富民赤鷲（羅免）光伏電站接網(wǎng)工程環(huán)境影響報告表（電磁專題）

專題評價報告項目名稱：富民縣赤鷲（羅免）光伏電站接網(wǎng)工程建設(shè)單位（蓋章）：云南電網(wǎng)有限責(zé)任公司昆明供電局編制日期：二O二二年五月i -1- -3- -3- -3- -3- -4-3、工程概況及工程分析 -5- -5-3.1.1建設(shè)內(nèi)容及項目組成 -5-3.1.2線路交叉跨越情況 -7- -9- -9-4、評價因子、評價范圍、評價標(biāo)準(zhǔn)及評價方法 -11- -11- -11- -11- -11- -12- -12-5、電磁環(huán)境影響現(xiàn)狀調(diào)查與評價 -14- -14- -15- -15- -15-6、電磁環(huán)境影響預(yù)測與評價 -19- -19-6.1.1架空輸電線路電磁環(huán)境影響理論預(yù)測 6.1.2輸電線路電磁環(huán)境影響分析小結(jié) -46- -48- -49- -51- -52- -52- -52- -52- -52- -53- -53-2020年中央經(jīng)濟(jì)工作會議將“做好碳達(dá)峰、碳中和水平面年太陽總輻射資源量1440千瓦時/平米，傾斜面年太陽總輻射資源量1555千瓦時/平米，測算太陽能發(fā)電潛力為2400億千瓦時/年。擁有較好資源“十四五”期間隨著云南高載能用戶的大量投產(chǎn)和西電東送規(guī)模的持續(xù)增公司編制了《富民縣赤鷲（羅免）光伏電站接網(wǎng)工程可行性研究報告》，同年（HJ24-2020），本工程環(huán)境影響評價設(shè)置電磁環(huán)境影響專題評價報告。接受評2、編制依據(jù)2.1相關(guān)法律、法規(guī)），（5）《建設(shè)項目環(huán)境影響評價分類管理名錄（2021年版）》（生態(tài)環(huán)境）；（6）《建設(shè)項目環(huán)境保護(hù)管理條例》，中華人民共和國國務(wù)院令第6822.2環(huán)境影響評價有關(guān)標(biāo)準(zhǔn)、技術(shù)規(guī)程）；）；）；）；）；2.3設(shè)計的規(guī)程、規(guī)范（1）《輸電線路對電信線路危險和干擾影響防護(hù)設(shè)計規(guī)程》）；）；）；）；2.4工程技術(shù)資料3、工程概況及工程分析3.1.1建設(shè)內(nèi)容及項目組成本工程分為線路工程和對側(cè)變電站間隔兩部分：富民縣擬建赤鷲(羅免)光伏電站升壓站220kV出線構(gòu)架，終點為昆明市五華區(qū)西翥街道平地下村東側(cè)已建500kV廠口變220kV進(jìn)線構(gòu)架，線路長度約本期利用500kV廠口變電站內(nèi)自東向西的第三個220kV預(yù)留出線間隔，接注：擬建赤鷲(羅免)光伏電站升壓站相關(guān)內(nèi)容另行委托具備環(huán)境影響評價能力的單位進(jìn)行環(huán)境影響評價，本次評價不再重復(fù)評價。本期新建間隔位置（500kV廠口變）表3-2主要工程內(nèi)容及規(guī)模工程分類工程內(nèi)容建設(shè)規(guī)模主體工程線路工程220kV輸電線起點為云南省富民縣擬建赤鷲(羅免)光伏電站升壓站220kV出線構(gòu)架，終點為昆明市五華區(qū)西翥街道平地下村東側(cè)已建500kV廠口變220kV進(jìn)線構(gòu)架，單回路架設(shè)，線路路徑長約46.5km，其中2×300mm2導(dǎo)線段16.4km，2×500mm2導(dǎo)線段30.1km。光纜通信隨本次新建線路上方架設(shè)兩根48芯OPGW光纜。進(jìn)廠口站約7公里采用2根OPGW-120，其余段采用2根OPGW-100。塔基工程塔基10mm、15mm冰區(qū)直線塔采用貓頭塔、耐張塔采用干字型塔；20mm冰區(qū)直線塔采用酒杯塔、耐張塔采用干字型塔。共新建鐵塔150基，其中，直線塔87基、耐張塔63基。對側(cè)變電站工程在500kV廠口變電站內(nèi)利用220kV出線間隔1個，占用自東向西的第三個220kV預(yù)留出線間隔，采用瓷柱式SF6斷路器，建設(shè)配套繼電保護(hù)及安全自動裝置、調(diào)度自動化、電能量計量系統(tǒng)、通信工程等二次設(shè)施臨時工程料場工程施工過程中使用的混凝土粗、細(xì)骨料及塊石料從所在鎮(zhèn)區(qū)合法料場購買，施工現(xiàn)場不設(shè)置取土場和砂石料加工系統(tǒng)棄渣場工程施工期產(chǎn)生土石方開挖總量19565m3（其中表土剝離4600m3，一般土石方14965m3產(chǎn)生的表土用于施工后生態(tài)恢復(fù)使用，其余土石方用于塔基回填、塔基周邊護(hù)坡使用，無永久棄渣產(chǎn)生，不設(shè)置取土場和永久棄渣場施工營地施工現(xiàn)場不設(shè)置集中施工生活營地，施工人員生活依托周邊集鎮(zhèn)、民房自行解決；本工程分段施工，塔基澆筑采用人工現(xiàn)場拌和，拌和點位于各塔基施工點，不設(shè)置集中混凝土生產(chǎn)加工營地。根據(jù)工程設(shè)計，施工期所用鐵塔等直接購買供應(yīng)商生產(chǎn)的成品使用，施工期施工材料堆放塔基施工處，不另設(shè)施工營地，施工結(jié)束后進(jìn)行恢復(fù)治理臨時施工場地本工程設(shè)置臨時塔基施工區(qū)150處、臨時牽張場6處、臨時跨越施工場地3處。