Study on Flame Retardancy of Enamelled Wires Using a Cone Calorimeter

Abstract The flame-retardancy of enamelled wires was studied by using a cone calorimeter. characteristic parameters including time to ignition, heat release rate, total smoke and so on, were obtained. effect radiation flux on the flame retardancy analyzed. results show that is related content different components in composite insulation layer. Polyimide have good retardant performance, followed corona resistant wire with filler, ordinary polyamide imide polyester has poor performance. In conclusion, rate measured calorimeter can be used for evaluate provide reference development application wires.