How to prevent wire and cable from catching fire? Wires and cables refer to materials used for power, electrical and related transmission purposes. There is no strict boundary between "wire" and "cable". Generally, products with a small number of cores, small product diameters, and simple structures are called wires, those without insulation are called bare wires, and the others are called cables. So, in this way, wires and cables are very prone to heat and overload. So how to prevent wires and cables from catching fire due to overload? Listen to what Shanghai Qianshi said!

 

　　 1. Ensure the construction quality, especially the production quality of the cable head must strictly comply with the specified requirements.

 

　　 2. Perform cable tests regularly, and deal with it immediately if any problems are found.

 

　　 3. Install a fire alarm device to detect the fire immediately to prevent the cable from catching fire.

 

　　 4. The cable trench should be kept dry to prevent the cable from being damp, causing the insulation to drop and cause a short circuit.

 

　　 5. Enhance cable operation monitoring to avoid cable overload operation.

 

　　6. ​​Clean the dust accumulated on the cable accidentally to prevent spontaneous combustion of the accumulated dust and cause the cable to catch fire.

 

　　7. Enhance the regular verification and maintenance of the cable loop switch and protection to ensure its reliable action.

 

　　 8. When laying the cable, keep a sufficient distance from the heat pipe. The control cable is ≥0.5m; the power cable is ≥1m.

 

　　 The control cables and power cables should be slotted, layered and arranged separately. It is impossible to overlap between layers.

 

　　 For the parts that do not meet the delimitation, the cable shall be flame-retardant and heat-insulated.

 

　　 9. Equipped with necessary fire-fighting equipment and facilities. Common fire extinguishing equipment can be used to extinguish the fire of overhead cables, but automatic or remote control fire extinguishing devices, such as 1301 fire extinguishing devices, water spray fire extinguishing devices, etc., should be installed in cable interlayers, shafts, trenches and tunnels.

 

　　 10. Take fire and flame retardant measures.

 

　　The fire-retardant measures for cables include:

 

　　 (1) Apply fire-resistant paint on the surface of the cable.

 

　　 (2) Wrap the parts of the cable that need to be flameproof with fireproof tape.

 

　　(3) The holes where the cables pass through the walls, bottoms, and shafts are tightly sealed with refractory materials to prevent the spread and spread of high-temperature smoke when the cables are on fire, which will cause the fire to expand.

 

　　 (4) Install heat-resistant fire-proof panels between the cable layers, and segment partition walls and fire doors to prevent the cable layers from flaring and expand the fire.

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