Belgian power network operator ELIA handles high-voltage electricity transport through over 8,600 km of underground lines and cables and is in charge of ensuring the smooth running of the many cross-border interconnections. As part of the BRABO II project to reinforce the high-voltage network and power supply security in the port of Antwerp, this major European player in the sector has entrusted our specialists with building a 380,000-volt overhead power line in the Antwerp district of Berendrecht-Zandvliet-Lillo, Flanders.
Our Eiffage Énergie Systèmes Transport & Distribution teams joined up with local partner Herbosch-Kiere to install this link across the Escaut river in the port of Antwerp. With true Group synergy, Herbosch-Kiere took charge of foundations for two pylons on the banks of the Escaut, together with work on the surroundings and access, while our staff are to assemble and raise these 192-metre-high pylons and roll out the conductor cables and ground wires.
Our teams began by assembling the pylon sections, occupying as little ground space as possible. Their aim was to limit the impact of the worksite on the banks of the Escaut while adjusting to other environmental restrictions (river in close proximity, roads, existing high-voltage power line and buried networks). Their next job is to raise these sections and assemble each pylon with the help of a 1,250-tonne crane equipped with a 200-metre boom. They will then roll out the conductor cables and ground wires overhanging the Escaut, over a 900 metre range with a 73% max. slope.
Our specialists will finally install beacons on the cables at a variable height of 110 to 200 metres above the Escaut, enabling the Port of Antwerp’s large container ships to navigate. On completion, these high-voltage overhead power line pylons will be among the tallest in Europe.
Work began in March 2018 and is scheduled until October 2019. The power line will be inaugurated in the autumn.
Photo credits : © Eiffage Énergie Systèmes