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一、试验任务及目的近年来水喷雾灭火机理的研究表明:由于水喷雾对燃烧物具有冷却、窒息、乳化和稀释作用,故其灭火效率比一般柱状水流高。并且,实验证明,水喷雾的电气绝缘强度很高,喷雾水抢在水压5.5公斤/厘米~2情况下,与220千伏的带电体距离为5米时,泄漏电流仅为0.1毫安,可确保人身的安全(手持喷头进行灭火时)。所以水喷雾灭火尤其适用于扑灭电气设备及绝缘油火灾。
First, the test mission and purpose Water spray fire extinguishing mechanism in recent years, studies have shown that: As the water spray on the combustion with cooling, suffocation, emulsification and dilution, so the fire extinguishing efficiency than the general columnar flow high. And, experiments show that water spray high electrical insulation strength, water spray grab water pressure 5.5 kg / cm ~ 2 case, and 220 kV charged body distance of 5 meters, the leakage current of only 0.1 mA, To ensure personal safety (handheld fire extinguishers). Therefore, water spray fire extinguishing is especially suitable for extinguishing electrical equipment and insulating oil fires.