81公馆施工临时用电方案计算书.doc

睢宁县81公馆1#3#5#6#7#8#楼睢 宁 县 81 公 馆1#3#5#6#7#8#楼工程施工临时用电专项安全施工方案编制人： 审核人： 批准人： 批准部门(章) 编制日期： 施工临时用电方案计算书睢宁县81公馆1#3#5#6#7#8#楼工程位于睢宁县八一路以南、彩虹公寓以北、御花园小区以西、春江花城以东；属于框架结构（其中1#楼为剪力墙结构）;地上5层（其中1#楼为18层）;地下1层；建筑高度：15.118.9m（其中1#楼为56.8 m）；标准层层高：2.9m ；总建筑面积：30724.5平方米；总工期：210天（1#楼为345天）；施工单位：浙江新宇建设有限公司。本工程由江苏泰信置业有限公司投资建设，江苏华海建筑设计有限公司设计，江苏省徐州工程勘察院地质勘察，徐州正圆监理公司监理，浙江新宇建设有限公司组织施工；由夏信担任项目经理，袁旺民担任技术负责人。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 SCD100/100A 11 1 11 2 灰浆搅拌机 UJ325 3 1 3 3 真空吸水泵 HZX-60A 4 1 4 4 平板式振动器 ZB11 1.1 1 1.1 5 插入式振动器 ZX50 1.1 3 3.3 6 塔式起重机 QT40（TQ2-6） 48 1 48 7 JD350 15 1 15 8 木工圆锯 MJ104 3 1 3 9 备用 5 1 5 10 交流电焊机 BX3-500-2 38.6 1 38.6 11 高压汞灯 3 2 6 12 碘钨灯 1 4 4 13 备用 3 1 3 14 交流电焊机 BX3-500-2 38.6 1 38.6 15 插入式振动器 ZX50 1.1 3 3.3 16 木工圆锯 MJ104 3 1 3 17 JD350 15 1 15 18 灰浆搅拌机 UJ325 3 1 3 19 平板式振动器 ZB11 1.1 1 1.1 20 塔式起重机 QT40（TQ2-6） 48 1 48 21 备用 5 1 5 22 备用 5 1 5 23 碘钨灯 1 4 4 24 高压汞灯 3 2 6 25 空调 2 15 30 26 白炽灯 1 5 5 27 备用 3 1 3 28 荧光灯 0.2 40 8 29 钢筋切断机 QJ32-1 3 2 6 30 备用 5 1 5 31 交流电焊机 BX3-500-2 38.6 1 38.6 32 钢筋弯曲机 GW40 3 3 9 33 碘钨灯 1 4 4 34 备用 3 1 3 35 JD350 15 1 15 36 备用 5 1 5 37 插入式振动器 ZX50 1.1 3 3.3 38 平板式振动器 ZB11 1.1 1 1.1 39 交流电焊机 BX3-500-2 38.6 1 38.6 40 木工圆锯 MJ104 3 1 3 41 塔式起重机 QT40（TQ2-6） 48 1 48 42 灰浆搅拌机 UJ325 3 1 3 43 高压汞灯 3 2 6 44 碘钨灯 1 4 4 45 备用 5 1 5 46 插入式振动器 ZX50 1.1 3 3.3 47 备用 5 1 5 48 灰浆搅拌机 UJ325 3 1 3 49 平板式振动器 ZB11 1.1 1 1.1 50 塔式起重机 QT40（TQ2-6） 48 1 48 51 交流电焊机 BX3-500-2 38.6 1 38.6 52 木工圆锯 MJ104 3 1 3 53 JD350 15 1 15 54 高压汞灯 3 2 6 55 碘钨灯 1 4 4 56 备用 5 1 5 57 钢筋弯曲机 GW40 3 1 3 58 交流电焊机 BX3-500-2 38.6 1 38.6 59 钢筋弯曲机 WJ40 3 1 3 60 备用 3 1 3 61 备用 5 1 5 62 碘钨灯 1 3 3 63 白炽灯 1 5 5 64 荧光灯 0.2 30 6 65 备用 3 1 3 66 空调 2 1 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敷设，干线采用空气明敷敷设，用电器导线采用空气明敷敷设。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R4。2、确定用电负荷:(1)、建筑施工外用电梯Kx = 0.2 Cos = 0.6 tg = 1.33Pjs = 0.211 = 2.2 kWQjs = Pjs tg=2.21.33 = 2.93 kvar(2)、灰浆搅拌机Kx = 0.5 Cos = 0.55 tg = 1.52Pjs = 0.53 = 1.5 kWQjs = Pjs tg=1.51.52 = 2.28 kvar(3)、真空吸水泵Kx = 0.75 Cos = 0.8 tg = 0.75Pjs = 0.754 = 3 kWQjs = Pjs tg=30.75 = 2.25 kvar(4)、平板式振动器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.31.1 = 0.33 kWQjs = Pjs tg=0.331.02 = 0.34 kvar(5)、插入式振动器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.33.3 = 0.99 kWQjs = Pjs tg=0.991.02 = 1.01 kvar(6)、塔式起重机Kx = 0.2 Cos = 0.6 tg = 1.33将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 48kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/248 = 60.72 kWPjs = KxPe =0.260.72 = 12.14kWQjs = Pjs tg=12.141.33 = 16.19 