Electric panel board having an improved extruded base pan config

Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor

Patent

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Details

361361, 361376, H02B 104

Patent

active

045368236

ABSTRACT:
An improved panel board construction is described, including an extruded insulative base pan which slidably engages at least one main-line bus bar and a neutral connector element and which has a plurality of electrical contact points. The base pan also prevents current flow through the base pan between any two of the contact points of the main-line bus bars. A protrusion extending from the base pan having a tortuously formed surface thereon prevents current flow through the base pan. The panel board is provided with interchangeable main-line lugs which may be used to directly contact the main-line bus bars or, alternatively, support a main-line circuit breaker between the lugs and the main-line bus bars. The base pan is symmetrically formed by an extrusion process so that it may be adaptable for use with a variety of panel board sizes simply by shearing the base pan to form the appropriate length.

REFERENCES:
patent: 3349292 (1967-10-01), Meacham
patent: 3375411 (1968-03-01), Mrowka
patent: 3588620 (1971-06-01), Wasileski
patent: 4002388 (1977-01-01), Menocal
patent: 4118754 (1978-10-01), Duggan
patent: 4137424 (1979-01-01), Hesse et al.
patent: 4167768 (1979-09-01), Baker et al.
patent: 4167769 (1979-09-01), Luke et al.
patent: 4231633 (1980-11-01), Luke et al.
patent: 4251851 (1981-02-01), Diersing et al.

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