中文摘要：

研究了煤矿井下电快速瞬变脉冲群对电磁辐射环境的影响，分析了电快速瞬变脉冲群的频谱特性，确定了频谱分析仪的测量频率范围为3MHz～1GHz，并对现场测试方法进行了研究．结果表明：电快速瞬变脉冲群对煤矿井下电磁辐射环境的影响较小，矿用本质安全型电子设备对环境的电磁辐射能量较小，矿用隔爆型电气设备防爆外壳对辐射噪声的抑制效果明显．

英文摘要：

In order to study the radiated noise caused by an electrical fast transient/burst（EFT/B） in a mine, its frequency-spectrum characteristics are analyzed. The measured frequency of spectrum analyzer is in the range of 3 MHz-1GHz, and the method of field test is investigated. The results showed that the effect of EFT/B upon the electromagnetic radiated the environment 4, in mine tunnel remained very limited, and the radiated emission energy of intrinsic-safe electronic equipment also limited. It is shown that the radiated noise can be suppressed by the explosion- proof shell of electrical apparatuses in mine.