xx工程施工临时用电方案计算书.docx

1、xx工程施工临时用电方案计算书Xx工程临时用电施工工程专项安全施工方案编制人： 职务(称) 审核人： 职务(称) 批准人： 职务(称) 批准部门(章) 编制日期： 施工临时用电方案计算书本工程为XX工程。位于地块，框剪结构，建筑面积75576平方米。地下1层，地上18-20层。建筑层数：、7#、11#楼20层，8#、9#楼20层（底层架空），12#14#楼18层，10#楼20层（一二层为商业配套）安置商业用房2层。建筑高度：7#、11#楼58.4m，8#、9#、10#楼60.0m，12#14#楼52.6m，安置商业用房7.8m。一、编制依据低压配电设计规范GB50054-95中国建筑工业出版社

2、建筑工程施工现场供电安全规范GB50194-93中国建筑工业出版社通用用电设备配电设计规范GB50055-93中国建筑工业出版社供配电系统设计规范GB50052-95中国建筑工业出版社施工现场临时用电安全技术规范JGJ46-2005中国建筑工业出版社建筑施工安全检查标准JGJ59-99二、施工条件（一） 、施工现场用电量统计表：用电量统计表序号设备名称规格型号安装功率(KW)数量合计功率KW1#配电柜数量1#配电柜合计功率2#配电柜数量2#配电柜合计功率1塔式起重机QTZ-634831441482962施工电梯SC200/2004483522886265竖向对焊机4541802902904电焊

3、机BXZ-300124483361125碰焊机UN-7575215021506钢筋切断机GJ-505.52112117钢筋弯曲机WJ-50326268钢筋调直卷扬机111111119圆盘锯MJ109483241641610压 刨7.517.517.511手电锯248242412砼搅拌机7.543017.5322.513灰浆搅拌机2.2817.624.4613.214平板器3.126.213.113.115振动电机WZX-601.188.844.444.416套丝切管机1.022111117液压弯管机1.122.211.111.118高压泵2024024019泥浆泵2224422222220潜水

4、泵1.188.844.444.421照 明现场3030151522照 明办公30303023照 明生活60606024食堂303030三、设计内容和步骤1、现场勘探及初步设计:(1)本工程所在施工现场范围内施工前无各种埋地管线。(2)现场采用380V低压供电，设一配电总箱，内有计量设备，采用TN-S系统供电。(3)根据施工现场用电设备布置情况，总箱进线采用导线空气明敷/架空线路敷设，干线采用穿塑料管敷设，用电器导线采用穿硬塑料管敷设。布置位置及线路走向参见临时配电系统图及现场平面图，采用三级配电，三级防护。(4)按照JGJ46-2005规定制定施工组织设计，接地电阻R4。2、总配电设计 本工程

5、现场由建设单位提供两个400KN的电源，能满足工程总的施工用电。在工地西北角设置一总配电房，内设两个配电柜，每个配电柜设4个回路，另工人生活区用电由于是在工程围墙以外，故照明用电由变压器直接接至生活区的用电箱。3、用电干线路布置图（1）、1#干线路主要用电设备有：电焊机、钢筋弯曲机、钢筋切断机、对焊机。(2)、2#干线主要用电设备有：塔吊、施工电梯、施工电梯、按幢号配二级分箱。4#、5#干线用电设备与2#干线相同，以下只介绍2#干线。（3）、3#干线主要用电设备有：施工电梯、施工电梯、12#楼用电分箱、13#楼用电分箱。（4）、6#干线主要为办公室用电。（5）、7#干线主要为员工生活区用电。（

6、6）13#干线由1#配电柜接出，46#干线由2#配电柜接出注：按幢号用电分箱用电设备分为：砼搅拌机、砂浆搅拌机、楼层分箱。4、确定用电负荷:（一） 1#配电柜的用电负荷计算，总箱同期系数取Kx=0.91、塔式起重机(1台)Kx = 0.30 Cos = 0.60 tg = 1.33将Jc =40%统一换算到Jc1 =30%的额定容量Pe = n(Jc/Jc1)1/2Pn =1(0.40/0.30)1/248.00 =55.43kW Pjs1 = KxPe =0.3055.43 = 16.63kWQjs1Pjs1tg19.061.3322.11kw 2、施工电梯(2台)Kx = 0.30 Cos

7、 = 0.60 tg = 1.33Pjs2 = 0.3044.00 = 13.2 kWQjs2Pjs2tg13.21.3317.56kw3、竖向对焊机(2台)Kx = 0.35 Cos = 0.50 tg = 1.73将Jc =50%统一换算到Jc1 =100%的额定容量Pe = n(Jc/Jc1)1/2Pn =1(0.50/1.00)1/245.00 = 31.82 kWPjs8 = KxPe =0.3531.82 = 11.14kWQjs8Pjs8tg11.141.7319.27kw4、电焊机(3台)Kx = 0.35 Cos = 0.50 tg = 1.73将Jc =50%统一换算到Jc

