某工程 施工现场临时用电施工方案12

施工现场临时用电方案1二、确定线路走向、电源线线径及电箱位置1、根据施工现场用电设备布置情况，动力与照明分开，工程13#楼和11#楼由一个级电箱分出3路干线埋地敷设，引至各二级分配电箱，再由分配电箱引至各用电设备的开关箱。9#楼和8#楼由一个级电箱分出3路干线埋地敷设，引至各二级分配电箱，再由分配电箱引至各用电设备的开关箱。2、据《施工现场临时用电安全技术规范》规定，本供电采用三相五线制供电即（TN-S）系统，采用三级漏电保护制度。3、配电箱的选择：采用总公司统一规格的各级电箱作配电箱，二级电箱的要求：（1）箱内设漏电开关（型号：DZ10L-100/3），闸刀开关带保险（型号：HK-100/3）、熔体电流50（A），接线柱（3×100A）组成.（2）漏电开关的动作电流及动作时间指标分别为(50mA,小于0.1S)。（3）二级电箱外壳必须联通保护接地且重复接地。（4）各楼层用电考虑施工及敷设方便，宜设在塔吊侧并每层设一个配电箱，由该电箱输出各个流动电箱。蛙式夯土机Kx=0.5Cosφ=0.55tgφ=1.52Ijs=Kx×Pe×台数/(1.732×Ue×Cosφ)=0.5×3×1/(1.732×0.38×0.55)=4.14A插入式振动器Kx=0.3Cosφ=0.7tgφ=1.02Ijs=Kx×Pe×台数/(1.732×Ue×Cosφ)=0.3×0.8×1/(1.732×0.38×0.7)=0.52A平板式振动器Kx=0.3Cosφ=0.7tgφ=1.02Ijs=Kx×Pe×台数/(1.732×Ue×Cosφ)=0.3×1.1×1/(1.732×0.38×0.7)=0.72A交流电焊机Kx=0.5Cosφ=0.4tgφ=2.29Ijs=Kx×Pe×台数/(Ue×Cosφ)=0.5×6.62×1/(0.38×0.4)=21.77A高压汞灯施工现场临时用电方案2Kx=0.75Cosφ=0.8tgφ=0.75Ijs=Kx×Pe×台数/(1.732×Ue×Cosφ)=0.75×4×1/(1.732×0.38×0.8)=5.7A自落式混凝土搅拌机Kx=0.75Cosφ=0.85tgφ=0.62Ijs=Kx×Pe×台数/(1.732×Ue×Cosφ)=0.75×5.5×1/(1.732×0.38×0.85)=7.37A白炽灯Kx=0.9Cosφ=0.9tgφ=0.48Ijs=Kx×Pe×台数/(Ue×Cosφ)=0.9×1×1/(0.22×0.9)=4.55A备用Kx=0.9Cosφ=0.9tgφ=0.48Ijs=Kx×Pe×台数/(Ue×Cosφ)=0.9×1×1/(0.22×0.9)=4.55A备用Kx=0.9Cosφ=0.9tgφ=0.48Ijs=Kx×Pe×台数/(Ue×Cosφ)=0.9×1×1/(0.22×0.9)=4.55A自落式混凝土搅拌机Kx=0.75Cosφ=0.85tgφ=0.62Ijs=Kx×Pe×台数/(1.732×Ue×Cosφ)=0.75×5.5×1/(1.732×0.38×0.85)=7.37A插入式振动器Kx=0.3Cosφ=0.7tgφ=1.02Ijs=Kx×Pe×台数/(1.732×Ue×Cosφ)=0.3×1.1×1/(1.732×0.38×0.7)=0.72A高压汞灯Kx=0.75Cosφ=0.8tgφ=0.75Ijs=Kx×Pe×台数/(1.732×Ue×Cosφ)=0.75×4×1/(1.732×0.38×0.8)=5.7A蛙式夯土机Kx=0.5Cosφ=0.55tgφ=1.52Ijs=Kx×Pe×台数/(1.732×Ue×Cosφ)=0.5×3×1/(1.732×0.38×0.55)=4.14A施工现场临时用电方案3平板式振动器Kx=0.3Cosφ=0.7tgφ=1.02Ijs=Kx×Pe×台数/(1.732×Ue×Cosφ)=0.3×0.5×1/(1.732×0.38×0.7)=0.33A直流电焊机Kx=0.7Cosφ=0.6tgφ=1.33Ijs=Kx×Pe×台数/(Ue×Cosφ)=0.7×18.38×1/(0.38×0.6)=56.44A白炽灯Kx=0.9Cosφ=0.9tgφ=0.48Ijs=Kx×Pe×台数/(Ue×Cosφ)=0.9×1×1/(0.22×0.9)=4.55A备用Kx=1Cosφ=1tgφ=0Ijs=Kx×Pe×台数/(Ue×Cosφ)=1×0.1×1/(0.22×1)=0.45A备用Kx=0.9Cosφ=0.9tgφ=0.48Ijs=Kx×Pe×台数/(Ue×Cosφ)=0.9×1×1/(0.22×0.9)=4.55A钢筋切断机Kx=0.65Cosφ=0.7tgφ=1.02Ijs=Kx×Pe×台数/(1.732×Ue×Cosφ)=0.65×7×1/(1.732×0.38×0.7)=9.88A钢筋弯曲机Kx=0.65Cosφ=0.7tgφ=1.02Ijs=Kx×Pe×台数/(1.732×Ue×Cosφ)=0.65×3×1/(1.732×0.38×0.7)=4.23A木工圆锯Kx=0.65Cosφ=0.6tgφ=1.33Ijs=Kx×Pe×台数/(1.732×Ue×Cosφ)=0.65×5.5×1/(1.732×0.38×0.6)=9.05A闪光对焊机Kx=0.65Cosφ=0.7tgφ=1.02施工现场临时用电方案4Ijs=Kx×Pe×台数/(1.732×Ue×Cosφ)=0.65×50×1/(1.732×0.38×0.7)=70.54A备用Kx=0.9Cosφ=0.9tgφ=0.48Ijs=Kx×Pe×台数/(Ue×Cosφ)=0.9×1×1/(0.22×0.9)=4.55A备用Kx=1Cosφ=1tgφ=0Ijs=Kx×Pe×台数/(Ue×Cosφ)=1×0.1×1/(0.22×1)=0.45A施工现场临时用电方案5施工现场临时用电方案6供电系统简图施工现场临时用电方案7施工现场临时用电方案8施工现场临时用电方案9施工现场临时用电方案10施工现场临时用电方案11施工现场临时用电方案12施工现场临时用电方案13施工现场临时用电方案14施工现场临时用电方案15