The NUCLEAR racks are a special solution for the installation of batteries in nuclear power plants. The design was developed in 2004 and tested live for SL2 in a test lab in Sweden. Exactly 10 years later the rack was tested again, but due to Fukushima with SL3 = 3.4 g ! The basic material is steel which is plastic coated with a high quality PE using the whirl sintering process in RAL 7021 black gray.