1、临时用电施工方案最终版临时用电施工方案-最终版新建连镇铁路站前工程LZZQ-1标跨新沂河特大桥项目三分部临时用电专项施工方案工 程 名 称: 新建连云港至镇江铁路站前工程 编 写 单 位: 中铁十局集团连镇铁路工程项目经理部 名目临时用电专项施工方案一、 编制依据及编制原则1.1 编制依据(1)施工现场临时用电安全技术规范JGJ46-2005;(2)低压配电设计规范GB50054-95 (3)建筑工程施工现场供用电安全规范GB50194-93 (4)通用用电设备配电设计规范GB50055-93(5)供配电系统设计规范GB50052-95(6)建筑施工安全检查标准JGJ59-99(7)安装工程施
2、工及验收规范(8)建筑电气安装工程质量检验评标准。(9)现场临时用电设备负荷和配置资料,其他有关的国家现行规范、标准和规程规定。(10)施工组织施工机械打算。1.2 编制原则安全第一、质量至上原则。精心组织施工,合理安排工期。坚持技术先进、方案优化、施工组织科学合理、按期优质安全高效、不留后患。重视生态环境,在施工期间及竣工通车后保证不发生水土流失,保证不破坏环境。贯彻执行国家和当地政府的方针政策,遵守法律法规,尊重当地的民风民俗。坚持专业化作业与综合治理相结合。充分发挥专业人员和专用设备的优势,采纳先进的施工技术,综合治理,合理调配,科学安排各项施工程序,组织连续、均衡、紧凑有序地施工,确保
3、工期目标实现。有效爱护地下管线和既有构筑物,减少扰民,切实爱护建设单位及地点群众的利益,创建文明标准工地。1.3 编制范畴适用于新建连云港至镇江铁路段(DK24+406.55-DK34+612.8)范畴内临时用电施工。二、工程概况2.1 项目简介连镇铁路地处我国东部沿海地带,位于江苏省南北纵向中轴线上。线路北起苏北连云港市,沿宁连高速公路引入淮安市,与京杭运河、京沪高速公路并行,向南经苏中扬州市,跨长江后止于苏南镇江市,正线全长304.81km。站前工程LZZQ-1标, 里程范畴为DK2+033-DK46+383.2、YDK2+077.533-YDK5+528.435,正线长度40.339km
4、,接轨于在建连盐铁路董集站,董集至连云港段近期与连盐线共线引入连云港站,远期直截了当引入连云港站高速场。沿途通过连云港市灌云县、灌南县。我分部负责新沂河特大桥DK24+406.55-DK34+612.8段施工,长10.206km,起点位于灌云县张庄,终点位于灌南县张店镇,沿线跨过G204、六里河、青年河、石剑河 、新沂河。要紧结构物及内容为:钻孔桩2456根,打入桩250根,承台299个,墩台299个,(16+20+20+16)m连续钢构1处(跨G204),3-(256)mT构2处(跨新沂河南、北偏泓)、(60+100+60)m连续梁2处(跨新沂河南、北大堤)、(48+80+48)m连续梁1处
5、(跨新沂河中偏泓)。2.2变压器设置情形 施工用电利用当地10KV高压贯穿线,打算设6台400KW、设1台630KW变压器。新沂河特大桥(DK24+406.55-DK34+612.8)全长10.206km,起点位于灌云县张庄,终点位于灌南县张店镇,沿线就近“T”接线路架空设置7台变压器,其中1-6#为400KVA的变压器为施工提供临时用电,7#为630KVA的变压器为搅拌站提供临时用电。变压器的具体位置及供应范畴如下:就近“T”接高压贯穿线,再通过架设380V低压贯穿线贯穿全桥提供施工用电。配电采纳三相五线制输出供电方式,接地电阻小于4。每个总配电箱外壳都做良好接地爱护,分配电箱按“一机、一闸
6、、一漏”爱护措施,电缆截面选择满足设备负荷需要。为了保证施工现场供电安全、可靠、经济,施工临时用电安装采纳全国统一电力安装技术规范要求进行施工。连镇三分部临时用电变压器设置序号用途设置位置功率(KVA)备注10-52#墩台施工DK24+730.82(新沂河特大桥12#墩东侧)400253-117#墩施工DK27+724.46(新沂河特大桥105墩东侧)4003118-169#墩、100m连续梁、3-25mT构施工、钢筋加工厂施工DK29+801.75(新沂河特大桥100m连续梁东侧)4004170-202#墩、80m连续梁施工DK30+641.2(新沂河特大桥80m连续梁东侧)4005203-
