【正文】 2020 年撫州城網(wǎng)中低壓工程 批準(zhǔn) ： 審核： 編制： 目錄 一、總論 ................................................................................................................................ 5 二、立項(xiàng)依據(jù) ........................................................................................................................ 5 三、立項(xiàng)目的 ........................................................................................................................ 5 四、主要設(shè)計(jì)依據(jù) ................................................................................................................ 5 五、 設(shè)計(jì)選擇的氣象條件 .................................................................................................. 6 六、 導(dǎo)線 .............................................................................................................................. 7 導(dǎo)線的選擇 ............................................................................................................. 7 導(dǎo)線的安全系數(shù) ..................................................................................................... 7 導(dǎo)線的排列 ............................................................................................................. 8 七、 檔距及 線間距離 .......................................................................................................... 8 檔距 ......................................................................................................................... 8 線間距離 ................................................................................................................. 8 八、 桿塔 .............................................................................................................................. 9 九、 金具、絕緣子、防雷及接地 ...................................................................................... 9 金具 ......................................................................................................................... 9 絕緣子 ..................................................................................................................... 9 防雷與接地 ............................................................................................................. 9 十、 拉線及基礎(chǔ) ................................................................................................................ 10 拉線 ..................................................................................................................... 10 基礎(chǔ) ..................................................................................................................... 10 十一、 10kV柱上真空斷路器 .......................................................................................... 10 十二、柱上變壓器臺(tái) .......................................................................................................... 11 2020 年撫州城網(wǎng)中低壓配電網(wǎng)改造工程可研報(bào)告 2 電氣一次部分 ...................................................................................................... 11 電氣主接線 ................................................................................................. 11 主要設(shè)備選擇 ............................................................................................ 11 導(dǎo)體選擇 .................................................................................................... 12 電氣設(shè)備布置及安置方式 .......................................................................... 12 防雷、接地和過(guò)電壓 ................................................................................ 12 電氣二次部分 ................................................................................................. 13 低壓綜合配電箱 ............................................................................................. 13 24B設(shè)計(jì)原則 .......................................................................................................... 13 25B低壓綜合配電箱設(shè)計(jì)采用 L型。 .................................................................. 13 26B低壓綜合配電箱進(jìn)出線 .................................................................................. 13 27B元器件的配置和性能要求 .............................................................................. 14 28B外型、安裝方式 .............................................................................................. 14 十三、 10kV開(kāi)關(guān)站 .......................................................................................................... 15 建站必要性 ......................................................................................................... 15 目前狀況 .................................................................................................. 15 存在的問(wèn)題 .............................................................................................. 16 站址選擇 ............................................................................................................. 16 電力系統(tǒng) ............................................................................................................. 16 接入系統(tǒng)方案 .......................................................................................... 16 電氣接線方式 .......................................................................................... 16 建站規(guī)模 .................................................................................................. 17 一次部分 ............................................................................................................. 17 電氣一次接線方式 .................................................................................. 17 短路電流計(jì)算 .......................................................................................... 17 主要設(shè)備選型 .......................................................................................... 18 配電裝置型式及電氣平面布置 .............................................................. 18 防雷接地、過(guò)電壓保護(hù)及絕緣配合 ...................................................... 18 電纜敷設(shè)及防火 ...................................................................................... 19 2020 年撫州城網(wǎng)中低壓配電網(wǎng)改造工程可研報(bào)告 3 站用電系統(tǒng)及照明系統(tǒng) .....