Overhead trolley wire insulated support post

Details Overhead trolley wire insulated support post Overhead trolley wire insulated support post

1984-12-18

1986-12-02

Reeves, Robert B.

Electricity: transmission to vehicles

Conductors

Trolley

174 45R, B60M 120, E04H 1222, H02G 720

Patent

active

046258396

ABSTRACT:
In an overhead electric traction system for railways, a simple and inexpensive cantilever structural assembly includes a pole (1) comprising a lower part (3), an upper part (4) which is separately formed with respect to and is mounted on the lower part and to which a cantilever structure (21) is attached and, inter-connected between the upper end of the lower part and the lower end of the upper part, a tubular insulator (3) of plastics insulating material. The insulator (3) will withstand any normal mechanical loading to which the pole (1) will be subjected while it is in service and is of such a shape as to provide the necessary minimum creepage path between neighboring ends of the lower part (3) and upper part (4) of the pole.

REFERENCES:
patent: 1786631 (1930-12-01), Roe
patent: 1968868 (1934-08-01), Austin

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