DIN IEC 60120 : 1987现行
DIMENSIONS OF BALL AND SOCKET COUPLINGS OF STRING INSULATOR UNITS
出版：German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
Applies to string insulator units of the cap and pin and long rod types and their associated fittings for overhead lines. Includes six standard sizes designated by the nominal pin diameters which form the basis of the standard. Defines each standard sizes by the dimensions of the pin ball, of the socket and hook-on "GO" gauge. States dimensions of twin-balled pins for coupling of two sockets. Tabulates clearance and locking conditions. Appendices give information on extreme positions of the pinball in the socket as well as on gauges for checking dimensions.
HD 474 : 200S1 - Corresponds
IEC 60120 : 3.0 - Identical
HD 474 : 200S1 - Identical
IEC 60120 : 3.0 - Identical