kvar(7)、自落式混凝土搅拌机Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.7515 = 11.25 kWQjs = Pjs tg=11.250.62 = 6.97 kvar(8)、木工圆锯Kx = 0.3 Cos = 0.6 tg = 1.33Pjs = 0.33 = 0.9 kWQjs = Pjs tg=0.91.33 = 1.2 kvar(9)、备用Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.35 = 1.5 kWQjs = Pjs tg=1.51.02 = 1.53 kvar(10)、交流电焊机Kx = 0.35 Cos = 0.4 tg = 2.29将Jc =50%统一换算到Jc1 =100%的额定容量Pn = Sn Cos = 38.60.4=15.44kWPe = n(Jc/Jc1)1/2Pn = 1(0.5/1)1/215.44 = 10.92 kWPjs = KxPe =0.3510.92 = 3.82kWQjs = Pjs tg=3.822.29 = 8.76 kvar(11)、高压汞灯Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0.661.1 = 3.96 kWQjs = Pjs tg=3.961.02 = 4.04 kvar(12)、碘钨灯Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.341 = 1.2 kWQjs = Pjs tg=1.21.02 = 1.22 kvar(13)、备用Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.331 = 0.9 kWQjs = Pjs tg=0.91.02 = 0.92 kvar(14)、交流电焊机Kx = 0.35 Cos = 0.4 tg = 2.29将Jc =50%统一换算到Jc1 =100%的额定容量Pn = Sn Cos = 38.60.4=15.44kWPe = n(Jc/Jc1)1/2Pn = 1(0.5/1)1/215.44 = 10.92 kWPjs = KxPe =0.3510.92 = 3.82kWQjs = Pjs tg=3.822.29 = 8.76 kvar(15)、插入式振动器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.33.3 = 0.99 kWQjs = Pjs tg=0.991.02 = 1.01 kvar(16)、木工圆锯Kx = 0.3 Cos = 0.6 tg = 1.33Pjs = 0.33 = 0.9 kWQjs = Pjs tg=0.91.33 = 1.2 kvar(17)、自落式混凝土搅拌机Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.7515 = 11.25 kWQjs = Pjs tg=11.250.62 = 6.97 kvar(18)、灰浆搅拌机Kx = 0.5 Cos = 0.55 tg = 1.52Pjs = 0.53 = 1.5 kWQjs = Pjs tg=1.51.52 = 2.28 kvar(19)、平板式振动器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.31.1 = 0.33 kWQjs = Pjs tg=0.331.02 = 0.34 kvar(20)、塔式起重机Kx = 0.2 Cos = 0.6 tg = 1.33将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 48kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/248 = 60.72 kWPjs = KxPe =0.260.72 = 12.14kWQjs = Pjs tg=12.141.33 = 16.19 kvar(21)、备用Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.35 = 1.5 kWQjs = Pjs tg=1.51.02 = 1.53 kvar(22)、备用Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.351 = 1.5 kWQjs = Pjs tg=1.51.02 = 1.53 kvar(23)、碘钨灯Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.341 = 1.2 kWQjs = Pjs tg=1.21.02 = 1.22 kvar(24)、高压汞灯Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0.661.1 = 3.96 kWQjs = Pjs tg=3.961.02 = 4.04 kvar(25)、空调Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.3301 = 9 kWQjs = Pjs tg=91.02 = 9.18 kvar(26)、白炽灯Kx = 0.9 Cos = 0.9 tg = 0.48Pjs = 0.951 = 4.5 kWQjs = Pjs tg=4.50.48 = 2.18 kvar(27)、备用Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.331 = 0.9 kWQjs = Pjs tg=0.91.02 = 0.92 kvar(28)、荧光灯Kx = 0.2 Cos = 0.8 tg = 0.75Pjs = 0.281.2 = 1.92 