寧夏固原西南地區(qū)110kV網(wǎng)架優(yōu)化工程環(huán)評(píng)表

建設(shè)項(xiàng)目環(huán)境影響報(bào)告表（生態(tài)影響類）項(xiàng)目名稱：寧夏固原西南地區(qū)110kV網(wǎng)架優(yōu)化工程編制日期：二〇二四年一月中華人民共和國(guó)生態(tài)環(huán)境部制——③施工人員租用項(xiàng)目附近民房，產(chǎn)生的生活垃圾分類收集后，依托租住地生活垃圾收集設(shè)施，處置。按要求處置//電磁環(huán)境//①采用合理的導(dǎo)線截面及結(jié)構(gòu)，提高導(dǎo)線、金具加工工藝及控制導(dǎo)線對(duì)地距離，減少對(duì)周圍電磁環(huán)境影響；②加強(qiáng)項(xiàng)目日常監(jiān)督管理及運(yùn)營(yíng)期工頻電場(chǎng)、工頻磁場(chǎng)的監(jiān)測(cè)工作；③加強(qiáng)對(duì)項(xiàng)目周圍民眾的科普宣傳工作滿足《電磁環(huán)境控制限值》（GB8702-2014）相應(yīng)標(biāo)準(zhǔn)限值環(huán)境風(fēng)險(xiǎn)///按要求處置環(huán)境監(jiān)測(cè)//按照運(yùn)行期環(huán)境監(jiān)測(cè)計(jì)劃對(duì)項(xiàng)目進(jìn)行電磁環(huán)境、聲環(huán)境監(jiān)測(cè)滿足《電磁環(huán)境控制限值》（GB8702-2014）相應(yīng)標(biāo)準(zhǔn)限值；《工業(yè)企業(yè)廠界環(huán)境噪聲排放標(biāo)準(zhǔn)》（GB12348-2008）及《聲環(huán)境質(zhì)量標(biāo)準(zhǔn)》（GB3096-2008）相應(yīng)標(biāo)準(zhǔn)限值其他////——PAGE89—七、結(jié)論本項(xiàng)目符合國(guó)家和地方產(chǎn)業(yè)政策，符合相關(guān)規(guī)劃，項(xiàng)目選線合理，符合固原市生態(tài)保護(hù)紅線管控要求。本項(xiàng)目針對(duì)施工期和運(yùn)行期存在的環(huán)境問題采取相應(yīng)的防治措施，對(duì)評(píng)價(jià)區(qū)域環(huán)境質(zhì)量影響較小。因此，建設(shè)單位認(rèn)真落實(shí)設(shè)計(jì)和本報(bào)告表中的環(huán)保措施，從環(huán)境保護(hù)角度分析，寧夏固原西南地區(qū)110kV網(wǎng)架優(yōu)化工程的建設(shè)是可行的。

寧夏固原西南地區(qū)110kV網(wǎng)架優(yōu)化工程電磁環(huán)境影響專題評(píng)價(jià)建設(shè)單位：國(guó)網(wǎng)寧夏電力有限公司固原供電公司二〇二四年一月一、項(xiàng)目概況①綠塬330kV變電站110kV間隔改造工程：本期利用綠塬變已建110kV間隔（10Y），110kV構(gòu)架和GIS設(shè)備基礎(chǔ)前期已建，本期配套新建一組避雷器支架及基礎(chǔ)。②瓦亭-隆德改接綠塬變110kV線路工程：新建線路長(zhǎng)約2×2.10km（雙回路，雙側(cè)掛線、單側(cè)預(yù)留）+1×0.15km（單回路），新建鐵塔10基，其中雙回路耐張塔4基，雙回路直線塔5基，單回路耐張塔1基。③綠塬-張易Ⅰ線改接將臺(tái)變110kV線路工程：新建線路長(zhǎng)約1×0.23km，新建鐵塔2基，拆除原110kV綠易I線98#-99#段0.3km；拆除原清將線173#、174#水泥門桿及234#、235#鐵塔共4基，并在其附近新建桿塔4基；更換原清將線架空導(dǎo)線19.41km。④清水河-將臺(tái)改接張易變110kV線路工程：167#到擬建綠塬-將臺(tái)100#鐵塔段線路0.07km；拆除167#水泥門桿1基。二、電磁評(píng)價(jià)因子和評(píng)價(jià)標(biāo)準(zhǔn)1、評(píng)價(jià)因子工頻電場(chǎng)、工頻磁場(chǎng)。2、評(píng)價(jià)標(biāo)準(zhǔn)根據(jù)《電磁環(huán)境控制限值》（GB8702-2014）中頻率0.025kHz-1.2kHz的公眾曝露控制限值的規(guī)定，確定電磁環(huán)境影響評(píng)價(jià)標(biāo)準(zhǔn)如下：（1）工頻電場(chǎng)：200/f為輸變電工程評(píng)價(jià)標(biāo)準(zhǔn)，即頻率f=50Hz時(shí)，工頻電場(chǎng)強(qiáng)度E=4000V/m。（2）工頻磁場(chǎng)：5/f為輸變電工程評(píng)價(jià)標(biāo)準(zhǔn)，即頻率f=50HZ時(shí)，工頻磁感應(yīng)強(qiáng)度B=100μT。（3）架空輸電線路下的耕地、園地、牧草地、畜禽飼養(yǎng)地、養(yǎng)殖水面、道路等場(chǎng)所，其頻率50Hz的工頻電場(chǎng)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)識(shí)。三、電磁評(píng)價(jià)工作等級(jí)和評(píng)價(jià)范圍1、評(píng)價(jià)工作等級(jí)本項(xiàng)目輸電線路采用架空線路。架空線路邊導(dǎo)線地面投影外兩側(cè)各10m范圍內(nèi)有電磁環(huán)境敏感目標(biāo)，根據(jù)《環(huán)境影響評(píng)價(jià)技術(shù)導(dǎo)則輸變電》（HJ24-2020），確定架空線路環(huán)境影響評(píng)價(jià)等級(jí)為二級(jí)。綜上，確定本項(xiàng)目電磁環(huán)境影響評(píng)價(jià)等級(jí)為二級(jí)。2、評(píng)價(jià)范圍根據(jù)《環(huán)境影響評(píng)價(jià)技術(shù)導(dǎo)則輸變電》（HJ24-2020）要求，確定110kV架空線路邊導(dǎo)線地面投影外兩側(cè)各30m作為工頻電場(chǎng)、工頻磁場(chǎng)的評(píng)價(jià)范圍。四、電磁環(huán)境敏感目標(biāo)本項(xiàng)目評(píng)價(jià)范圍內(nèi)電磁環(huán)境敏感目標(biāo)見表3-7。