
Line 2 x 400 kV CHAFFARD - GRANDE ILE
The construction site between pylons 210 and 228 required 20 months' work and at least 70 000 hours with two main phases:
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- dismantling of 15 pylons over 8.5 km of line - 1 circuit 400 kV.
One of the unusual features was the need to cross the A43 near Chimillin for which a special procedure was developed which has been widely used on RTE construction sites.
(Report drafted on 4 April 2008 at the time of the inauguration of the line)
ANDRA
Roll out of a BT cable (3 x 240 mm2 + 95) over a distance of 800 m of which 500 m were vertical and encased (PA and PX) and in parallel an HTA cable, 20 kV (3 x 35 mm2 Cu) for ANDRA .
(Report drafted by the THEPAULT RESEAUX° network teams)
Deep borehole
Placement of 300mm diameter steel tubes for the new gas artery for the urban district of Nancy - to cross under the 'place de Padoue' at a depth of 7 metres in the Blandan quarter of Nancy using auger boring technology.
(Tablettes Lorraines n° 1100-1101 - July 2008)