Compositely insulated conductor riser cable

Details Compositely insulated conductor riser cable Compositely insulated conductor riser cable

1981-07-28

1983-10-25

Kucia, R. R.

Electricity: conductors and insulators

Conduits, cables or conductors

Insulated

174 34, 174107, 174110V, 174121A, H01B 734

Patent

active

044120940

ABSTRACT:
A cable which is suitable for use as a riser cable in buildings comprises a plurality of conductors each of which is covered with a composite insulation. The composite insulation comprises an inner layer of an expanded polyethylene material and an outer layer of a polyvinyl chloride material with the percent expansion of the inner layer and the thickness of the outer layer being such as to optimize several cable parameters. The resultant cable is one which has excellent fire-retardant properties such as, for example, an unusually low fuel content. Advantageously, this same cable lends itself to color coding for inside wiring and is capable of having a relatively high pair count density. All these parameters are optimized within the framework of specific transmission requirements.

REFERENCES:
patent: 3209064 (1965-09-01), Cutler
patent: 3644659 (1972-02-01), Campbell
patent: 4058669 (1977-11-01), Nutt et al.
patent: 4174236 (1979-11-01), Dougherty et al.
patent: 4262164 (1981-04-01), Nutt et al.

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