施工临时用电方案计算书镇山小区安置房二期工程;工程建设地点:镇山北路;属于框架结构;地上六层;;建筑高度:19.08m;标准层层高:2.9m ;总建筑面积:95070.9平方米;总工期:200天。
本工程由金港镇政府投资建设,张家港建筑设计研究院设计,地质勘察,江苏华通监理,江苏金厦建设集团组织施工;由钱进担任项目经理,王雷担任技术负责人。
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 塔式起重机 QT40(TQ2-6) 35 1 352 强制式混凝土搅拌机 JW500 23 1 233 钢筋切断机 QJ40-1 2.2 1 2.24 钢筋弯曲机 GW40 2.2 1 2.25 直流电焊机 AX-320(AT-320) 16.5 1 16.56 插入式振动器 ZX70 1.5 3 4.57 木工圆锯 MJ106 6 1 68 真空吸水泵 HZX-40 2.2 1 2.29 塔式起重机 QT40(TQ2-6) 35 1 3510 强制式混凝土搅拌机 JW500 23 1 2312 钢筋弯曲机 GW40 2.2 1 2.213 直流电焊机 AX-320(AT-320) 16.5 1 16.514 木工圆锯 MJ106 6 3 1815 插入式振动器 ZX70 1.5 1 1.516 真空吸水泵 HZX-40 2.2 1 2.217 高压汞灯 3 4 1218 荧光灯 0.2 10 219 塔式起重机 QT40(TQ2-6) 35 1 3520 强制式混凝土搅拌机 JW500 23 1 2321 钢筋切断机 QJ32-1 2.2 1 2.222 钢筋弯曲机 GW40 2.2 1 2.223 插入式振动器 ZX70 1.5 3 4.524 直流电焊机 AX-320(AT-320) 16.5 1 16.525 木工圆锯 MJ106 6 1 626 真空吸水泵 HZX-40 2.2 1 2.227 塔式起重机 QT40(TQ2-6) 35 1 3528 强制式混凝土搅拌机 JW500 23 1 2329 钢筋切断机 QJ32-1 2.2 1 2.230 钢筋弯曲机 GW40 2.2 1 2.231 插入式振动器 ZX70 1.5 3 4.532 木工圆锯 MJ106 6 1 633 直流电焊机 AX-320(AT-320) 16.5 1 16.534 真空吸水泵 HZX-40 2.2 1 2.235 高压汞灯 3 4 1236 荧光灯 0.2 10 237 塔式起重机 QT40(TQ2-6) 35 1 3538 强制式混凝土搅拌机 JW500 23 1 2339 钢筋切断机 QJ40-1 2.2 1 2.241 直流电焊机 AX-320(AT-320) 16.5 1 16.542 插入式振动器 ZX70 1.5 3 4.543 木工圆锯 MJ106 6 1 644 真空吸水泵 HZX-40 2.2 1 2.245 塔式起重机 QT40(TQ2-6) 35 1 3546 强制式混凝土搅拌机 JW500 23 1 2347 插入式振动器 ZX70 1.5 3 4.548 钢筋切断机 QJ40-1 2.2 1 2.249 钢筋弯曲机 GW40 2.2 1 2.250 直流电焊机 AX-320(AT-320) 16.5 1 16.551 木工圆锯 MJ106 6 1 652 真空吸水泵 HZX-40 2.2 1 2.253 高压汞灯 3 4 1254 荧光灯 0.2 10 2----------------------------------------------------------------------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》规定制定施工组织设计,接地电阻R≤4Ω。
2、确定用电负荷:(1)、塔式起重机K=0.85,Cosφ=0.6,tgφ=1.33x将Jc =40%统一换算到Jc1=25%的额定容量Pn=35kWP e =n×(Jc/Jc1)1/2×Pn=1×(0.4/0.25)1/2×35=44.27 kWP js =Kx×Pe=0.85×44.27=37.63kWQ js =Pjs×tgφ=37.63×1.33=50.17kvar(2)、强制式混凝土搅拌机Kx=0.75,Cosφ=0.85,tgφ=0.62Pjs=0.75×23=17.25kWQ js =Pjs×tgφ=17.25×0.62=10.69kvar(3)、钢筋切断机Kx=0.65,Cosφ=0.7,tgφ=1.02Pjs=0.65×2.2=1.43kWQ js =Pjs×tgφ=1.43×1.02=1.46kvar(4)、钢筋弯曲机Kx=0.65,Cosφ=0.7,tgφ=1.02Pjs=0.65×2.2=1.43kWQ js =Pjs×tgφ=1.43×1.02=1.46kvar(5)、直流电焊机Kx=0.7,Cosφ=0.6,tgφ=1.33将Jc =50%统一换算到Jc1=100%的额定容量Pn=16.5kWP e =n×(Jc/Jc1)1/2×Pn=1×(0.5/1)1/2×16.5=11.67 kWP js =Kx×Pe=0.7×11.67=8.17kWQ js =Pjs×tgφ=8.17×1.33=10.89kvar(6)、插入式振动器Kx=0.3,Cosφ=0.7,tgφ=1.02Pjs=0.3×4.5=1.35kWQ js =Pjs×tgφ=1.35×1.02=1.38kvar(7)、木工圆锯Kx=0.65,Cosφ=0.6,tgφ=1.33Pjs=0.65×6=3.9kWQ js =Pjs×tgφ=3.9×1.33=5.2kvar(8)、真空吸水泵Kx=0.75,Cosφ=0.8,tgφ=0.75Pjs=0.75×2.2=1.65kWQ js =Pjs×tgφ=1.65×0.75=1.24kvar(9)、塔式起重机Kx=0.85,Cosφ=0.6,tgφ=1.33将Jc =40%统一换算到Jc1=25%的额定容量Pn=35kWP e =n×(Jc/Jc1)1/2×Pn=1×(0.4/0.25)1/2×35=44.27 kWP js =Kx×Pe=0.85×44.27=37.63kWQ js =Pjs×tgφ=37.63×1.33=50.17kvar(10)、强制式混凝土搅拌机Kx=0.75,Cosφ=0.85,tgφ=0.62Pjs=0.75×23=17.25kWQ js =Pjs×tgφ=17.25×0.62=10.69kvar(11)、钢筋切断机Kx=0.65,Cosφ=0.7,tgφ=1.02Pjs=0.65×2.2=1.43kWQ js =Pjs×tgφ=1.43×1.02=1.46kvar(12)、钢筋弯曲机Kx=0.65,Cosφ=0.7,tgφ=1.02Pjs=0.65×2.2=1.43kWQ js =Pjs×tgφ=1.43×1.02=1.46kvar(13)、直流电焊机Kx=0.7,Cosφ=0.6,tgφ=1.33将Jc =50%统一换算到Jc1=100%的额定容量Pn=16.5kWP e =n×(Jc/Jc1)1/2×Pn=1×(0.5/1)1/2×16.5=11.67 kWP js =Kx×Pe=0.7×11.67=8.17kWQ js =Pjs×tgφ=8.17×1.33=10.89kvar(14)、木工圆锯Kx=0.65,Cosφ=0.6,tgφ=1.33Pjs=0.65×18=11.7kWQ js =Pjs×tgφ=11.7×1.33=15.6kvar(15)、插入式振动器Kx=0.3,Cosφ=0.7,tgφ=1.02Pjs=0.3×1.5=0.45kWQ js =Pjs×tgφ=0.45×1.02=0.46kvar(16)、真空吸水泵Kx=0.75,Cosφ=0.8,tgφ=0.75Pjs=0.75×2.2=1.65kWQ js =Pjs×tgφ=1.65×0.75=1.24kvar(17)、高压汞灯Kx=0.6,Cosφ=0.7,tgφ=1.02Pjs=0.6×12×1.1=7.92kWQ js =Pjs×tgφ=7.92×1.02=8.08kvar(18)、荧光灯Kx=0.2,Cosφ=0.8,tgφ=0.75Pjs=0.2×2×1.2=0.48kWQ js =Pjs×tgφ=0.48×0.75=0.36kvar(19)、塔式起重机Kx=0.85,Cosφ=0.6,tgφ=1.33将Jc =40%统一换算到Jc1=25%的额定容量Pn=35kWP e =n×(Jc/Jc1)1/2×Pn=1×(0.4/0.25)1/2×35=44.27 kWP js =Kx×Pe=0.85×44.27=37.63kWQ js =Pjs×tgφ=37.63×1.33=50.17kvar(20)、强制式混凝土搅拌机Kx=0.75,Cosφ=0.85,tgφ=0.62Pjs=0.75×23=17.25kWQ js =Pjs×tgφ=17.25×0.62=10.69kvar(21)、钢筋切断机Kx=0.65,Cosφ=0.7,tgφ=1.02Pjs=0.65×2.2=1.43kWQ js =Pjs×tgφ=1.43×1.02=1.46kvar(22)、钢筋弯曲机Kx=0.65,Cosφ=0.7,tgφ=1.02Pjs=0.65×2.2=1.43kWQ js =Pjs×tgφ=1.43×1.02=1.46kvar(23)、插入式振动器Kx=0.3,Cosφ=0.7,tgφ=1.02Pjs=0.3×4.5=1.35kWQ js =Pjs×tgφ=1.35×1.02=1.38kvar(24)、直流电焊机Kx=0.7,Cosφ=0.6,tgφ=1.33将Jc =50%统一换算到Jc1=100%的额定容量Pn=16.5kWP e =n×(Jc/Jc1)1/2×Pn=1×(0.5/1)1/2×16.5=11.67 kWP js =Kx×Pe=0.7×11.67=8.17kWQ js =Pjs×tgφ=8.17×1.33=10.89kvar(25)、木工圆锯Kx=0.65,Cosφ=0.6,tgφ=1.33Pjs=0.65×6=3.9kWQ js =Pjs×tgφ=3.9×1.33=5.2kvar(26)、真空吸水泵Kx=0.75,Cosφ=0.8,tgφ=0.75Pjs=0.75×2.2=1.65kWQ js =Pjs×tgφ=1.65×0.75=1.24kvar(27)、塔式起重机Kx=0.85,Cosφ=0.6,tgφ=1.33将Jc =40%统一换算到Jc1=25%的额定容量Pn=35kWP e =n×(Jc/Jc1)1/2×Pn=1×(0.4/0.25)1/2×35=44.27 kWP js =Kx×Pe=0.85×44.27=37.63kWQ js =Pjs×tgφ=37.63×1.33=50.17kvar(28)、强制式混凝土搅拌机Kx=0.75,Cosφ=0.85,tgφ=0.62Pjs=0.75×23=17.25kWQ js =Pjs×tgφ=17.25×0.62=10.69kvar(29)、钢筋切断机Kx=0.65,Cosφ=0.7,tgφ=1.02Pjs=0.65×2.2=1.43kWQ js =Pjs×tgφ=1.43×1.02=1.46kvar(30)、钢筋弯曲机Kx=0.65,Cosφ=0.7,tgφ=1.02Pjs=0.65×2.2=1.43kWQ js =Pjs×tgφ=1.43×1.02=1.46kvar(31)、插入式振动器Kx=0.3,Cosφ=0.7,tgφ=1.02Pjs=0.3×4.5=1.35kWQ js =Pjs×tgφ=1.35×1.02=1.38kvar(32)、木工圆锯Kx=0.65,Cosφ=0.6,tgφ=1.33Pjs=0.65×6=3.9kWQ js =Pjs×tgφ=3.9×1.33=5.2kvar(33)、直流电焊机Kx=0.7,Cosφ=0.6,tgφ=1.33将Jc =50%统一换算到Jc1=100%的额定容量Pn=16.5kWP e =n×(Jc/Jc1)1/2×Pn=1×(0.5/1)1/2×16.5=11.67 kWP js =Kx×Pe=0.7×11.67=8.17kWQ js =Pjs×tgφ=8.17×1.33=10.89kvar(34)、真空吸水泵Kx=0.75,Cosφ=0.8,tgφ=0.75Pjs=0.75×2.2=1.65kWQ js =Pjs×tgφ=1.65×0.75=1.24kvar(35)、高压汞灯Kx=0.6,Cosφ=0.7,tgφ=1.02Pjs=0.6×12×1.1=7.92kWQ js =Pjs×tgφ=7.92×1.02=8.08kvar(36)、荧光灯Kx=0.2,Cosφ=0.8,tgφ=0.75Pjs=0.2×2×1.2=0.48kWQ js =Pjs×tgφ=0.48×0.75=0.36kvar(37)、塔式起重机Kx=0.85,Cosφ=0.6,tgφ=1.33将Jc =40%统一换算到Jc1=25%的额定容量Pn=35kWP e =n×(Jc/Jc1)1/2×Pn=1×(0.4/0.25)1/2×35=44.27 kWP js =Kx×Pe=0.85×44.27=37.63kWQ js =Pjs×tgφ=37.63×1.33=50.17kvar(38)、强制式混凝土搅拌机Kx=0.75,Cosφ=0.85,tgφ=0.62Pjs=0.75×23=17.25kWQ js =Pjs×tgφ=17.25×0.62=10.69kvar(39)、钢筋切断机Kx=0.65,Cosφ=0.7,tgφ=1.02Pjs=0.65×2.2=1.43kWQ js =Pjs×tgφ=1.43×1.02=1.46kvar(40)、钢筋弯曲机Kx=0.65,Cosφ=0.7,tgφ=1.02Pjs=0.65×2.2=1.43kWQ js =Pjs×tgφ=1.43×1.02=1.46kvar(41)、直流电焊机Kx=0.7,Cosφ=0.6,tgφ=1.33将Jc =50%统一换算到Jc1=100%的额定容量Pn=16.5kWP e =n×(Jc/Jc1)1/2×Pn=1×(0.5/1)1/2×16.5=11.67 kWP js =Kx×Pe=0.7×11.67=8.17kWQ js =Pjs×tgφ=8.17×1.33=10.89kvar(42)、插入式振动器Kx=0.3,Cosφ=0.7,tgφ=1.02Pjs=0.3×4.5=1.35kWQ js =Pjs×tgφ=1.35×1.02=1.38kvar(43)、木工圆锯Kx=0.65,Cosφ=0.6,tgφ=1.33Pjs=0.65×6=3.9kWQ js =Pjs×tgφ=3.9×1.33=5.2kvar(44)、真空吸水泵Kx=0.75,Cosφ=0.8,tgφ=0.75Pjs=0.75×2.2=1.65kWQ js =Pjs×tgφ=1.65×0.75=1.24kvar(45)、塔式起重机Kx=0.85,Cosφ=0.6,tgφ=1.33将Jc =40%统一换算到Jc1=25%的额定容量Pn=35kWP e =n×(Jc/Jc1)1/2×Pn=1×(0.4/0.25)1/2×35=44.27 kWP js =Kx×Pe=0.85×44.27=37.63kWQ js =Pjs×tgφ=37.63×1.33=50.17kvar(46)、强制式混凝土搅拌机Kx=0.75,Cosφ=0.85,tgφ=0.62Pjs=0.75×23=17.25kWQ js =Pjs×tgφ=17.25×0.62=10.69kvar(47)、插入式振动器Kx=0.3,Cosφ=0.7,tgφ=1.02Pjs=0.3×4.5=1.35kWQ js =Pjs×tgφ=1.35×1.02=1.38kvar(48)、钢筋切断机Kx=0.65,Cosφ=0.7,tgφ=1.02Pjs=0.65×2.2=1.43kWQ js =Pjs×tgφ=1.43×1.02=1.46kvar(49)、钢筋弯曲机Kx=0.65,Cosφ=0.7,tgφ=1.02Pjs=0.65×2.2=1.43kWQ js =Pjs×tgφ=1.43×1.02=1.46kvar(50)、直流电焊机Kx=0.7,Cosφ=0.6,tgφ=1.33将Jc =50%统一换算到Jc1=100%的额定容量Pn=16.5kWP e =n×(Jc/Jc1)1/2×Pn=1×(0.5/1)1/2×16.5=11.67 kWP js =Kx×Pe=0.7×11.67=8.17kWQ js =Pjs×tgφ=8.17×1.33=10.89kvar(51)、木工圆锯Kx=0.65,Cosφ=0.6,tgφ=1.33Pjs=0.65×6=3.9kWQ js =Pjs×tgφ=3.9×1.33=5.2kvar(52)、真空吸水泵Kx=0.75,Cosφ=0.8,tgφ=0.75Pjs=0.75×2.2=1.65kWQ js =Pjs×tgφ=1.65×0.75=1.24kvar(53)、高压汞灯Kx=0.6,Cosφ=0.7,tgφ=1.02Pjs=0.6×12×1.1=7.92kWQ js =Pjs×tgφ=7.92×1.02=8.08kvar(54)、荧光灯Kx=0.2,Cosφ=0.8,tgφ=0.75Pjs=0.2×2×1.2=0.48kWQ js =Pjs×tgφ=0.48×0.75=0.36kvar(55)总的计算负荷计算,总箱同期系数取Kx=0.4 总的有功功率P js =Kx×ΣPjs=0.4×(37.63+17.25+1.43+1.43+8.17+1.35+3.9+1.65+37.63+17.25+1.43+1.43+8 .17+11.7+0.45+1.65+7.92+0.48+37.63+17.25+1.43+1.43+1.35+8.17+3.9+1.65+37.63 +17.25+1.43+1.43+1.35+3.9+8.17+1.65+7.92+0.48+37.63+17.25+1.43+1.43+8.17+1. 35+3.9+1.65+37.63+17.25+1.35+1.43+1.43+8.17+3.9+1.65+7.92+0.48)=187.579kW 总的无功功率Q js =Kx×ΣQjs=0.4×(50.17+10.69+1.46+1.46+10.89+1.38+5.2+1.24+50.17+10.69+1.46+1.46+ 10.89+15.6+0.46+1.24+8.08+0.36+50.17+10.69+1.46+1.46+1.38+10.89+5.2+1.24+50。