Faber kabel silicone insulated wires sif fire retardant heat resistant black faber kabel 030970 the faber kabel 030970 is a flame and heat resistant cable ideal for use in environments where the temperature is above 55degc the cable has a fine tinned bare copper conductor with a silicon rubber outer sheath the cable has a voltage rating of 500v and an operating temperature range of 60degc to 180degc applications for internal wiring of lamps heating equipment and electrical