How to Correctly Select Cable Branch Boxes from Dary Electric Company
The precautions for selecting cable branch boxes are as follows:
Nowadays, the demand for cable branch boxes is increasing, and some places have special requirements for cable branch boxes. To meet customers' specific needs, cable branch boxes need to be customized. So, when customizing cable branch boxes to meet practical needs, there are several aspects to pay attention to, which are also the prerequisites for ensuring quality. Only with guaranteed quality will customers purchase and feel assured. For example:
1. The grounding circuit of the cable branch box should be able to withstand a maximum short-time withstand current of about 87% of the rated short-time withstand current of the main circuit, to ensure the safe use of the cable branch box.
2. We should have a clear and obvious main wiring diagram marked on the outside of the operation room door of the cable branch box, for warning and use.
3. Generally, cable branch boxes should be equipped with a bottom plate and fire-resistant sealing material. After cable installation, the bottom plate gaps should be sealed with fire-resistant sealing material to prevent moisture from the cable trench from rising into the cable branch box.
