This standard specifies the basic parameters, requirements, test methods, inspection rules, marking, packaging and storage of motor-driven multi-axis integral gear speed-increasing centrifugal air compressors (hereinafter referred to as "compressors") used in general air power stations. This standard applies to compressors with a driving power of more than 270kW and a rated exhaust pressure of 0.2MPa to 1.3MPa. Other compressors used for electric drive in compressed air stations can be used for reference.