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- Technology
- Marine Cables
The cables needed for a ship to obtain the power it needs to navigate waterways are generally called marine electric cables. These cables are used mainly in internal ship wiring for power distribution, control systems, and communications. We use electric wires compatible with each ship classification society’s regulations, such as the Japanese maritime association known as the Nippon Kaiji Kyokai and the Society of Lloyd’s Register of British and Foreign Shipping. All regulations prescribed by ship classification societies follow the international IEC standard and the Japanese standard JIS C 3410 (shipboard cables and wiring) also conforms to IEC, so it is approved by the ship classification societies of each country.
Technology used in this product
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Insulation technology
The innermost layer of a cable is the conductor (copper wire), which is insulated with an EP rubber coating. Hien uses the tubing method to sheath the conductor with tube-shaped rubber in a hot extrusion process. Basically, this method requires the coating of the round conductor with rubber in a concentric circular shape.
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Vulcanization technology
To ensure elasticity and strength in the rubber insulating the conductor, the vulcanization process uses a vulcanizer (autoclave) developed independently by Hien.
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Stranding technology
A stranding machine (buncher) is used to strand anywhere from 2 to 77 insulated cores that have been vulcanized. In order to finish the final product into as round a shape as possible, filler material is used to occupy space around the cores and using binding tape manufactured in-house at Hien, the conductor wires are stranded in a bundling process.
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Coating technology
The surface of the stranded product is then uniformly coated with a concentric shaped resin. Different types of resin are used depending on the application for the cable. We are capable of handling wire diameters from ø 1 mm to ø 70 mm and by using different resin coating methods, we can either purposely create an overhang in the inner cable (stranded wire) or conversely, create a smooth cylindrical shape.
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Braid armor technology
To prevent external scratches or burns from welding sparks, a process is used to shield the steel or copper alloy wires in braided armor, which is the most distinctive structure and technology in marine electric cables.
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Flame resistance / Durability technology
In accordance with the International Convention for the Safety of Life at Sea (SOLAS), Hien manufactures cable that passes the IEEE 45 flame test and in the event of a ship fire, the cables are flame resistant. Also, because it is a halogen-free cable, should it burn, no harmful gases are generated.
