COMPOSITELY INSULATED CONDUCTOR CABLE FOR USE IN BUILDINGS

摘要

DOUGHERTY-11 COMPOSITELY INSULATED CONDUCTOR CABLE FOR USE IN BUILDINGS 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. This construction results in a cable which is not only fire retardant but in one which has 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.