Min's Cable will introduce to you, how to effectively prevent the extension of cable fire

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How to effectively prevent the extension of the fire, today we Min's Cable will analyze for you, what are the common measures.

1. The measures to prevent the fire from spreading are: sealing, blocking, coating, separating, wrapping, spraying water, etc.

2. Coatings and blocking materials need to pass the national technical appraisal and be issued a production license by the public security department. During production, the products should be non-combustible or non-combustible materials, and meet the fire resistance time specified in the specification. Pay attention to the dilution of the diluent when painting. Fireproof.

3. Access to the control room, cable interlayer, control cabinets, instruments, control cabinets and instrument panels, cable holes, holes, shafts and cable entrances into the oil area need to be sealed with fire blocking materials. A certain length of the power plant can be coated with Fire-resistant paint or other flame-retardant materials. The cable trenches near the oil-filled equipment should be equipped with fire-proof and flame-retardant measures, and the cover should be sealed.

4. If it is necessary to lay new cables on the cable layer that has completed fire protection measures, it is necessary to supplement the corresponding fire protection measures in time.

5. Corridors should be divided into fire partitions every 60m.

6. It is strictly forbidden to place the cable directly on the steam pipe. When laying the cable overhead, the clear distance between the cable and the steam pipe should not be less than 1m (power cable) and 0.5m (control cable), and the clear distance from the oil pipe should be increased as much as possible.

7. Cable interlayers, tunnels (corridors), shafts and cable trenches should be kept clean, and debris and cable trenches should not be stacked.

8. Near the machine head, the boiler slag hole, the pressure relief nozzle of the explosion-proof door and the cold air door of the coal mill must not face the cable, otherwise fire protection measures (such as cover, closed tank box) should be taken.

9. When the insulating agent of the cable box is injected into the cable interlayer, tunnel (corridor) and trench, the melting insulating agent should work.

10. When multiple cable heads are installed side by side, spacers should be added or filled with flame retardant materials between the cable heads.

11. When putting out a fire in a tunnel (corridor) or a cable head in a poorly ventilated place, you should wear oxygen breathing protector and insulating gloves, and wear insulating shoes.

12. Fire-retardant measures such as fire-resistant tapes should be added to the 2 side of the intermediate joint box and its adjacent areas.

13. To prevent the power cables and control cables from being mixed, unevenly distributed, or even stacked indiscriminately during the construction process, interlayer fire-resistant partitions should be set between them.

14. The steam turbine, boiler room and coal conveying system of thermal power plants should use armored cables or flame retardant cables, not suitable for ordinary plastic cables.