7、248#墩、100m连续梁、3-25mT构、钢筋加工厂施工DK31+871.6(新沂河特大桥100m连续梁西侧)4006249-298#墩施工DK33+050.63(新沂河特大桥250#墩西侧)4007180#混凝土拌合站X301县道盐河大桥南侧6301#变压器用电设备表(2#、5#、6#变压器同1#)设备名称单位数量功率累计桩机台640KW240KW泥浆泵台160KW60KW卷扬机台140KW40KW水泵台13KW3KW打桩照明台60.6KW3.6KW合计346.6KW3#变压器用电设备表(4#变压器同3#)设备名称单位数量功率累计钢筋对焊机台220KW40KW钢筋调直切断机台25.5KW1
8、1KW钢筋切断机台27KW14KW钢筋弯曲机台23KW6KW交流电焊机台611KW66KW钢筋室外加工照明台128KW96KW职工办公、生活区处150KW50KW作业队办公、生活区处140KW40KW合计323KW7#变压器用电设备表设备名称单位数量功率累计180#搅拌楼套2250KW500KW职工办公、生活处150KW50KW作业队办公、生活处140KW40KW三、现场勘测现场实际情形沿线用电来源于华东电网,电力资源丰富。10KV高压电力线或交错或平行线路分布,施工用电可就近引入。本线特大桥结合工程具体位置、用电量及电源情形,考虑施工用电实际,施工用电采纳以地点电为主,自发电为辅的供电方式。
9、(1)本工程所在施工现场范畴内无各种埋地管线。(2)现场采纳380V低压供电,设配电总箱,内有计量设备,采纳TN-S系统供电。(3)按照施工现场用电设备布置情形,1#变压器总线采纳电缆线空气明敷,干1采纳导线架空敷设,干2采纳电缆线空气明敷,干3采纳导线架空敷设,分1采纳导线架空敷设,分2采纳导线架空敷设,分3采纳导线架空敷设,分4采纳导线架空敷设,分5采纳导线架空敷设。3#变压器总线采纳电缆线空气明敷,干1采纳导线架空敷设,干2采纳导线架空敷设,分1采纳导线架空敷设,分2采纳导线架空敷设,分3采纳导线架空敷设,分4采纳导线架空敷设。7#变压器总线采纳铜排接进配电房,干1采纳导线架空敷设,干2
10、采纳导线架空敷设,干3采纳导线架空敷设,分1采纳导线架空敷设,分2采纳导线架空敷设,分3采纳导线架空敷设布置位置及线路走向参见临时配电系统图及现场平面图,采纳三级配电,两极防护。(4)按照JGJ46-2005规定制定施工组织设计,接地电阻R4。四、现场临时用电负荷运算1#变压器的负荷运算(1)回旋钻机Kx = 0.70,Cos = 0.70,tg = 1.02Pjs = KxPe = 0.70 40.00 = 28.00kWQjs = Pjstg = 28.00 1.02 = 28.57kVar(2) 回旋钻机Kx = 0.70,Cos = 0.70,tg = 1.02Pjs = KxPe =
11、 0.70 40.00 = 28.00kWQjs = Pjstg = 28.00 1.02 = 28.57kVar(3) 回旋钻机Kx = 0.70,Cos = 0.70,tg = 1.02Pjs = KxPe = 0.70 40.00 = 28.00kWQjs = Pjstg = 28.00 1.02 = 28.57kVar(4) 回旋钻机Kx = 0.70,Cos = 0.70,tg = 1.02Pjs = KxPe = 0.70 40.00 = 28.00kWQjs = Pjstg = 28.00 1.02 = 28.57kVar(5) 回旋钻机Kx = 0.70,Cos = 0.70,
