Plenum cable

Details Plenum cable Plenum cable

1995-03-28

1996-05-07

Nimmo, Morris H.

Electricity: conductors and insulators

Conduits, cables or conductors

Insulated

174 34, 174110FL, 174110PM, 174121A, H01B 1102

Patent

active

055148379

ABSTRACT:
A plenum cable having a plurality of insulated conductors enclosed by a jacket. Each of the insulated conductors or twisted-pair conductors has a dielectric constant that varies .+-.0.25 from any other insulated conductor or twisted-pair conductor. In the preferred structure at least one twisted-pair conductor has flame retardant polyethylene or flame retardant polypropylene insulation and at least one other twisted pair conductor being insulated with fluorinated ethylene propylene, tetrafluoroethylene, or ethylenechloro-trifluoroethylene.

REFERENCES:
patent: 4041237 (1977-08-01), Stine et al.
patent: 4500748 (1985-02-01), Klein
patent: 4711811 (1987-12-01), Randa
patent: 4963609 (1990-10-01), Anderson et al.
patent: 5162609 (1992-10-01), Adriaenssens et al.
patent: 5202946 (1993-04-01), Hardin et al.
patent: 5253317 (1993-10-01), Allen et al.

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