This standard specifies the general technical requirements for small power motors. This standard applies to asynchronous motors, synchronous motors, DC motors and AC commutator motors whose continuous rated power does not exceed 1.1 kW when converted to 1500 r/min. The special requirements of various types of motors and other requirements not specified in this standard shall be specified in the product standards of various types of motors.
GB/T 5171-2002 history
2014GB/T 5171.1-2014 Small power motors.Part 1:General technical requirements
2002GB/T 5171-2002 General technical requirements for small power motors