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1、施工临时用电设计方案1编制依据施工现场临时用电安全技术规范（JGJ46-2005）；建设工程施工现场供用电安全规范（GB50194-2002）；2施工现场临时用电设计本工程电源由我方自行报建，供电局安装三台500KVA厢式变压器，于场区南侧、西北角、东北角各设置1台500KVA厢式变压器。本工程配电系统设置室内配电柜和室外分配电箱，实行分级配电，重要部位如：塔吊、砼泵、木工加工场、钢筋加工场、办公区、生活区均设置专用二级配电箱，各楼座按照单元设置二级箱，装修期间各单元每隔二层（视面积及施工作业任务和难度而定）设置施工二级配电箱。施工时各二级配电箱及分总箱的位置可根据临时设施的布置情况进行调整。
2、电缆敷设主要采用埋地暗敷设，埋地深度不小于0.7m，除电缆上下各铺设50mm厚细砂外，电缆上部需加铺成品电缆砖，以对电缆进行保护。并在敷设电缆位置设置明显的标志桩，以防止土方作业时误挖被破坏，造成事故。本工程各级配电箱位置及电缆敷设走向详见本方案附图：施工现场临电平面布置示意图。3负荷计算1）施工现场用电量统计表广华新城居住区623地块职工住宅建设项目工程序号机械或设备名称规格型号数量额定功率（KW）合计额定功率（KW）用于施工部位备注1塔 吊QTZ6015675450基础、主体2外用电梯SCD200/200940360砌筑、装修工程3物料提升机2吨21020主体、装修4砼拖式泵HBT6087
3、0560基础、主体5钢筋切断机GJ4-1487.560基础、主体6钢筋调直机MJ105-187.560基础、主体7钢筋弯曲机WJ-408864基础、主体8砼振捣器HZ6X-50601.166基础、主体9交流电焊机AX4-3002010200全过程10木工圆锯MJ1058324基础、主体11木工刨床MB105B87.560基础、主体12木工压刨床MB503B47.530基础、主体13直螺纹设备GYZL-40163.556基础、主体14空气压缩机0.8m312336基础、主体15电 锤838200.5511全过程16消防水泵2612全过程17手 钻JIZ-19200.255全过程18无齿锯371K
4、82.217.6全过程19云石机MOD8100180.610.8装饰工程20打夯机HZD30020480回填土21平板振捣器PZ-5012448基础、主体22电动试压泵3D-SY 54342.28.8给排水23管道滚槽机JG-1、2、34312给排水24管道开孔机JK-1、232.26.6给排水25电动套丝机QT4-A32.26.6给排水26轻便套丝机QT2-C51.57.5给排水27台钻LT-1352.211给排水28砂轮切割机DIY4416给排水29交流电焊机B3-500-142288给排水30交流电焊机B3-30021428电气31冲击钻TE-24/ 42300.13电气32电钻6-13
5、mm100.11电气33切割机J3G2-400339电气34磨光机Z1M-KY01-00100.11电气35电动电缆剪REC-50-23010.650.65电气36剪板机4200015.55.5通风37单平咬口机YZD-12B248通风38联合角咬口机YZL-12C248通风39折方机WS-12133通风40卷圆机JY1.5-120133通风41压筋机SAF-8133通风42电动铆接机MY-5A133通风43交流电焊机B50032266通风44台钻Z4116/2B6318通风45电锤GBH2SE24mm40.52通风46镝灯20240施工照明47办公用电200200办公区2）各用电设备系数表序
6、号机械设备名称KxCOStg1塔吊0.60.80.752砼输送泵0.60.80.753电焊机0.450.541.564生活办公用电0.60.90.485钢筋切断机0.70.80.756钢筋调直机0.70.80.757钢筋弯曲机0.70.80.758振捣棒、平板振捣器0.60.71.029木工机械0.30.80.7510蛙式打夯机0.50.80.7511直螺纹设备、套丝机0.70.71.0212零星电动工具0.50.80.7513施工照明0.50.90.4814空气压缩机0.70.80.7515外用电梯及物料提升机0.60.80.753）各用电设备的负荷计算根据施工现场的实际情况，对设置于现场的