五、電磁環(huán)境現(xiàn)狀評(píng)價(jià)為了解本項(xiàng)目運(yùn)行前的電磁環(huán)境質(zhì)量現(xiàn)狀，我單位委托寧夏盛世藍(lán)天環(huán)保技術(shù)有限公司于2023年12月21日對(duì)項(xiàng)目周邊的電磁環(huán)境進(jìn)行了現(xiàn)狀監(jiān)測(cè)，具體詳見附件4。1、監(jiān)測(cè)項(xiàng)目測(cè)量離地1.5m高度處的工頻電場(chǎng)強(qiáng)度、工頻磁感應(yīng)強(qiáng)度。2、監(jiān)測(cè)方法監(jiān)測(cè)方法嚴(yán)格按《交流輸變電工程電磁環(huán)境監(jiān)測(cè)方法（試行）》（HJ681-2013）進(jìn)行監(jiān)測(cè)。3、監(jiān)測(cè)儀器電磁監(jiān)測(cè)儀器見專題表1。專題表1監(jiān)測(cè)儀器一覽表項(xiàng)目工頻電場(chǎng)、工頻磁場(chǎng)監(jiān)測(cè)儀器參數(shù)寧夏盛世藍(lán)天環(huán)保技術(shù)有限公司儀器名稱及型號(hào)測(cè)量范圍生產(chǎn)廠家檢定與校準(zhǔn)SEM-600LF-01D電磁場(chǎng)探頭和讀出裝置工頻電場(chǎng)工頻磁場(chǎng)（10nT-3mT）北京森馥科技股份有限公司出廠編號(hào)：G-2240/D-2238設(shè)備編號(hào)：LT-DC03-1檢定單位：華東國(guó)家計(jì)量測(cè)試中心檢定證書號(hào)：2023F33104837919002有效期：2023.9.19-2024.9.184、監(jiān)測(cè)布點(diǎn)按照《環(huán)境影響評(píng)價(jià)技術(shù)導(dǎo)則輸變電》（HJ24-2020）布點(diǎn)。寧夏固原西南地區(qū)110kV網(wǎng)架優(yōu)化工程：①瓦亭-隆德改接綠塬變110kV線路工程：本次在本線路單回路與雙回路處各布設(shè)1個(gè)監(jiān)測(cè)點(diǎn)，總計(jì)2個(gè)監(jiān)測(cè)點(diǎn)；②清水河-將臺(tái)改接張易變110kV線路工程：本次在改造線路處布設(shè)1個(gè)監(jiān)測(cè)點(diǎn)位。③綠塬-張易Ⅰ線改接將臺(tái)變110kV線路工程：在改造線路處布設(shè)1個(gè)監(jiān)測(cè)點(diǎn)位。④敏感目標(biāo)：本項(xiàng)目共2個(gè)敏感目標(biāo)，各布設(shè)一個(gè)監(jiān)測(cè)點(diǎn)，總計(jì)2個(gè)監(jiān)測(cè)點(diǎn)。具體詳見專題圖1。＊：＊：工頻電、磁場(chǎng)監(jiān)測(cè)點(diǎn)位＊：＊：工頻電、磁場(chǎng)監(jiān)測(cè)點(diǎn)位＊：＊：工頻電、磁場(chǎng)監(jiān)測(cè)點(diǎn)位專題圖1本項(xiàng)目監(jiān)測(cè)點(diǎn)位示意圖5、監(jiān)測(cè)頻次每天監(jiān)測(cè)1次，監(jiān)測(cè)1天。6、監(jiān)測(cè)條件晝間天氣晴，溫度-5.8-2.3℃，濕度27.2-28.8%，靜風(fēng)；7、質(zhì)量控制（1）每次監(jiān)測(cè)前，按儀器使用要求，對(duì)儀器進(jìn)行校準(zhǔn)。（2）監(jiān)測(cè)地點(diǎn)選在地勢(shì)較平坦，盡量遠(yuǎn)離高大建筑物和樹木、電力線和通信設(shè)施的地方。（3）監(jiān)測(cè)人員與天線的相對(duì)位置應(yīng)不影響測(cè)量讀數(shù)，其他人員和設(shè)備應(yīng)遠(yuǎn)離測(cè)試場(chǎng)地。（4）監(jiān)測(cè)儀器經(jīng)校驗(yàn)，并在有效期內(nèi)。（5）監(jiān)測(cè)的條件符合技術(shù)規(guī)范的要求。8、監(jiān)測(cè)結(jié)果電磁環(huán)境現(xiàn)狀監(jiān)測(cè)結(jié)果見專題表2。專題表2電磁環(huán)境現(xiàn)狀監(jiān)測(cè)結(jié)果統(tǒng)計(jì)表測(cè)點(diǎn)序號(hào)行政區(qū)域測(cè)量點(diǎn)位工頻電場(chǎng)強(qiáng)度（V/m）工頻磁感應(yīng)強(qiáng)度（μT）監(jiān)測(cè)值標(biāo)準(zhǔn)值監(jiān)測(cè)值標(biāo)準(zhǔn)值1#固原市西吉縣、隆德縣、涇源縣瓦亭-隆德改接綠塬變110kV線路工程雙回路處468.81100000.53781002#涇源縣小六盤草畜專業(yè)合作社6.07440000.09763#瓦亭-隆德改接綠塬變110kV線路工程單回路處354.73100000.83464#清水河-將臺(tái)轉(zhuǎn)接張易變單回路線路處297.670.36775#綠塬-張易Ⅰ線改接將臺(tái)變單回路線路處127.450.12266#張堡源村西吉縣基礎(chǔ)母牛繁育示范園40.1740000.13589、監(jiān)測(cè)結(jié)果分析根據(jù)監(jiān)測(cè)結(jié)果可知，擬建輸電線路工頻電場(chǎng)強(qiáng)度監(jiān)測(cè)值在127.45V/m~468.81V/m之間，工頻磁感應(yīng)強(qiáng)度監(jiān)測(cè)值在0.1226μT~0.8346μT之間；本項(xiàng)目受附近已運(yùn)行變電站及輸電線路影響，導(dǎo)致工頻電場(chǎng)強(qiáng)度、工頻磁感應(yīng)強(qiáng)度監(jiān)測(cè)數(shù)值較大。敏感目標(biāo)處工頻電場(chǎng)強(qiáng)度監(jiān)測(cè)最大值為40.17V/m，工頻磁感應(yīng)強(qiáng)度監(jiān)測(cè)值為0.1358μT。綜上，該項(xiàng)目建設(shè)區(qū)域內(nèi)，工頻電場(chǎng)強(qiáng)度、工頻磁感應(yīng)強(qiáng)度均低于《電磁環(huán)境控制限值》（GB8702-2014）規(guī)定的4000V/m和100μT標(biāo)準(zhǔn)限值。