The injured employees were trying to reinstate the power supply to one of the furnaces at BAS Castings’ foundry on the Wharf Road Industrial Estate in Pinxton, near Mansfield, on 2 September 2016 when the incident happened.
After contractors had completed furnace repairs, the two employees replaced the fuses. They then shut the door to the fuse panel, which engaged the interlock, a system that monitors the position of the guard or gate to shut off power or access.