GB/T 10068-2020 Mechanical vibration of certain machines with shaft heights 56 mm and higher—Measurement,evaluation and limits of vibration severity

Scope

This standard specifies the methods and vibration limits for factory vibration acceptance tests of rotating electric motors disconnected from any load and prime mover under specified conditions.
This standard applies to DC motors and three-phase AC motors with a shaft center height of 56 mm or more, a rated output of 50 MW or less, and an operating speed of 120 r/min to 15,000 r/min.
This standard does not apply to motors installed at the operating site (on-site), three-phase commutator motors, single-phase motors, three-phase motors powered by single-phase electricity, vertical hydroelectric generators, turbine generators with a capacity of more than 20 MW, and motors with magnetic levitation bearings or series excited motors.

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