MT/T 477-2025 YBU series flameproof three phases asynchronous motor for roadheader

MT/T 477-2011 Explosion-proof three-phase asynchronous motor for YBU series roadheader excavator

GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 191-2025 Graphical symbols marking for handling and storage of packages 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 755-2025 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 1032-2023 Test methods for three-phase asynchronous motors 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 2900.25-1994 Electrotechnical terminology—Rotating electrical machines GB/T 2900.25-2008 Electrotechnical terminology—Rotating electrical machines 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” 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 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 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/T 10111-1988 Methods for random sampling by utilizing dices of random number GB/T 10111-2008 Generation of random numbers and procedures applied to sampling inspection for product quality GB/T 22714-2008 Test specifications of interturn insulation of form-wound winding for AC low-voltage electrical machines GB/T 22715-2016 Impulse voltage withstand levels of form-wound stator coils for rotating a.c.machines GB/T 22719.1-2008 Interturn insulation of random-wound winding for AC low-voltage electrical machines—Part 1:Test methods AQ 1043-2007 Mining Product Safety Mark Identification