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根据国内外的测试资料,压气装药系统产生的静电电压,一般可达2.5～3万伏,有时可达10万伏。这给机械化装药爆破工作带来极大危害。当裸露的雷管脚线直接与带电药流和输药管接触时,在气候干燥,火药与输药软管绝缘很高的情况下,如果积累的静电能量超过雷管的最小引爆能量,就可能产生火花放电,从而引起雷管早爆。一般管体和引火头间的最小发火能量为0.14毫焦左右;脚线间为0.8～4.9毫焦;抗静电雷管为50～100毫焦。
According to the test data at home and abroad, the static voltage generated by the pressurized charge system can generally reach 2.5 to 30,000 volts, sometimes up to 100,000 volts. This brings great harm to mechanized charge blasting. When a naked detonator pin is in direct contact with the charged drug flow and the infusion tube, it may occur if the accumulated electrostatic energy exceeds the minimum detonation energy of the detonator when the climate is dry and the insulation between the powder and the infusion tube is very high Spark discharge, causing detonator early burst. The minimum ignition energy between the general body and the lead is about 0.14 milli-Joule; between the foot lines is 0.8 to 4.9 milli-Joule; antistatic detonator is 50 to 100 millijoules.