In high-voltage transmission and distribution lines, post insulators are crucial for both insulation and conductor support. They come in various types, including line post porcelain insulators, cross-arm porcelain insulators, and long-rod suspension insulators.
These insulators are known for their puncture resistance, high mechanical strength, excellent insulation properties, and resistance to pollution. They offer safety and reliability in operation, ease of maintenance, long operational life, and cost-effectiveness.
| Part No. | Rated Voltage (kV) |
Cantilever Strength (kN) |
Creepage (mm) |
Arcing Distance (mm) |
Length (mm) |
|---|---|---|---|---|---|
| 1.1-2010 | 33 | 12.5 | 737 | 265 | 432 |
| 1.1-2020 | 66 | 12.5 | 1346 | 489 | 635 |
| 1.1-2030 | 132 | 12.5 | 3625 | 1305 | 1405 |