施工結(jié)束后進(jìn)行恢復(fù)治理環(huán)保工程施工物料采用篷布覆蓋、遮擋密目網(wǎng)1500m2，柔性防護(hù)網(wǎng)1200m2施工臨時截排水等水保措施臨時排水溝856m陡坡塔基設(shè)置的漿砌石擋土墻、護(hù)坡、漿砌石擋土墻、護(hù)坡共計2600m2；漿砌排水溝400m排水溝塔基安全警示牌、電力設(shè)施保護(hù)標(biāo)識牌塔基安全警示牌45個、電力設(shè)施保護(hù)標(biāo)識牌45個臨時占地植被恢復(fù)塔基施工區(qū)、牽張場、跨越施工場地施工結(jié)束后進(jìn)行植被恢復(fù)，面積20946m2。表3-2本工程主要技術(shù)指標(biāo)序號項目富民縣赤鷲（羅免）光伏電站接網(wǎng)工程1線路長度新建線路全長約46.5km，新建桿塔150基。2線路架設(shè)方式單回路架設(shè)3面積永久11844m29102m2合計20946m24導(dǎo)線型號2×300導(dǎo)線段采用2×JL/LB20A-300/40鋁包鋼芯鋁絞線，2×500導(dǎo)線段采用2×JL/LB20A-500/45鋁包鋼芯鋁絞線5排列方式三角排列、水平排列6動態(tài)投資9663萬元3.1.2線路交叉跨越情況表3-3本工程線路主要交叉跨越情況表序號名稱跨(穿)越桿號跨(穿)越次數(shù)備注地點1±800kV楚穗直流#108-#109石羊廄2500kV廠口至七甸I回線#002-#003秧草塘3500kV龍廠甲線#162-#1634500kV龍廠乙線#164-#1655220kV廠中線（與#18-#19丁家麥塘6220kV廠赤I回線#37-#38何家麥塘7220kV廠新I回線#58-#59魯世達(dá)8220kV赤獅線#26-#27線路遠(yuǎn)期開斷接入擬建三多變，該段拆除荒田村935kV款散線魯世達(dá)35kV崇款白東線莫衣龍、馬龍汪表3-4220kV輸電線路導(dǎo)線與其它設(shè)施交叉時安全距離要求序號線路經(jīng)過區(qū)域/被跨越物名稱備注1居民區(qū)7.5最大弧垂情況下，導(dǎo)線對地面的最小距離2非居民區(qū)6.53交通困難地區(qū)5.54步行可以到達(dá)的山坡5.5最大風(fēng)偏情況下，導(dǎo)線與山坡、峭壁和巖石的最小凈空距離5步行不能到達(dá)的山坡、峭壁和巖石4.06建筑物6.0最大弧垂情況下，導(dǎo)線與建筑物之間的最小垂直距離5.0最大風(fēng)偏情況下，邊導(dǎo)線與建筑物之間的最小凈空距離2.5無風(fēng)情況下，邊導(dǎo)線與建筑物之間的水平距離7樹木4.5當(dāng)跨越時，導(dǎo)線與樹木之間（考慮自然生長高度）的最小垂直距離4.0最大風(fēng)偏情況下，輸電線路通過公園、綠化區(qū)或防護(hù)林帶，導(dǎo)線與樹木之間的最小凈空距離8果樹、經(jīng)濟(jì)作物、城市綠化灌木及街道樹3.5輸電線路通過果樹、經(jīng)濟(jì)作物、城市綠化灌木及街道樹時，與樹木之間的最小垂直距離9鐵路8.5至軌頂4.0至承力索或接觸線公路（高速公路、一級~四級公路）8.0至路面通航河流7.0至5年一遇洪水位3.0至最高航行水位的最高船桅頂不通航河流4.0至百年一遇洪水位6.5冬季至冰面弱電線路220kV5.0至被跨越弱電線路，電力線路架設(shè)在弱電線路上方。電力線路5.0至被跨越電力線路，電壓等級較高的線路架設(shè)在電壓等級較低的線路上方。220kV7.0330kV9.0500kV750kV根據(jù)工程擬建線路設(shè)計方案，擬建線路與交叉跨越物間最小距離均符合3.3施工設(shè)計環(huán)保對策措施（3）進(jìn)行線路路徑協(xié)調(diào)工作，避開城鎮(zhèn)規(guī)劃區(qū)、開發(fā)區(qū)、居民區(qū)、軍事設(shè)施、廠礦、大型采石場等重要區(qū)域，將區(qū)域環(huán)境（5）盡量避開自然保護(hù)區(qū)、國有林場、水庫水源林、風(fēng)景區(qū)等，在路徑選（7）根據(jù)工程特點合理規(guī)劃設(shè)計使用檔距大，根開小的塔型，從而減小線（8）為了保持自然地形、地貌。鐵塔采用全方位長短腿設(shè)計，配合全方位（9）設(shè)計時注意填挖平衡，減少土石方量，減少借土和棄土?；婧突?、評價因子、評價范圍、評價標(biāo)準(zhǔn)及評價方法表4-1電磁環(huán)境公眾曝露控制限值時段環(huán)境要素評價因子現(xiàn)狀評價因子預(yù)測評價因子運營期電磁環(huán)境影響工頻電場強(qiáng)度（kV/m）工頻磁感應(yīng)強(qiáng)度(μT）工頻電場強(qiáng)度（kV/m）工頻磁感應(yīng)強(qiáng)度(μT）根據(jù)《環(huán)境影響評價技術(shù)導(dǎo)則輸變電》（HJ24-2020），電磁環(huán)境評價工表4-2電磁環(huán)境評價工作等級劃分表分類電壓等級工程條件評價等級交流220kV輸電線路邊導(dǎo)線地面投影外兩側(cè)各15m范圍內(nèi)無電磁環(huán)境敏感目標(biāo)的架空線路三級邊導(dǎo)線地面投影外兩側(cè)各15m范圍有電磁環(huán)境敏感目標(biāo)的架空線路二級），表4-3電磁環(huán)境公眾曝露控制限值頻率范圍電場強(qiáng)度E（V/m）磁感應(yīng)強(qiáng)度B(μT）0.025kHz~1.2kHz200/f5/f輸電線路工作頻率（0.05kHz）4000V/m（4kV/m）100μT（0.1mT）注：1、頻率f的取值為0.05kHz。2、架空輸電線路線下的耕地、園地、牧草地、畜禽飼養(yǎng)地、養(yǎng)殖水面、道路等場所，其頻率50Hz的電場強(qiáng)度控制限值為10kV/m，且應(yīng)給出警示和防護(hù)指示標(biāo)志。