Composite Suspension Insulators for Transmission Line
APPLCATION
•Used in super-high pressure machine power lines,substations station. It has better electrical properties and is more reliable than percelane insulator.
CHARACTERISTIC
•Excellent mechanical strength
•Excellent insulation in contaminated environment
•High water repellency by using silicone
RATING
Specification | unit | Specification | |||
69kV | 115kV | 135kV | |||
Power frequency flashover voltage | Dry | kV | 235 | 365 | 420 |
Wet | kV | 200 | 355 | 400 | |
Lightning impulse flashover voltage (1.2x50㎲) | Positive | kV | 390 | 655 | 670 |
Negative | kV | 390 | 655 | 670 | |
Specified mechanical load (SML) | kN | 140 | 140 | 140 | |
Section length | mm | 780±25 | 1,210±25 | 1,330±25 | |
Leakage distance | mm | 1,795 | 2,762 | 3,110 | |
Dryarcing distance | mm | 610 | 972 | 1,090 | |