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Date：10-20-2021
The cable branch box is only used as a cable branch. The main function of the cable branch box is to branch or transfer cables, which is mainly used for cable branching and cable switching.
With the development of the distribution network cable formation process, when small-capacity independent load distribution is concentrated, the cable branch box can be used for the multi-branch connection of the cable, because the branch box cannot directly run each channel.
1. Cable tapping function. In long-distance lines, there are many small-area cables, which often leads to wasted cables. Therefore, when outputting to the electrical load, the trunk cable is often used, and then when the load is turned off, the cable trunk box is used. The cable is divided into several small-area cables, which are connected to the load through the small-area cables. This wiring method is widely used for street lamp power supply in urban power grids and power supply for small users.
2) Cable transfer function. On a relatively long line, the length of the cable cannot meet the requirements of the line, then a cable connector or a cable adapter box must be used. Usually the cable intermediate connector is used for short distances, but when the line is relatively long, it is more than 1000m according to experience If there are multiple intermediate connectors in the middle of the cable, in order to ensure safety, the cable branch box will be considered for transfer.
Cable branch boxes are widely used outdoors. With the advancement of technology, cable branch boxes with switches are now increasing. Urban cables often use double-loop power supply, so some people directly call branch boxes with switches as outdoor ring nets. However, most of the current ring network cabinets are unable to achieve distribution automation. However, manufacturers have introduced outdoor ring network cabinets that can automatically distribute the network. This also makes the boundary between the cable branch box and the ring network cabinet blurred.
