Telecommunications cable

Details Telecommunications cable Telecommunications cable

1994-06-16

1996-10-08

Kincaid, Kristine L.

Electricity: conductors and insulators

Conduits, cables or conductors

Insulated

174110PM, 174110FC, 174120R, H01B 734

Patent

active

055633773

ABSTRACT:
A telecommunications cable having a cable core in which each conductor is surrounded by an individual dual layer insulation of an inner layer of flame retardant polyolefin and an outer layer of fluorinated ethylene propylene. The cable is for plenum chamber usage in which smoke is to be minimized. Although the flame retardant polyolefin is a known smoke generating substance which does not satisfy plenum test smoke requirements, its use in this structure is entirely suitable for plenum chamber use because little or no smoke is actually generated as the outer layer protects the inner layer from combustion.

REFERENCES:
patent: 3571490 (1971-03-01), Bunish
patent: 3650827 (1972-03-01), Brown et al.
patent: 4456654 (1984-06-01), Kotain
patent: 4500748 (1985-02-01), Klein
patent: 4549041 (1985-10-01), Shingo et al.
patent: 5010210 (1991-04-01), Sidi et al.
patent: 5032321 (1991-07-01), Breant
patent: 5162609 (1992-11-01), Adriaenssens et al.
patent: 5173960 (1992-12-01), Dickinson
patent: 5253317 (1993-10-01), Allen et al.

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