7、机械进行演算。（1）塔吊Kx = 0.6 Pe = 450 KWPe1 = 450 KWPJs1 = Kx * Pe1 = 0.6 * 450 =270KWQJs1 = PJs1 *tg = 270* 0.75 =202.5Kvar（2）消防水泵Kx = 0.6 Pe = 12/2=6 KW（一用一备）Pe2 = 6 KWPJs2 = Kx * Pe2 = 0.6 * 6 = 3.6KWQJs2 = PJs2 *tg = 3.6* 0.75 =2.7Kvar（3）电焊机Kx = 0.45 Pe =382KW Pe3=382 KWPJs3 = Kx * Pe3 = 0.45 * 382 = 17
8、1.9KWQJs3 = PJs3 *tg = 171.9* 1.56 =268.16Kvar（4）手持小型电动工具Kx = 0.5 Pe = 137.95 KWPe4 = 137.95 KWPJs4 = Kx * Pe4= 0.5 * 137.95 = 68.98 KWQJs4 = PJs4 *tg = 68.98 * 0.75 =51.73Kvar（5）钢筋切断机Kx = 0.7 Pe = 60 KWPe5 = 60 KWPJs5 = Kx * Pe5= 0.7 * 60= 42 KWQJs5 = PJs5 *tg = 42* 0.75 =31.5Kvar（6）钢筋调直机Kx = 0.7 P
9、e = 60 KWPe6 = 60 KWPJs6= Kx * Pe6= 0.7 * 60 = 42 KWQJs6 = PJs6 *tg = 42* 0.75 =31.5Kvar（7）钢筋弯曲机Kx =0.7 Pe = 64 KWPe7 = 64 KWPJs7= Kx * Pe7= 0.7 * 64 = 44.8 KWQJs7 = PJs7 *tg = 44.8* 0.75 =33.6Kvar（8）木工机械Kx =0.3 Pe = 114KWPe8 = 114 KWPJs8= Kx * Pe8= 0.3 * 114= 34.2KWQJs8 = PJs8 *tg = 34.2* 0.75 =25.
10、65Kvar（9）振捣棒、平板振捣器Kx =0.6 Pe = 114 KWPe9= 114KWPJs9= Kx * Pe9= 0.6 * 114 = 68.4 KWQJs9 = PJs9 *tg = 68.4* 1.02 =69.77Kvar（10）打夯机Kx =0.5 Pe = 80 KWPe10 = 80KWPJs10= Kx * Pe10= 0.5 * 80= 40KWQJs10 = PJs10 *tg = 40* 0.75 =30Kvar（11）直螺纹设备、套丝机、台钻Kx =0.7 Pe = 99.1 KWPe11 = 99.1 KWPJs11= Kx * Pe11= 0.7 * 9
11、9.1 = 69.37 KWQJs11 = PJs11 *tg = 69.37* 1.02 =70.76Kvar（12）地泵Kx =0.6 Pe = 560 KWPe12 = 560KWPJs10= Kx * Pe12= 0.6 * 560= 336KWQJs12 = PJs12 *tg = 336* 0.75 =252Kvar（13）空压机Kx =0.7 Pe = 36 KWPe13 = 36KWPJs10= Kx * Pe13= 0.7 * 36= 25.2KWQJs13 = PJs13 *tg = 25.2* 0.75 =18.9Kvar（14）施工照明Kx =0.5 Pe = 40 K
12、WPe14 = 40 KWPJs14= Kx * Pe14= 0.5 * 40= 20 KWQJs14 = PJs14 *tg = 20* 0.48 =9.6Kvar（15）生活办公用电Kx =0.6 Pe = 200 KWPe15 = 200KWPJs15= Kx * Pe15= 0.6 * 200 =120 KWQJs15 = PJs15 *tg = 120* 0.48=57.6Kvar（16）外用电梯及物料提升机Kx =0.6 Pe = 380 KWPe16 = 380 KWPJs16= Kx * Pe16= 0.6 * 380 = 228KWQJs16 = PJs16 *tg = 228* 0.75 =171Kvar4）总负荷计算（1）总有功功率计算PJs总 = PJs1 + PJs2+ PJs3+-
