GB/T 9239.13-2023

This standard specifies criteria and safety precautions for performing in-situ balancing of medium and large rotors, such as turbines, generators, and large fans, without removing them from their installed bearings. It is applied in industrial settings like power plants, petrochemical facilities, and heavy machinery operations where on-site vibration correction is required to avoid disassembly. The standard provides guidelines for acceptable residual unbalance, measurement procedures, and protective measures to ensure personnel and equipment safety during the balancing process.