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Standard Insuued on: 1997-10 |
Category No.: | DL | Valid Status: | superseded |
Issued Organization: | MPI | Issued Date: | 1997-10-22 |
Implemented Date: | 1998-1-1 | Abolished Date: | 2016-06-01 |
Superseded Standard.: | DL/T 639-2016 Safety and protection rules for operation, test and maintenace personnel of SF6 in electrical apparatus |
Superseded Date: | 2016-6-1 |
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