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1、施工临时用电方案计算书一、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 生活用电 40 1 402 办公用电 40 1 403 施工照明1 10 1 104 施工照明2 10 1 105 施工照明
2、3 10 1 106 施工照明4 10 1 107 施工照明5 10 1 108 塔式起重机 QTZ63 38.5 2 779 钢筋调直机 GT4/14 4 1 410 钢筋切断机 QJ40-1 5.5 2 1111 钢筋弯曲机 GW40 3 2 612 交流电焊机 BX3-500-(BC-1000)76 1 7613 木工圆锯 MJ114 3 2 614 施工外用电梯 SCD200 44 2 8815 施工外用电梯 SCD200 44 2 8816 自落式混凝土搅拌机 JD250 11 2 2217 插入式振动器 ZX50C 1.1 10 1118 交流电焊机 BX3-200-2 23.4
3、2 46.819 灰浆泵 UB3 4 5 2020 振动夯土机 HZD250 4 2 821 木工电刨 MIB2-80/1 0.7 5 3.5 -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，总箱进线采用导线直接埋地敷设，干线采用直接埋地敷设，用电器导线采用直接埋地敷设。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，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、确定用电负荷（照明
4、用电功率损耗系数为1.1）:(1)、生活用电Kx = 0.55 Cos = 0.70 tg = 1.02Pjs = 0.55401.1= 24.20 kWQjs = Pjstg=24.201.02 = 24.69 kvar(2)、办公用电Kx = 0.55 Cos = 0.80 tg = 0.75Pjs = 0.55401.1= 24.20 kWQjs = Pjstg=24.200.75 = 18.15 kvar(3)、施工照明1Kx = 0.6 Cos = 0.70 tg = 1.02Pjs = 0.6101.1 = 6.60 kWQjs = Pjstg=6.601.02 = 6.73 kv
5、ar(4)、施工照明2Kx = 0.6 Cos = 0.70 tg = 1.02Pjs = 0.6101.1 = 6.60 kWQjs = Pjstg=6.601.02 = 6.73 kvar(5)、施工照明3Kx = 0.6 Cos = 0.70 tg = 1.02Pjs = 0.6101.1 = 6.60 kWQjs = Pjstg=6.601.02 = 6.73 kvar(6)、施工照明4Kx = 0.6 Cos = 0.70 tg = 1.02Pjs = 0.6101.1 = 6.60 kWQjs = Pjstg=6.601.02 = 6.73 kvar(7)、施工照明5Kx = 0.
6、6 Cos = 0.70 tg = 1.02Pjs = 0.6101.1 = 6.60 kWQjs = Pjstg=6.601.02 = 6.73 kvar(8)、塔式起重机Kx = 0.85 Cos = 0.60 tg =1.33将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 38.5kWPe = n(Jc/Jc1)1/2Pn = 2(0.4/0.25)1/238.5 = 97.40 kWPjs = KxPe =0.8597.40 = 82.79kWQjs = Pjstg=82.791.33 = 110.38 kvar(9)、钢筋调直机Kx = 0.65 Cos = 0.70
7、tg = 1.02Pjs = 0.654 = 2.60 kWQjs = Pjstg=2.601.02 = 2.65 kvar(10)、钢筋切断机Kx = 0.65 Cos = 0.70 tg = 1.02Pjs = 0.655.52 = 7.15 kWQjs = Pjstg=7.151.02 = 7.29 kvar(11)、钢筋弯曲机Kx = 0.65 Cos = 0.70 tg = 1.02Pjs = 0.6532 = 3.90 kWQjs = Pjstg=3.901.02 = 3.98 kvar(12)、交流电焊机Kx = 0.5 Cos = 0.40 tg =2.29将Jc =50%统一
8、换算到Jc1 =100%的额定容量Pn = 76kWPe = n(Jc/Jc1)1/2Pn = 2(0.5/1)1/276 = 53.74 kWPjs = KxPe =0.553.74 = 26.87kWQjs = Pjstg=26.872.29 = 61.57 kvar(13)、木工圆锯Kx = 0.65 Cos = 0.60 tg = 1.33Pjs = 0.6532 = 3.90 kWQjs = Pjstg=3.901.33 = 5.20 kvar(14)、施工外用电梯Kx = 0.85 Cos = 0.60 tg = 1.33Pjs = 0.85442= 74.80 kWQjs = P
9、jstg=74.801.33 = 99.73 kvar(15)、施工外用电梯Kx = 0.85 Cos = 0.60 tg = 1.33Pjs = 0.85442 = 74.80 kWQjs = Pjstg=74.801.33 = 99.73 kvar(16)、自落式混凝土搅拌机Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.75112 = 16.50 kWQjs = Pjstg=16.500.62 = 10.23 kvar(17)、插入式振动器Kx = 0.3 Cos = 0.70 tg = 1.02Pjs = 0.31.110 = 3.30 kWQjs = Pj
10、stg=3.301.02 = 3.37 kvar(18)、交流电焊机Kx = 0.5 Cos = 0.40 tg =2.29将Jc =50%统一换算到Jc1 =100%的额定容量Pn = 23.4kWPe = n(Jc/Jc1)1/2Pn = 2(0.5/1)1/223.4 = 33.09 kWPjs = KxPe =0.533.09 = 16.55kWQjs = Pjstg=16.552.29 = 37.91 kvar(19)、灰浆泵Kx = 0.75 Cos = 0.80 tg = 0.75Pjs = 0.7545 = 15.00 kWQjs = Pjstg=15.000.75 = 11.
11、25 kvar(20)、振动夯土机Kx = 0.5 Cos = 0.60 tg = 1.33Pjs = 0.542 = 4.00 kWQjs = Pjstg=4.001.33 = 5.33 kvar(21)、木工电刨Kx = 0.65 Cos = 0.60 tg = 1.33Pjs = 0.650.75 = 2.28 kWQjs = Pjstg=2.281.33 = 3.03 kvar(22)总的计算负荷计算，总箱同期系数取 Kx = 0.56总的有功功率Pjs = KxPjs = 0.56(24.20+24.20+6.60+6.60+6.60+6.60+6.60+82.79+2.60+7.15+3.90+26.87+3.90+74.80+74.80+16.50+3.30+16.55+15.00+4.00+2.28) = 232.86 kW总的无功功率Qjs = KxQjs =0.56(24.69+18.15+6.73+6.73+6.73+6.73+6.73+110.38+2.65+7.29+3.98+61.57+5.20+99.73+99.73+10.23+3.37+37.91+11.25+5.33+3.03) = 301.38 kvar总的视在功率Sjs = (Pjs2+Qjs2)1/2 = (232
