變電站項(xiàng)目電氣工程施工工藝標(biāo)準(zhǔn)（附示意圖）

1、目錄第一章變電站一次設(shè)備安裝施工工藝要求................................................................................21變壓器...................................................................................................................

2、.......................21.1適用范圍.....................................................................................................................................21.2設(shè)計(jì)要求................................................

3、.....................................................................................21.3施工工藝要點(diǎn).............................................................................................................................

4、51.4樣板圖片.....................................................................................................................................51.4主要引用標(biāo)準(zhǔn).....................................................................

5、........................................................82HGIS、GIS和封閉母線.............................................................................................................92.1適用范圍................................

6、.....................................................................................................92.2設(shè)計(jì)要求...............................................................................................................

7、......................92.3施工工藝要點(diǎn)...........................................................................................................................102.4樣板圖片........................................................

8、...........................................................................102.5主要引用標(biāo)準(zhǔn)...........................................................................................................................123支柱式斷路器..

9、..........................................................................................................................123.1適用范圍.........................................................................................

10、..........................................123.2設(shè)計(jì)要求...................................................................................................................................123.3施工工藝要點(diǎn)...........................

11、................................................................................................133.4樣板圖片...................................................................................................................

12、................143.5主要引用標(biāo)準(zhǔn)...........................................................................................................................154隔離開關(guān)...............................................................

13、.....................................................................164.1適用范圍...................................................................................................................................164.2設(shè)計(jì)要求..

14、.................................................................................................................................164.3施工工藝要點(diǎn)................................................................................

15、...........................................164.4樣板圖片...................................................................................................................................174.5主要引用標(biāo)準(zhǔn)..........................

16、.................................................................................................19第四章變電站電纜敷設(shè)和防火封堵施工工藝..........................................................................201電纜敷設(shè).....................

17、.................................................................................................................201.1適用范圍..................................................................................................

18、.................................201.2設(shè)計(jì)要求...................................................................................................................................201.3施工工藝要點(diǎn)....................................

19、.......................................................................................211.4樣板圖片............................................................................................................................

20、.......211.5主要引用標(biāo)準(zhǔn)...........................................................................................................................245.電纜二次接線施工工藝.................................................................

21、..............................................245.1適用范圍...................................................................................................................................245.2設(shè)計(jì)要求.........................

22、..........................................................................................................245.3施工工藝要點(diǎn)及主要質(zhì)量控制要點(diǎn).......................................................................................255.4樣板

23、圖片...................................................................................................................................295.5主要引用標(biāo)準(zhǔn)............................................................................

24、...............................................30150mm。感溫電纜以固定卡固定，制作固定卡時(shí)，L1、L2、L3及h1需根據(jù)主變壓器外型，現(xiàn)場校核尺寸，固定卡與主變箱體接觸的部位均應(yīng)裝膠墊或保護(hù)套，以免劃傷器身油漆，感溫電纜終端盒（箱）定位于防火墻靠主變運(yùn)輸?shù)缆范?，離地高度1400mm。d)變壓器基礎(chǔ)的預(yù)埋件應(yīng)水平，應(yīng)與設(shè)備底座安裝配合。裝有氣體繼電器的變壓器、電抗器，應(yīng)使其頂蓋沿氣體繼

25、電器氣流方向有1%~1.5%的升高坡度（制造廠規(guī)定不須安裝坡度者除外），并應(yīng)配置防雨罩。當(dāng)與封閉母線連接時(shí)，其套管中心線應(yīng)與封閉母線中心線相符。（3）接地安裝a)變壓器本體兩點(diǎn)接地，分別與主接地網(wǎng)的不同網(wǎng)格相連。b)外殼及本體的接地牢固，主要包括：本體兩側(cè)與接地網(wǎng)兩處可靠接地；中性點(diǎn)與接地網(wǎng)兩處可靠接地；鐵芯、夾件與接地網(wǎng)可靠連接。c)接地體橫平豎直、工藝美觀。裸露接地線的地上部分應(yīng)涂黃綠相間油漆明示出來，接地漆間隔寬度全站統(tǒng)一為50或

26、100mm。d)接地線的連接宜采用銅排或扁鋼通過螺栓連接。(4)戶外布置的油浸式站用變壓器布置需特別考慮運(yùn)行維護(hù)的人性化要求，油枕上的油位計(jì)朝向應(yīng)便于觀察。其余安裝要求同主變。若其高、低壓套管引出線采用硬母線連接時(shí)，統(tǒng)一加裝熱縮套，使運(yùn)行更加安全。（5）站用變母排及其電纜頭安裝a)套管引出母排安裝：矩形母線應(yīng)進(jìn)行冷彎，多片母線的彎曲度應(yīng)一致。矩形母線的最小彎曲半徑應(yīng)符合驗(yàn)收規(guī)范GBJ1491990的規(guī)定。b)母排連接：矩形母線的搭接連接