六、電磁環(huán)境影響預(yù)測(cè)與評(píng)價(jià)根據(jù)《環(huán)境影響評(píng)價(jià)技術(shù)導(dǎo)則輸變電》（HJ24-2020），新建架空線路的電磁環(huán)境影響預(yù)測(cè)采用模式預(yù)測(cè)的方式。1、線路工程根據(jù)《環(huán)境影響評(píng)價(jià)技術(shù)導(dǎo)則輸變電》（HJ24-2020）的規(guī)定，采用模式預(yù)測(cè)方法預(yù)測(cè)架空線路運(yùn)行對(duì)其周圍電磁環(huán)境的影響。（1）預(yù)測(cè)模式本項(xiàng)目架空線路的工頻電場(chǎng)、工頻磁場(chǎng)影響預(yù)測(cè)將參照《環(huán)境影響評(píng)價(jià)技術(shù)導(dǎo)則輸變電》（HJ24-2020）附錄C、D推薦的計(jì)算模式進(jìn)行。①高壓交流架空輸電線路下空間工頻電場(chǎng)強(qiáng)度的計(jì)算（附錄C）a．單位長(zhǎng)度導(dǎo)線上等效電荷的計(jì)算高壓輸電線上的等效電荷是線電荷，由于高壓輸電線半徑r遠(yuǎn)遠(yuǎn)小于架設(shè)高度h，所以等效電荷的位置可以認(rèn)為是在輸電導(dǎo)線的幾何中心。設(shè)輸電線路為無(wú)限長(zhǎng)并且平行于地面，地面可視為良導(dǎo)體，利用鏡像法計(jì)算輸電線上的等效電荷。為了計(jì)算多導(dǎo)線線路中導(dǎo)線上的等效電荷，可寫出下列矩陣方程：U1λ11λ12…λ1mQ1U2=λ21λ22…λ2mQ2???Umλm1λm2…λmmQm式中：U——各導(dǎo)線對(duì)地電壓的單列矩陣；Q——各導(dǎo)線上等效電荷的單列矩陣；Λ——各導(dǎo)線的電位系數(shù)組成的m階方陣（m為導(dǎo)線數(shù)目）。[U]矩陣可由輸電線的電壓和相位確定。b．計(jì)算由等效電荷產(chǎn)生的電場(chǎng)為計(jì)算地面電場(chǎng)強(qiáng)度的最大值，通常取設(shè)計(jì)最大孤垂時(shí)導(dǎo)線的最小對(duì)地高度。當(dāng)各導(dǎo)線單位長(zhǎng)度的等效電荷量求出后，空間任意一點(diǎn)的電場(chǎng)強(qiáng)度可根據(jù)疊加原理計(jì)算得出，在（x，y）點(diǎn)的電場(chǎng)強(qiáng)度分量Ex和Ey可表示為：式中：xi、yi——導(dǎo)線i的坐標(biāo)（i=1、2、…m）；M——導(dǎo)線數(shù)目；Li、Li——分別為導(dǎo)線i及其鏡像至計(jì)算點(diǎn)的距離，m。由于接地架空線對(duì)于地面附近場(chǎng)強(qiáng)的影響很小，對(duì)導(dǎo)線水平排列的幾種情況計(jì)算表明，沒有架空地線時(shí)較有架空地線時(shí)的場(chǎng)強(qiáng)增加約1%～2%，所以常不計(jì)架空地線影響而使計(jì)算簡(jiǎn)化。②高壓交流架空輸電線路下空間工頻磁場(chǎng)強(qiáng)度的計(jì)算（附錄D）由于工頻電磁場(chǎng)具有準(zhǔn)靜態(tài)性，線路的磁場(chǎng)僅由電流產(chǎn)生。應(yīng)用安培定律，將計(jì)算結(jié)果按矢量疊加，可得出導(dǎo)線周圍的磁場(chǎng)強(qiáng)度。在一般情況下，可只考慮處于空間的實(shí)際導(dǎo)線，忽略它的鏡像進(jìn)行計(jì)算，其結(jié)果已足夠符合實(shí)際，如專題圖2。不考慮導(dǎo)線i的鏡像時(shí)，可計(jì)算其在A點(diǎn)產(chǎn)生的磁場(chǎng)強(qiáng)度：式中：I——導(dǎo)線i中的電流值，A；H——導(dǎo)線與預(yù)測(cè)點(diǎn)的高差；L——導(dǎo)線與預(yù)測(cè)點(diǎn)的水平距離，m。專題圖2磁場(chǎng)向量圖本項(xiàng)目為三相線路，水平和垂直場(chǎng)強(qiáng)分別為：Hx=H1x+H2x+H3xHy=H1y+H2y+H3y式中：H1x、H2x、H3x為各相導(dǎo)線的場(chǎng)強(qiáng)的水平分量；H1y、H2y、H3y為各相導(dǎo)線的場(chǎng)強(qiáng)的垂直分量；Hx、Hy為計(jì)算點(diǎn)合成后水平分量和垂直分量（A/m）。為了與環(huán)境標(biāo)準(zhǔn)相對(duì)應(yīng)，需要將磁場(chǎng)強(qiáng)度轉(zhuǎn)換為磁感應(yīng)強(qiáng)度（mT）（一般也簡(jiǎn)稱磁場(chǎng)強(qiáng)度），轉(zhuǎn)換公式的單位為亨利，換算為特斯拉用下公式：B=μ0H式中：B——磁感應(yīng)強(qiáng)度（T）；H——磁場(chǎng)強(qiáng)度（H）；μ0——常數(shù)，真空中相對(duì)磁導(dǎo)率（μ0=4п×10-7H/m）。（2）參數(shù)的選取因輸電線路運(yùn)行產(chǎn)生的工頻電場(chǎng)、工頻磁場(chǎng)主要由導(dǎo)線型式、導(dǎo)線對(duì)地高度、相間距離和線路運(yùn)行工況（電壓、電流等）等因素決定。線路運(yùn)行時(shí)，對(duì)地產(chǎn)生的電磁環(huán)境影響主要取決于導(dǎo)線對(duì)地距離的大小，導(dǎo)線對(duì)地距離越小，影響越大。當(dāng)導(dǎo)線型式、導(dǎo)線對(duì)地高度和線路運(yùn)行工況等相同時(shí)，相間距越大，產(chǎn)生的工頻電場(chǎng)強(qiáng)度和工頻磁感應(yīng)強(qiáng)度影響范圍越大。因此，本次預(yù)測(cè)選取呼稱高最低，當(dāng)呼稱高相同時(shí)，選擇橫擔(dān)最長(zhǎng)的塔型進(jìn)行預(yù)測(cè)，預(yù)測(cè)結(jié)果能夠反映本項(xiàng)目建成投產(chǎn)后電磁環(huán)境影響最不利的情況，偏保守可行。