GB/T 7674-2020 Active
GB/T 7674-2020 Gas-insulated metal-enclosed switchgear for rated voltages of 72.5 kV and above
Abstract
This standard specifies the terms and definitions, normal and special operating conditions, rated values, design and structure, type tests, factory tests, and selection guidelines for gas-insulated metal-enclosed switchgear equipment.
This standard applies to gas-insulated metal-enclosed switchgear equipment (hereinafter referred to as "GIS" or "switchgear equipment") installed indoors and outdoors with a rated voltage of 72.5 kV and above and a rated frequency of 50 Hz, where the insulation is obtained at least partially through insulating gas rather than air under atmospheric pressure.
The gas-insulated metal-enclosed switchgear equipment covered by this standard consists of independent components that can be directly connected together, and these components can only operate in this manner.
As needed, this standard refines and supplements the relevant standards applicable to the various independent components that make up GIS.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 7674-2020 |
| CCS | High-voltage switchgear |
| ICS | High-voltage switchgear and controllers |
| Implement Date | 2021-06-01 |