1) Cut off the fired cable power supply. When a cable catches fire, it should be cut off immediately regardless of the cause. Then, according to the path and characteristics of the cable, it is carefully checked to find out the point of failure of the cable. At the same time, personnel should be quickly organized to save.
(2) Cut off the non-faulty cable power in the cable trench. When the cables in the cable trenches start to burn, if the cables laid side by side with the same trench have obvious fire potential, the power of these cables should be cut off. If the cable is arranged in layers, first cut off the heat-receiving cable power above the fire-retardant cable, and then cut off the cable power supply that is in parallel with the fire-cable cable, and finally cut off the cable power supply under the fire-breathing cable.
(3) Close the cable trench fire door or block both ends of the cable trench. When the cable in the cable trench catches fire, in order to avoid air circulation and facilitate rapid fire extinguishing, the fire exit door of the cable trench should be closed or blocked at both ends and extinguished by means of suffocation.
(4) Good personal protection when fighting a cable fire. Because the fire of the cable will generate a lot of smoke and gas, fire fighting personnel should wear a gas mask when fighting a cable fire. In order to prevent people from getting an electric shock during the rescue process, the rescue personnel should also wear rubber gloves and put on insulating boots. If high-voltage cables are found to be grounded in one phase, the fire-fighting personnel shall comply with the following rules: Indoors shall not enter within 4m from the point of failure, and outdoor access shall not be allowed. Point within 8m so as not to hurt people by step voltage and contact voltage. The ambulance personnel are not limited to this, but protective measures should be taken.
(5) Fight fire extinguishing equipment used in cable fires. Fire extinguishers should be used to extinguish cable fires, such as dry powder fire extinguishers, “1211†fire extinguishers, and CO2 fire extinguishers; dry sand or loess can also be used; if water is used for extinguishing fires, spray guns should be used; if the fire is violent, it is not Other methods may be used to save the fire. After the power is cut off, water can be poured into the cable trench to seal the fault with water and extinguish the fire.
(6) When fighting a cable fire, do not touch the cable reel or move the cable by hand.
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