... twisted with non-alkli fiberglass yarn and coated with special silicone resin under high temperature,with good dielectric,self-extinguish,which ... is widely used for class H electric machinery,electrical appliance,heating equipments etc.Diameter:05mm--30mmBreakdown Voltage:1.5kv--7.0kvTemperatur ... Range:-60°C--250°CColor: white,red,black,yellow,ect. silicone coated glass fiber insulation sleeve