GB/T 12944.1-1991
High-voltage ceramic wall bushings--Technical specifications (English Version)
- Standard No.
- GB/T 12944.1-1991
- Language
- Chinese, Available in English version
- Release Date
- 1991
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2009-04
- Replace By
- GB/T 4109-2008
- Latest
- GB/T 4109-2022
- Scope
- This standard specifies the technical requirements, test methods, inspection rules, packaging and marking of high-voltage through-wall porcelain bushings. This standard is applicable to indoor, outdoor-indoor wall-through porcelain bushings (abbreviated as bushings) and bushings used in three-phase AC system power stations and substation power distribution devices with a rated voltage of 6-35kV and a frequency of 15-60Hz. The ambient temperature of the installation site should be -40～+40℃. See Appendix A of GB4109 for the use of bushings when the ambient temperature exceeds +40°C. The casing is suitable for horizontal installation, and the indoor casing can be installed vertically. This standard does not apply to bushings used under conditions sufficient to degrade bushing performance and to condensation on parts of the interior of the bushing.
GB/T 12944.1-1991 history
- 2022 GB/T 4109-2022 Insulated bushings for alternating voltages above 1 000 V
- 2008 GB/T 4109-2008 Insulated bushings for alternating voltages above 1000V
- 1991 GB/T 12944.1-1991 High-voltage ceramic wall bushings--Technical specifications
GB/T 12944.1-1991 High-voltage ceramic wall bushings--Technical specifications was changed to GB/T 4109-2008 Insulated bushings for alternating voltages above 1000V.
