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矿井下不能有明火,否则就会引起瓦斯或煤尘爆炸。《煤矿井下电气安全》的主题,即告诫矿工在井下要杜绝一切电气明火,确保安全生产。拍电影离不开电,若用钨丝灯,没有防爆装置,不能清除线头接触处的电火花。因此,厂领导一再督促我们,拍煤矿安全,一定要注意矿井和自身的安全。我们在井上对电瓶碘钨灯进行测温试验,得出在20秒时间内,距离2米左右的受光面的温度不超过摄氏100度,而井下的爆炸温度是摄氏600度以上。这就表明只要长关短开,电瓶碘钨灯在井下是可以用的。
Mine can not have open flame, otherwise it will cause gas or coal dust explosion. “Coal mine electrical safety” theme, that is to warn miners in the underground to put an end to all electrical fire, to ensure safe production. Movies are inseparable from the film, if the tungsten lamp, there is no explosion-proof device, you can not clear the wire contact at the spark. Therefore, the factory leaders have repeatedly urged us to shoot coal mine safety, we must pay attention to the mine and its own safety. We conducted a well-temperature test of the battery iodine tungsten lamp in the well and found that the temperature of the light-receiving surface at a distance of about 2 meters does not exceed 100 degrees Celsius in 20 seconds while the explosion temperature in the underground is above 600 degrees Celsius. This shows that as long as the short the long off, the battery can be used in the downhole tungsten iodine.