JB/T 9646-1999
Small dry-type transformer for control or luminary (English Version)
- Standard No.
- JB/T 9646-1999
- Language
- Chinese, Available in English version
- Release Date
- 1999
- Published By
- Professional Standard - Machinery
- Status
- Latest
- JB/T 9646-1999
- Scope
- This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of small dry-type transformers for control or lighting. This standard applies to air-self-cooled, fixed or movable, built-in or other types, single-phase or multi-phase small dry-type transformers for control or use. Its rated power supply voltage does not exceed 1000V, its rated frequency is 50Hz, and its rated output capacity is not limited. For isolation transformers or electronic power transformers, unless otherwise specified, they should also be used accordingly. This standard does not apply to explosion-proof dry-type transformers, transformers filled with liquid media, and transformers filled with powder materials.
JB/T 9646-1999 history
- 1999 JB/T 9646-1999 Small dry-type transformer for control or luminary
