联泰悦水湾(一期)施工临时用电专项方案(一组团)汕头市广华建安装饰工程有限公司联泰悦水湾(一期)项目第3、5栋工程施工临时用电专项施工方案汕头市广华建安装饰有限公司二O一五年八月联泰悦水湾(一期)施工临时用电专项方案(一组团)-1-目录一、编制依据............................................................................................................................2二、施工条件............................................................................................................................2(一)工程概况·························································································································`·····2(二)施工现场用电量统计表········································································································2三、用电设计内容和步骤........................................................................................................3(一)现场勘探及初步设计................................................................................................3(二)确定用电负荷:...........................................................................................................3四、用电安全管理机构··························································································`·····25五、绘制临时供电施工图······································································································`·····25六、安全用电技术措施..........................................................................................................26七、安全用电防火措施..........................................................................................................40八、防雷装置设计................................................................................................................42九、接地装置设计................................................................................................................42联泰悦水湾(一期)施工临时用电专项方案(一组团)-2-一、编制依据1、《施工现场临时用电安全技术规范》JGJ46-20052、《低压配电设计规范》GB50054-20113、《建筑工程施工现场供电安全规范》GB50194-934、《通用用电设备配电设计规范》GB50055-20115、《供配电系统设计规范》GB50052-20096、《建筑施工安全检查标准》JGJ59-20117、施工现场地方实际供用电情况。8、施工承包合同及施工图纸。二、施工条件1、工程概况(1)工程名称:联泰悦水湾(一期)项目第3、5栋工程(2)建设地点:汕头市濠江区南滨路与市跳水馆交接处(3)建筑面积:32442.71㎡(4)质量标准:国家施工验收规范规定的质量标准和备案标准2、施工现场用电量统计表二号变压器序号机具名称型号安装功率(kW)数量合计功率(kW)1建筑施工外用电梯SCD100/100112222插入式振动器ZX501.144.43平板式振动器ZB111.111.14灰浆搅拌机UJ32534125钢筋调直机GT4/144146钢筋切断机QJ32-13267钢筋弯曲机GW403268木工圆锯MJ1043269塔式起重机TC6510-651.3151.310高压汞灯33911白炽灯0.1300.3联泰悦水湾(一期)施工临时用电专项方案(一组团)-3-12真空吸水泵100ZX70-8041413用电总合计功率(KW)126.1KW三、用电设计内容和步骤(一)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,二号变压器各设一配电总箱,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,总箱进线采用导线空气明敷/架空线路敷设,干线采用空气明敷/架空线路敷设,用电器导线采用空气明敷/架空线路敷设。