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A cable is usually a rope-like cable consisting of at least two stranded groups of wires each, each insulated from each other and often twisted around a center, with a highly insulating covering covering over the entire outskirt.
According to the use and material, it is divided into:
Power cables, control cables, compensation cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, etc. They are all composed of single or multiple strands of wire and insulation, which are used to connect electrical circuits, electrical appliances, etc.
Therefore, submarine cable is a kind of cable, and submarine cable can be called cable, but not the other way around.
Hope it helps, thank you.
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Submarine cables are wires wrapped in insulating material that are laid on the seabed to set up telecommunications between countries.
The submarine cable system is mainly used to connect the fiber optic cable and the Internet, which is divided into two parts: shore equipment and underwater equipment, and the submarine cable is the most important and most vulnerable part of the underwater equipment. Seawater can prevent the interference of external optical and magnetic waves, so the signal-to-noise ratio of submarine cables is high; No time delay is felt in submarine cable communications. Submarine cables are designed to last 25 years, while satellites run out of fuel within 10 to 15 years.
The optical fibers of the submarine cable are located in a U-shaped groove plastic skeleton, which is filled with ointment or elastic plastic to form a fiber core. Submarine cables have a tight, multi-layered structure that protects optical fibers, prevents breakage, and prevents seawater intrusion.
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The main reasons why 110kV submarine cables are not commonly buried are as follows:
1. High construction cost. The construction cost of 110kV submarine cable is high, requires large investment, is more complex, time-consuming, and difficult to implement.
2. There are many key technical difficulties. There are many key technical difficulties in 110kV submarine cable technology, such as the selection of insulation materials, dust removal, anti-corrosion, impact resistance, etc., which have high requirements for the R&D team, many technical difficulties, and difficult implementation.
3. High maintenance cost. The maintenance cost of 110kV submarine cable is high, due to its special environment, it needs regular inspection and maintenance, which is more complicated, and a lot of manpower and financial resources are required to throw bends.
4. The development cycle is long. The development cycle of 110kV submarine cable is long, from R&D to implementation, it requires more time and energy, and due to environmental limitations, R&D is difficult and the development cycle is long.
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Submarine cables are wires wrapped with insulating materials that are laid under the seabed and rivers for telecommunication transmission. Modern submarine cables use fiber optics as the material to transmit** and Internet signals. The world's first submarine cable was laid between England and France in 1850.
China's first submarine cable was completed in 1888 and consisted of two, one between Chuanshidao in Fuzhou and Huwei (Tamsui) in Taiwan, which was 177 nautical miles long, and the other from Anping, Tainan, to Penghu, which was 53 nautical miles long. ]
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Submarine cable: A cable wrapped in an insulating material.
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