根據(jù)《110kV~750kV架空輸電線路設(shè)計(jì)規(guī)范》（GB50545-2010）的要求，110kV架空線路經(jīng)過非電磁環(huán)境敏感目標(biāo)區(qū)域時(shí)需達(dá)到6.0m，本次導(dǎo)線對(duì)地高度以6m計(jì)，經(jīng)過電磁環(huán)境敏感目標(biāo)區(qū)域時(shí)需達(dá)到7.0m，本次導(dǎo)線對(duì)地高度以7m計(jì)。本次對(duì)經(jīng)過電磁敏感目標(biāo)區(qū)域進(jìn)行6.0m、7.0m電磁預(yù)測(cè)，不經(jīng)過電磁敏感目標(biāo)的區(qū)域只進(jìn)行6.0m預(yù)測(cè)。本項(xiàng)目架空線路電磁計(jì)算參數(shù)見專題表3。專題表3本項(xiàng)目架空線路電磁計(jì)算參數(shù)一覽表工程組成線路架設(shè)方式預(yù)測(cè)參數(shù)導(dǎo)線型號(hào)外徑（mm）線間距（m）分裂導(dǎo)線數(shù)目預(yù)測(cè)電流(A)離地高度（m）相序瓦亭-隆德改接綠塬變110kV線路工程（雙回路）垂直排列工頻電場(chǎng)JL/G1A-300/40-24/723.910.216806.0、7.0/工頻磁場(chǎng)選擇呼高最低、線間距相對(duì)較大的110-DC32S-DJ型鋼塔在導(dǎo)線對(duì)地高度6.0m、7.0m進(jìn)行預(yù)測(cè)。預(yù)測(cè)塔型瓦亭-隆德改接綠塬變110kV線路工程（單回路）三角排列工頻電場(chǎng)JL/G1A-300/40-24/723.99.216806.0ABC工頻磁場(chǎng)選擇呼高最低、線間距相對(duì)較大的110-DC31D-DJ型鋼塔在導(dǎo)線對(duì)地高度6.0m進(jìn)行預(yù)測(cè)。預(yù)測(cè)塔型清水河-將臺(tái)改接張易變110kV線路工程（單回路）三角排列工頻電場(chǎng)JL/G1A-300/40-24/7119.216806.0ABC工頻磁場(chǎng)選擇呼高最低、線間距相對(duì)較大的110-DC31D-DJ型鋼塔在導(dǎo)線對(duì)地高度6.0m進(jìn)行預(yù)測(cè)。預(yù)測(cè)塔型綠塬-張易Ⅰ線改接將臺(tái)變110kV線路工程（單回路）三角排列工頻電場(chǎng)JL/G1A-300/40-24/79.08.416806.0、7.0ABC工頻磁場(chǎng)選擇呼高最低、線間距相對(duì)較大的110-DC31D-J2型鋼塔在導(dǎo)線對(duì)地高度6.0m、7.0m進(jìn)行預(yù)測(cè)。預(yù)測(cè)塔型（3）預(yù)測(cè)結(jié)果及分析1）瓦亭-隆德改接綠塬變110kV線路工程（雙回路+單回路）①雙回路段（1）本次按照兩側(cè)均掛線，同時(shí)帶電的的情況下預(yù)測(cè)在導(dǎo)線對(duì)地高度6.0、7.0m時(shí)產(chǎn)生的工頻電場(chǎng)、工頻磁場(chǎng)預(yù)測(cè)計(jì)算結(jié)果見專題表4，變化趨勢(shì)分別見專題圖3、專題圖4。專題表4雙回路段運(yùn)行時(shí)產(chǎn)生的工頻電場(chǎng)、工頻磁場(chǎng)預(yù)測(cè)值距線路走廊中心線距離(m)導(dǎo)線對(duì)地高度6.0m導(dǎo)線對(duì)地高度7.0m工頻電場(chǎng)強(qiáng)度(kV/m)工頻磁感應(yīng)強(qiáng)度(μT)工頻電場(chǎng)強(qiáng)度(kV/m)工頻磁感應(yīng)強(qiáng)度(μT)-500.0530.3360.0510.334-490.0550.3500.0530.347-480.0570.3650.0540.362-470.0590.3800.0560.377-460.0610.3970.0580.393-450.0630.4140.0600.410-440.0660.4330.0620.429-430.0680.4530.0650.448-420.0710.4750.0670.470-410.0740.4980.0690.492-400.0760.5230.0720.516-390.0800.5490.0740.542-380.0830.5780.0770.570-370.0860.6090.0800.601-360.0890.6430.0820.633-350.0930.6790.0850.668-340.0970.7190.0880.707-330.1000.7620.0910.748-320.1040.8090.0940.793-310.1080.8600.0970.843-300.1120.9160.0990.896-290.1160.9780.1020.956-280.1201.0460.1041.020-270.1241.1210.1061.092-260.1271.2050.1071.170-250.1301.2980.1081.258-240.1331.4010.1071.354-230.1351.5170.1061.462-220.1351.6460.1041.582-210.1351.7930.1011.716-200.1341.9580.0981.866-190.1322.1450.0982.035-180.1322.3590.1042.225-170.1382.6030.1222.439-160.1572.8820.1572.680-150.1973.2030.2142.953-140.2673.5710.2953.259-130.3723.9950.4043.601-120.5224.4790.5473.980-110.7255.0270.7274.390-100.9905.6330.9474.820-91.3216.2721.2025.244-81.7036.8821.4785.614-72.0917.3491.7415.865-62.4037.5031.9495.919-52.5487.1992.0615.723-42.4916.4332.0635.290-32.2885.3761.9814.707-22.0454.2791.8664.111-11.8573.4101.7723.65801.7883.0641.7363.48711.8573.4101.7723.65822.0454.2791.8664.11132.2885.3761.9814.70742.4916.4332.0635.29052.5487.1992.0615.72362.4037.5031