What is a submarine cable?

Submarine cables are cables wrapped in insulating material and laid on the sea floor for telecommunications transmission. It can divides into submarine communication cables and submarine power cables.

Submarine communication cables

It is mainly used for long-distance communication network, usually used in long-distance islands, cross-sea military facilities and other important occasions. Modern undersea communications cables use optical fiber to carry telephone and Internet signals.

Submarine power cables

The laying distance is much shorter than that of communication cables. It is mainly used for connecting between land islands, crossing rivers or harbors, connecting drilling platforms on land or connecting drilling platforms to each other.

Submarine CABLE laying mainly includes three stages: the cable route survey and cleaning (front), submarine cable laying (middle) and buried protection (back).

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