IEC 60051-3:2018 直接作用指示模拟电气测量仪器及其附件第3部分:瓦特表和Varmeters的特殊要求

标准编号：IEC 60051-3:2018

中文名称：直接作用指示模拟电气测量仪器及其附件第3部分:瓦特表和Varmeters的特殊要求

英文名称：Direct acting indicating analogue electrical measuring instruments and their accessories - Part 3: Special requirements for wattmeters and varmeters

发布日期：2018-08-30

标准范围

IEC 60051-3:20 18适用于具有模拟显示器的直接作用指示瓦特计和可变电度表。IEC 60051-3:20 18也适用于:？与瓦特计和变量计一起使用的不可互换附件（定义见IEC 60051-1:20 16的3.1.23）；？仪器和附件的组合，前提是已经对该组合进行了调整；？其刻度标记与其电输入量不直接对应的直接作用指示电测量仪器，前提是它们之间的关系是已知的；？在其测量和/或辅助电路中具有电子设备的仪器和附件。IEC 60051-3:20 18不适用于:？其自身IEC标准涵盖的特殊用途仪器；？用作附件时受其自身IEC标准保护的特殊用途设备。IEC 60051-3:20 18取消并取代1984年发布的第四版和修正案1:19 94。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 60051-3:20 18应与IEC 60051-1:20 16结合使用。

IEC 60051-3:2018 applies to direct acting indicating wattmeters and varmeters having an analogue display.
IEC 60051-3:2018 also applies to:
？non-interchangeable accessories (as defined in 3.1.23 of IEC 60051-1:2016) used with wattmeters and varmeters;
？a combination of the instruments and the accessories provided that the adjustments have been made for the combination;
？direct acting indicating electrical measuring instruments whose scale marks do not correspond directly to their electrical input quantity, provided that the relationship between them is known;
？instruments and accessories having electronic devices in their measuring and/or auxiliary circuits.
IEC 60051-3:2018 does not apply to:
？special purpose instruments which are covered by their own IEC standards;
？special purpose devices which are covered by their own IEC standards when they are used as accessories.
IEC 60051-3:2018 cancels and replaces the fourth edition published in 1984 and Amendment 1:1994. 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 60051-3:2018 is to be used in conjunction with IEC 60051-1:2016.

标准预览图