8、1 =100%的额定容量Pe = n(Jc/Jc1)1/2Pn =1(0.50/1.00)1/212.00 = 8.49 kWPjs7 = KxPe =0.358.49 =2.97kWQjs7Pjs7tg2.971.735.14kw5、对焊机(2台)Kx = 0.35 Cos = 0.70 tg = 1.02将Jc =50%统一换算到Jc1 =100%的额定容量Pe = n(Jc/Jc1)1/2Pn =1(0.50/1.00)1/275.00 = 53.03 kWPjs4= KxPe =0.3553.03 = 18.56kWQjs4Pjs4tg18.561.0218.93kw6、钢筋切断机(2

9、台)Kx = 0.30 Cos = 0.70 tg = 1.02Pjs5 = 0.305.50 = 1.65 kWQjs5Pjs5tg1.651.021.68kw7、钢筋弯曲机(2台)Kx = 0.30 Cos = 0.60 tg = 1.02Pjs6 = 0.303.00 = 0.90 kWQjs6Pjs6tg0.901.020.92kw8、钢筋调直机(1台)Kx = 0.30 Cos = 0.70 tg = 1.02Pjs7 = 0.3011= 3.3 kWQjs7Pjs7tg3.31.023.37k9、圆盘锯(4台)Kx = 0.30 Cos = 0.60 tg = 1.33Pjs6 =

10、 0.303.00 = 0.90 kWQjs6Pjs6tg0.901.331.197kw10、压创(1台)Kx = 0.3 Cos = 0.60 tg = 1.33Pjs12 =0.37.5 = 2.25kWQjs12Pjs12tg2.251.333KW11、手电锯(2台)Kx = 0.7 Cos = 0.70 tg = 0.88Pjs19 =0.72 = 1.4kWQjs19Pjs19tg1.40.881.24KW12、砼搅拌机(1台)Kx = 0.70 Cos = 0.70 tg = 1.08Pjs10 = 0.707.5 = 5.25 kWQjs10Pjs10tg1.085.255.67

11、kw13、灰浆搅拌机(2台)Kx = 0.7 Cos = 0.7 tg = 1.08Pjs11 =0.72.2 = 1.54 kWQjs11Pjs11tg1.541.081.663KW14、平板器(1台)Kx = 0.7 Cos = 0.70 tg = 1.08Pjs14 =0.73.1 =2.17kWQjs14Pjs14tg2.171.082.35KW15、振动电机(4台)Kx = 0.70 Cos = 0.70 tg = 1.02Pjs5 = 0.701.10 = 0.77 kWQjs5Pjs5tg0.771.020.785kw16、套丝切管机(1台)Kx = 0.30 Cos = 0.6

12、0 tg = 1.33Pjs9 = 0.301.00 = 0.30 kWQjs9Pjs9tg0.31.330.4kw17、电动液压弯管机(1台)Kx = 0.30 Cos = 0.60 tg = 1.33Pjs10 = 0.301.10 = 0.33 kWQjs10Pjs10tg0.331.330.44kw18、高压泵(2台)Kx = 0.75 Cos = 0.80 tg = 0.75Pjs14 =0.7520 =15kWQjs14Pjs14tg150.7511.25KW19、泥浆泵(2台)Kx = 0.3 Cos = 0.7 tg =1.98Pjs15 = KxPe =0.322 = 6.6

13、kWQjs15Pjs15tg6.61.9813.07KW20、潜水泵(4台)Kx = 0.35 Cos = 0.7 tg =1.08Pjs16 = KxPe =0.351.1 = 0.385kWQjs16Pjs16tg0.3851.080.415KW21、现场照明Kx = 1.00 Cos = 1.00 tg = 0.00将Jc =50%统一换算到Jc1 =40%的额定容量Pe = n(Jc/Jc1)1/2Pn =1(0.50/0.40)1/230.00 = 33.54 kWPjs3 = KxPe =1.0033.54 = 33.54kWQjs3Pjs3tg33.5400kw22、办公照明Kx

14、 = 0.80 Cos = 1.00 tg = 0.00将Jc =50%统一换算到Jc1 =40%的额定容量Pe = n(Jc/Jc1)1/2Pn =1(0.50/0.40)1/230.00 = 33.54 kWPjs4 = KxPe =0.8033.54 = 26.83kWQjs4Pjs4tg26.8300kw23、生活区照明Kx = 0.7 Cos = 1 tg = 0Pjs11 =0.760.00 = 42.00 kWQjs11Pjs11tg4200KW24、食堂用电Kx = 0.80 Cos = 1.00 tg = 0.00将Jc =50%统一换算到Jc1 =40%的额定容量Pe =