.9495.91972.0917.3491.7415.86581.7036.8821.4785.61491.3216.2721.2025.244100.9905.6330.9474.820110.7255.0270.7274.390120.5224.4790.5473.980130.3723.9950.4043.601140.2673.5710.2953.259150.1973.2030.2142.953160.1572.8820.1572.680170.1382.6030.1222.439180.1322.3590.1042.225190.1322.1450.0982.035200.1341.9580.0981.866210.1351.7930.1011.716220.1351.6460.1041.582230.1351.5170.1061.462240.1331.4010.1071.354250.1301.2980.1081.258260.1271.2050.1071.170270.1241.1210.1061.092280.1201.0460.1041.020290.1160.9780.1020.956300.1120.9160.0990.896310.1080.8600.0970.843320.1040.8090.0940.793330.1000.7620.0910.748340.0970.7190.0880.707350.0930.6790.0850.668360.0890.6430.0820.633370.0860.6090.0800.601380.0830.5780.0770.570390.0800.5490.0740.542400.0760.5230.0720.516410.0740.4980.0690.492420.0710.4750.0670.470430.0680.4530.0650.448440.0660.4330.0620.429450.0630.4140.0600.410460.0610.3970.0580.393470.0590.3800.0560.377480.0570.3650.0540.362490.0550.3500.0530.347500.0530.3360.0510.334最大值2.5487.5032.0635.919專題圖3雙回路產(chǎn)生的工頻電場(chǎng)強(qiáng)度分布曲線圖專題圖4雙回路產(chǎn)生的工頻磁感應(yīng)強(qiáng)度分布曲線圖由專題表4和專題圖3、專題圖4可以看出：在經(jīng)過非居民區(qū)及其附近時(shí)，在導(dǎo)線最低允許高度6.0m，地面高度1.5m高度，其工頻電場(chǎng)強(qiáng)度最大值為2.548kV/m，出現(xiàn)在距離線路走廊中心地面投影5m處，其工頻磁感應(yīng)強(qiáng)度最大值為7.503μT，出現(xiàn)在距離線路走廊中心地面投影6m處，在經(jīng)過居民區(qū)及其附近時(shí)，在導(dǎo)線最低允許高度7.0m，地面高度1.5m高度，其工頻電場(chǎng)強(qiáng)度最大值為2.063kV/m，出現(xiàn)在距離線路走廊中心地面投影4m處，其工頻磁感應(yīng)強(qiáng)度最大值為5.919μT，出現(xiàn)在距離線路走廊中心地面投影6m處，均小于《電磁環(huán)境控制限值》（GB8702-2014）規(guī)定的公眾曝露控制限值工頻電場(chǎng)強(qiáng)度4000V/m、10kV/m（線路經(jīng)過耕地、園地、牧草地、畜禽飼養(yǎng)地、養(yǎng)殖水面、道路等場(chǎng)所）和公眾曝露控制限值工頻磁感應(yīng)強(qiáng)度100μT的標(biāo)準(zhǔn)限值。①雙回路段（2）本次按照兩側(cè)均掛線，一側(cè)帶電、一側(cè)預(yù)留的情況下預(yù)測(cè)在導(dǎo)線對(duì)地高度6.0、7.0m時(shí)產(chǎn)生的工頻電場(chǎng)、工頻磁場(chǎng)預(yù)測(cè)計(jì)算結(jié)果見專題表5，變化趨勢(shì)分別見專題圖5、專題圖6。專題表5雙回路段運(yùn)行時(shí)產(chǎn)生的工頻電場(chǎng)、工頻磁場(chǎng)預(yù)測(cè)值距線路走廊中心線距離(m)導(dǎo)線對(duì)地高度6.0m導(dǎo)線對(duì)地高度7.0m工頻電場(chǎng)強(qiáng)度(kV/m)工頻磁感應(yīng)強(qiáng)度(μT)工頻電場(chǎng)強(qiáng)度(kV/m)工頻磁感應(yīng)強(qiáng)度(μT)-500.0390.2030.0380.201-490.0410.2120.0390.210-480.0420.2220.0400.220-470.0440.2320.0420.230-460.0460.2430.0440.240-450.0480.2540.0450.252-440.0500.2670.0470.264-430.0520.2810.0490.277-420.0540.2950.0510.291-410.0560.3110.0530.307-400.0580.3280.0550.323-390.0610.3460.0570.341-380.0640.3660.0590.360-370.0660.3870.0610.381-360.0690.4110.0640.404-350.0720.4360.0660.428-340.0750.4640.0680.455-330.0790.4950.0710.485-320.0820.5280.0730.517-310.0850.5650.0760.552-300.0890.6060.0780.591-290.0920.6520.0800.634-280.0960.7020.0830.682-270.0990.7580.0840.735-260.1030.8210.0860.794-250.1060.8910.0870.860-240.1090.9710.0880.933-230.1111.0600.0881.016-220.1131.1620.0881.110-210.1141.2780.0881.215-200.1161.4110.0891.335-190.1181.5640.0951.471-180.1241.7400.1071.627-170.1371.9440.1301.805-160.1632.1820.1672.010