Flame resistant insulated electrical wire and cable...

Details Flame resistant insulated electrical wire and cable... Flame resistant insulated electrical wire and cable...

H - Electricity

01

B

26/129, 337/82

H01B 3/00 (2006.01) H01B 3/30 (2006.01)

Patent

CA 1149481

ABSTRACT OF THE DISCLOSURE A flame resistant insulated electrical wire and/or cable construction formed by wrapping a wire or cable conductor with a heat resistant flexible refractory tape comprising a porous base fabric, preferably a knit fiberglass fabric that has been coated and impregnated with refractory materials. These refractory materials are bonded to both the surface and interstices of the base fabric by means of a bonding agent, such that the fabric remains flexible and retains its stretch properties. In the presence of relatively extreme temperature and heat (e.g., above 1750°F.), the bonding agent will decom- pose without flaming, while the refractory materials will fuse into the softened surface of the knit fiberglass base fabric forming a high temperature resistant structure with ceramic qualities and insulative properties.

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