SJ/T 9554.4-1993
Grading standard of quality for vacuum switch tubes for low voltage circuit breakers (English Version)
- Standard No.
- SJ/T 9554.4-1993
- Language
- Chinese, Available in English version
- Release Date
- 1993
- Published By
- Professional Standard - Electron
- Status
- 2010-02
- Latest
- SJ/T 9554.4-1993
- Scope
- This standard is applicable to the quality grade assessment of vacuum switch tubes used in low-voltage circuit breakers. This standard only gives the grading requirements for key technical indicators and is not a complete standard. It must be consistent with the "General Specifications for Vacuum Switch Tubes for Low-Voltage Circuit Breakers", "Blank Detailed Specifications for Ceramic Vacuum Switch Tubes for Low-voltage Circuit Breakers", "Glass for Low-voltage Circuit Breakers" "Blank Detailed Specification for Vacuum Switches" is used together with the relevant detailed specification.
SJ/T 9554.4-1993 history
- 1993 SJ/T 9554.4-1993 Grading standard of quality for vacuum switch tubes for low voltage circuit breakers
