Qifan Cable leads the way in submarine power cables and services
Submarine power cables are engineered for underwater power transmission in marine environments. Features robust construction with metallic sheath, armor wires, and polyethylene outer sheath for seawater protection. Used for offshore wind farms, island power connections, cross-strait power links, and subsea oil and gas installations. Available in various voltage ratings.
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.
Submarine Cable Construction
8.7/10kV-290/500kV XLPE insulated with or without Optical fiber Submarine cable
| Construction: | Material |
| 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 |
Qifan cable has a team of highly trained product specialist for offshore jobs. Performing feasibility research, cable laying supervision, cable splicing, establishing terminal to its final project commissioning to complete the entire submarine cable system.
Temperature characteristics:
Conductor operating temperature: -15℃~90℃
Min. temperatrue laying condition: 0℃
Conductor emergency operating temperature: 105℃
Conductor short-circuit operating temperature (5s): 250℃
Submarine Cable
Need help?
WhatsApp:
Email:
Leave a Message
Please provide your contact details.
FAQ
Answers To Your Most Common Questions
Find quick answers to common questions below.
This type of cable is widely applied in offshore windfarms, tidal & wave energy farms, the offshore oil and gas industry, power interconnection for remote islands, as well as power transmission crossings across lakes and rivers.
A submarine cable is a special insulated cable laid underwater (seas, oceans, rivers, lakes). It transmits electric power or optical communication signals between islands, coastal cities and offshore wind farms. It has multi-layer reinforced waterproof, anti-corrosion and anti-mechanical damage structures for harsh marine environments.
Submarine power cables: Used to transmit large-capacity electricity, e.g., power supply for offshore wind turbines and island power grids.
Submarine optical fiber communication cables: For cross-sea data, voice and internet signal transmission across oceans.
Heavy anti-corrosion metal sheath (lead alloy or copper sheath) for long-term seawater corrosion resistance;
Multi-layer watertight swelling tapes and water-blocking fillers to stop seawater penetration;
Thick galvanized steel wire armor to resist abrasion from seabed rocks, ship anchors and trawling fishing nets;
Extra anti-biological corrosion outer protective layers to prevent damage from marine organisms.
Excellent long-term water blocking and waterproof performance;
Strong resistance to seawater chemical corrosion and marine organism erosion;
High mechanical strength to withstand anchor impact, trawler dragging and seabed extrusion;
Stable electrical insulation under long-term high water pressure;
Good bending performance for laying on uneven seabed terrain.
Get In Touch
Let’s Build Something
Together.
Our team of multilingual sales professionals and technical specialists are on hand to support you with your cable projects, from specification through to installation. Please use the contact details below to get in touch.
Quick Link
