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1988年7月12日上午9时10分,气割工小汪戴着皮手套向一只乙炔气微弱的发生器内放电石,先放入一块约0.5kg重的电石,接着又放入一块约1 kg重的电石时,发生器内乙炔气忽然起火,小汪面部烧伤。在场的几位师傅立即将现场其它几个发生器内的气体全部放掉,再去观察时火已熄灭。就在几位师傅一起分析、查找起火原因时,一位师傅无意地将右手伸过去指了一下该发生器,只见其内的乙炔气又燃烧起来。在现场(废钢料场),除一个5m~2的沉渣池边放着5只乙炔发生器外,再无它物。只是在距发生器顶部约10m处,有一条10kV的输电线。根据然奥-萨伐尔定律,输电线周围存在着磁场,人在磁场中运动时切割磁力线,于是在人体内就有感应电动势产生。因此,
At 9:10 on July 12, 1988, gas cutter Xiao Wang wearing leather gloves to a weak acetylene gas generator discharge stones, first put a piece of calcium carbide weighing about 0.5kg, and then put a piece of about 1 kg heavy calcium carbide, acetylene gas generator suddenly fire, Xiao Wang facial burns. The presence of several masters immediately several other gas generator on the scene to let go of the gas, went to observe the fire has been extinguished. In the analysis of several masters together to find the cause of the fire, a master accidentally stretched his right hand pointed to the generator, I saw the acetylene inside it burning again. In the scene (scrap yard), in addition to a 5m ~ 2 sediment pool side of the 5 acetylene generator, there is no other thing. Only at a distance of about 10 m from the top of the generator there is a 10 kV transmission line. According to the natural Austrian - Savart’s law, there is a magnetic field around the transmission line, cutting magnetic lines of force when people move in a magnetic field, so there is induced electromotive force in the human body. therefore,