The fiber in metal tube (FIMT) provides effective protection against water ingress, mechanical & external forces and prevents hydrogen induced loss. The inner armor consists of two layers of high strenght steel wires surrounded by compound. The copper conductor can be used to apply an electrical tone for cable tracking, depth of burial measurement and fault location. The LW cable core can be armoured with single or double layers of GSW to give the cable increased tensile strength, excellent abrasion protection and enhanced crush and impact resistance. Aspalt is added onto the armor, rope and sheath. For application it is suitable for large capacityy optical transmission system with various maximum meters water depth.
How It Works
Modern submarine cables use fiber-optic technology. Lasers on one end fire at extremely rapid rates down thin glass fibers to receptors at the other end of the cable. These glass fibers are wrapped in layers of plastic (and sometimes steel wire) for protection. For most of its journey across the ocean, a cable is typically as wide as a garden hose. The filaments that carry light signals are extremely thin — roughly the diameter of a human hair. These fibers are sheathed in a few layers of insulation and protection. Cables laid nearer to shore use extra layers of armoring for enhanced protection. Nearer to the shore cables are buried under the seabed for protection, which explains why you don’t see cables when you go the beach, but in the deep sea they are laid directly on the ocean floor. Of course, considerable care is taken to ensure cables follow the safest path to avoid fault zones, fishing zones, anchoring areas, and other dangers. To reduce inadvertent damage, the undersea cable industry also spends a lot of time educating other marine industries on the location of cables. You rarely hear about these cable faults because most companies that use cables follow a “safety in numbers” approach to usage, spreading their networks’ capacity over multiple cables so that if one breaks, their network will run smoothly over other cables while service is restored on the damaged one. Accidents like fishing vessels and ships dragging anchors account for two-thirds of all cable faults. Environmental factors like earthquakes also contribute to damage. Less commonly, underwater components can fail. Deliberate sabotage and shark bites are exceedingly rare.
Our Product
