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Europe signs contract for 62 tons of copper strands

-Aris Apollonatos, F4E

Didier Gambier, Director of the European Domestic Agency (4th from left), and his team from "Fusion for Energy" after signing the contract for 62 tons of copper strand with the Finnish company Luvata. Photo courtesy of F4E. (Click to view larger version...)
Didier Gambier, Director of the European Domestic Agency (4th from left), and his team from "Fusion for Energy" after signing the contract for 62 tons of copper strand with the Finnish company Luvata. Photo courtesy of F4E.
Cross section of ITER TF conductor. Photo courtesy of ENEA. (Click to view larger version...)
Cross section of ITER TF conductor. Photo courtesy of ENEA.
Fusion for Energy (F4E), the European Domestic Agency to ITER, has signed a contract for manufacture of 62 tons of chromium-plated copper strand, which will form part of ITER's superconducting magnet system. This contract marks Europe's first in-kind hardware technological contribution to the ITER project.

ITER will operate with a special type of high purity chromium-plated copper strand. It has high conductivity at extremely low temperatures, and limits the temperature inside the cable in case of superconductivity loss. Strands of such kind are mostly used in superconductors and cryogenic applications.

Superconducting and copper strands are twisted together to build high-amperage cables made of more than 1,000 individual strands. The cables are inserted into a stainless steel jacket and compacted to their final diametre in order to be used in the Toroidal Field coils of ITER. It is estimated that about 180 tons of pure copper strands will be needed for these coils.

The contract for the production of the chromium-plated copper strand was awarded to Luvata, an international metals, manufacturing and technology supplier based in Finland with a workforce of over 8 000 people in 18 countries.


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