20 17适用于具有模拟显示器的直接作用指示相位计、功率因数计和同步计。本文件也适用于与相位计、功率因数计和同步器一起使用的不可互换附件（定义见IEC？60051-1:20 16的3.1.23）。本文件也适用于刻度标记不直接对应于其电输入量的相位表或功率因数表，前提是它们之间的关系是已知的。这第五版取消并取代了1985年出版的第四版。本版构成技术修订版。与上一版相比，此版本包括以下重大技术变更:a)根据新版IEC更新内容？60051-1和IEC？60051-9;b）增加附录A，规定检测项目的不合格分类。

IEC？60051-5:2017 applies to direct acting indicating phase meters, power factor meters and synchroscopes having an analogue display.
This document also applies to non-interchangeable accessories (as defined in 3.1.23 of IEC？60051-1:2016) used with phase meters, power factor meters and synchroscopes.
This document also applies to a phase meter or power factor meter whose scale marks do not correspond directly to its electrical input quantity, provided that the relationship between them is known.
This fifth edition cancels and replaces the fourth edition published in 1985. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) updating of content in line with new editions of IEC？60051-1 and IEC？60051-9;
b) addition of Annex A to specify the nonconformity classification of test items.

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