The outer insulation of termination with composite insulator is a composite sheath, which is integrally compounded of one glass fiber reinforced epoxy resin tube and silicone rubber rain-shed, both sides installed with aluminum alloy flange of strong corrosion resistance. Composite sheath has many advantages compared with traditional porcelain sheath, so it is the best substitute and has been accepted gradually all over the world.
Product characteristics
1. Safety and explosion protection, so it will not explode becasue of internal flashover, reducing fault risk effectively, especially suitable for densely populated areas or electrical equipment for centralized place.
2. Silicone rubber with good fouling resistance performance and aging resistance.
3. Light weight, about half weight of outdoor termination with porcelain insulator, so it is easy to install.
4. Good anti-seismic property.
5. Unbreakable, so it is convenient for transportation and installation to improve efficiency.
6. AII the prefabricated stress cones are 1 00 % inspected according to the standard before leaving the factory.
Technical specification
Item |
Parameter |
Rated voltage U0/U |
64/110kV |
Highest operating voltage Um |
126kV |
Impulse voltage withstand level |
550kV |
Insulation filling material |
polyisobutene |
Conductor connection mode |
crimping |
Applicable ambient temperature |
-40℃ to +50℃ |
Altitude |
≤1000m(should make mark if ≥1000m) |
Operative standard |
GB/T 11017.3 IEC60840 |
|
Item |
Parameter |
Porcelain sheath |
Outer insulation |
silicone rubber with rainshed |
Creepage distance |
≥4100mm |
|
Mechanical strength |
horizontal≥2kN |
|
Max innder pressure |
2Mpa |
|
Tolerance contamination level |
IV level |
|
Position of installation |
outdoor,vertical ±150 |
|
Weight |
About 200kgs |
|
Suitable for cable section area |
240mm2 to 1600mm2 |