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1、滨魏工业园职工高层住宅1 -3#楼，11-13#楼临时用电专项施工方案一、工程概况 （建筑之家）滨魏工业园职工高层住宅1-3#楼；11-13#楼工程，位于滨州市黄河五路以北，渤海二十四路以西。地上17层，地下均为-1层。建筑总面积为81050.54。框架剪力墙结构，桩基础，计划2010年5月20日开工，2011年11月21日竣工。二、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
2、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JGJ59-99三、现场勘测场地地形平缓，场地类型为黄河中下游冲积平原，场区内分布为汽车站老厂及局部回填堆土，场地标高最大值-0.23米，最小值-2.49米，相对高差2.26米。地下水经勘测为第四孔隙水、潜水，水位埋深平均值为1.85米，水位变化受季节影响明显，年变化幅度在2.00米左右，丰水期水位埋深为0.5米左右，地下水补给以大气降水为主，排泄方式以蒸发为主。水资源对砼结构无腐蚀性，对砼结构中钢筋无腐蚀性，对钢结构有弱腐蚀性，干湿交替时对砼结构无腐蚀性，对砼结构中钢筋有弱腐蚀性，对钢结构有弱腐蚀性。四、电源进线、配电室、总
3、配电箱，分配电箱的装设位置及线路走向施工现场电源进线由市政电网引至配电室，配电室设在施工现场东北角，施工用电源线由配电室引入至施工现场，据用电规范规定，工程采用系统，实行三级配电两级保护，施工现场东北角线路接入处设有一500KW变压器，施工现场设一个符合标准的的总配电箱，下设分配电箱3台，开关箱22台。总分配电箱、开关箱施工用电线的布置严格按照施工现场临时用电安全技术规范规定布置。根据施工现场用电设备布置情况，采用导线埋地敷设，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，两级防护。五、进行负荷计算现场用电设备（主体阶段）设备名称数 量功 率用电量蛙式打夯机21.5KW3KW
4、H插入式振动器21.1 KW2.2 KWH平板式振动器20.5KW1 KWH电焊机29KW18 KWH灰浆搅拌机13KW3 KWHQTZ40塔吊425KW100KWH电锯机13KW3KWH钢筋切断机13KW3KWH钢筋调直机14KW4KWH钢筋弯曲机13KW3KWH砼输送泵15.5KW5.5KWH潜水泵45.5KW22KWH确定用电负荷(需要系数法)Kx:用电设备组的需要系数Cos:铭牌额定功率因数Pjs : 用电设备组的有功计算负荷Qjs : 用电设备组的无功计算负荷Pe : 用电设备组的额定功率(1)、蛙式夯土机Kx = 0.5 Cos = 0.55 tg = 1.52Pjs = 0.51
5、.5 = 0.75 kWQjs = Pjs tg=0.751.52 = 1.14 kvar(2)、插入式振动器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.31.1 = 0.33 kWQjs = Pjs tg=0.331.02 = 0.34 kvar(3)、平板式振动器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.30.5 = 0.15 kWQjs = Pjs tg=0.151.02 = 0.15 kvar(4)、交流电焊机Kx = 0.5 Cos = 0.4 tg = 2.29将Jc =50%统一换算到Jc1 =100%的额定容量Pn =
6、Sn Cos = 90.4=3.6kWPe = n(Jc/Jc1)1/2Pn = 1(0.5/1)1/23.6 = 2.55 kWPjs = KxPe =0.52.55 = 1.27kWQjs = Pjs tg=1.272.29 = 2.92 kvar(5)、真空吸水泵Kx = 0.75 Cos = 0.8 tg = 0.75Pjs = 0.755.5 = 4.125 kWQjs = Pjs tg=4.120.75 = 3.09 kvar(6)、灰浆搅拌机Kx = 0.5 Cos = 0.55 tg = 1.52Pjs = 0.53 = 1.5 kWQjs = Pjs tg=1.51.52 =
7、 2.28 kvar(7)、木工圆锯Kx = 0.65 Cos = 0.6 tg = 1.33Pjs = 0.653 = 1.95 kWQjs = Pjs tg=1.951.33 = 2.6 kvar(8)、灰气联合泵Kx = 0.75 Cos = 0.8 tg = 0.75Pjs = 0.755.5 = 4.125 kWQjs = Pjs tg=4.120.75 = 3.09 kvar(9)、塔式起重机Kx = 0.85 Cos = 0.6 tg = 1.33将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 25kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25
8、)1/225 = 31.62 kWPjs = KxPe =0.8531.62 = 26.88kWQjs = Pjs tg=26.881.33 = 35.84 kvar(10)、塔式起重机Kx = 0.85 Cos = 0.6 tg = 1.33将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 25kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/225 = 31.62 kWPjs = KxPe =0.8531.62 = 26.88kWQjs = Pjs tg=26.881.33 = 35.84 kvar(11)、钢筋调直机Kx = 0.65 Cos = 0.
