IEC 60051-4:2018 直接作用模拟指示电测量仪表及其附件第4部分:频率计的特殊要求

标准编号：IEC 60051-4:2018

中文名称：直接作用模拟指示电测量仪表及其附件第4部分:频率计的特殊要求

英文名称：Direct acting indicating analogue electrical measuring instruments and their accessories title - Part 4: Special requirements for frequency meters

发布日期：2018-08-30

标准范围

IEC 60051-4:20 18适用于以下类型的直接作用指示模拟频率计:？指针式频率计（定义见IEC 60051-1:20 16的3.2.11）；？振动簧片频率计（定义见IEC 60051-1:20 16的3.2.12）。IEC 60051-4:20 18也适用于频率计使用的不可互换附件（定义见IEC 60051-1:20 16的3.1.23）。IEC 60051-4:20 18取消并取代1984年发布的第四版。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 60051-1和IEC 60051-9更新内容；b）增加附录A，规定检测项目的不合格分类。IEC 60051-4:20 18？与IEC 60051-1:20 16结合使用。

IEC 60051-4:2018 applies to direct acting indicating analogue frequency meters of the following types:
？pointer-type frequency meters (as defined in 3.2.11 of IEC 60051-1:2016);
？vibrating-reed frequency meters (as defined in 3.2.12 of IEC 60051-1:2016).
IEC 60051-4:2018 also applies to non-interchangeable accessories (as defined in 3.1.23 of IEC 60051-1:2016) used with frequency meters.
IEC 60051-4:2018 cancels and replaces the fourth edition published in 1984. 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.
IEC 60051-4:2018？is to be used in conjunction with IEC 60051-1:2016.

标准预览图