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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| DL 497-1992 |
Rules of operational management of electric power system automatic under-frequency load-shedding 电力系统自动低频减负荷工作管理规程 |
China Electricity & Power
Standards Rules operational management |
 English PDF |
| DL 410-1991 |
Rules of operational management of transducers for electrical measurement 电工测量变送器运行管理规程 |
China Electricity & Power
Standards Rules operational management |
English PDF |
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