GB/T 21967-2008
YBZE, YBZSE range three-phase induction motors for crane application flameproof electromagnetic braking technical specifications (English Version)
- Standard No.
- GB/T 21967-2008
- Language
- Chinese, Available in English version
- Release Date
- 2008
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2021-06
- Replace By
- GB/T 21967-2020
- Latest
- GB/T 21967-2020
- Scope
- This standard stipulates the type, basic parameters and dimensions, technical requirements, inspection rules and test methods, marking, packaging and warranty period requirements of YBZE and YBZSE series flameproof electromagnetic brake three-phase asynchronous motors. This standard applies to all kinds of hoisting machinery power transmission flameproof electromagnetic braking three-phase asynchronous motors (hereinafter referred to as motors), and all series of motors derived from this series of motors can be referred to for implementation. The explosion-proof performance of this series of motors meets the requirements of GB 3836.2-2000 and is made of explosion-proof type. The explosion-proof marks are Exd I, Exd Ⅱ AT4, Exd Ⅱ BT4, Exd Ⅱ CT4. They are respectively suitable for underground coal mine equipment and factories of Class IIA, IIB, and IIC, where the ignition temperature is flammable gas or explosive mixture of steam and air in Group T1~T4.
GB/T 21967-2008 Referenced Document
- GB 10068-2000 Mechanical vibration of certain machines with shaft heights 56mm and higher-Measurement,evaluation and limits of vibration
- GB 10069.3-2006 Measurement of airborne noise emitted by rotating electrical machines and the noise limits. Part 3: Noise limits
- GB 20294 Safety requirements of flameproof crane and metallurgical motors and canned motors
- GB 3836.1-2000 Electrical apparatus for explosive gas atmospheres-Part 1: General requirements
- GB 3836.2-2000 Electrical apparatus for explosive gas atmospheres-Part 2: Flameproof enclosure "d"
- GB 755-2000 Rotating electrical machines-Rating and performance
- GB/T 10069.1-2006 Measurement of airborne noise emitted by rotating electrical machines and the noise limits Part 1: Method for the measurement of airborne noise emitted by rotating electrical machines
- GB/T 1032-2005 Test procedures for three-phase induction motors
- GB/T 1096-2003 Square and Rectangular keys
- GB/T 12351-1990 Enviromental technical requirements of rotating electric machines for tropical use
- GB/T 13306-1991 Plates
- GB/T 1993-1993 Cooling methods for rotating electrical machines
- GB/T 2423.4-1993 Basic environmental testing procedures for electric and electronic products. Test Db:Damp heat,cyclic
- GB/T 4772.1-1999 Dimensions and output series for rotating electrical machines. Part 1: Frame numbers 56 to 400 and flange numbers 55 to 1080
- GB/T 4942.1-2006 Degrees of protection provided by the integral design of rotating electrical machined (IP code) - Classification
- GB/T 757-1993 Conical snaft extension for rotating electrical machines
- GB/T 997-2003 Classification of types of construction and mounting arrangements for rotating electrical machines(IM code)
GB/T 21967-2008 history
- 2020 GB/T 21967-2020 YBZE and YBZSE series flameproof electromagnetic braking three-phase induction motors for crane application—Technical specification
- 2008 GB/T 21967-2008 YBZE, YBZSE range three-phase induction motors for crane application flameproof electromagnetic braking technical specifications