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》规定制定施工组织方案,接地电阻R≤4Ω。(二)二号变压器配电情况:1、确定用电负荷:(1)、建筑施工外用电梯Kx=0.85,Cosφ=0.6,tgφ=1.33Pjs=0.85×33=28.05kWQjs=Pjs×tgφ=28.05×1.33=37.4kvar(2)、插入式振动器Kx=0.3,Cosφ=0.7,tgφ=1.02Pjs=0.3×1.1=0.33kWQjs=Pjs×tgφ=0.33×1.02=0.34kvar(3)、平板式振动器Kx=0.3,Cosφ=0.7,tgφ=1.02Pjs=0.3×1.1=0.33kWQjs=Pjs×tgφ=0.33×1.02=0.34kvar(4)、灰浆搅拌机Kx=0.5,Cosφ=0.55,tgφ=1.52Pjs=0.5×6=3kWQjs=Pjs×tgφ=3×1.52=4.56kvar联泰悦水湾(一期)施工临时用电专项方案(一组团)-4-(5)、钢筋调直机Kx=0.65,Cosφ=0.7,tgφ=1.02Pjs=0.65×4=2.6kWQjs=Pjs×tgφ=2.6×1.02=2.65kvar(6)、钢筋切断机Kx=0.65,Cosφ=0.7,tgφ=1.02Pjs=0.65×3=1.95kWQjs=Pjs×tgφ=1.95×1.02=1.99kvar(7)、钢筋弯曲机Kx=0.65,Cosφ=0.7,tgφ=1.02Pjs=0.65×3=1.95kWQjs=Pjs×tgφ=1.95×1.02=1.99kvar(8)、木工圆锯Kx=0.65,Cosφ=0.6,tgφ=1.33Pjs=0.65×6=3.9kWQjs=Pjs×tgφ=3.9×1.33=5.2kvar(9)、塔式起重机Kx=0.7,Cosφ=0.65,tgφ=1.17将Jc=40%统一换算到Jc1=25%的额定容量Pn=51.3kWPe=n×(Jc/Jc1)1/2×Pn=1×(0.4/0.25)1/2×51.3=64.89kWPjs=Kx×Pe=0.7×64.89=45.42kWQjs=Pjs×tgφ=45.42×1.17=53.11kvar(10)、高压汞灯Kx=0.6,Cosφ=0.7,tgφ=1.02Pjs=0.6×9×1.1=5.94kWQjs=Pjs×tgφ=5.94×1.02=6.06kvar(11)、白炽灯Kx=1,Cosφ=1,tgφ=0Pjs=1×4.5×1=4.5kW联泰悦水湾(一期)施工临时用电专项方案(一组团)-5-Qjs=Pjs×tgφ=4.5×0=0kvar(12)、真空吸水泵Kx=0.75,Cosφ=0.8,tgφ=0.75Pjs=0.75×8=6kWQjs=Pjs×tgφ=6×0.75=4.5kvar(13)总的计算负荷计算,总箱同期系数取Kx=0.95总的有功功率Pjs=Kx×ΣPjs=0.95×(28.05+0.33+0.33+3+2.6+1.95+1.95+3.9+45.42+5.94+4.5+9.35+30.37+0.33+0.33+1.98+1.5+18.7+0.66+0.66+3.9+2.6+1.95+1.95+1.27+3.9+6+45.42+3.96+3)=126.1kW总的无功功率Qjs=Kx×ΣQjs=0.95×(37.4+0.34+0.34+4.56+2.65+1.99+1.99+5.2+53.11+6.06+0+12.47+35.51+0.34+0.34+2.02+0+24.93+0.67+0.67+2.92+2.65+1.99+1.99+2.92+5.2+4.5+53.11+4.04+0)=256.41kvar总的视在功率Sjs=(Pjs2+Qjs2)1/2=(224.022+256.412)1/2=340.48kVA总的计算电流计算Ijs=Sjs/(1.732×Ue)=340.48/(1.732×0.38)=517.32A2、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,选择导线及开关设备。分配箱至开关箱,开关箱至用电设备的导线敷设采用铜空气明敷/架空线路,室外架空铜导线按机械强度的最小截面为10mm2。(1)、建筑施工外用电梯开关箱至建筑施工外用电梯导线截面及开关箱内电气设备选择(开关箱以下用电器启动后需要系数取1):i)计算电流Kx=1,Cosφ=0.6,tgφ=1.33Ijs=Kx×Pe/(1.732×Ue×Cosφ)=1×11/(1.732×0.38×0.6)=27.86Aii)选择导线联泰悦水湾(一期)施工临时用电专项方案(一组团)-6-选择VV-3×16+2×10,空气明敷/架空线路时其安全载流量为83A。室外架空铜芯导线按机械强度的最小截面为10mm2,满足要求。iii)选择电气设备由于开关控制3台用电器,开关的电流为Ir=27.86×3(台数)=83.57A。选择开关箱内隔离开关为HH3-100/100,其熔体额定电流为Ir=100A,漏电保护器为DZ10L-100/100。(2)、插入式振动器开关箱至插入式振动器导线截面及开关箱内电气设备选择(开关箱以下用电器启动后需要系数取1):i)计算电流Kx=1,Cosφ=0.7,tgφ=1.02Ijs=Kx×Pe/(1.732×Ue×Cosφ)=1×1.1/(1.732×0.38×0.7)=2.39Aii)选择导线选择VV-3×10+2×6,空气明敷/架空线路时其安全载流量为53A。室外架空铜芯导线按机械强度的最小截面为10mm2,满足要求。iii)选择电气设备选择开关箱内隔离开关为HK1-10/10,其熔体额定电流为Ir=10A,漏电保护器为DZ15LE-40/10。(3)、平板式振动器开关箱至平板式振动器导线截面及开关箱内电气设备选择(开关箱以下用电器启动后需要系数取1):i)计算电流Kx=1,Cosφ=0.7,tgφ=1.02Ijs=Kx×Pe/(1.732×U