Distribution Boxes: Types and Functions
Learn what an electrical distribution box (DB/distribution board) is, its main components (MCB/RCCB/RCBO, SPD, busbar) and common types.
Read MoreClassification of Primary Distribution Boxes at Construction Sites
Home / Classification of Primary Distribution Boxes at Construction Sites
Distribution boxes can be broadly categorized by their voltage level, application environment, and primary function. Differences Between Primary, Secondary, and Tertiary Distribution Boxes Designed for construction or large-scale projects as a main distribution point. Difference between level I, level II and level III of distribution box Primary distribution box: three-phase power supply, ground wire and zero wire are introduced from the transformer. Power supply on construction sites is crucial to run all the equipment and tools needed to complete a project. Intelligently designed plastic housing with cross-divided inlet and outlet openings integrated within its bottom and cover facilitate in combination with the folding strain relief clamps effortless, time-saving connection of the distributors. Let's make a hypothesis: a newly built residential area introduces a 10kV incoming line and builds a distribution room.