Sockets
Tongues are intended for connection of a suspended insulator’s pin or a ball eye with other line fittings. Tongues are completed with W-locks for interlocking the pin of a relevant ball joint. The following types of socket tongues and clevis are available for overhead transmission lines:
У1 – socket tongue;
У1K – short socket tongue;
У2 – socket clevis;
У2K – short socket clevis;
УС – special socket clevis with a bent cotter-pin;
УСК – short socket clevis with a bent cotter-pin.
Socket tongues, type У1 and У2 are intended for coupling of a suspended insulator pin or a ball eye with other clevis eye fittings. Short socket tongues and socket clevis, type У1K and У2K are used for completing of the suspension sets and messenger cable anchors without protective fittings (arcing horns and protective rings). Using short socket tongues and socket clevis, type У1K and У2K allows reduced length and weight of a suspension string. Special socket clevis, type УС and УСК are intended for coupling a suspended insulator pin or a ball eye with other line fittings having toroidal surface of chain connection. Special socket clevis, type УС and УСК have a bent cotter pin enabling hinged chain connection with shackles, type СК or yoke plates, type 2KУ. Socket clevis, type УС have an eye for fastening of protective rings and arcing horns. Special short socket clevis, type УСК are shorter than the regular ones, type УС and are not intended for fastening protective rings and arcing horns. Socket tongues and socket clevis of all types meet the requirements of TU U 31.2-30255335-002:2006.
