抗杂散电流毫秒电雷管(简称抗杂管)是我国研制成功的一种新型矿用雷管,1970年以来,第十五冶金建设公司十五井巷公司、河北铜矿、梅山铁矿对抗杂管的性能和参数作了系统的研究与测定。水城钢铁厂观音山铁矿坑内铁矿石导电性高,层理节理发育,湿度大,地下水经裂隙断层渗入矿体,由此往往构成了杂散电流 Anti stray current millisecond electric detonator (anti-miscellaneous pipe) is a new type of mining detonator successfully developed in our country. Since 1970, No. 15 Metallurgical Construction Company, No. 15 Jingxiang Company, Hebei Copper Mine and Meishan Iron Ore Mine Complex Pipe performance and parameters were systematically studied and measured. Iron and Steel Mine in Guanyinshan Iron Mine, Shuicheng Iron & Steel Mine, is characterized by high conductivity, stratified joint development, high humidity and infiltration of groundwater into the ore body by fissure faults, which often result in stray currents