JB/T 56288-1999
Ordinary intermediate relay product quality classification (English Version)
- Standard No.
- JB/T 56288-1999
- Language
- Chinese, Available in English version
- Release Date
- 1999
- Published By
- Professional Standard - Machinery
- Status
- Latest
- JB/T 56288-1999
- Scope
- This standard specifies the quality grades and assessment procedures for the quality classification of ordinary intermediate relays. This standard is applicable to ordinary secondary circuits of power systems (such as protection circuits, control circuits, measurement circuits, etc.) to increase the number of contact pairs of the previous stage relay, or to increase the contact capacity and conversion circuit of the previous stage. The quality grade assessment and assessment basis of intermediate relays.
JB/T 56288-1999 history
- 1999 JB/T 56288-1999 Ordinary intermediate relay product quality classification
