Submarine Cable

8.7/10kV-290/500kV XLPE insulated with or without Optical fiber Submarine cable

Application:

This submarine cable is used for connecting between land islands, crossing rivers or harbors, connecting drilling platforms from land or connecting drilling platforms to each other, etc. Single-core submarine cables are often used for large island connections for permanent populations, large capacity transmission across rivers and straits. Three-core submarine cables are often used for island power supply and offshore wind turbines.

Construction:

1.    Conductor - Plain annealed class 2 circular compacted conductor copper conductor

2.   Conductor screen – Semi-conductive compound  

3.    Insulation - Cross linked polyethylene (XLPE)

4.    Insulation screen - Semi-conductive compound

5.   Communication unit - Optical fiber cable

6.  Filler - Fan-shaped filling

7.    Watertight Bedding - Semi-conducting water swellable tape 

8.    Metal screen - Lead alloy sheath 

9.  Inner sheath - Semi-conductive PE sheath

10.   Binder tape - Polymeric tape

11  Inner serving - Polypropylene yarn

12  Armor - Galvanized steel wire

13.  Outer serving- Polypropylene yarn

Cross Section：

1 core; 50~3500mm2

3 core; 50~800mm2

Temperature characteristics:                    

Conductor operating temperature: -15℃~90℃                  

Min. temperatrue laying condition: 0℃                 

Conductor emergency operating temperature: 105℃

Conductor short-circuit operating temperature (5s): 250℃

Standard:

Cable design: JB/T11167、IEC63026

Conductor: GB/T 3956, IEC 60228