-150.2082.4610.2232.244-140.2792.7880.3002.514-130.3823.1720.4032.822-120.5253.6240.5373.173-110.7204.1520.7053.568-100.9734.7620.9104.002-91.2885.4461.1464.460-81.6486.1681.3964.910-72.0086.8401.6265.300-62.2827.3181.7915.559-52.3787.4511.8485.626-42.2587.1821.7815.482-31.9726.6081.6105.163-21.6125.8911.3794.737-11.2555.1631.1304.27200.9434.4960.8963.81510.6893.9110.6913.39120.4903.4110.5213.01130.3382.9870.3832.67640.2252.6280.2752.38450.1442.3240.1912.13060.0892.0640.1291.90970.0611.8420.0841.71780.0581.6520.0561.55090.0661.4870.0461.404100.0761.3440.0491.276110.0841.2200.0561.163120.0891.1110.0631.063130.0921.0150.0690.975140.0930.9310.0720.897150.0930.8560.0750.827160.0920.7900.0760.765170.0910.7300.0760.709180.0890.6770.0750.658190.0860.6290.0740.613200.0830.5860.0730.572210.0800.5470.0710.535220.0780.5120.0690.501230.0750.4800.0670.470240.0720.4500.0650.442250.0690.4240.0630.416260.0660.3990.0610.392270.0640.3770.0590.371280.0610.3560.0570.351290.0590.3370.0550.332300.0560.3190.0530.315310.0540.3030.0510.299320.0520.2880.0490.284330.0500.2740.0470.271340.0480.2610.0460.258350.0460.2490.0440.246360.0450.2370.0420.235370.0430.2270.0410.225380.0410.2170.0390.215390.0400.2080.0380.206400.0380.1990.0370.197410.0370.1910.0360.189420.0360.1830.0340.182430.0340.1760.0330.175440.0330.1690.0320.168450.0320.1630.0310.162460.0310.1570.0300.156470.0300.1510.0290.150480.0290.1450.0280.145490.0280.1350.0270.140500.0270.2030.0260.135最大值2.3787.4511.8485.626專題圖5雙回路產(chǎn)生的工頻電場(chǎng)強(qiáng)度分布曲線圖專題圖6雙回路產(chǎn)生的工頻磁感應(yīng)強(qiáng)度分布曲線圖由專題表5和專題圖5、專題圖6可以看出：在經(jīng)過非居民區(qū)及其附近時(shí)，在導(dǎo)線最低允許高度6.0m，地面高度1.5m高度，其工頻電場(chǎng)強(qiáng)度最大值為2.378kV/m，出現(xiàn)在距離線路走廊中心地面投影5m處，其工頻磁感應(yīng)強(qiáng)度最大值為7.451μT，出現(xiàn)在距離線路走廊中心地面投影5m處，在經(jīng)過居民區(qū)及其附近時(shí)，在導(dǎo)線最低允許高度7.0m，地面高度1.5m高度，其工頻電場(chǎng)強(qiáng)度最大值為1.848kV/m，出現(xiàn)在距離線路走廊中心地面投影5m處，其工頻磁感應(yīng)強(qiáng)度最大值為5.626μT，出現(xiàn)在距離線路走廊中心地面投影5m處，均小于《電磁環(huán)境控制限值》（GB8702-2014）規(guī)定的公眾曝露控制限值工頻電場(chǎng)強(qiáng)度4000V/m、10kV/m（線路經(jīng)過耕地、園地、牧草地、畜禽飼養(yǎng)地、養(yǎng)殖水面、道路等場(chǎng)所）和公眾曝露控制限值工頻磁感應(yīng)強(qiáng)度100μT的標(biāo)準(zhǔn)限值。②單回路段在導(dǎo)線對(duì)地高度6.0m時(shí)產(chǎn)生的工頻電場(chǎng)、工頻磁場(chǎng)預(yù)測(cè)計(jì)算結(jié)果見專題表6，變化趨勢(shì)分別見專題圖7、專題圖8。專題表6單回路運(yùn)行時(shí)產(chǎn)生的工頻電場(chǎng)、工頻磁場(chǎng)預(yù)測(cè)值距線路走廊中心線距離(m)導(dǎo)線對(duì)地高度6.0m工頻電場(chǎng)強(qiáng)度(kV/m)工頻磁感應(yīng)強(qiáng)度(μT)-500.0180.203-490.0190.212-480.020.221-470.0220.23-460.0230.24-450.0240.251-440.0260.263-430.0270.276-420.0290.289-410.0310.303-400.0330.319-390.0350.336-380.0380.354-370.0410.373-360.0440.395-350.0480.418-340.0520.443-330.0560.47-320.0610.501-310.0670.534-300.0740.57-290.0810.611-280.090.656-270.10.706-260.1110.762-250.1250.824-240.1410.895-230.1590.976-220.1811.067-210.2081.172-200.2391.293-190.2781.434-180.3251.598-170.3831.791-160.4542.021-150.5432.