Flame resistance of insulating materials

Insulating materials are materials that can prevent the passage of electric current. Its resistivity is very high, usually in the range of 10~10Ω·m. How is the flame resistance of insulating materials? Let's take a look at it together:
The flame resistance of insulating materials refers to the ability of insulating materials to resist burning when they come into contact with flames or to prevent continued burning when they leave the flames. With the increasing application of insulating materials, the requirements for their flame resistance are becoming more important. People use various means to improve and enhance the flame resistance of insulating materials. The higher the flame resistance, the better its safety.