Submarine cable is a wire wrapped with insulating material, which is laid on the seabed and underwater for telecommunication transmission. Modern submarine cables use optical fibers as the material to transmit telephone and Internet signals.
Submarine communication cables are mainly used in long-distance communication networks, usually between distant islands, and in more important occasions such as cross-sea military facilities. The laying distance of submarine power cables is much shorter than that of communication cables. Under normal circumstances, the use of submarine cables to transmit power is undoubtedly more expensive than overhead cables of the same length, but it is often more economical than using small and isolated power stations for regional power generation, and the benefits of application in offshore areas are more. In countries with many islands and rivers, such cables are widely used.
Compared with terrestrial cables, submarine cables have many advantages: first, laying does not require digging tunnels or supporting them with brackets, so the investment is low and the construction speed is fast; Affected by the damage of natural environment such as wind and waves and the interference of human production activities, the cable is safe and stable, with strong anti-interference ability and good confidentiality.
Malaysia