9、7 tg = 1.02Pjs = 0.654 = 2.6 kWQjs = Pjs tg=2.61.02 = 2.65 kvar(12)、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(13)、插入式振动器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.31.1 = 0.33 kWQjs = Pjs tg=0.331.02 = 0.34 kvar(14)、交流电焊机Kx = 0.5 Cos = 0.4 tg = 2.29将Jc =50%统一换
10、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 =0.52.55 = 1.27kWQjs = Pjs tg=1.272.29 = 2.92 kvar(15)、真空吸水泵Kx = 0.75 Cos = 0.8 tg = 0.75Pjs = 0.755.5 = 4.125 kWQjs = Pjs tg=4.120.75 = 3.09 kvar (16)、平板式振动器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.30.5 = 0.
11、15 kWQjs = Pjs tg=0.151.02 = 0.15 kvar(17)、塔式起重机Kx = 0.85 Cos = 0.6 tg = 1.33将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 25kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/225 = 31.62 kWPjs = KxPe =0.8531.62 = 26.88kWQjs = Pjs tg=26.881.33 = 35.84 kvar(18)、塔式起重机Kx = 0.85 Cos = 0.6 tg = 1.33将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 25k
12、WPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/225 = 31.62 kWPjs = KxPe =0.8531.62 = 26.88kWQjs = Pjs tg=26.881.33 = 35.84 kvar(19)、白炽灯Kx = 1 Cos = 1 tg = 0Pjs = 10.11 = 0.1 kWQjs = Pjs tg=0.10 = 0 kvar(20)、白炽灯Kx = 1 Cos = 1 tg = 0Pjs = 10.11 = 0.1 kWQjs = Pjs tg=0.10 = 0 kvar(21)、白炽灯Kx = 1 Cos = 1 tg = 0Pjs =
13、 10.11 = 0.1 kWQjs = Pjs tg=0.10 = 0 kvar(22)、白炽灯Kx = 1 Cos = 1 tg = 0Pjs = 10.11 = 0.1 kWQjs = Pjs tg=0.10 = 0 kvar(23)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(0.75+0.33+0.15+1.27+4.12+1.5+1.95+4.12+26.88+26.88+2.6+0.75+0.33+1.27+3+0.15+26.88+26.88+0.1+0.1+0.1+0.1) = 117.202 kW总的无功功率Qjs = K
14、xQjs =0.9(1.14+0.34+0.15+2.92+3.09+2.28+2.6+3.09+35.84+35.84+2.65+1.14+0.34+2.92+2.25+0.15+35.84+35.84+0+0+0+0) = 151.573 kvar总的视在功率Sjs = ( Pjs2+Qjs2 )1/2 = (117.2022+151.5732)1/2 = 191.6 kVA总的计算电流计算Ijs = Sjs/(1.732Ue) = 191.6/(1.7320.38) = 291.114 A六、选择变压器根据计算的总的视在功率与最大干线功率（以单个开关箱的最大功率逐级计算选择）取大值选择SL7-400/10型三相电力变压器，它的容量为400kVA191.6kVA能够满足使用要求，其高压侧电压为10kV同施工现场外的高压架空线路的电压级别一致。七、设计配电系统干线1线路计算在选择前应对