12、tg = 1.02Pjs = KxPe = 0.70 40.00 = 28.00kWQjs = Pjstg = 28.00 1.02 = 28.57kVar(6) 回旋钻机Kx = 0.70,Cos = 0.70,tg = 1.02Pjs = KxPe = 0.70 40.00 = 28.00kWQjs = Pjstg = 28.00 1.02 = 28.57kVar(7)泥浆泵Kx = 0.70,Cos = 0.70,tg = 1.02Pjs = KxPe = 0.70 60.00 = 42.00kWQjs = Pjstg = 42.00 1.02 = 42.85kVar(8)卷扬机Kx =
13、 0.30,Cos = 0.70,tg = 1.02Pjs = KxPe = 0.30 40.00 = 12.00kWQjs = Pjstg = 12.00 1.02 = 12.24kVar(9)水泵Kx = 0.70,Cos = 0.70,tg = 1.02Pjs = KxPe = 0.70 3.00 = 2.10kWQjs = Pjstg = 2.10 1.02 = 2.14kVar(10)打桩工程照明Kx = 1.00,Cos = 1.00,tg = 0Pjs = KxPe = 1.00 0.60 = 0.60kWQjs = Pjstg = 0.60 0 = 0.00kVar(11)打桩
14、工程照明Kx = 1.00,Cos = 1.00,tg = 0Pjs = KxPe = 1.00 0.60 = 0.60kWQjs = Pjstg = 0.60 0 = 0.00kVar(12)打桩工程照明Kx = 1.00,Cos = 1.00,tg = 0Pjs = KxPe = 1.00 0.60 = 0.60kWQjs = Pjstg = 0.60 0 = 0.00kVar(13)打桩工程照明Kx = 1.00,Cos = 1.00,tg = 0Pjs = KxPe = 1.00 0.60 = 0.60kWQjs = Pjstg = 0.60 0 = 0.00kVar(14)打桩工程照
15、明Kx = 1.00,Cos = 1.00,tg = 0Pjs = KxPe = 1.00 0.60 = 0.60kWQjs = Pjstg = 0.60 0 = 0.00kVar(15)打桩工程照明Kx = 1.00,Cos = 1.00,tg = 0Pjs = KxPe = 1.00 0.60 = 0.60kWQjs = Pjstg = 0.60 0 = 0.00kVar(16)总的运算负荷运算,干线同期系数取 Kx = 0.90总的有功功率Pjs=1.1KxPjs=1.10.90(28.00+28.00+28.00+28.00+28.00+28.00+42.00+12.00+2.10+0
16、.60+0.60+0.60+0.60+0.60+0.60) = 225.42kW总的无功功率Qjs=1.1KxQjs=1.10.90(28.57+28.57+28.57+28.57+28.57+28.57+42.85+12.24+2.14+0.00+0.00+0.00+0.00+0.00+0.00) = 226.34kVar总的视在功率Sjs = (Pjs2+Qjs2)1/2 = (225.422+226.342)1/2 = 319.45kVA总的运算电流运算Ijs = Sjs/(1.732Ue) = 319.45/(1.7320.38) = 485.36A3#变压器的负荷运算(1)钢筋对焊机
17、Kx = 0.45,Cos = 0.40,tg = 2.29Pjs = KxPe = 0.45 20.00 = 9.00kWQjs = Pjstg = 9.00 2.29 = 20.62kVar(2)钢筋调直切断机Kx = 0.70,Cos = 0.40,tg = 2.29Pjs = KxPe = 0.70 5.50 = 3.85kWQjs = Pjstg = 3.85 2.29 = 8.82kVar(3)钢筋切断机Kx = 0.70,Cos = 0.40,tg = 2.29Pjs = KxPe = 0.70 7.00 = 4.90kWQjs = Pjstg = 4.90 2.29 = 11.
