Baltic Offshore protects cables with concrete mattresses and 7,000 rockbags.
Baltic Offshore was commissioned by Ellevio to install 420 kV (kilovolt) HVAC (High Voltage AC) cable in Lake Mälaren between Sätravik and Ängbybadet. Since Lake Mälaren is a drinking water supply, the materials that can be used are strictly regulated. Sea dredging also requires the protection of turbidity from spreading outside the work area.
Tecomatic has delivered two different categories of products
Tecomatic has collaborated with Baltic Offshore in several different projects. In a project outside Kårehamn, Baltic Offshore was commissioned to construct a wind farm and, together with Tecomatic, developed a specially adapted concrete mattress to be installed on the cable at several positions. We developed a concrete mattress that was pre-filled with concrete and then burned/set well in place. The same special solution was applied in another project where filled concrete mattresses were combined with rockbags to form a so-called coring solution to protect both cable and gas pipeline where the two crossed.
Read more about Baltic Offshore and the project on Baltic Offshore’s website balticoffshore.se.
Product Specialist Concrete Mattresses, Environmental Curtains & Rockbags
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