本工程220kV輸電線路電磁環(huán)境為二級評價，根據(jù)《環(huán)境影響評價技術(shù)導(dǎo)處的典型線位電磁環(huán)境現(xiàn)狀可實測，也可利用評價范圍內(nèi)已有的最近3年內(nèi)的本次評價對220kV輸電線路電磁環(huán)境現(xiàn)狀采用現(xiàn)狀實測數(shù)據(jù)進(jìn)行評價；運營期輸電線路電磁環(huán)境影響預(yù)測采用《環(huán)境影響評價技術(shù)導(dǎo)則輸變電》表4-4電磁環(huán)境保護(hù)目標(biāo)一覽表層眾暴露控制限值4kV/m房房房村房房房房5、電磁環(huán)境影響現(xiàn)狀調(diào)查與評價5.1布點原則及監(jiān)測布點）：的布點方法以定點監(jiān)測為主，線路小于100km沿線電磁環(huán)境現(xiàn)狀監(jiān)測點位最少表5-1工程現(xiàn)狀監(jiān)測點位布設(shè)一覽表序號測點位置監(jiān)測內(nèi)容1擬建擬建220Kv赤鷲升壓站場址中心2500kV廠口變電站東、南、西、北圍墻外5m處3秧草塘水泵房1#4丁家麥塘2#5寶石洞水庫管理用房3#6石羊廄小村4#7石羊廄5#8魯世達(dá)6#9肖家村種植戶看守房7#±800kV楚穗直流交叉處8#500kV廠口至七甸I回線交叉處9#500kV龍廠甲線交叉處10#500kV龍廠乙線交叉處11#220kV廠中線（與220kV廠赤I回線同塔）交叉處12#220kV廠赤I回線交叉處13#220kV廠新I回線交叉處14#220kV赤獅線交叉處15#工程跨越S102省道處16#本工程新增間隔處垂直于500kV廠口變電站址圍墻外1m、5m、10m、15m、20m、25m、30m、35m、40m、45m、50m（17＃-28#)注：E－工頻電場強(qiáng)度、B－工頻磁感應(yīng)強(qiáng)度。5.2監(jiān)測布點的合理性、代表性分析本工程輸電線路沿線主要為山地和丘陵，沿線電磁環(huán)境、聲環(huán)境處于相當(dāng)水平。本次監(jiān)測的監(jiān)測點位布置于工程起止點及小于100km沿線電磁環(huán)境現(xiàn)狀監(jiān)測點位最少為2個要求，能夠反映輸電線路沿委托監(jiān)測單位中博源檢測（云南）有限公司按照《表5-2監(jiān)測期間氣象條件溫度(℃)濕度（RH%）測量高度晴11.5-27.545-52表5-3工頻電場強(qiáng)度、工頻磁感應(yīng)強(qiáng)度現(xiàn)狀監(jiān)測結(jié)果序號測點位置2022.03.06-07工頻電場強(qiáng)度（V/m）工頻磁感應(yīng)強(qiáng)度(μT）1擬建220Kv赤鷲升壓站場址中心0.132500kV廠口變電站東圍墻外5m處2.43500kV廠口變電站南圍墻外5m處3.21500kV廠口變電站西圍墻外5m處500kV廠口變電站北圍墻外5m處0.643秧草塘水泵房1#4丁家麥塘2#7020.695寶石洞水庫管理用房3#4.56石羊廄小村4#2.690.17石羊廄5#0.088魯世達(dá)6#5.819肖家村種植戶看守房7#±800kV楚穗直流交叉處8#40.7500kV廠口至七甸I回線交叉處9#3.25500kV龍廠甲線交叉處10#500kV龍廠乙線交叉處11#2.25220kV廠中線（與220kV廠赤I回線同塔）交220kV廠赤I回線交叉處13#220kV廠新I回線交叉處14#0.57220kV赤獅線交叉處15#7260.71工程跨越S102省道處16#本工程新增間隔處垂直于500kV廠口變電站址圍2.220本工程新增間隔處垂直于500kV廠口變電站址圍墻外5m21本工程新增間隔處垂直于500kV廠口變電站址圍墻外10m22本工程新增間隔處垂直于500kV廠口變電站址圍墻外15m23本工程新增間隔處垂直于500kV廠口變電站址圍墻外20m24本工程新增間隔處垂直于500kV廠口變電站址圍墻外25m25本工程新增間隔處垂直于500kV廠口變電站址圍墻外30m86226本工程新增間隔處垂直于500kV廠口變電站址圍墻外35m78727本工程新增間隔處垂直于500kV廠口變電站址圍墻外40m70428本工程新增間隔處垂直于500kV廠口變電站址圍墻外45m97429本工程新增間隔處垂直于500kV廠口變電站址圍墻外50ma擬建220Kv赤鷲升壓站：擬建220Kv赤鷲升壓站場址d500kV廠口變電站：500kV廠口變電站界外工頻電場強(qiáng)度在1229~本期利用500kV廠口變電站預(yù)留間隔處1～50m工頻電場強(qiáng)度為704~a擬建220Kv赤鷲升壓站：擬建220Kv赤鷲升壓站場址b保護(hù)目標(biāo)：工程沿線保護(hù)目標(biāo)工頻磁感應(yīng)值為1.7μT，滿足《電磁環(huán)境控制限值》（GB8702-2《電磁環(huán)境控制限值》（GB8702-2014）中工頻磁感應(yīng)強(qiáng)度公眾曝露控制限值d500kV廠口變電站：500kV廠口變電站界外工頻磁感應(yīng)強(qiáng)度在0.64~本期利用500kV廠口變電站預(yù)留間隔處1～50m工頻磁感應(yīng)強(qiáng)度為1.45~6、電磁環(huán)境影響預(yù)測與評價6.1架空輸電線路電磁環(huán)境影響預(yù)測分析6.1.1架空輸電線路電磁環(huán)境影響理論預(yù)測6.1.1.1架空輸電線路工頻電場預(yù)測模型「λλ21「λλ21|2|2|:λ…λ]「Q]λnλ…λ]「Q]λn2…λnn為計算地面電場強(qiáng)度的最大值，通常取設(shè)計最大弧垂時導(dǎo)線的最小對地高Ex=Qi(xxi)Ey=Qi(yyi)Li、L'i——分別為導(dǎo)線I及鏡像至計算點的距離，m。Ix1x2x3xH=x1x2x3xH=H+H+H xyy1y2 xyH=H2+H2為了與環(huán)境標(biāo)準(zhǔn)相對應(yīng)，需要將磁場強(qiáng)度轉(zhuǎn)B=μ0H；μ0——常數(shù)，真空中磁導(dǎo)率(μ0=4π×10-7H/m）。