source:Industry News Popular:adapter release time:2021-06-22 15:34:15 Article author:sznbone
Ten tricks for cable fire and explosion
1. Ensure the construction quality, especially the production quality of the cable head must strictly comply with the specified requirements.
2. Carry out the cable test regularly, and deal with it immediately if any problem is 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. Occasionally clean the dust accumulated on the cable 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 pipeline, the control cable is ≥0.5m; the power cable is ≥1m; the control cable and the power cable should be slotted, layered and arranged separately, and it is impossible to overlap between layers; right? The cable should be flame-retardant and heat-insulated for the parts that meet the delimitation.
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 device, water spray fire extinguishing device, etc., should be installed in the cable interlayer, shaft, channel and tunnel.
10. Take fire and flame retardant measures.
Fire-retardant measures for cables include:
(a) Apply fire-resistant paint on the surface of the cable.
(b) Wrap the parts of the cable that need to be flameproof with fireproof tape.
(c) The holes where the cable passes through the wall, the bottom of the plate, and the shaft are tightly sealed with refractory materials to avoid the spread and spread of high-temperature smoke when the cable is on fire, which will cause the fire area to expand.
(d) Set up heat-resistant and fire-proof panels between the cable layers, segmented partition walls and fire doors to prevent the cable layers from combusting and expand the fire.
(e) Wrap the cable with a heat-insulating and flame-resistant material. When the cable is on fire, the wrapped cable is isolated from the fire by the heat-insulating and flame-resistant material to avoid burning. If the cable itself catches fire, the lack of oxygen in the bandage can cause the fire to extinguish itself, preventing the fire from spreading to the outside of the bandage.
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