确保人和设备安全的防雷接地要求摘要：在雷电高频繁活动地区，例

1XY500m300mA70mBC25m30mABCXY1501a——B,,10m1Im10mImkAABC2rI3ImdhABCABC416m4a1a2a3a4b1b2b3b4a1a2a3a4b1b2b3b410Im141ABCIm20kAABCAa1a2a3a4b1b2b3b4a1,a2,a3,a4,b1,b2,b3,b4558.1mSSpp70000m235mm20.5m3m1.5m6Ir=i/IiIt6427I=1At,G,t14=|g|14dt/Max[|g|14](1)G=Max[|g|]/Max[|te|](2)g=g[t]ic[t],t1.4G8-11IacIackA1829101118++291011++++8810kA910119D90m10D20m11D10m91011D9Iac30kA30kA910D20m11D10m91011491011DmDmDm=10mIac80kA450191011D4Iac210kA220kA145015013uaII3ûa|ua|Su14=|ua|14dtSu1=|ua|dtSu2=|ua|2dt44P1=|g|dt/Max[|ie|]P6=g2dt/ie2dtP2=g2dt/Max[|ie|2]P7=g1.4dt/ie1.4dtP3=g1.4dt/Max[|ie|1.4]P8=gdt/Max[|g|]P4=Max[g]/Max[|ie|]P9=g2dt/Max[g2]P5=gdt/iedtP10=g1.4dt/Max[|g|1.4]12P8P9P10N12612ABACarlosPortelaRiodeJaneiro