Inventors:
Robert N. Gingue - Westminster MA
Charles A. Glew - Framingham MA
Anthony E. Sansone - Leominster MA
Homaira K. Naseem - Boylston MA
Assignee:
AlphaGary Corporation - Leominster MA
International Classification:
H01B 728
Abstract:
A flame retardant and smoke suppressant electrical insulation composition for an electrical conductor comprises an inner layer and an outer layer. The inner layer, which contacts and surrounds the conductor, comprises a foamed polymeric material selected from the group consisting of polyolefins and polyurethane. The outer layer, which contacts and surrounds the inner layer, comprises a halogenated polymeric material and at least one outer layer additive to render the outer layer flame retardant and smoke suppressant. A flame retardant and smoke suppressant insulated electrical conductor comprises a length of electrically conductive material surrounded by the insulation composition. A flame retardant and smoke suppressant jacketed electrical cable comprises a plurality of insulated electrical conductors. An outer jacket, which substantially surrounds the insulated electrical conductors, comprises a halogenated polymeric material and at least one outer jacket additive to render the outer jacket flame retardant and smoke suppressant.