Description
Key Features
- High‑strength porcelain insulator with excellent resistance to weathering and tracking
- Injection‑molded EPDM stress cone ensuring reliable electrical stress control
- Spring cone carrier structure preventing relaxation caused by ageing
- Stress cone cover ensuring proper contact with cable semi‑conductive layer
- Multi‑layer sealing structure preventing water seepage and oil leakage
- Optimized rain shed design reducing pollution flashover risks
- Designed for reliable operation in polluted outdoor environments
- Suitable for high‑voltage transmission and substation cable systems
Applications
- Outdoor/Indoor termination of high‑voltage power cables
- Substation cable termination systems
- Transmission and distribution networks
- Industrial high‑voltage power supply systems
- Utility infrastructure requiring reliable cable termination
Voltage and Cable Range
| Rated Voltage | Applicable Cable Cross Section |
| 72.5 kV | 120 – 1600 mm² |
| 126 kV | 240 – 1600 mm² |
| 145 kV | 240 – 1600 mm² |
| 252 kV | 400 – 2500 mm² |
Structural Design
The stress cone is manufactured from imported EPDM rubber using injection molding technology and secured by a spring cone carrier. This structure compensates for mechanical relaxation due to ageing and ensures long‑term electrical stability.
The porcelain insulator is produced from high‑strength inorganic materials providing excellent resistance to weathering, electrical tracking, electrochemical erosion, and moisture penetration. A multi‑layer sealing system prevents moisture ingress and oil leakage during long‑term operation.
Installation Conditions
Suitable for indoor and outdoor installations with operating temperatures between –50°C and +50°C and installation altitudes up to 4000 meters. The termination is designed for environments with pollution class IV.
Standards and Testing
The product design and performance comply with international and national standards including IEC 62067 and GB/T 18890.
Ordering Information
Please contact our sales team before placing an order to confirm the voltage class, cable cross‑section, and required configuration. Customized specifications are available according to project requirements.