15、n(Jc/Jc1)1/2Pn =1(0.50/0.40)1/230.00 = 33.54 kWPjs4 = KxPe =0.8033.54 = 26.83kWQjs4Pjs4tg26.8300kwKx、tg用电需用系数 Jc用电设备负荷暂载率Pe额定功率/容量 Pjs有功功率Qjs无功功率 Sjs视在功率cos为电动机的平均功率因数总的有功功率Pjs=KxPjs =0.90(16.63+13.22+11.142+2.973+18.562+1.652+0.92+0.94+2.25+1.42+5.25+1.542+2.17+0.774+0.3+0.33+152+6.62+0.3854+33.54+

16、26.83+42+26.83) =313.240.90=281.916kVA总的无功功率Qjs = KxQjs=0.90(22.11+17.562+19.272+5.143+18.932+1.682+0.922+1.1974+3+1.242+5.67+1.6632+2.35+0.7854+0.4+0.44+11.252+13.072+0.4154)= 230.1440.90=207.13kVA总的视在功率Sjs = (Pjs2+Qjs2)1/2 = (281.922+207.132)1/2 = 349.83kVA总的电流计算Ijs = Sjs/(1.732Ue) = 349.83/(1.732

17、0.380.70) = 759.33 A（二） 2#配电柜的用电负荷计算，总箱同期系数取Kx=0.91、塔式起重机(2台)Kx = 0.30 Cos = 0.60 tg = 1.33将Jc =40%统一换算到Jc1 =30%的额定容量Pe = n(Jc/Jc1)1/2Pn =1(0.40/0.30)1/248.00 =55.43kW Pjs1 = KxPe =0.3055.43 = 16.63kWQjs1Pjs1tg19.061.3322.11kw 2、施工电梯(6台)Kx = 0.30 Cos = 0.60 tg = 1.33Pjs2 = 0.3044.00 = 13.2 kWQjs2Pjs

18、2tg13.21.3317.56kw3、竖向对焊机(2台)Kx = 0.35 Cos = 0.50 tg = 1.73将Jc =50%统一换算到Jc1 =100%的额定容量Pe = n(Jc/Jc1)1/2Pn =1(0.50/1.00)1/245.00 = 31.82 kWPjs8 = KxPe =0.3531.82 = 11.14kWQjs8Pjs8tg11.141.7319.27kw4、电焊机(1台)Kx = 0.35 Cos = 0.50 tg = 1.73将Jc =50%统一换算到Jc1 =100%的额定容量Pe = n(Jc/Jc1)1/2Pn =1(0.50/1.00)1/212

19、.00 = 8.49 kWPjs7 = KxPe =0.358.49 =2.97kWQjs7Pjs7tg2.971.735.14kw5、钢筋切断机(2台)Kx = 0.30 Cos = 0.70 tg = 1.02Pjs5 = 0.305.50 = 1.65 kWQjs5Pjs5tg1.651.021.68kw6、钢筋调直机(1台)Kx = 0.30 Cos = 0.70 tg = 1.02Pjs7 = 0.3011= 3.3 kWQjs7Pjs7tg3.31.023.37k7、圆盘锯(4台)Kx = 0.30 Cos = 0.60 tg = 1.33Pjs6 = 0.303.00 = 0.9

20、0 kWQjs6Pjs6tg0.901.331.197kw8、手电锯(2台)Kx = 0.7 Cos = 0.70 tg = 0.88Pjs19 =0.72 = 1.4kWQjs19Pjs19tg1.40.881.24KW9、砼搅拌机(3台)Kx = 0.70 Cos = 0.70 tg = 1.08Pjs10 = 0.707.5 = 5.25 kWQjs10Pjs10tg1.085.255.67kw10、灰浆搅拌机(6台)Kx = 0.7 Cos = 0.7 tg = 1.08Pjs11 =0.72.2 = 1.54 kWQjs11Pjs11tg1.541.081.663KW11、平板器(1

21、台)Kx = 0.7 Cos = 0.70 tg = 1.08Pjs14 =0.73.1 =2.17kWQjs14Pjs14tg2.171.082.35KW12、振动电机(4台)Kx = 0.70 Cos = 0.70 tg = 1.02Pjs5 = 0.701.10 = 0.77 kWQjs5Pjs5tg0.771.020.785kw13、套丝切管机(1台)Kx = 0.30 Cos = 0.60 tg = 1.33Pjs9 = 0.301.00 = 0.30 kWQjs9Pjs9tg0.31.330.4kw14、电动液压弯管机(1台)Kx = 0.30 Cos = 0.60 tg = 1.

