Insulator for high level slide conduction bars - has conductors held within moulded slots preventing buckling due to heating

摘要

The insulating support is for conductor rails, normally suspended and carrying sliding take-off power points. The support is mounted within an overall basically 'U' shaped screen (5) and consists of a series of horizontal channels in a single insulating block. The conductors are held only by the slot shape, hence buckling due to heating effect is avoided. Replacement conductors are inserted by sliding them into the channels. The block has two inward facing 'L' shaped walls (25, 26) equally spaced about it axial centre line. Nuts trapped in the slot formed by these walls allow the insulator to be secured to the screen by bolts throught its vertical surface. Two further walls (39, 40) provide side support. Shaped walls on the opposite side trap the waisted conductors (7, 8, 9) and are spaced by a pair of equipment carrying channels.