标准摘要
[中文适用范围]： 在第四段后添加以下内容： IEC 62052-31:2015 涵盖安全方面。 [外文原描述]： The contents of the corrigendum of March 2018 have been included in this copy.
英文名称Amendment 1 - Electricity metering equipment (a.c.) - General requirements, tests and test conditions - Part 21: Tariff and load control equipment