Shanghai Qifan Subsea Composite Power Cable (Lead Sheath) 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

System voltage: U≤33kV

Conductor: Circular stranded copper or aluminum conductor constructed of round or profiled wires.

Insulation: Cross-linked polyethylene (XLPE) or TR-XLPE

Metallic Screen: Copper wire, copper tape and lead alloy sheath , etc.

Radial water barrier:  Semi-dry design: Laminated aluminum foil

                                       Dry design: Lead alloy sheath

                                       Wet design: PE sheath

Armor: Three-core: Galvanized steel wire

      Single-core: Magnetic galvanized steel wire,

                         Non-magnetic HD copper wire, stainless steel wire

Armor bedding & serving: Polypropylene yarn
 

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