European style cable distribution box is a cable engineering equipment widely used in power distribution network systems in recent years. Its main features are bidirectional opening of doors, use of through wall sleeves as connecting busbars, and significant advantages such as small length, clear cable arrangement, and no need for large-span crossing of three core cables. The cable connectors used comply with DIN47636 standard. Generally, bolt fixed cable joints with a rated current of 630A are used.