Cable having excellent to flame spread and smoke evolution resistance.

摘要

CABLE COMMUNICATIONS IN WHICH THE PLASTIC MATERIAL PROVIDED around each transmission medium is characterized by relatively low dielectric constant. CABLE SHOWS A LOW FLAME SPREAD AND SMOKE GENERATING relatively low while maintaining CIRCUIT INTEGRITY THROUGH A fire retardant composition comprising a mixture of an organic resin and inorganic oxide ESTABLISHING first and second. The constituent inorganic oxide first is characterized by a melting point of about 350 (degrees) C. THE CONSTITUTIONAL INORGANIC OXIDE frit devitrifying SECOND UNDERSTANDS THAT STARTS crystallizing AROUND 654 (degrees) C. Advantageously, when the cable EXPOSED TO HIGH TEMPERATURES, THE MIXED OXIDE INORGANIC cONSTITUENTS first and second melts and forms a layer that stands between scabby plastic material coater CABLE AND OTHER COMPONENTS.