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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB 20840.1-2010 |
Instrument transformers - Part 1: General requirements 互感器 第1部分：通用技术要求 |
China National Standards Instrument transformers 1: |
 English PDF |
| GB/T 22071.1-2008 |
Test guide for instrument transformers - Part 1: current transformers 互感器试验导则 第1部分: 电流互感器 |
China National Standards Instrument transformers 1: |
English PDF |
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