ong-termoverheataging deterioration;in addition,also havegood thermal conductivity,hightidelightningresistance and high mechanical strengthand

live partsisolated.Theinsulating material is firstshould have highinsulation resistanceand compressive strength,and can avoid theoccurrence ofleakageong-termoverheataging deterioration;in addition,also havegood thermal conductivity,hightidelightningresistance and high mechanical strengthandprocessingfeatures such as easy.According to the above requirements,common insulating materialsperformance index of theinsulating strength,tensile strength