6.1.1.2工程輸電線路模式預(yù)測參數(shù)表6-1工程塔型一覽表鐵塔塔型導(dǎo)線截面積導(dǎo)線直徑分裂分裂方式排列方式設(shè)計最低呼高/m10mm冰區(qū)2C1Y5-ZM12×300mm223.9mm400mm雙分裂三角2C1Y5-ZM22C1Y5-ZM32C1Y5-ZM42C1Y5-J12C1Y5-J22C1Y5-J32C1Y5-J42E1Y5-ZMH12×500mm230mm500mm2E1Y5-ZMH22E1Y5-ZMH32E1Y5-ZMH42E1Y5-J12E1Y5-J22E1Y5-J32E1Y5-J415mm冰區(qū)2E1Y6-ZMH12×500mm230mm500mm三角2E1Y6-ZMH22E1Y6-ZMH32E1Y6-ZMH42E1Y6-J12E1Y6-J22E1Y6-J32E1Y6-J420mm冰區(qū)2C1Y3-Z12×300mm223.9mm400mm水平2C1Y3-Z22C1Y3-J12C1Y3-J22C1Y3-J3綜合對比分析，三角排列電磁最不利影響塔型為間距最大的2E1Y6-J4塔型，水），表6-2理論計算選擇導(dǎo)線及參數(shù)線路參數(shù)富民縣赤鷲（羅免）光伏電站接網(wǎng)工程線路220KV800A導(dǎo)線型式JL/LB20A-500/45鋁包鋼芯鋁絞線2×JL/LB20A-300/40鋁包鋼芯鋁絞線直徑3023.9分裂間距500400排列方式三角排列水平排列導(dǎo)線對地高度非居民區(qū)6.5m居民區(qū)7.5m、8m、9m非居民區(qū)6.5m居民區(qū)7.5m、9m、10m主要塔型2E1Y62C1Y3平）），表6-2工頻電場預(yù)測計算結(jié)果距離線路對地6.5m時地面高度1.5m處工頻電場綜合強(qiáng)度（kV/m）線路對地凈空7.5m時地面高度1.5m處工頻電場綜合強(qiáng)度（kV/m）線路對地凈空8m時地面高度1.5m處工頻電場綜合強(qiáng)度（kV/m）線路對地凈空9m時地面高度1.5m處工頻電場綜合強(qiáng)度（kV/m）-500.06990.07080.07250.0739-490.07280.07380.07570.0772-480.07580.07710.07900.0807-470.07910.08060.08260.0845-460.08270.08430.08640.0886-450.08650.08840.09060.0931-440.09060.09280.09500.0979-430.09500.09750.09990.1031-420.09980.10270.10520.1088-410.10490.10830.11090.1150-400.11060.11450.11720.1218-390.11680.12130.1293-380.12350.12870.13170.1376-370.13100.13700.14020.1468-360.13930.14620.14950.1570-350.14850.15640.15990.1684-340.15870.16800.17160.1812-330.17030.18090.18480.1956-320.18330.19560.19970.2119-310.19820.21240.21660.2304-300.21520.23160.23600.2516-290.23490.25370.25840.2758-280.25760.27940.28420.3037-270.28430.30930.31420.3360-260.31570.34440.34930.3735-250.35310.38580.39060.4173-240.39770.43500.43940.4686-230.45160.49370.49750.5289-220.51700.56410.56690.6001-210.59710.64910.65010.6843-200.69570.75220.75050.78410.81810.87760.87180.90260.97071.03081.01881.04331.16211.21811.19701.20971.40291.44731.41251.40581.70621.72651.67191.63462.08752.06441.89802.56302.46732.34352.19483.14652.93672.75702.51863.84143.46263.20922.85534.62634.01603.67193.18025.43394.54054.09613.45786.13244.95074.41363.64446.53775.14754.54993.69716.48785.05424.45023.58655.94714.65584.10393.30805.03654.00923.55202.88543.95363.21792.87292.36782.89002.40542.16881.8283-12.04761.73811.59121.388701.76301.51081.40751.254712.24341.90001.76271.527923.17472.63492.41382.030534.26713.46173.13592.585845.33384.23483.80323.095556.17904.83594.32133.495166.61425.16954.61963.742076.55235.19484.66843.818786.06644.94384.48983.736195.33264.50184.14513.52744.52533.96663.70833.23633.75913.41663.24322.90493.08802.90112.79392.56622.52652.44402.38482.24252.06852.05222.02