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在充有爆炸性混合物的 车间或厂区,必须使用防爆 起重机,绝对禁止使用一般 用途起重机。这是因为一般 用途的起重机没有防爆措 施,电气设备经常产生火花、电弧或危险温度,引起爆炸性混合物爆炸和自燃。 爆炸性混合物的传爆级别和自然温度组别 爆炸性混合物一般是指可燃性气体、
Explosion-proof cranes must be used in workshops or sites filled with explosive mixtures. General purpose cranes are forbidden. This is because cranes for general use are not explosion protected and electrical equipment often generates sparks, arcing or dangerous temperatures that cause the explosive mixture to explode and ignite spontaneously. Explosive mixture explosion level and natural temperature group Explosive mixture generally refers to combustible gas,