Enclosed switchboard having instruments needed for regular inspe

Details Enclosed switchboard having instruments needed for regular inspe Enclosed switchboard having instruments needed for regular inspe

1979-03-15

1981-02-03

Tolin, Gerald P.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

361338, 361336, 73431, H02B 104

Patent

active

042492270

ABSTRACT:
An enclosed switchboard in which an upper chamber and a lower chamber are formed within a switchboard frame in the form of a box for accommodating electrical apparatus such as circuit breakers. At the free surfaces of the frame facing the two chambers a top level door and a bottom level door facing the two chambers are mounted so as to be capable of being opened and closed separately from one another. A middle level door for the mounting of instruments is mounted between the top level door and bottom level door, and instruments needed for regular inspection and control, for instance meters, operating switches, indicator lamps and the like, are mounted on the door surface of the middle door.

REFERENCES:
patent: 2542853 (1951-02-01), Wills
patent: 2856450 (1958-10-01), Padgett
patent: 3256479 (1966-06-01), Edwards
patent: 3631324 (1971-12-01), Jones
patent: 3824860 (1974-07-01), Harden
patent: 3829773 (1974-08-01), Nigg

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