The European-style cable branch box is a device widely used in cable-based projects within power distribution systems in recent years. Its main features include bi-directional opening doors and the use of connecting bushings as busbar connectors. It offers notable advantages such as compact size, clear cable arrangement, and the elimination of large-span crossovers for three-core cables. The cable joints used conform to the DIN47636 standard, typically employing 630A bolt-fixed connection type cable joints.