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1、施工临时用电方案计算书甘谷颐年嘉园工程；属于框架结构;地上18层;地下1层；建筑高度：54.00m；标准层层高：2.90m ；总建筑面积：18000.00平方米；总工期：0天；施工单位：。本工程由投资建设，设计，地质勘察，监理，组织施工；由担任项目经理，担任技术负责人。一、编制依据低压配电设计规范GB50054-95中国建筑工业出版社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
2、查标准JGJ59-99二、施工条件施工现场用电量统计表:-序号 机具名称 型号 安装功率(kW) 数量 合计功率(kW)1 钢筋调直机 GT4/14 4 1 4 2 钢筋切断机 QJ40-1 5.5 1 5.5 3 钢筋切断机 QJ40-1 5.5 1 5.5 4 钢筋弯曲机 GW40 3 1 3 5 交流电焊机 76 1 76 6 交流电焊机 BX3-120-1 9 1 9 7 照明 10 1 10 8 振动夯土机 HZD250 4 1 4 9 蛙式夯土机 HW-32 1.5 1 1.5 10 塔式起重机 TQ60/80 55.5 1 55.5 11 JW500 30 1 30 12 JW5
3、00 30 1 30 13 插入式振动器 ZX70 1.5 1 1.5 14 平板式振动器 ZB11 1.1 1 1.1 15 交流电焊机 76 1 76 16 照明 2 1 2 17 混凝土输送泵 HB-15 90 1 90 18 木工圆锯 MJ106 5.5 1 5.5 19 照明 10 1 10 -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，采用导线穿钢管埋地敷设，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，
4、两级防护。(4)按照JGJ46-2005规定制定施工组织设计，接地电阻R4。2、确定用电负荷:(1)、钢筋调直机Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.34 = 1.2 kWQjs = Pjs tg=1.21.02 = 1.22 kvar(2)、钢筋切断机Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.35.5 = 1.65 kWQjs = Pjs tg=1.651.02 = 1.68 kvar(3)、钢筋切断机Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.35.5 = 1.65 kWQjs = Pjs tg=1
5、.651.02 = 1.68 kvar(4)、钢筋弯曲机Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.33 = 0.9 kWQjs = Pjs tg=0.91.02 = 0.92 kvar(5)、交流电焊机Kx = 0.35 Cos = 0.4 tg = 2.29将Jc =50%统一换算到Jc1 =100%的额定容量Pn = Sn Cos = 760.4=30.4kWPe = n(Jc/Jc1)1/2Pn = 1(0.5/1)1/230.4 = 21.5 kWPjs = KxPe =0.3521.5 = 7.52kWQjs = Pjs tg=7.522.29 = 17
6、.24 kvar(6)、交流电焊机Kx = 0.35 Cos = 0.4 tg = 2.29将Jc =50%统一换算到Jc1 =100%的额定容量Pn = Sn Cos = 90.4=3.6kWPe = n(Jc/Jc1)1/2Pn = 1(0.5/1)1/23.6 = 2.55 kWPjs = KxPe =0.352.55 = 0.89kWQjs = Pjs tg=0.892.29 = 2.04 kvar(7)、照明Kx = 0.3 Cos = 0.6 tg = 1.33Pjs = 0.310 = 3 kWQjs = Pjs tg=31.33 = 4 kvar(8)、振动夯土机Kx = 0.
7、5 Cos = 0.6 tg = 1.33Pjs = 0.54 = 2 kWQjs = Pjs tg=21.33 = 2.67 kvar(9)、蛙式夯土机Kx = 0.5 Cos = 0.55 tg = 1.52Pjs = 0.51.5 = 0.75 kWQjs = Pjs tg=0.751.52 = 1.14 kvar(10)、塔式起重机Kx = 0.2 Cos = 0.6 tg = 1.33将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 55.5kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/255.5 = 70.2 kWPjs = KxPe =0.
8、270.2 = 14.04kWQjs = Pjs tg=14.041.33 = 18.72 kvar(11)、强制式混凝土搅拌机Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.7530 = 22.5 kWQjs = Pjs tg=22.50.62 = 13.94 kvar(12)、强制式混凝土搅拌机Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.7530 = 22.5 kWQjs = Pjs tg=22.50.62 = 13.94 kvar(13)、插入式振动器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.31.
9、5 = 0.45 kWQjs = Pjs tg=0.451.02 = 0.46 kvar(14)、平板式振动器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.31.1 = 0.33 kWQjs = Pjs tg=0.331.02 = 0.34 kvar(15)、交流电焊机Kx = 0.35 Cos = 0.4 tg = 2.29将Jc =50%统一换算到Jc1 =100%的额定容量Pn = Sn Cos = 760.4=30.4kWPe = n(Jc/Jc1)1/2Pn = 1(0.5/1)1/230.4 = 21.5 kWPjs = KxPe =0.3521.5 =
10、7.52kWQjs = Pjs tg=7.522.29 = 17.24 kvar(16)、照明Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.32 = 0.6 kWQjs = Pjs tg=0.61.02 = 0.61 kvar(17)、混凝土输送泵Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.390 = 27 kWQjs = Pjs tg=271.02 = 27.55 kvar(18)、木工圆锯Kx = 0.3 Cos = 0.6 tg = 1.33Pjs = 0.35.5 = 1.65 kWQjs = Pjs tg=1.651.33 = 2
11、.2 kvar(19)、照明Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.310 = 3 kWQjs = Pjs tg=31.02 = 3.06 kvar(20)总的计算负荷计算，总箱同期系数取 Kx = 0.9总的有功功率Pjs = KxPjs = 0.9(1.2+1.65+1.65+0.9+7.52+0.89+3+2+0.75+14.04+22.5+22.5+0.45+0.33+7.52+0.6+27+1.65+3) = 107.243 kW总的无功功率Qjs = KxQjs =0.9(1.22+1.68+1.68+0.92+17.24+2.04+4+2.67+1.14+18.72+13.94+13.94+0.46+0.34+17.24+0.61+27.55+2.2+3.06) = 117.591 kvar总的视在功率Sjs = ( Pjs2+Qjs2 )1/2 = (107.2432+117.5912)1/2 = 159.15 kVA总的计算电流计算Ijs = Sjs/(1.732Ue) = 159.15/(1.7320.38) = 241.811 A3、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
