汝城半云仙风电场110千伏送出线路工程环境影响报告表

表8-11、表8-12、图8-3、图8-4。表8-11110kV单回线路（典型杆塔）经过非居民区时电场强度、磁感应强度预测结果表项目与线路关系工频电场强度（V/m）磁感应强度（μT）距线路中心距离（m）距边相导线距离（m）导线对地18m地面1.5m-50边导线外4448.4250.5808-49边导线外4350.9730.6026-48边导线外4253.6940.6255-47边导线外4156.6010.6497-46边导线外4059.7100.6753-45边导线外3963.0370.7023-44边导线外3866.6000.7309-43边导线外3770.4170.7612-42边导线外3674.5090.7934-41边导线外3578.9000.8275-40边导线外3483.6120.8637-39边导线外3388.6720.9021-38边导线外3294.1080.9431-37边导线外3199.9480.9867-36边导线外30106.2261.0331-35边导线外29112.9731.0826-34边导线外28120.2241.1354-33边导线外27128.0151.1918-32边导线外26136.3831.2521-31边导线外25145.3621.3166-30边导线外24154.9891.3856-29边导线外23165.2951.4595-28边导线外22176.3091.5386-27边导线外21188.0511.6233-26边导线外20200.5321.7141-25边导线外19213.7501.8112-24边导线外18227.6821.9153-23边导线外17242.2832.0265-22边导线外16257.4742.1455-21边导线外15273.1372.2723-20边导线外14289.1052.4074-19边导线外13305.1542.5508-18边导线外12320.9882.7027-17边导线外11336.2372.8627-16边导线外10350.4483.0306-15边导线外9363.0843.2057-14边导线外8373.5303.3869-13边导线外7381.1063.5729-12边导线外6385.0953.7619-11边导线外5384.7823.9518-10边导线外4379.5034.1399-9边导线外3368.7074.3234-8边导线外2352.0234.4991-7边导线外1329.3254.6638-6边导线下300.8024.8143-5边导线内267.0344.9475-4边导线内229.1045.0605-3边导线内188.8565.1510-2边导线内149.5855.2170-1边导线内117.7275.25720边导线内104.5365.27071边导线内117.7275.25722边导线内149.5855.21703边导线内188.8565.15104边导线内229.1045.06055边导线内267.0344.94756边导线下300.8024.81437边导线外1329.3254.66388边导线外2352.0234.49919边导线外3368.7074.323410边导线外4379.5034.139911边导线外5384.7823.951812边导线外6385.0953.761913边导线外7381.1063.572914边导线外8373.5303.386915边导线外9363.0843.205716边导线外10350.4483.030617边导线外11336.2372.862718边导线外12320.9882.702719边导线外13305.1542.550820边导线外14289.1052.407421边导线外15273.1372.272322边导线外16257.4742.145523边导线外17242.2832.026524边导线外18227.6821.915325边导线外19213.7501.811226边导线外20200.5321.714127边导线外21188.0511.623328边导线外22176.3091.538629边导线外23165.2951.459530边导线外24154.9891.385631边导线外25145.3621.316632边导线外26136.3831.252133边导线外27128.0151.191834边导线外28120.2241.135435边导线外29112.9731.082636边导线外30106.2261.033137边导线外3199.9480.986738边导线外3294.1080.943139边导线外3388.6720.902140边导线外3483.6120.863741边导线外3578.9000.827542边导线外3674.5090.793443边导线外3770.4170.761244边导线外3866.6000.730945边导线外3963.0370.702346边导线外4059.7100.675347边导线外4156.6010.649748边导线外4253.6940.625549边导线外4350.9730.602650边导线外4448.4250.5808表8-12110kV单回线路（典型杆塔）经过非居民区时电场强度、磁感应强度预测值与现状值对比一览表项目与线路关系工频电场强度（V/m）磁感应强度（μT）工频电场强度（V/m）磁感应强度（μT）工频电场强度（kV/m）磁感应强度（μT）距边相导线距离（m）预测值西侧现状值东侧现状值输电线路中心线下300.8024.81431.5460.01781.5460.0178边导线外0300.8024.81431.4660.01760.2320.0214边导线外5384.7823.95181.5840.01770.3820.0214边导线外10350.4483.03061.1160.01811.6320.0223边导线外15273.1372.27231.4600.01731.8160.0244边导线外20200.5321.71411.6000.01731.3380.0278边导线外25145.3621.31661.2360.01782.5500.0308边导线外30106.2261.03312.3080.01863.0280.0293边导线外3578.9000.82752.9980.01892.0120.0263边导线外4059.7100.67531.9420.01771.7860.0233备注：预测参数电流为765A，现状监测工况为144.3A，监测工况与预测工况存在较大差距，故导致现状监测值比预测值小。图8-3110kV单回线路电场强度预测结果图8-4110kV单回线路磁感应强度预测结果（2）线路沿线电磁环境敏感目标本项目线路沿线电磁环境保护目标采用距离敏感目标最近的塔型1DT431终端塔运行时产生的电场强度、磁感应强度预测结果详见表8-12。表8-13线路沿线电磁环境敏感目标预测结果序号敏感点名称距线路最近房屋的结构距边导线地面投影（m）导线距离地最小高度（m）预测高度（m）预测值现状监测值备注工频电场强度（kV/m）磁感应强度（μT）工频电场强度（kV/m）磁感应强度（μT）1坑尾南侧独栋居民点2层坡顶，泥砖瓦房西侧约16181.50.2422.1310.010860.0200单回路架设4.50.2582.453//备注：预测参数电流为765A，现状监测工况为144.3A，监测工况与预测工况存在较大差距，故导致现状监测值比预测值小。分析与评价（1）电场强度本项目单回架设线路，导线对地最小距离为18m，距离地面1.5m高度处的工频电场强度最大值分别为0.385kV/m，满足4kV/m的控制限值要求。（2）磁感应强度本项目单回架设线路，导线对地最小距离为18m，距离地面1.5m高度处的磁感应强度最大值分别为5.271μT，满足100μT的控制限值要求。（3）线路沿线环境敏感目标本项目单回架设线路沿线电磁环境敏感目标坑尾南侧独栋居民房距离地面1.5m高度处电场强度为0.242kV/m，磁感应强度为2.131μT，距离地面4.5m高度处电场强度为0.258kV/m，磁感应强度为2.453μT，分别满足4kV/m、100μT的控制限值要求。电磁环境影响评价综合结论半云仙110kV开关站工程本项目开关站已建成运行，评价通过类比分析与开关站厂界电磁环境的实测相结合来分析项目电磁环境的影响。类比分析结果表明，丁家坝110kV变电站运营期的电磁环境水平一定程度上能够反映本项目半云仙110kV开关站的电磁环境影响状况；类比监测结果表明，类比对象丁家坝110kV变电站围墙外的电场强度、磁感应强度类比监测值分别小于4000V/m、100μT的控制限值。因此，可以预测半云仙110kV开关站厂界的电场强度、磁感应强度分别小于4000V/m、100μT的控制限值。同时根据监测结果，半云仙110kV开关站厂界工频电场强度为16.01～234.43V/m；工频磁感应强度为0.0235～0.0548µT，低于类比升压站监测值，符合预期，电磁环境满足《电磁环境控制限值》（GB8702-2014）4000V/m、100µT的控制限值要求。110kV架空线路工程模式预测结果表明，在设计的导线对地最小