Three advantages of Early Supplier Involvement

May 30, 2019 11:17:00 AM / by Jeroen Romijn posted in ROV Cables, Innovation, Deep-sea cables, Cable design, Cable solutions, experience, service, supplier, manufacturing, development, research, test

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Why is it important to involve your cable supplier early in the development of your new product or equipment? At DeRegt we often see customers who have succeeded in developing a great system, but who simply forget to think of the cables involved, or underestimate the complexity of them. 

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Blue Nodules: harvesting at 5.5km depth

Mar 8, 2019 4:03:38 PM / by Peter Brussee posted in Naval cables, Innovation, Raw materials, Subsea, Deep-sea cables, Deep sea mining

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The EU aims to reduce dependency on imports of raw materials. Large quantities of raw materials can be found in deep sea Polymetallic Nodules. Polymetallic Nodules contain relatively high concentrations of Nickel, Copper and Cobalt. Cobalt is especially valuable to harvest since it is used in batteries for electric cars. Nodules occur at any depth, but the highest abundance has been found between 4,000 and 6,000m. How do you harvest these nodules at such a large depth?DeRegt was asked to join an EU funded consortium of 14 companies. Industry, research institutes and service companies across seven different countries joined hands to solve the question on how to harvest them, avoiding serious harm and minimizing the environmental risks.

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How do we prevent dangerous overheating in your cable?

Feb 15, 2019 10:13:50 AM / by Cansın Yüksel Pelk posted in ROV, ROV Cables, Naval cables, Innovation, Umbilical products, Thermal analysis tool

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When working with cables in shallow water, relatively less of the cable will be submerged while the rest of it is wound on a drum on the vessel. In deep water applications, where relatively more of it is deployed, water provides a cooling effect for the cable when it is subjected to electrical currents. In contrast, in the shallow water applications, layers of cable are spooled on a drum on the vessel and these layers are unable to benefit from the cooling effect. Eventually, the heat caused by the electric current flowing through the cable builds up. 

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