296-140.6542.628-130.7943.034-120.9683.531-111.1844.145-101.4474.902-91.7545.824-82.0836.913-72.3848.115-62.5719.29-52.55410.237-42.30210.808-31.87811.026-21.40211.034-11.0410.98201.01710.95511.3510.95821.81410.91232.23310.67342.48310.09752.5029.16262.3188.00572.0226.82481.6985.75491.3974.847101.1394.102110.9283.497120.7583.007130.6232.607140.5162.279150.432.007160.3621.779170.3071.588180.2621.425190.2251.286200.1951.166210.171.062220.150.971230.1320.891240.1170.821250.1050.758260.0940.703270.0850.653280.0770.609290.0690.568300.0630.532310.0580.499320.0530.469330.0490.441340.0450.416350.0420.393360.0390.372370.0360.353380.0340.335390.0320.318400.030.303410.0280.288420.0260.275430.0250.262440.0230.251450.0220.24460.0210.23470.020.22480.0190.211490.0180.2500.0170.195最大值2.57111.034專題圖7單回路產(chǎn)生的工頻電場(chǎng)強(qiáng)度分布曲線圖專題圖8單回路產(chǎn)生的工頻磁感應(yīng)強(qiáng)度分布曲線圖由專題表6和專題圖7、專題圖8可以看出：在經(jīng)過非居民區(qū)及其附近時(shí)，在導(dǎo)線最低允許高度6.0m，地面高度1.5m高度，其工頻電場(chǎng)強(qiáng)度最大值為2.571kV/m，出現(xiàn)在距離線路走廊中心地面投影6m處，其工頻磁感應(yīng)強(qiáng)度最大值為11.034μT，出現(xiàn)在距離線路走廊中心地面投影2m處，小于《電磁環(huán)境控制限值》（GB8702-2014）規(guī)定的公眾曝露控制限值工頻電場(chǎng)強(qiáng)度4000V/m、10kV/m（線路經(jīng)過耕地、園地、牧草地、畜禽飼養(yǎng)地、養(yǎng)殖水面、道路等場(chǎng)所）和公眾曝露控制限值工頻磁感應(yīng)強(qiáng)度100μT的標(biāo)準(zhǔn)限值。2）清水河-將臺(tái)改接張易變110kV線路工程（單回路）在導(dǎo)線對(duì)地高度6.0m時(shí)產(chǎn)生的工頻電場(chǎng)、工頻磁場(chǎng)預(yù)測(cè)計(jì)算結(jié)果見專題表7，變化趨勢(shì)分別見專題圖9、專題圖10。專題表7單回路運(yùn)行時(shí)產(chǎn)生的工頻電場(chǎng)、工頻磁場(chǎng)預(yù)測(cè)值距線路走廊中心線距離(m)導(dǎo)線對(duì)地高度6.0m工頻電場(chǎng)強(qiáng)度(kV/m)工頻磁感應(yīng)強(qiáng)度(μT)-500.0190.203-490.0200.212-480.0210.221-470.0220.230-460.0230.240-450.0240.251-440.0260.263-430.0270.276-420.0290.289-410.0310.303-400.0330.319-390.0360.336-380.0380.354-370.0410.373-360.0440.395-350.0480.418-340.0520.443-330.0560.470-320.0620.501-310.0670.534-300.0740.570-290.0810.611-280.0900.656-270.1000.706-260.1120.762-250.1250.824-240.1410.895-230.1590.976-220.1811.067-210.2081.172-200.2401.293-190.2781.434-180.3251.598-170.3831.791-160.4542.021-150.5432.296-140.6542.628-130.7933.034-120.9683.531-111.1844.145-101.4474.902-91.7545.824-82.0836.913-72.3848.115-62.5709.290-52.55310.237-42.30210.808-31.87811.026-21.40111.034-11.03910.98201.01610.95511.34910.95821.81310.91232.23210.67342.48310.09752.5019.16262.3188.00572.0226.82481.6985.75491.3974.847101.1394.102110.9283.497120.7583.007130.6232.607140.5162.279150.4302.007160.3621.779170.3071.588180.2621.425190.2261.286200.1961.166210.1711.062220.1500.971230.1320.891240.1180.821250.1050.758260.0940.703270.0850.653280.0770.609290.0700.568300.0640.532310.0580.499320.0530.469330.0490.441340.0450.416350.0420.393360.0390.372370.0360.353380.0340.335390.0320.318400.0300.303410.0280.288420.0260.275430.0250.262440.0230.251450.0220.240460.0210.230470.0200.220480.0190.211490.0180.200500.0170.195最大值2.5711.034專題圖9單回路段產(chǎn)生的工頻電場