GB/T 21972.2-2023 Technical specification for variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical applications—Part 2:YZP series variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical applications(cooled with axial fan)(frame size 100～400）

GB/T 21972.1-2023 Technical specification for variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical applications—Part 1:YZP series variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical applications(frame size 100～400) GB/T 21972.3-2023 Technical specification for variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical applications—Part 3:YZP series variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical applications

GB/T 21972.2-2012 Specification for variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical applications—Part 2:YZP series variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical applications(cooled with axial fan)

GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB 755-2000 Rotating electrical machines—Rating and performance GB/T 755-2008 Rotating electrical machines—Rating and performance GB/T 755-2019 Rotating electrical machines—Rating and performance GB/T 755.2-2003 Methods for determining losses and efficiency of rotating electrical machinery from tests(excluding machines for traction vehicles) GB/T 756-1990 Cylindrical shaft extension for rotating electrical machines GB/T 756-2010 Cylindrical shaft extension for rotating electrical machines GB/T 757-1993 Conical snaft extension for rotating electrical machines GB/T 757-2010 Conical shaft 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 997-2008 Rotating electrical machines—Classification of types of construction,mounting arrangements and terminal box position for(IM Code) GB/T 997-2022 Classification of types of construction,mounting arrangements and terminal box position (IM Code) for rotating electrical machines GB/T 1096-2003 Square and rectangular keys GB/T 1958-2004 Geometrical product Specifications(GPS)—Geometrical tolerance—Verification prescription GB/T 1958-2017 Geometrical Product Specifications(GPS)—Geometrical tolerance—Verification GB 1971-1980 Terminal markings and direction of rotation of rotating electrical machines GB/T 1971-2006 Rotating electrical machines—Terminal markings and direction of rotation GB/T 1971-2021 Rotating electrical machines—Terminal markings and direction of rotation 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 2423.4-2008 Environmental testing for electric and electronic products—Part 2:Test method—Test Db:Damp heat,cyclic(12 h+12 h cycle) 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 4942-2021 Degrees of protection provided by the integral design of rotating electrical machines(IP code)—Classification GB/T 4942.1-2001 Classification of degrees of protection provided by enclosures of rotating electrical machines (IP code) GB/T 4942.1-2006 Degrees of protection provided by the integral design of rotating electrical machined(IP code)—Classification GB/T 4942.2-1993 Degrees of protection provided by enclosures for low-voltage apparatus GB 10068-2000 Mechanical vibration of certain machines with shaft heights 56mm and higher—Measurement,evaluation and limits of vibration GB/T 10068-2008 Mechanical vibration of certain machines with shaft heights 56 mm and higher—Measurement,evaluation and limits of vibration severity GB/T 10068-2020 Mechanical vibration of certain machines with shaft heights 56 mm and higher—Measurement,evaluation and limits of vibration severity GB/T 10069.1-2006 Measurement of the 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 10069.3-2006 Measurement of airborne noise emitted by rotating electrical machines and the noise limits—Part 3:Noise limits GB/T 10069.3-2008 Measurement of airborne noise emitted by rotating electrical machines and the noise limits—Part 3:Noise limits GB/T 10069.3-2024 Measurement of airborne noise emitted by rotating electrical machines and the noise limits—Part 3:Noise limits GB/T 12351-1990 Enviromental technical requirements of rotating electric machines for tropical use GB/T 12351-2008 Environmental technical requirements of rotating electric machines for tropical use GB 20237-2006 Safety requirements of crane and metallurgical motors and canned motors GB/T 22670-2008 Test procedures for converter-fed three phase cage induction motors GB/T 22670-2018 Test procedures for converter-fed three phase cage induction motors GB/T 22712-2008 Specification for G series cooling fans applying to variable frequency motors GB/T 22712-2021 Technical specification for G series cooling fans applying to variable frequency motors GB/T 22719.1-2008 Interturn insulation of random-wound winding for AC low-voltage electrical machines—Part 1:Test methods GB/T 22719.2-2008 Interturn insulation of random-wound winding for AC low-voltage electrical machines—Part 2:Test limits GB/T 755-2025 Rotating electrical machines—Rating and performance GB/T 191-2025 Graphical symbols marking for handling and storage of packages GB/T 4772.1-2025 Dimensions and output series for rotating electrical machines—Part 1:Frame numbers 56 to 400 and flange numbers 55 to 1 080