标准摘要
[中文适用范围]： IEC 61869-20:2025 IEC 61869 的本部分规定了设备最高电压高于 1 kV 交流或 1.5 kV 直流的仪器变压器的安全设计和操作要求，并对其进行了安全测试。本文件不涵盖小功率仪器变压器。 [外文原描述]： IEC 61869-20:2025 This part of IEC 61869 specifies the requirements for the safe design and operation, and tests for the safety of instrument transformers whose highest voltage for equipment is higher than 1 kV AC or 1,5 kV DC. Low power instrument transformers are not covered by this document. The content of the corrigendum 1 (2026-01) has been included in this copy.
英文名称Instrument transformers – Part 20: Safety requirements of instrument transformers for high voltage applications