Medium power transformers 50 Hz, with highest voltage for equipment not exceeding 36 kV. Transformers with cable boxes on the high-voltage and/or low-voltage side. Cable boxes type 2 for use on transformers meeting the requirements of EN 50588-2|Distribution boxes, Power transformers, Three-phase transformers, Design, Electrically-insulated bushings, Boxes (electric), Rated voltage, Transformers, High-voltage equipment, Oil-immersed transformers, Testing conditions, Distribution transformers, Rated frequencies, Junction boxes, Low-voltage equipment, Electrical connections, Cable junctions