Causes of fire at the end of the heating cable
The end of the heating belt needs to be sealed with a special terminal junction box or a heat shrinkable sleeve. Due to the structural problem of the heating belt, the two parallel busbars have already formed an internal loop, so the two wires at the first end are directly connected to the power zero line during installation A complete circuit, the cause of the fire at the end of the heating cable will mainly have the following points:
1. The tail end is a sealed section. It is necessary to install the terminal junction box for sealing during the installation process. It is strictly forbidden to leak the tail of the heating belt without installing the junction box. After the tail end is damp, it is easy to cause a short circuit and fire.
2. When installing the terminal junction box, the outer sheath should be stripped off and the shielding layer should be stripped. It is strictly forbidden to connect the shield of the heating belt to the terminal junction box. If the shielding net is connected to the terminal box, it will cause the circuit to be grounded. In a state of poor contact, it is easy to produce electric sparks and cause fires.
3. The insulation layer at the end expands and contracts, exposing the conductive parts. In rainy and humid weather, it will cause leakage and fire.
4. The use of water-absorbent insulating tape causes the tail end to become wet, causing leakage and fire.
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