PBT engineering plastics are widely used in electronic and electrical components, such as connectors, transformers, fuse housings, switches, relays, energy-saving lamps, coil frames, connectors, etc. Plastic components in electronic appliances will cause local overheating and may cause combustion under the conditions of overload, short circuit and electric leakage.
Therefore, the fire risk of plastic components must be reduced. Among them, glow wire ignition temperature (GWIT) is an important index to measure the ignition safety of plastic components