kWQjs = Pjs tg=1.920.75 = 1.44 kvar(29)、钢筋切断机Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.36 = 1.8 kWQjs = Pjs tg=1.81.02 = 1.84 kvar(30)、备用Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.35 = 1.5 kWQjs = Pjs tg=1.51.02 = 1.53 kvar(31)、交流电焊机Kx = 0.35 Cos = 0.4 tg = 2.29将Jc =50%统一换算到Jc1 =100%的额定容量Pn = Sn Cos = 38.60.4=15.44kWPe = n(Jc/Jc1)1/2Pn = 1(0.5/1)1/215.44 = 10.92 kWPjs = KxPe =0.3510.92 = 3.82kWQjs = Pjs tg=3.822.29 = 8.76 kvar(32)、钢筋弯曲机Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.39 = 2.7 kWQjs = Pjs tg=2.71.02 = 2.75 kvar(33)、碘钨灯Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.341 = 1.2 kWQjs = Pjs tg=1.21.02 = 1.22 kvar(34)、备用Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.331 = 0.9 kWQjs = Pjs tg=0.91.02 = 0.92 kvar(35)、自落式混凝土搅拌机Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.7515 = 11.25 kWQjs = Pjs tg=11.250.62 = 6.97 kvar(36)、备用Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.35 = 1.5 kWQjs = Pjs tg=1.51.02 = 1.53 kvar(37)、插入式振动器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.33.3 = 0.99 kWQjs = Pjs tg=0.991.02 = 1.01 kvar(38)、平板式振动器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.31.1 = 0.33 kWQjs = Pjs tg=0.331.02 = 0.34 kvar(39)、交流电焊机Kx = 0.35 Cos = 0.4 tg = 2.29将Jc =50%统一换算到Jc1 =100%的额定容量Pn = Sn Cos = 38.60.4=15.44kWPe = n(Jc/Jc1)1/2Pn = 1(0.5/1)1/215.44 = 10.92 kWPjs = KxPe =0.3510.92 = 3.82kWQjs = Pjs tg=3.822.29 = 8.76 kvar(40)、木工圆锯Kx = 0.3 Cos = 0.6 tg = 1.33Pjs = 0.33 = 0.9 kWQjs = Pjs tg=0.91.33 = 1.2 kvar(41)、塔式起重机Kx = 0.2 Cos = 0.6 tg = 1.33将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 48kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/248 = 60.72 kWPjs = KxPe =0.260.72 = 12.14kWQjs = Pjs tg=12.141.33 = 16.19 kvar(42)、灰浆搅拌机Kx = 0.5 Cos = 0.55 tg = 1.52Pjs = 0.53 = 1.5 kWQjs = Pjs tg=1.51.52 = 2.28 kvar(43)、高压汞灯Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0.661.1 = 3.96 kWQjs = Pjs tg=3.961.02 = 4.04 kvar(44)、碘钨灯Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.341 = 1.2 kWQjs = Pjs tg=1.21.02 = 1.22 kvar(45)、备用Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.351 = 1.5 kWQjs = Pjs tg=1.51.02 = 1.53 kvar(46)、插入式振动器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.33.3 = 0.99 kWQjs = Pjs tg=0.991.02 = 1.01 kvar(47)、备用Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.35 = 1.5 kWQjs = Pjs tg=1.51.02 = 1.53 kvar(48)、灰浆搅拌机Kx = 0.5 Cos = 0.55 tg = 1.52Pjs = 0.53 = 1.5 kWQjs = Pjs tg=1.51.52 = 2.28 kvar(49)、平板式振动器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.31.1 = 0.33 kWQjs = Pjs tg=0.331.02 = 