Conductor: Multi-Unit bare copper wire strands Insulation: Polyvinyl chloride (PVC) Sheath: Polyvinyl Chloride (PVC) Rated Voltage: UO / U for 300/500 V Temperature Rating: Long-term temperature should be no more than 70 Flame retardant cable (wire) is not the characteristics of fire or after the fire and to slow the spread of flame control within a certain scope, the use of fire-retardant properties in the higher occasions. Flame retardant cable (wire) is divided into categories A, B and C categories, such as three levels, Class A fire-retardant properties of the optimal. 100m/roll.