Submarine Cable

submarine power cable is a major transmission cable for carrying electric power below the surface of the water. It is also possible to use submarine power cables beneath fresh water.

Yichang Qifan Cable Co.,ltd.,a wholly-owned subsidiary of Shanghai Qifan Cable.,ltd. Was established on October 2020. with a registered capital of RMB200 million, The company is close to the world-famous Three Gorges Power Station, It currently has about 300 employees, The plant covers an area of about 450,000 square meters and has an annual production capacity of more than RMB 3 billion, It has a 400-meter-long submarine cable transport plank road leading to the Yangtze River docks.

Yichang Qifan Cable has a VCV line with tower height measuring more than 180 meters and a series of advanced high-voltage cable and submarine cable production equipment capable of manufacturing onshore and submarine power cable of 500KV and below, They include

√ Two Finnish MAILLEFER high-voltage cable VCV production lines

√ A German TROESTER high-voltage cable VCV production line

√ Two Finnish MAILLEFER medium-voltage cable CCV production Lines,

√A French POURTIER frame type wire standing machine and a drum twister machine

Construction

1. Conductor: Copper Conductor
2. Conductor Screen: Semi-conductive materials extruding layer
3. Insulation: XLPE
4. Insulation Screen: Semi-conductive materials extruding layer
5. Waterproof Layer: semi-conductive waterproof strip
6. Metal Screen: Lead Sheath
7. Sheath: PE
8. Fibre-optic Element: Fibre optic cable.
9. Separator: Binder tapes
10. Lapped inner layer: geled fabric and bitumen
11. Amouring: Galvanized steel wires filled with bitumen compound.
12. Lapped inner layer
13. Galvanized steel wires filled with bitumen compound.
14. Serving

Reference Standards
CIGRE Recommendations: CIGRE 496, CIGRE 623.
Types & Purposes
For offshore wind farm
-Export cable to transport the total generated power from offshore substation to onshore substation
 For interconnection
-Interconnecting grids of countries
-Power supply from mainland to isolated islands