Cable boxes described in this European Standard correspond to cable boxes Type 2 in EN 50464-2-1 and are suitable for assembly on the cover of oil-immersed distribution transformers meeting the requirements of EN 50464-2-1. Cable boxes are air-filled, metal- or non-metal enclosed, for high- and/or low-voltage connections in the following variations: 1.1High-voltage side a)Connection directly to bushings; b)Connection via busbar system. 1.2Low-voltage side a)Connection directly to bushings (maximum of four connectors per bushing); b)Connection via busbar system.