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FIIG:  A23900

Entry Date:  Nov-05-1982

Concept:  

Status:  A

Applicability:  A

Type:  0

Definition:  A replaceable device in panel form designed to eliminate radio frequency and electromagnetic interference from the air passing through it. The elimination of interference is accomplished by reflection and/or absorption of radiated electromagnetic energy by media constructed of electrically conductive material, in honeycomb or louvered form confined in a frame, with electrically conductive gasketing (or self-gasketing feature) to provide electrical contact with the cabinet on which it is installed or mounted. It may be used in air ventilating or heating ducts, lighting aperture and the like. It may have a filter for dust protection. It may include a drip-proof design feature. Excludes electrical filtering devices which employ capacitor, resistor and coil components to eliminate or suppress conducted electromagnetic energy. Excludes: SHIELD,TEST.

Basic INC:  70203

Basic Name:  PANEL

Description:  1. A single flat-surfaced item upon which are mounted such items as switches, variable resistors, relays, meters, circuit breakers, fuses, jacks, and the like, and may be used to perform functions such as control, protection, measuring, and switching. It may or may not have associated framework and/or inclosure. Do not use if all of the items mounted thereon have the same basic name or for items for which a more specific name can be found in this index. 2. An item essentially flat in shape, which may be designed by size, shape, and thickness to have mounted upon it such electrical items as switches, variable resistors, relays, meters, circuit breakers, fuses, jacks, and the like. It may have holes drilled or cut in it to accommodate items, but will have no items mounted on it except bracket(s) or other facilities for its own mounting or support.