Did you know that submarine cables transmit 95% of all data? Cabling laying and transporting, however, are very complex operations. 5 things you should know about using turntables.
1. What is a turntable?
In offshore idiom, a turntable is also known as a cable carousel. It is a device developed for cable transport and cable laying at sea. Imagine a huge round construction that can rotate in various speeds, fixed on a vessel. On a foundation frame a ‘basket’ is mounted, able to load cables of different lengths, diameters and types (power cables, umbilical cables, fiberoptics). Depending on the selected turntable, the basket can be raised or lowered via jacking cylinders on the wheel sets so that during vessel transit the basket can be lowered into storage/sea fastening position. In case of cable laying at sea, the cable is lifted out of the basket by means of a ‘gooseneck tower’ on board of the vessel and precisely lowered by chute into the water, to eventually be deposited on the seabed.
2. Is cable laying big business?
Yes, it is. Submarine communications cables transmit ninety-nine percent of international data. In total, they are hundreds of thousands of miles long and can be as deep as the Everest is tall. On top of that, it’s more than a matter of dropping wires with anvils attached to them: the cables must generally be run across flat surfaces of the ocean floor, and care is taken to avoid coral reefs, sunken ships, fish beds, and other ecological habitats and general obstructions. The diameter of a shallow water cable is about the same as a soda can, while deep-water cables are much thinner—about the size of a Magic Marker. Cables located at shallow depths are buried beneath the ocean floor using high-pressure water jets. Though per-mile prices for installation change depending on total length and destination, running a cable across the ocean invariably costs hundreds of millions of dollars.
3. What is special about the turntables offered by Oceanteam Solutions?
In general, most turntables are fixed inseparable on a vessel. OTS’ turntables on the other hand are of a modular design, and can be build on an existing vessel according to client specifications and adapted in diameter to the size of the ship. All the components and all necessary equipment are prearranged in standard 20Ft. sea containers and self-sustained units, which means a complete turntable can be sent to the client anywhere in the world at regular sea fare rates.
4. Can Oceanteam Solutions offer additional services?
Unlike many other providers, Oceanteam can also provide long-term cable storage on shore. On top of that, Oceanteam features an on shore cable connecting/jointing facility, equipped with air and temperature controlled environment including two turntables.