611.94631.69991.72331.71901.68311.40501.45071.45991.45371.16951.22601.24321.25630.98111.04131.06291.08770.82980.88960.91300.9445200.70770.76470.78840.8230210.60860.66150.68460.7201220.52780.57600.59780.6328230.46130.50480.52510.5586240.40640.44520.46390.4954250.36060.39510.41220.4413260.32230.35270.36830.3950270.28990.31660.33080.3552280.26230.28580.29860.3208290.23870.25940.27090.2909300.21840.23650.24690.2650310.20080.21660.22600.2423320.18540.19920.20770.2223330.17190.18400.19170.2048340.15990.17060.17750.1893350.14930.15860.16500.1755360.13990.14800.15380.1632370.13140.13850.14380.1522380.12370.13000.1348390.11680.12230.12670.1335400.11050.11530.11930.1255410.10470.10900.11270.1182420.09940.10320.10660.1115430.09460.09790.10100.1055440.09010.09300.09600.1000450.08600.08860.09130.0949460.08220.08440.08690.0902470.07860.08060.08300.0859480.07530.07700.07920.0819490.07220.07370.07580.0782500.06930.07060.07260.0748圖6-1導(dǎo)線對地凈空高度6.5m時線下工頻電場強(qiáng)度分布曲線（距地1.5m）圖6-2導(dǎo)線對地凈空高度7.5m時線下工頻電場強(qiáng)度分布曲線圖（距地1.5m）圖6-3導(dǎo)線對地凈空高度8m時線下工頻電場強(qiáng)度分布曲線圖（距地1.5m）圖6-4導(dǎo)線對地凈空高度9m時線下工頻電場強(qiáng)度分布曲線圖（距地1.5m）在地面1.5m高度處產(chǎn)生的最大工頻電場強(qiáng)6.66142kV/m，滿足線路為此，本次評價要求：工程下步施工設(shè)計時，三角排列架空輸電線路經(jīng)過），表6-3工頻磁場預(yù)測計算結(jié)果距離（m）線路對地6.5m時地面高度1.5m處工頻磁感應(yīng)綜合強(qiáng)度(μT）線路對地凈空7.5m時地面高度1.5m處工頻磁感應(yīng)綜合強(qiáng)度(μT）線路對地凈空8m時地面高度1.5m處工頻磁感應(yīng)綜合強(qiáng)度(μT）線路對地凈空9m時地面高度1.5m處工頻磁感應(yīng)綜合強(qiáng)度(μT）-505.60355.58835.57985.5612-495.72035.70415.69515.6754-485.84215.82495.81545.7944-475.96925.95105.94085.9184-466.10216.08266.07186.0479-456.24106.22036.20876.1833-446.38656.36436.35206.3247-436.53916.51536.50206.4728-426.69916.67366.65936.6280-416.86736.83986.82456.7908-407.04437.01466.99816.9618-397.23077.19867.18087.1416-387.42737.39267.37337.3308-377.63517.59747.57647.5303-367.85507.81397.79107.7408-358.08818.04328.01827.9634-348.33568.28638.25908.1990-338.59898.54478.51478.4488-328.87968.81988.78668.7141-319.17959.11339.07658.9963-309.50069.42699.38619.2970-299.84539.76299.71739.6180-2810.216210.123610.07259.9614-2710.616410.512010.454310.3294-2611.049610.931010.865810.7246-2511.520011.384511.310211.1499-2412.032411.876611.791411.6084-2312.592612.412312.314112.1038-2213.207612.997212.883112.6401-2113.885313.637913.504313.2215-2014.635514.341714.184113.852815.469615.117414.929914.538916.401215.974415.749415.284517.446216.923316.650716.093918.623017.974817.641516.970119.952119.138918.727817.913421.454120.422119.911418.919223.146121.823621.185719.975225.032223.326622.529621.057627.085224.886923.897822.125729.213726