Property Specification
Type: Substation Composite Post Insulator
Features: Manufactured with high-quality hydrophobic silicone rubber sheds over a robust metal core, this unit delivers superior insulation performance along with outstanding resistance to electrical tracking, UV aging, and environmental corrosion. Its self-cleaning surface properties prevent moisture film formation and pollution-induced flashovers, ensuring maintenance-free operation in heavily polluted substation environments. Designed with flexible mounting interfaces, the insulator’s top and bottom end-fitting dimensions can be customized for seamless retrofit installation in place of standard legacy porcelain post insulators.
| System Rated Voltage (kV) | Specified Mechanical Load (kN) | Structural Height (mm) | Dry Arc Distance (mm) | Minimum Creepage Distance (mm) | Impulse Withstand Level (kV) | Wet Power-Frequency Withstand (kV) |
| 10 | 4 | 215 | 125 | 290 | 75 | 42 |
| 24 | 8 | 300 | 220 | 750 | 150 | 65 |
| 35 | 6 | 450 | 360 | 946 | 185 | 95 |
| 66 | 6 | 760 | 630 | 1886 | 410 | 185 |
| 66 | 8 | 760 | 630 | 2010 | 410 | 185 |
| 110 | 10 | 1220 | 1080 | 3530 | 500 | 230 |
| 220 | 10 | 2440 | 2200 | 7060 | 1000 | 395 |
