Electricity: conductors and insulators – Underground
Patent
1991-12-24
1993-12-14
Broome, Harold
Electricity: conductors and insulators
Underground
174 65R, H02G 900
Patent
active
052704890
ABSTRACT:
A utility pull box for use in electrical power feed and distribution networks. The pull box is made in a hexagonal configuration with six panels of equal width, all having the same included angle between adjacent panels. A plurality of knock-out windows are located in the lower area of the panels and serve as entranceways for cable carrying ducts which cables are to be connected to appropriate buss hardware located in the interior of the utility box.
REFERENCES:
patent: 262630 (1882-08-01), Vail
patent: 343458 (1886-06-01), Hull
patent: 1087366 (1914-02-01), Haase
Broome Harold
Russell Uren John
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