Once the power cable is on fire, it should be extinguished by the following methods:
(1) Cut off the power supply of the fire cable. If the cable is on fire, the power should be cut off immediately, and then, according to the path and characteristics of the cable, carefully check the fault point of the cable, and promptly organize personnel to save.
(2) The power supply of the non-faulty cable in the cable trench is cut off. When the cable in the cable trench is ignited, if the cables laid alongside the same trench have obvious ignition potential, the power of these cables should be cut off. If the cables are arranged in layers, first cut off the power cable on the fire cable, then cut off the cable power supply along with the fire cable, and finally cut off the power cable under the fire cable.
(3) Close the cable trench and block the two 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 door of the cable trench should be closed or blocked at both ends, and the fire should be extinguished by suffocation.
(4) Do a good job of personal protection against a cable fire. Because the cable burns and burns, it will generate a lot of smoke and poisonous gas. When extinguishing the cable fire, the rescue personnel should wear a gas mask. In order to prevent personal electric shock during the rescue process, the rescue personnel should also wear rubber gloves and put on insulated boots. If the high-voltage cable is found to be grounded, the rescue personnel should observe: indoors must not enter within 4m from the fault point, outdoor can not enter the distance fault Within 8m, so as not to hurt the stride voltage and contact voltage. This is not the case for ambulance injured persons, but protective measures should be taken.
(5) Extinguish the fire extinguishing equipment used in cable fires. Fire extinguishers should be extinguished by fire extinguishers, such as dry powder fire extinguishers, "1211" fire extinguishers, carbon dioxide fire extinguishers, etc.; they can also be covered with dry sand or loess; if water is used for fire fighting, it is best to use spray water guns; if the fire is fierce, It may be saved in other ways. After the power is cut off, water can be filled into the cable trench, and the fault can be sealed with water to extinguish the fire.
(6) When fighting a cable fire, it is forbidden to directly touch the cable shovel and the moving cable by hand.
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