lightning bar防雷带lightningn.闪电；意外的幸运adj.闪电般的；快速的lightning shielding failure trip雷电绕击跳闸Lightning struckrisk coefficient雷击风险系数lightning protection performance耐雷性能lightning casualties and damages灾情lightning-caused line breakage雷击断线Lightning electromagnetism pulse雷电电磁脉冲lightning protection and earthing防雷接地lightning invading over-voltage雷电侵入波过电压lightning impulse withstand level耐雷水平Lightning electromagnetic impulse雷击电磁脉冲