GB 12977-2008 (English Version) PDF

Standard No.: GB 12977-2008
Language: Chinese, Available in English version
Release Date: 2008
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB 12977-2008
Replace: GB 12977-1991

Scope: This standard specifies requirements for protective covers and other protective measures. Guards and protective measures are used to reduce the mechanical hazards posed by unbalanced rotors at the measuring station of centrifugal (rotating) balancing machines. These hazards arise when balancing various types of rotors and operating balancing machines in different states of balance. This standard defines different levels of protection for shields and other protective measures. And limit the scope of application of each protection level. Devices for adjusting the mass distribution of the rotor and devices for conveying the rotor are not covered by this standard, although some of them are assembled at the measuring station. This standard does not cover the performance of special enclosures, such as noise reduction, windage reduction or vacuuming, which may be required when balancing a bladed rotor rotating at a balanced speed.

GB 12977-2008 Referenced Document

GB/T 2298 Mechanical vibration,shock and condition monitoring.Vocabulary*， 2010-12-23 Update
GB/T 6444 Mechanical vibration.Balancing.Vocabulary*， 2008-09-01 Update
ISO 2806 Industrial automation systems - Numerical control of machines - Vocabulary
ISO 4849 Personal eye-protectors; Specifications

2008 GB 12977-2008 Balancing machines.Enclosures and other protective measures for the measuring station
1991 GB 12977-1991 Balancing machines--Enclosures and other safety measures