Armorless undersea cable, start to finish.
Fiber optic cable gets wrapped in steel wire on spools, then gets a copper sleeving welded over it in the second shot.
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Then the copper coated spools go to extrusion line, gets a polymer coating, then cooled in water trays that run forever. You can see the finished product overhead.
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Goes into huge creels underneath, then the ends are tested here.
Then down the elevated high line a thousand feet to the harbor to be loaded onto a ship.
About 800 miles of undersea cable on that load, light duty stuff. Most the armorless cable has multiple layers of protection, armored cable is usually coated again with steel and tar.
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