| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard | 
			| GB/T 40091-2021 | English | 249 | Add to Cart | Days<=3 | Requirements for safety measures of relaying protection and security automatic equipment in smart substation | GB/T 40091-2021 | Valid | GB/T 40091-2021 |