Power cable is one of the basic materials for transmitting electrical energy.
It is widely used in economic production. In modern buildings, all kinds of wires and cables are becoming more and more complex, and the lines are longitudinally and densely packed, which brings great convenience to people.
At the same time, cable fire accidents increase year by year, adding a lot of trouble to everyone. If the cable is on fire, what should we do? Next, Pearl ZMS Cable will introduce six fire extinguishing methods.
01
Cut off the power of the fire cable. If the cable is on fire and burning, the power supply should be cut off immediately for any reason.
Then, according to the path and characteristics of the cable, check carefully to find out the fault point of the cable and organize personnel to extinguish the fire quickly.
02
Cutting off power to non-faulty cables in case of a fire in a cable trench. When the cable in the cable trench catches fire, if the cables laid side by side with the cable trench have an obvious possibility of catching fire, the power supply of these cables should be cut off.
If the cables are arranged in layers, first cut off the power supply to the heating cables above the fire cables, then cut off the power supply to the cables side by side with the burnt cables, and finally cut off the power supply to the cables below the fire cables.
03
Close the fire door of the cable trench or block both ends of the cable trench.
When the cable in the cable trench is on fire, to avoid air circulation, close the fire isolation door of the cable trench block both ends of the cable trench, and use the asphyxiation method to extinguish the fire.
04
Do a good job of personal protection when extinguishing the fire. Cable fires will produce a lot of smoke and toxic gases, firefighters should wear gas masks when fighting cable fires.
To prevent personal electric shock in the rescue process, rescue personnel should also wear rubber gloves and insulated boots.
If a phase of the high-voltage cable is found to be grounded, rescuers should pay attention to indoor distance from the fault point 4m range shall not enter, outdoor distance from the fault point 8m range shall not enter, to avoid the step voltage and contact voltage caused by personal injury.
Rescue of the injured is not limited to this restriction, but protective measures should be taken.
05
Fire extinguishing equipment for extinguishing cable fires.
To extinguish cable fire should use fire extinguishers, such as dry powder fire extinguishers, "1211" fire extinguishers, carbon dioxide fire extinguishers, etc.; dry sand or loess can also be used to cover; if the water to extinguish the fire, is best to use the water spray gun; if the fire is fierce, and can not be extinguished in other ways, after cutting off the power supply, can be injected into the cable trench water, water to seal the fault.
06
When fighting cable fire, it is strictly prohibited to directly contact the cable steel armor and move the cable by hand.
To prevent the risk of cable fire, we must often carry out regular line safety checks. On the wire, electrical equipment, etc., at least once a year ask the professionals for a comprehensive inspection, especially the joints part of that have used the line for a long time, found that the wire is aging, broken, has poor insulation and other insecurity, to repair and replace promptly, to ensure the safety of electricity.
Finally, to remind you, when buying wire and cable must recognize formal manufacturers, check the quality, and do not because of the cheap price to buy non-qualified wire.