FAI : Outstanding Features of Fujikura's Power Transmission Systems

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Large-capacity Systems, including ultra-high voltage transmission

Since 1915, Fujikura has designed, produced, supplied, and laid all types of underground power transmission cables, including low-pressured oil-filled cable, high-pressured oil-filled cable, and cross-linked polyethylene cable, throughout the world. In the field of submarine cable also, the company has supplied and laid cables for historic large projects on a global scale. Because of these achievements, Fujikura's technology in the power cable industry has been acknowledged as a key infrastructure that will play an important role in transmitting electric energy in the 21st century.

Up-to-date production technology for cross-linked polyethylene cable

Insulation materials free of contamination are a key for ensuring the high quality of cross-linked polyethylene cable. Because Fujikura's cross-linked polyethylene cables are produced using ultra super clean system, they have won a reputation for high reliability from customers.
Further, the FZCV process, which is a perfectly dry curing process originally developed by Fujikura, has been acknowledged worldwide as an excellent production process. This process uses silicone oil as the curing and cooling medium. Thanks to these technologies, Fujikura has become a leader in extra-high-voltage cross-linked polyethylene cable technology, as well as the first company to supply 275 kV to 500 kV cross-linked polyethylene cables.
The company's Tokyo Bay Plant is capable of producing ultra-long cables of several thousand meters in length with no joints.

Oil-filled cable technology with a long history and high reliability

Since its first shipment of 55kV oil-filled cable in 1934, fujikura has designed, produced, supplied and laid a total of about 5,100 km (as of 1999) of oil-filled cable worldwide.
The maximum voltage of the supplied cables is as high as 500 kV, and the first such cable has been operating without any troubles for over 20 years, proving the high reliability of Fujikura's cable.
Fujikura is also an expert of high-pressured pipe cables, and has the top market share in Japan. In addition, the company's pumping plant technology, which is indispensable for high-pressured pipe cables, plays an essential role as the oil feeding system necessary for the operation of such cables.

Submarine cable production technology that provides ultra-long cables

Fujikura's Tokyo Bay Plant is the company's newest power cable production plant, which started production in 1992. The plant has production facilities installed exclusively for submarine cables and is furnished with a private peer for shipping cables. The facilities of Tokyo Bay Plant are designed for producing ultra-long submarine cables, and equipped with a huge drying vessel (the largest in the world) for drying and oil-immersing and extra-large turn-table for shipping cables. The company's expertise in extra-long-term operation of facilities such as the lead extruder, which is required for the production of ultra-long submarine cables, results in highly reliable cables.

Newest technology for producing DC submarine cable

Fujikura has designed, produced supplied, and laid 3000 mm2 oil-filled cables for DC 500 kV, which is the highest voltage DC cables in the world. These cables have a length of 50 km without any joints, demonstrating Fujikura's technical expertise in producing ultra-long submarine cables and DC cables. Having developed new materials for extruded insulation DC cables, Fujikura is a leader in DC submarine cable technology for the next generation. Owing to Fujikura's advanced technology and huge drying vessel, mass impregnated non-drained cable, which is commonly used as long-distance submarine cable, is also available in lengths of several hundreds km.

Technology that provides cost-effective, easy-to-fabricate accessories

In addition to cables, Fujikura supplies accessories for cross-linked polyethylene cables an oil-filled cables.
Making the most of the oil-free nature of the cross-linked polyethylene cable, cost-effective, easy-to-fabricate accessories for cross-linked polyethylene cables are produced. High-performance accessories such as Y-type joints, as well as terminal ends that can be connected to every type of equipment, like GIS, transformer and outdoor switchgear, are also available.
As for oil-filled cable all types of joints, terminal ends and special joints, such as a transition joint that connects oil-filled cable and cross-linked polyethylene cable, and a stop joint for oil-filled cable, are also produced. Various types of oil-feeding equipment, including pumping apparatus for high-pressured oil-filled cable or submarine cable are available.

Quality management and environmental systems that conform to international standards

Fujikura's quality management system is based on international standards, and meets the ISO 9000 standard. Based on many years' experience in supplying power cables throughout the world, the company's quality management system is ow able to meet all international standards, and has won a high reputation among customers, all over the world.
Fujikura recognized the importance of global environment protection in the 1980's, and established international regulations for global environment protection in 1992; and the environmental management system of Tokyo Bay Plant where power cables are produced, conforms to ISO 14000.

High-level technology for full-turn-key construction

Fujikura's technical expertise extends not only to underground power transmission cables but also to submarine cables that require the most advanced technologies. Making full use of such expertise, Fujikura has laid a lot of submarine cables throughout the world.
In the field of underground power cable laying, the company's own civil engineering division undertakes not only cable laying work but also related civil engineering works that require an extensive specialist know-how.
With all these resources, Fujikura is able to provide full-turn-key works including design, production, laying, testing, and maintenance of power cables.

Maintenance and monitoring technology that ensures highly reliable power transmission

Fujikura supplies various types of maintenance and monitoring systems that monitor the operating conditions of power cables, and quickly inform users of abnormal conditions.
Fujikura's maintenance and monitoring systems utilize various types of sensors and computers, and these systems enhance the reliability of power cables by detecting abnormal conditions before they grow major problems.

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