JB/T 56261-1999
Maintain intermediate relay product quality grading (English Version)
- Standard No.
- JB/T 56261-1999
- Language
- Chinese, Available in English version
- Release Date
- 1999
- Published By
- Professional Standard - Machinery
- Status
- Latest
- JB/T 56261-1999
- Scope
- This standard specifies the quality levels, inspection methods and assessment procedures to maintain the quality classification of intermediate relays. This standard is applicable to the quality grade assessment and assessment basis for self-maintaining intermediate relays used in power system relay protection and automatic control DC operating lines.
JB/T 56261-1999 history
- 1999 JB/T 56261-1999 Maintain intermediate relay product quality grading