18、23kVar(4)钢筋弯曲机Kx = 0.70,Cos = 0.40,tg = 2.29Pjs = KxPe = 0.70 3.00 = 2.10kWQjs = Pjstg = 2.10 2.29 = 4.81kVar(5)交流电焊机Kx = 0.45,Cos = 0.45,tg = 1.98将Jc = 40%统一换算到Jc = 100%的额定容量Pe = n(Jc/Jc1)1/2Pn = 1(0.40/1.00)1/217.37 = 10.99kWPjs = KxPe = 0.45 10.99 = 4.94kWQjs = Pjstg = 4.94 1.98 = 9.81kVar(6)钢筋对焊
19、机Kx = 0.45,Cos = 0.40,tg = 2.29Pjs = KxPe = 0.45 20.00 = 9.00kWQjs = Pjstg = 9.00 2.29 = 20.62kVar(7)钢筋调直切断机Kx = 0.70,Cos = 0.40,tg = 2.29Pjs = KxPe = 0.70 5.50 = 3.85kWQjs = Pjstg = 3.85 2.29 = 8.82kVar(8)钢筋弯曲机Kx = 0.70,Cos = 0.40,tg = 2.29Pjs = KxPe = 0.70 3.00 = 2.10kWQjs = Pjstg = 2.10 2.29 = 4.
20、81kVar(9) 钢筋切断机Kx = 0.70,Cos = 0.40,tg = 2.29Pjs = KxPe = 0.70 7.00 = 4.90kWQjs = Pjstg = 4.90 2.29 = 11.23kVar(10)交流电焊机Kx = 0.45,Cos = 0.45,tg = 1.98将Jc = 40%统一换算到Jc = 100%的额定容量Pe = n(Jc/Jc1)1/2Pn = 1(0.40/1.00)1/217.37 = 10.99kWPjs = KxPe = 0.45 10.99 = 4.94kWQjs = Pjstg = 4.94 1.98 = 9.81kVar(11)
21、交流电焊机Kx = 0.45,Cos = 0.45,tg = 1.98将Jc = 40%统一换算到Jc = 100%的额定容量Pe = n(Jc/Jc1)1/2Pn = 1(0.40/1.00)1/217.37 = 10.99kWPjs = KxPe = 0.45 10.99 = 4.94kWQjs = Pjstg = 4.94 1.98 = 9.81kVar(12)交流电焊机Kx = 0.45,Cos = 0.45,tg = 1.98将Jc = 40%统一换算到Jc = 100%的额定容量Pe = n(Jc/Jc1)1/2Pn = 1(0.40/1.00)1/217.37 = 10.99kW
22、Pjs = KxPe = 0.45 10.99 = 4.94kWQjs = Pjstg = 4.94 1.98 = 9.81kVar(13)交流电焊机Kx = 0.45,Cos = 0.45,tg = 1.98将Jc = 40%统一换算到Jc = 100%的额定容量Pe = n(Jc/Jc1)1/2Pn = 1(0.40/1.00)1/217.37 = 10.99kWPjs = KxPe = 0.45 10.99 = 4.94kWQjs = Pjstg = 4.94 1.98 = 9.81kVar(14)交流电焊机Kx = 0.45,Cos = 0.45,tg = 1.98 将Jc = 40%
23、统一换算到Jc = 100%的额定容量Pe = n(Jc/Jc1)1/2Pn = 1(0.40/1.00)1/217.37 = 10.99kWPjs = KxPe = 0.45 10.99 = 4.94kWQjs = Pjstg = 4.94 1.98 = 9.81kVar(15)钢筋室外加工照明Kx = 1.00,Cos = 1.00,tg = 0Pjs = KxPe = 1.00 96.00 = 96.00kWQjs = Pjstg = 96.00 0 = 0.00kVar(16)职工办公、生活区组Kx = 1.00,Cos = 1.00,tg = 0Pjs = KxPe = 1.00 5
