Flame retardant cable commonly used insulating materials and the main performance

The performance of the flame retardant cable is determined by the oxygen index of the mica insulation sheets used, and the higher the oxygen index, the better the flame retardant performance of the flame retardant cable. But at the same time will lose part of other performance, increase the difficulty of operation and material costs.
Flame-retardant cable through the standard clock C class experimental requirements on the requirements of the oxygen index of vulcanized fiber sheet to 30, and if you want to achieve Class B and Class A sheathing materials and fillers are used flame retardant materials.