.416325.210323.119231.216227.767826.346523.958832.746828.739927.153524.556633.367729.123227.484624.838532.759828.794327.262024.773830.983027.806226.532424.397328.503726.394125.470023.809525.939524.886824.320023.151623.810723.599023.325922.5701-122.461422.767022.678722.1860022.078922.529122.492922.0751122.713022.923022.800322.2585224.280323.885823.548222.7010326.557125.254324.601723.3144429.155326.769325.753923.9689531.516428.104626.754624.5161633.031728.943827.369424.8218733.320129.091827.452524.8004832.432128.544526.991324.4344930.743827.456926.087023.768228.683126.043824.893322.881926.559824.495423.557121.863024.543222.943122.189120.786422.704721.462720.859419.707621.061320.090019.606518.662319.604418.836918.447117.671418.315417.701817.385016.744817.173316.676916.417315.885416.158315.752015.537215.092215.252514.916214.736914.36192014.440614.159414.008313.69002113.709513.472113.343713.07162213.048312.846112.736212.50192312.447712.274012.179311.97632411.900011.749711.667411.49052511.398711.267711.195811.04062610.938010.823210.760010.62312710.513410.412110.356210.23502810.120910.03109.98139.8734299.75689.67679.63239.5357309.41829.34659.30679.2200319.10269.03819.00238.9240328.80778.74948.71708.6462338.53158.47868.44938.3849348.27238.22428.19748.1388358.02857.98467.96017.9066367.79887.75867.73627.6871377.58217.54517.52457.4794387.37717.34317.32427.2826397.18317.15177.13427.0958406.99926.97016.95396.9183416.82456.79756.78246.7494426.65846.63336.61936.5885436.50036.47696.46386.4352446.34956.32776.31556.2888456.20576.18536.17396.1489466.06836.04926.03856.0150475.93695.91895.90895.8869485.81125.79435.78485.7641495.69075.67475.66595.6464505.57515.56015.55175.5333圖6-6導(dǎo)線對地高度6.5m時線下工頻磁場強(qiáng)度分布曲線圖（距地1.5m）圖6-7導(dǎo)線對地凈空高度7.5m時線下工頻磁場強(qiáng)度分布曲線圖（距地1.5m）圖6-8導(dǎo)線對地凈空高度8m時線下工頻磁場強(qiáng)度分布曲線圖（距地1.5m）圖6-9最導(dǎo)線對地凈空高度9m時線下工頻磁場強(qiáng)度分布曲線圖（距地1.5m）線路產(chǎn)生的工頻電場強(qiáng)度最不利塔型為2C1Y3-Z2，根據(jù)《110kV～750kV表6-4工頻電場預(yù)測計算結(jié)果距離（m）線路對地6.5m時地面高度1.5m處工頻電場綜合強(qiáng)度（kV/m）線路對地凈空7.5m時地面高度1.5m處工頻電場綜合強(qiáng)度（kV/m）線路對地凈空9m時地面高度1.5m處工頻電場綜合強(qiáng)度（kV/m）線路對地凈空10m時地面高度1.5m處工頻電場綜合強(qiáng)度（kV/m）-500.09450.10610.12260.1330-490.10050.11280.1303-480.10710.12010.13860.1501-470.12810.14760.1597-460.13680.15750.1702-450.13070.14630.16820.1817-440.14010.15670.18000.1942-430.15050.16820.19280.2078-420.16190.18080.20700.2228-410.17450.19480.22260.2393-400.18860.21020.23970.2574-390.20410.22730.25870.2774-380.22150.24630.27980.2994-370.24090.26750.30310.3239-360.26270.29130.32920.3510-350.28730.31790.35820.3812-340.31500.34790.39