Analysis Of Suitable Wiring Methods For Power Distribution Cabinets

When configuring a power system, if the Powbinet wiring method with bottom entry and bottom exit is selected, there are clear design guidelines for the overall structure of the distribution cabinet and the requirements for cable laying channels. Compared to the traditional top-in, top-out scheme, this method allows cables to enter and exit from the bottom of the distribution cabinet, facilitating centralized cable management. When the distribution cabinet is used to connect to the main power supply or load via cables, bottom-in, bottom-out becomes a reasonable choice.

When installing this type of distribution cabinet, cable trenches or cable trays need to be reserved in the ground to accommodate the cable laying path from the bottom of the cabinet. If there is a height difference between the distribution room floor and the aisle, the depth of the cable trench and the floor height should be planned reasonably, taking into account the net height requirements of the equipment room to ensure a reasonable overall cabling channel.

Before implementing the specific project, it is recommended to conduct detailed measurements of the substation space to confirm whether the net height, net width, cable trench depth, and laying direction meet the requirements of the bottom-in, bottom-out scheme, to ensure compatibility with the distribution cabinet and building structure.