22、33Pjs10 = 0.301.10 = 0.33 kWQjs10Pjs10tg0.331.330.44kw15、泥浆泵(2台)Kx = 0.3 Cos = 0.7 tg =1.98Pjs15 = KxPe =0.322 = 6.6kWQjs15Pjs15tg6.61.9813.07KW20、潜水泵(4台)Kx = 0.35 Cos = 0.7 tg =1.08Pjs16 = KxPe =0.351.1 = 0.385kWQjs16Pjs16tg0.3851.080.415KWKx、tg用电需用系数 Jc用电设备负荷暂载率Pe额定功率/容量 Pjs有功功率Qjs无功功率 Sjs视在功率cos为

23、电动机的平均功率因数总的有功功率Pjs=KxPjs =0.90(16.632+13.26+11.142+2.97+3.3+0.94+1.42+5.253+1.546+2.17+0.774+0.3+0.33+6.62+0.3854) =193.020.90=173.72kVA总的无功功率Qjs = KxQjs=0.90(22.112+17.566+19.272+5.14+3.37+1.1974+1.242+5.673+1.6636+2.35+0.7854+0.4+0.44+13.072+0.4154)= 265.0160.90=238.52kVA总的视在功率Sjs = (Pjs2+Qjs2)1/

24、2 = (173.722+238.522)1/2 =295.08kVA总的电流计算Ijs = Sjs/(1.732Ue) = 295.08/(1.7320.380.70) = 640.48 A5、1号干线线路上导线截面及分配箱、开关箱内电气设备选择:在选择前应对照平面图和系统图先由用电设备至开关箱计算，再由开关箱至分配箱计算，选择导线及开关设备。分配箱至开关箱，开关箱至用电设备的导线敷设采用铝橡皮绝缘导线穿硬塑料管。(1)、钢筋弯曲机配电箱至钢筋弯曲机导线截面及开关箱内电气设备选择(开关箱以下用电器启动后需要系数取1):i)计算电流Kx=1，Cos=0.7，tg=1.02Ijs=Kx Pe/(

25、1.732UeCos)=13/(1.7320.380.7)=6.51Aii)选择导线选择YC-36+22.5，穿硬塑料管时其安全载流量为50A。iii)选择电气设备选择开关箱内隔离开关为HR6，熔断器HR6-100其最大熔体电流为IRD=100A，可根据实际电流的2.5倍选择额定电流较小的熔丝，漏电保护器为GD10L-100A。(2)、电焊机配电箱至电焊机导线截面及开关箱内电气设备选择(开关箱以下用电器启动后需要系数取1):i)计算电流Kx=1，Cos=0.4，tg=2.29Ijs=KxPe/(1.732UeCos)=12.97/(1.7320.380.4)=11.3Aii)选择导线选择YC-

26、36+22.5，穿硬塑料管时其安全载流量为50A。iii)选择电气设备选择开关箱内隔离开关为HR6，熔断器HR6-100其最大熔体电流为IRD=100A，可根据实际电流的2.5倍选择额定电流较小的熔丝，漏电保护器为GD10L-100A。 (3)、碰焊机配电箱至碰焊机导线截面及开关箱内电气设备选择(开关箱以下用电器启动后需要系数取1):i)计算电流Kx=1，Cos=0.4，tg=2.29Ijs=KxPe/(1.732UeCos)=118.56/(1.7320.380.4)=70.50Aii)选择导线选择VLV-3*35+1*16，穿硬塑料管时其安全载流量为130A。iii)选择电气设备选择开关箱

27、内隔离开关为HR6 ，其脱扣器整定电流值为Ir=200A，熔断器HR6-200A其最大熔体电流为IRD=200A，可根据实际电流的2.5倍选择额定电流较小的熔丝，漏电保护器为GD10L-200A。(4)、切断机配电箱至切断机导线截面及开关箱内电气设备选择(开关箱以下用电器启动后需要系数取1):i)计算电流Kx=1，Cos=0.4，tg=2.29Ijs=KxPe/(1.732UeCos)=11.65/(1.7320.380.4)=6.27Aii)选择导线选择YC-36+22.5，穿硬塑料管时其安全载流量为50A。iii)选择电气设备选择开关箱内隔离开关为HR6，熔断器HR6-100其最大熔体电流为IRD=100A，可根据实际电流的2.5倍选择额定电流较小的熔丝，漏电保护器为GD10L-100A。(5)、配电柜至1号动力分箱 (混钢筋切断机、电焊机、钢筋弯曲机、对焊机)的开关箱的导线截面及分配箱内开关的选择i)计算电流钢筋切断机Kx=0.65，Cos=0.7，tg=1.02Ijs= Kx Pe 台数/(1.732UeCos)=0.655.51/(1.7320.380.7)=7.76A电焊机