Duct apparatus for distribution of isolated power and equipotent

Details Duct apparatus for distribution of isolated power and equipotent Duct apparatus for distribution of isolated power and equipotent

1977-07-22

1979-08-28

Askin, Laramie E.

Electricity: conductors and insulators

Conduits, cables or conductors

Plural duct

174 99B, 174101, 339 22B, 361378, 361426, H02G 506, H02G 304

Patent

active

041661958

ABSTRACT:
In environments utilizing highly explosive or flammable materials and in hospital operating rooms, the use of isolated power and an equipotential grounding system is essential. The distribution of isolated power and an equipotential ground on the surface areas of such enivornments is accomplished by a duct which is essentially an extruded aluminum channel that fastens to the wall with mounting screws. The channel has a main body portion and a cover plate that snap fits to the body portion. The channel is adapted to be utilized in sections, each section being readily attachable to another section. A ground bus bar is carried in the channel to which all ground leads are directly connected. In an alternate embodiment, the duct is adaptable to effectively provide two separate channels by the insertion of a partition which is held in place by holding fingers. The channels of both the single and double duct can be further subdivided into wire retaining regions by spring metal partitions that snap fit into retainers in the interior of the duct.

REFERENCES:
patent: 1905121 (1933-04-01), Adam
patent: 2643363 (1953-06-01), Robertson et al.
patent: 3267336 (1966-08-01), Kussy et al.
patent: 3708607 (1973-01-01), Brode et al.

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