24、0.00 = 50.00kWQjs = Pjstg = 50.00 0 = 0.00kVar(17)作业队办公、生活区组Kx = 1.00,Cos = 1.00,tg = 0Pjs = KxPe = 1.00 40.00 = 40.00kWQjs = Pjstg = 40.00 0 = 0.00kVar(18)总的运算负荷运算,干线同期系数取 Kx = 0.90总的有功功率Pjs=1.1KxPjs=1.10.90(9.00+3.85+4.90+2.10+4.94+9.00+3.85+2.10+3.85+4.94+4.94+4.94+4.94+4.94+96.00+50.00+40.00) =
25、251.77kW总的无功功率Qjs=1.1KxQjs=1.10.90(20.62+8.82+11.23+4.81+9.81+20.62+8.82+4.81+8.82+9.81+9.81+9.81+9.81+9.81+0.00+0.00+0.00) = 145.95kVar总的视在功率Sjs = (Pjs2+Qjs2)1/2 = (251.772+145.952)1/2 = 291.01kVA总的运算电流运算Ijs = Sjs/(1.732Ue) = 291.01/(1.7320.38) = 442.16A7#变压器的负荷运算(1)混凝土搅拌楼Kx = 0.70,Cos = 0.70,tg =
26、1.02Pjs = KxPe = 0.70 250.00 = 175.00kWQjs = Pjstg = 175.00 1.02 = 178.54kVar(2)混凝土搅拌楼Kx = 0.70,Cos = 0.70,tg = 1.02Pjs = KxPe = 0.70 250.00 = 175.00kWQjs = Pjstg = 175.00 1.02 = 178.54kVar(3)职工办公、生活区Kx = 1.00,Cos = 1.00,tg = 0Pjs = KxPe = 1.00 50.00 = 50.00kWQjs = Pjstg = 50.00 0 = 0.00kVar(4)作业队办公
27、、生活区Kx = 1.00,Cos = 1.00,tg = 0Pjs = KxPe = 1.00 40.00 = 40.00kWQjs = Pjstg = 40.00 0 = 0.00kVar(5)总的运算负荷运算,干线同期系数取 Kx = 0.90总的有功功率Pjs = 1.1KxPjs = 1.10.90(175.00+175.00+50.00+40.00) = 435.60kW总的无功功率Qjs =1.1KxQjs = 1.10.90(178.54+178.54+0.00+0.00) = 353.50kVar总的视在功率Sjs = (Pjs2+Qjs2)1/2 = (435.602+35
28、3.502)1/2 = 560.99kVA总的运算电流运算Ijs = Sjs/(1.732Ue) = 560.99/(1.7320.38) = 852.36A五、选择变压器1#变压器按照运算的总的视在功率选择S9-400/10 型三相电力变压器,它的容量为400.00kVA319.45kVA1.20(增容系数)能够满足使用要求,其高压侧电压为10.00kV同施工现场外的高压架空线路的电压级别一致。3#变压器按照运算的总的视在功率选择S9-400/10 型三相电力变压器,它的容量为400.00kVA291.01kVA1.20(增容系数)能够满足使用要求,其高压侧电压为10.00kV同施工现场外的
29、高压架空线路的电压级别一致。7#变压器按照运算的总的视在功率选择S9-800/10 型三相电力变压器,它的容量为800kVA560.99kVA1.20(增容系数)能够满足使用要求,其高压侧电压为10.00kV同施工现场外的高压架空线路的电压级别一致。六、设计配电线路,选择导线或电缆6.1选择总箱的进线截面及进线开关1#变压器选择总箱的进线截面及进线开关(1)选择导线截面: i) 按安全载流量:上面差不多运算出总运算电流Ijs = 485.36Aii) 按承诺电压降: S = 1.1Kx(PL)/CU = 1.1 0.9010398.00/(77.005.00) = 26.74mm2iii) 按照前面两条:电缆线空气明敷,铜芯聚氯乙烯绝缘电缆线VV3240+2120 ,其安全载流量为567A,截面面积240mm2,能够满足使用要求。(2)选择总进线开关:DZ10-600
copyright@ 2008-2022 冰豆网网站版权所有
经营许可证编号:鄂ICP备2022015515号-1