Composite post insulators of different types have different functions, structure height and creepage distances vary, composite post insulator is mainly used for the substation, with good hydrophobicity, aging resistance, resistance to tracking and erosion of electrical resistance with high tensile strength and flexural strength, high mechanical strength, impact resistance, shock and anti-brittle fracture of good performance, light weight, easy installation and maintenance, installation size of its upper and lower ends of the respective porcelain post insulators same mounting dimensions, can be used interchangeably. Composite post insulators can effectively use the narrow corridor open pressure transmission, suitable for urban and technological innovation, and can reduce the tower height, can save a lot of manpower, material and financial resources, because of its high flexural strength, to prevent cross arm porcelain prone The cascade fracture accident, porcelain cross arm is irreplaceable products; small size, light weight, shockproof, high impact resistance, without manual cleaning, to provide protection for safe operation. This product is a whole stick design, compact structure, high quality, weight is the same level of porcelain and glass insulators 1/10, transportation and installation is very easy. Technical Data Sheet Model Rated voltage kV Rated bending load kN structural height (mm) ± 10 insulation distance (mm) nominal minimum creepage distance (mm) full-wave lightning impulse withstand voltage kVp 1 min power frequency wet withstand voltage kV FZSW4 -10/4 10 4 215 ± 10 140 311 75 42 FZSW4-20 / 6 20 6 260 ± 10 195 470 150 65 FZSW4-35 / 6 35 6 450 ± 10 378 926 185 95 FZSW4-35 / 8 35 8 450 ± 10 380 966 185 95 FZSW4-66 / 6 66 6 760 ± 10 634 1890 410 185 FZSW4-66 / 8 66 8 760 ± 10 630 2020 410 185 FZSW4-110 / 8 110 8 1220 ± 15 1070 3988 550 230 FZSW4-110 / 10 110 10 1140 ± 15 1030 3988 550 230 FZSW4-220 / 8 220 8 2260 ± 20 2200 7800 1050 395