080.4148-330.34640.38190.42730.4525-320.38220.42030.46850.4946-310.42320.46410.51500.5420-300.47010.51410.56770.5954-290.52440.57150.62760.6556-280.58720.63750.69580.7236-270.66050.71400.77370.8008-260.74630.80280.86310.8884-250.84740.90630.96570.9879-240.96721.02771.08381.1010-231.17051.21991.2296-221.33901.37691.3755-211.48721.53841.55761.5406-201.73671.77491.76521.72642.03992.05512.00241.93382.40882.38602.27092.16242.85702.77402.57042.40973.39743.22242.89702.67024.03843.72763.24112.93414.77464.27353.58523.18635.57184.82373.90203.40636.34645.31504.15533.56966.95425.66114.30513.65187.22055.77504.31823.63507.03025.60954.18213.51476.42045.19183.91593.30605.58164.62883.57303.04444.78524.08373.23492.78284.31583.73872.99352.58034.36463.71832.91382.48024.87463.99392.99092.48505.57894.39893.14972.5533-16.16874.73883.29372.625806.39774.86983.35042.655716.16874.73883.29372.625825.57894.39893.14972.553334.87463.99392.99092.485044.36463.71832.91382.480254.31583.73872.99352.580364.78524.08373.23492.782875.58164.62883.57303.044486.42045.19183.91593.306097.03025.60954.18213.51477.22055.77504.31823.63506.95425.66114.30513.65186.34645.31504.15533.56965.57184.82373.90203.40634.77464.27353.58523.18634.03843.72763.24112.93413.39743.22242.89702.67022.85702.77402.57042.40972.40882.38602.27092.16242.03992.05512.00241.9338201.73671.77491.76521.7264211.48721.53841.55761.5406221.33901.37691.3755231.17051.21991.2296240.96721.02771.08381.1010250.84740.90630.96570.9879260.74630.80280.86310.8884270.66050.71400.77370.8008280.58720.63750.69580.7236290.52440.57150.62760.6556300.47010.51410.56770.5954310.42320.46410.51500.5420320.38220.42030.46850.4946330.34640.38190.42730.4525340.31500.34790.39080.4148350.28730.31790.35820.3812360.26270.29130.32920.3510370.24090.26750.30310.3239380.22150.24630.27980.2994390.20410.22730.25870.2774400.18860.21020.23970.2574410.17450.19480.22260.2393420.16190.18080.20700.2228430.15050.16820.19280.2078440.14010.15670.18000.1942450.13070.14630.16820.1817460.13680.15750.1702470.12810.14760.1597480.10710.12010.13860.1501490.10050.11280.1303500.09450.10610.12260.1330圖6-11導(dǎo)線對地高度6.5m時線下工頻電場強(qiáng)度分布曲線（距地1.5m）圖6-12導(dǎo)線對地凈空高度7.5m時線下工頻電場強(qiáng)度分布曲線（距地1.5m）圖6-13導(dǎo)線對地凈空高度9m時線下工頻電場強(qiáng)度分布曲線（距地1.5m）圖6-14導(dǎo)線對地凈空高度10m時線下工頻電場強(qiáng)度分布曲線（距地1.5m）為此，本次評價要求：工程下步施工設(shè)計時，水平排列架空輸電線路經(jīng)過居民區(qū)時，導(dǎo)線對地凈空高度應(yīng)不低于10m；經(jīng)過非居民區(qū)時，導(dǎo)線對地凈空表6-5工頻磁場預(yù)測計算結(jié)果距離線路對地6.5m時地面高度1.5m處工頻磁感應(yīng)綜合強(qiáng)度(μT）線路對地凈空7.5m時地面高度1.5m處工頻磁感應(yīng)綜合強(qiáng)度(μT）線路對地凈空9m時地面高度1.5m處工頻磁感應(yīng)綜合強(qiáng)度