1. It can be applied to crosslinked polyethylene wire, cable insulation and sheath materials. It is an important cross linking agent for crosslinked polyethylene. Its crosslinking technology only need simple equipment and few investment. Moreover, it can be easily controlled when compared with common peroxide crosslinking and radiation crosslinking. Due to excellent electrical properties, heat resistance and stress cracking resistance of the silane cross linked polyethylene, it can be widely applied to wire, cable insulation and sheath materials.