The first major components, including the melt trap, have arrived onsite at the Akkuyu nuclear power station under construction in Turkey, Russia’s state nuclear corporation Rosatom said.The 150-tonne melt trap, also known as a core catcher, is a key feature of the passive safety system for the Russia-supplied VVER-1200 reactor. It is provided to catch the molten core material – corium – of a reactor in the unlikely event of a meltdown, preventing it from escaping the containment building.