(μT）線路對地凈空10m時地面高度1.5m處工頻磁感應(yīng)綜合強(qiáng)度(μT）-505.71145.69425.66355.6400-495.83535.81695.78425.7592-485.96485.94525.91035.8835-476.10036.07936.04206.0134-466.24236.21996.17986.1492-456.39136.36726.32426.2912-446.54786.52186.47556.4401-436.71246.68436.63446.5962-426.88586.85546.80146.7601-417.06867.03576.97716.9323-407.26187.22597.16227.1136-397.46617.42707.35757.3046-387.68277.63997.56397.5061-377.91277.86577.78237.7190-368.15748.10558.01387.9443-358.41838.36098.25968.1829-348.69718.63338.52108.4362-338.99568.92458.79948.7053-329.31629.23649.09668.9917-319.66149.57159.41449.2971-3010.03419.93239.75509.6231-2910.437910.321810.12069.9717-2810.876710.743510.513910.3450-2711.355311.201510.937910.7453-2611.879311.700311.395811.1750-2512.455412.245411.891211.6367-2413.091412.842912.428012.1330-2313.796813.500013.010312.6664-2214.582814.224613.642113.2390-2115.462615.025714.327213.8522-2016.451915.912815.068614.506117.568516.895315.867315.198618.831817.981016.721015.924420.260419.173417.621816.672921.867620.466218.552717.426423.649721.834819.483618.158225.564923.222820.366518.830527.497524.526421.133719.395329.212025.582821.700419.798230.337226.185121.977819.987330.457626.139821.897419.926329.345425.360521.437119.607027.155123.929220.636119.055824.340722.067619.587018.329721.386520.039718.409617.504718.629618.069517.223516.660616.249516.311816.130015.870714.329914.864015.206515.195512.916513.787614.509314.6811-112.046814.076014.3597011.752512.899813.929114.2504112.046814.076014.3597212.916513.787614.509314.6811314.329914.864015.206515.1955416.249516.311816.130015.8707518.629618.069517.223516.6606621.386520.039718.409617.5047724.340722.067619.587018.3297827.155123.929220.636119.0558929.345425.360521.437119.607030.457626.139821.897419.926330.337226.185121.977819.987329.212025.582821.700419.798227.497524.526421.133719.395325.564923.222820.366518.830523.649721.834819.483618.158221.867620.466218.552717.426420.260419.173417.621816.672918.831817.981016.721015.924417.568516.895315.867315.19862016.451915.912815.068614.50612115.462615.025714.327213.85222214.582814.224613.642113.23902313.796813.500013.010312.66642413.091412.842912.428012.13302512.455412.245411.891211.63672611.879311.700311.395811.17502711.355311.201510.937910.74532810.876710.743510.513910.34502910.437910.321810.12069.97173010.03419.93239.75509.6231319.66149.57159.41449.2971329.31629.23649.09668.9917338.99568.92458.79948.7053348.69718.63338.52108.4362358.41838.36098.25968.1829368.15748.10558.01387.9443377.91277.86577.78237.7190387.68277.63997.56397.5061397.46