PVC wire catches fire very easily, generate thick black smoke and release corrosive gases. It has the capability to destroy any electronic equipment.
FRLS wire is the refined form of PVC wire. It can resist the fire upto some extent but cannot stop the smoke from being generated. It is less destructive as compared to the PVC wire.
ZHFR wires are the complete solutions to your fire hazards. It is environment friendly and generates transparent negligible smoke, which saves the lives and assets.