CONTACT SYSTEM SECTION INSULATOR (DESIGN VERSIONS) Russian patent published in 2001 - IPC

FIELD: electrified railways; sectional of contact system. SUBSTANCE: according to first design version, section insulator has two insulating inserts, each including sliders with arc-quenching horns secured between tensioning insulating elements with longitudinal displacement relative to each other. Spacers are mounted on fixing clamps, and droppers coupled with carrier cable are secured on spacers. Lower sliding plane of insulator is located 20-30 mm higher than neighbor points of contact wire suspender. According to other design version, two rod-type insulating elements are used whose ends, together with corresponding ends of contact wire, are placed between central parts of U-shaped brackets. Bent off ends of U-shaped brackets are connected to guide on which sliders are secured. Suspender is fastened to ends of horizontal walls of guides. According to third design version, insulator has insulating element with sliders installed at both sides of element with provision of air insulation relative to each other and relative to insulating element. EFFECT: improved sectioning of contact system. 23 cl, 4 dwg