This product can be widely used in high-voltage transmission lines, can be applied to different pollution level areas, light weight, small size, unbreakable, high tensile strength, dirty performance characteristics. Silicone rubber insulation child different type has different of role, structure height and climbed electric distance also the not same, silicone rubber insulation child main for substation, has good of hate water, and anti-aging sex, and resistance leakage up marks sex and resistance electric corrosion loss sex, has is high of tensile strength and anti-bent strength, its mechanical strength high, anti-impact performance, and earthquake and anti-crisp broken performance good, weight light, and installation maintenance convenient, its upper and lower end Department of installation size and corresponding of porcelain pillar insulation child of installation size same, can swap using.