What safety measures should be taken when the electrical equipment is on fire?
Power supply before fire fighting. When an electric fire occurs, the power shall be cut off as soon as possible, and then put into action to prevent the person from getting an electric shock. Cut off the power supply, should pay attention to the following points:1) when the power failure, should operate according to the procedure stipulated by the regulations, strictly guard against the load broach gate. The switch and knife switch in the fire can be reduced or destroyed due to smoke and fire. Therefore, insulation gloves should be worn, insulated boots should be worn and insulated tools at the corresponding voltage level shall be used.2) when cutting the live wire, the cut-off point shall be near the support of the power supply to prevent the conductor from falling behind and touching the human body or causing a short circuit. When cutting the low-voltage stranded strand, it should be cut in phase and the electric pliers with insulated handle should be used.3) when cutting off the power supply, the fire line and ground wire should be cut at different parts to prevent short circuit.4) if there is a load on the line, the load should be removed first and the power supply will be cut off.5) in case of electrical fire at night and cut off the power supply, temporary lighting should be taken into consideration to facilitate fire fighting.6) when the power department is required to cut off the power supply, telephone contact should be carried out quickly and the situation will be clear to the electric power department. The electric fire after cutting off the power supply, in most cases, can be put out according to the general fire.
Remember: first cut off the power supplyThen use dry powder extinguisher (CO2) to extinguish the naked flame,Then: check the wiring to see if there are any hidden dangers. BurntReplace the electrical wiring (must find the electrician), find the sale of electrical appliancesThe repairman at the rear door repaired the appliance!
Safety measures for extinguishing fire without cutting off power supply. Electrical fire, if the situation is critical, in order to seize the opportunity to fire, or because other reasons are not allowed and can not promptly cut off the power supply, it is necessary to live fire. In order to prevent personal electric shock, we should pay attention to the following points:1) the fire fighting personnel and the conductive fire fighting equipment and the live parts should keep a safe distance.2) when the HV electrical equipment or the line is earthed, the indoor fire fighting personnel shall not enter the range within 4M of the fault point; and the outdoor fire fighting personnel shall not be within the range of 8m of the fault point. If it is necessary to enter the above range, the fire fighting personnel must wear insulating boots, and wear insulating gloves when touching the outer shell and frame of the equipment.3) when fighting an overhead line fire, the elevation between the human body and the electric wire should not be greater than 45 degrees, and should stand on the outside of the line to prevent the conductor from falling behind and touching the human body.4) use non conducting fire extinguishing agents, such as carbon dioxide, carbon tetrachloride, and chemical dry powder. Because foam fire extinguisher is conductive, it is forbidden to use in the case of live fire extinguishing.5), using water cannons charged fire, firefighters should wear insulated shoes, wear insulated gloves and gun metal nozzle grounding. The grounding wire can be used for soft wire weaving section 2.5 to 6mm2, 20 to 30m, the temporary grounding into underground length is about 1m iron, steel or iron. The earthing wire and the earthing body should be connected reliably. When conditions are over charged fire wear.6) the fire fighting personnel who have not worn insulated shoes shall be prevented from being electrocuted by water on the ground.
