The YBK3 series flameproof three-phase asynchronous motors for coal mine underground use are suitable for driving general-purpose mechanical equipment in coal mine underground environments.
This series of motors complies with:
- GB/T 3836.1-2021 Explosive Atmospheres—Part 1: Equipment General Requirements
- GB/T 3836.2-2021 Explosive Atmospheres—Part 2: Equipment Protection by Flameproof Enclosures "d"
- GB/T 3836.3-2021 Explosive Atmospheres—Part 3: Equipment Protection by Increased Safety "e"
Additionally, they meet:
- JB/T 9593.1-2015 Technical Specifications for Flameproof Three-Phase Asynchronous Motors in Coal Mines—Part 1: YBK3 Series Flameproof Three-Phase Asynchronous Motors for Underground Coal Mines (Frame Sizes 80-355)
- Q/YL 001-2022 *Technical Specifications for YBK3 Series Flameproof Three-Phase Asynchronous Motors for Underground Coal Mines (Frame Sizes 400-450)
The motors carry the explosion-proof marking **Ex dbI Mb** and are suitable for coal mine underground excavation faces where methane and coal dust explosion hazards exist.