GB/T 22712-2021 Technical specification for G series cooling fans applying to variable frequency motors

GB/T 22712-2008 Specification for G series cooling fans applying to variable frequency motors

GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 755-2019 Rotating electrical machines—Rating and performance GB/T 1032-2012 Test procedures for three-phase induction motors GB/T 1236-2017 Industrial fan—Performance testing using standardized airways 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 2888-2008 Methods of noise measurement for fans blowers compressors and Roots blowers 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 5171.1-2014 Small power motors—Part 1:General technical requirements GB/T 5171.21-2016 Small power motors—Part 21:General test methods 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 12665-2017 Requirements of damp-heat testing of electrical machine for service in general environmental condition 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 12350-2000 Safety requirements of small power motors GB/T 12350-2009 Safety requirements of small-power motors GB/T 12350-2022 Safety requirements of small power motors JB/T 6445-2017 Fan impeller speed test above rated speed JB/T 9101-2014 Fan rotor balancing