Electricity: conductors and insulators – Overhead – Towers – poles or posts
Patent
1989-11-13
1991-08-13
Picard, Leo P.
Electricity: conductors and insulators
Overhead
Towers, poles or posts
H02G 304
Patent
active
050398270
ABSTRACT:
An elongated power compartment to be disposed inside of a trenchduct. The compartment having a bottom wall and two side walls. Centrally of the compartment, an opening is formed in the bottom. On each side wall and centrally of the compartment there is a downwardly extending barrier. The bottom opening is to provide access to a power cell in a underfloor raceway and the barriers function to prevent the passing of power cable out of the space beneath the compartment into the low tension side of the trenchduct. The bottom opening is in communication with the raceway valleys.
REFERENCES:
patent: 3721051 (1973-03-01), Fork
patent: 3903666 (1975-09-01), Fork
patent: 4010314 (1977-03-01), Kohaut
patent: 4065896 (1978-01-01), Penczak
patent: 4728750 (1988-03-01), Teslovich
Butler Manufacturing Company
Olsson Frederick J.
Picard Leo P.
Tone David A.
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