This standard covers the oil-immersed single-phase connection assemblies of cables for transformers and reactors designed in accordance with EN 60076 series. NOTE The term "transformer" is used as common definition for transformer and reactor. The purpose of EN 50299-2 is to establish for the cable connection assemblies: electrical and mechanical requirements including interchangeability; limits of supply; tests to be carried out. It complements and amends, if necessary, the relevant IEC standards and applies to dry-type cable terminations for power cables with extruded insulation. This standard applies to oil-filled cable connection boxes of transformers with highest voltage for equipment from Um = 72,5 kV to Um = 550 kV, including the conductor current terminal with removable link between the transformer and the dry-type cable termination.