GOST 12253-1988 Clips for ball-socket couplings of line hardware and insulators. Specifications
GOST 15150-1969 Machines, instruments and other industrial products. Modifications for different climatic regions. Categories, operating, storage and transportation conditions as to environment climatic aspects influence
GOST 27396-1993 Line accessories. Ball-socket couplings of insulators. Dimensions
GOST 27661-2017 history
2017GOST 27661-2017 Line suspension disk insulators. Types, parameters and dimensions
1988GOST 27661-1988 Line suspension disk insulators. Types, parameters and dimensions