(chǎng)強(qiáng)度分布曲線圖專題圖10單回路段產(chǎn)生的工頻磁感應(yīng)強(qiáng)度分布曲線圖由專題表7和專題圖9、專題圖10可以看出：在經(jīng)過非居民區(qū)及其附近時(shí)，在導(dǎo)線最低允許高度6.0m，地面高度1.5m高度，其工頻電場(chǎng)強(qiáng)度最大值為2.570kV/m，出現(xiàn)在距離線路走廊中心地面投影6m處，其工頻磁感應(yīng)強(qiáng)度最大值為11.034μT，出現(xiàn)在距離線路走廊中心地面投影2m處，小于《電磁環(huán)境控制限值》（GB8702-2014）規(guī)定的公眾曝露控制限值工頻電場(chǎng)強(qiáng)度4000V/m、10kV/m（線路經(jīng)過耕地、園地、牧草地、畜禽飼養(yǎng)地、養(yǎng)殖水面、道路等場(chǎng)所）和公眾曝露控制限值工頻磁感應(yīng)強(qiáng)度100μT的標(biāo)準(zhǔn)限值。3）綠塬-張易Ⅰ線改接將臺(tái)變110kV線路工程（單回路）在導(dǎo)線對(duì)地高度6.0、7.0m時(shí)產(chǎn)生的工頻電場(chǎng)、工頻磁場(chǎng)預(yù)測(cè)計(jì)算結(jié)果見專題表8，變化趨勢(shì)分別見專題圖11、專題圖12。專題表8單回路線路運(yùn)行時(shí)產(chǎn)生的工頻電場(chǎng)、工頻磁場(chǎng)預(yù)測(cè)值距線路走廊中心線距離(m)導(dǎo)線對(duì)地高度6.0m導(dǎo)線對(duì)地高度7.0m工頻電場(chǎng)強(qiáng)度(kV/m)工頻磁感應(yīng)強(qiáng)度(μT)工頻電場(chǎng)強(qiáng)度(kV/m)工頻磁感應(yīng)強(qiáng)度(μT)-500.0170.1840.0180.183-490.0180.1910.0190.190-480.0190.1990.0200.198-470.0200.2080.0220.207-460.0210.2170.0230.216-450.0220.2270.0240.225-440.0240.2370.0260.235-430.0250.2480.0270.246-420.0270.2600.0290.258-410.0280.2730.0310.271-400.0300.2860.0330.284-390.0320.3010.0350.299-380.0350.3170.0380.315-370.0370.3350.0410.332-360.0400.3530.0440.350-350.0430.3740.0480.370-340.0470.3960.0520.392-330.0510.4200.0560.416-320.0550.4470.0610.442-310.0600.4760.0660.470-300.0660.5080.0730.501-290.0720.5430.0800.536-280.0790.5820.0880.574-270.0880.6260.0970.616-260.0980.6750.1080.663-250.1090.7290.1200.715-240.1220.7900.1350.774-230.1380.8590.1520.840-220.1560.9380.1710.915-210.1781.0280.1951.000-200.2041.1310.2221.098-190.2351.2500.2551.209-180.2731.3890.2951.339-170.3201.5510.3421.489-160.3781.7430.4001.664-150.4501.9720.4701.870-140.5392.2470.5552.114-130.6512.5800.6582.405-120.7922.9870.7832.752-110.9693.4890.9333.167-101.1884.1091.1083.663-91.4524.8751.3064.249-81.7575.8081.5144.927-72.0756.9011.7105.680-62.3498.0921.8556.464-52.4899.2311.9017.202-42.41110.1221.8147.811-32.10710.6511.5958.239-21.66410.8671.2918.488-11.23810.9131.0028.60401.06810.9100.8878.63011.29910.8981.0408.58221.73810.8221.3388.43832.16310.5481.6308.15242.4259.9441.8247.68552.4558.9921.8837.04562.2827.8311.8136.29271.9936.6541.6555.51281.6755.5941.4554.77391.3784.6991.2484.115101.1243.9661.0553.549110.9153.3740.8863.072120.7472.8940.7432.673130.6142.5040.6232.339140.5082.1840.5252.059150.4231.9200.4441.824160.3561.7000.3781.624170.3011.5150.3231.455180.2571.3580.2781.310190.2211.2230.2401.185200.1911.1080.2091.076210.1671.0080.1830.982220.1460.9210.1610.899230.1290.8440.1420.826240.1140.7770.1270.761250.1020.7170.1130.704260.0910.6640.1010.653270.0820.6160.0910.607280.0740.5740.0820.565290.0680.5360.0750.528300.0610.5010.0680.495310.0560.4700.0620.464320.0520.4410.0570.436330.0470.4150.0520.411340.0440.3910.0480.387350.0400.3690.0440.366360.0380.3490.0410.346370.0350.3310.0380.328380.0330.3140.0350.311390.0300.2980.0330