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Latest ITER Newsline

  • Cryostat | As clean as a freshly minted coin

    Before it is encased in its protective cocoon and moved to temporary storage, the cryostat upper cylinder must be cleaned. The operation is both low-tech and es [...]

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  • Science | New steady state analysis

    Recent research shows it should be possible to reach steady-state fusion production in ITER with the baseline mix of heating and current drive systems, in parti [...]

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  • Image of the week | Like dancers in a vertical ballet

    Of all the movements of workers and equipment in the Assembly Hall, these are the most gracious... Like ballet dancers on a vertical stage, two workers are b [...]

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  • Cryostat base | Grand opening soon

    Picture a giant soup plate, 30 metres in diameter, slowing descending into a deep concrete cylinder. Track the near imperceptible movement of the double overhea [...]

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Of Interest

See archived entries

Ballet in the sky (Part II)

Since ''acrobats'' began bolting together the pre-assembled arms of the pylons, work on the 400kV power line has provided some spectacular sights. © CEA/Corinne Guis (Click to view larger version...)
Since ''acrobats'' began bolting together the pre-assembled arms of the pylons, work on the 400kV power line has provided some spectacular sights. © CEA/Corinne Guis
Installing a 400kV power line requires, in the following order: a crane, a team of acrobats, a truck-mounted winch and, finally, a helicopter.

In difficult areas—such as the ridge that separates the ITER site from CEA-Cadarache to the east of the present Headquarters Building—helicopters are used to position temporary "pulling cables" that will later be attached to the actual power cables and pulled by a ground-based winch.

''Pulling cables'', positioned by the helicopter hovering above the ridge were safely attached to the temporary pulleys. © Agence ITER France (Click to view larger version...)
''Pulling cables'', positioned by the helicopter hovering above the ridge were safely attached to the temporary pulleys. © Agence ITER France
Such an operation was organized last Wednesday 1 February after the sky had cleared following the previous day's heavy snowfall. "Pulling cables" were installed between pylon 18, located at CEA-Cadarache's highest point, and pylon 15, located close to canteen n°2.

The same operation, this time between pylons 15 and 10, is scheduled for 28 February.

Work on the 400keV power line, which began in September, continues to provide spectacular entertainment.


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