Secondary Distribution Box: Serves each floor or building as needed. Residual current devices must be the final protective device, with each appliance. Yet the distribution box is a highly complex component that not only ensures safe power distribution, but is also responsible for protection in an emergency. In this article, you will learn everything you need to know about installing, expanding or replacing a distribution box - from the legal. Choose the right box based on environment (indoor/outdoor), load capacity, and durability. Ensure safe placement: install in dry, accessible areas with good ventilation and at appropriate height (typically ~1. Wire. The outgoing line from the low-voltage end of the transformer is 0. 4kV to the distribution cabinet (primary distribution cabinet), then the outgoing line is led to the distribution box (secondary distribution box) in each building, and finally the outgoing line is led to the distribution cabinet. The distribution box should be installed in an area close to the power supply to reduce power loss and ensure safety.
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