The Power Distribution Cabinet Constructs A Three-level Power Distribution Protection System For Construction Power Supply.

The temporary power supply environment at construction sites is complex, and a robust three-tiered power distribution protection system can be constructed using the Powbinet system. As the primary power distribution unit, the distribution cabinet receives three-phase power, neutral wire, and grounding wire from the transformer or main power supply, acting as a hub for power aggregation and distribution. This cabinet uses bottom-in/bottom-out wiring and copper busbar connections, and includes internal metering and protection components, making it suitable for outdoor or field construction environments.

When distributing power to various construction areas, secondary distribution boxes further branch the power supply. Secondary boxes often feature a double-door design, powder-coated casing, and a rainproof top for convenient outdoor use. Secondary power is output from the primary cabinet, led out via branch switches, and supplies power to various power equipment or branch lines.

Finally, the power reaches the end user in the tertiary distribution system—the switch box or the device's own control cabinet. Each branch line is centrally managed by the tertiary box, through which the power supply equipment connects to the power grid. The tertiary box typically contains circuit breakers and residual current devices, responsible for the independent control and protection of the final power-consuming equipment.