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Date：06-10-2023
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The cable tapping box is divided into two categories according to the electrical composition: one is the non-switch box, only the accessories connected to the end of the cable are processed on the box, the structure is simple, the volume is small, the function is simple, can be called the ordinary tapping box;
In addition, it is not only an accessory of the ordinary tap box, but also includes one or several electrical switches in the tap box. The structure of the chassis is complicated, the volume is large, the joints are many, the manufacturing process is difficult and the cost is high.
1. Main junction box.
The electrical terminal box generally has no electrical switchgear, the incoming line and the outgoing line are electrically connected together, the potential is the same, and it is suitable for tapping or branching. In general, we add the number of incoming loops to the number of output loops called the number of branches. For example, a three-branch cable tapping box has three equal potential points in each phase and can be used as one in, two in and one out. The cable tapping box contains U,V, and W three-phase circuits with the same structure and arranged in sequence.
2. Advanced dispensers.
A switch cabinet is arranged in the upper distribution box. The switch can be used as both the tap and branch function of the general distribution box and the control function. Transform and change the operation mode of the power supply circuit. The switchgear roughly divides the cable loop into the input side and the output side, and the potential on both sides can be different. The volume of the switchgear itself is relatively large, so the advanced junction box outline size is relatively large, the height is generally 1.4-1.8 meters, the depth is about 0.9-1.0 meters, the length depends on the number of the switchgear included, in most cases is 1.0-2.4 meters, the shape of the box is similar to the outdoor box-type transformer. There are some moving doors on the box. Switch cabinet operation door, cable connection equipment installation. Construction. Maintenance. Maintenance door.