0.34 kvar(50)、塔式起重机Kx = 0.2 Cos = 0.6 tg = 1.33将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 48kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/248 = 60.72 kWPjs = KxPe =0.260.72 = 12.14kWQjs = Pjs tg=12.141.33 = 16.19 kvar(51)、交流电焊机Kx = 0.35 Cos = 0.4 tg = 2.29将Jc =50%统一换算到Jc1 =100%的额定容量Pn = Sn Cos = 38.60.4=15.44kWPe = n(Jc/Jc1)1/2Pn = 1(0.5/1)1/215.44 = 10.92 kWPjs = KxPe =0.3510.92 = 3.82kWQjs = Pjs tg=3.822.29 = 8.76 kvar(52)、木工圆锯Kx = 0.3 Cos = 0.6 tg = 1.33Pjs = 0.33 = 0.9 kWQjs = Pjs tg=0.91.33 = 1.2 kvar(53)、自落式混凝土搅拌机Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.7515 = 11.25 kWQjs = Pjs tg=11.250.62 = 6.97 kvar(54)、高压汞灯Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0.661.1 = 3.96 kWQjs = Pjs tg=3.961.02 = 4.04 kvar(55)、碘钨灯Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.341 = 1.2 kWQjs = Pjs tg=1.21.02 = 1.22 kvar(56)、备用Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.351 = 1.5 kWQjs = Pjs tg=1.51.02 = 1.53 kvar(57)、钢筋弯曲机Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.33 = 0.9 kWQjs = Pjs tg=0.91.02 = 0.92 kvar(58)、交流电焊机Kx = 0.35 Cos = 0.4 tg = 2.29将Jc =50%统一换算到Jc1 =100%的额定容量Pn = Sn Cos = 38.60.4=15.44kWPe = n(Jc/Jc1)1/2Pn = 1(0.5/1)1/215.44 = 10.92 kWPjs = KxPe =0.3510.92 = 3.82kWQjs = Pjs tg=3.822.29 = 8.76 kvar(59)、钢筋弯曲机Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.33 = 0.9 kWQjs = Pjs tg=0.91.02 = 0.92 kvar(60)、备用Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.33 = 0.9 kWQjs = Pjs tg=0.91.02 = 0.92 kvar(61)、备用Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.351 = 1.5 kWQjs = Pjs tg=1.51.02 = 1.53 kvar(62)、碘钨灯Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.331 = 0.9 kWQjs = Pjs tg=0.91.02 = 0.92 kvar(63)、白炽灯Kx = 0.9 Cos = 0.9 tg = 0.48Pjs = 0.951 = 4.5 kWQjs = Pjs tg=4.50.48 = 2.18 kvar(64)、荧光灯Kx = 0.2 Cos = 0.8 tg = 0.75Pjs = 0.261.2 = 1.44 kWQjs = Pjs tg=1.440.75 = 1.08 kvar(65)、备用Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.331 = 0.9 kWQjs = Pjs tg=0.91.02 = 0.92 kvar(66)、空调Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.321 = 0.6 kWQjs = Pjs tg=0.61.02 = 0.61 kvar(67)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(2.2+1.5+3+0.33+0.99+12.14+11.25+0.9+1.5+3.82+3.96+1.2+0.9+3.82+0.99+0.9+11.25+1.5+0.33+12.14+1.5+1.5+1.2+3.96+9+4.5+0.9+1.92+1.8+1.5+3.82+2.7+1.2+0.9+11.25+1.5+0.99+0.33+3.82+0.9+12.14+1.5+3.96+1.2+1.5+0.99+1.5+1.5+0.33+12.14+3.82+0.9+11.25+3.96+1.2+1.5+0.9+3.82+0.9+0.9+1.5+0.9+4.5+1.44+0.9+0.6) = 185.02 kW总的无功功率Qjs = KxQjs =0.9(2.93+2.28+2.25+0.34+1.01+16.19+6.97+1.2+1.53+8.76+4.04+1.22+0.92+8.76+1.01+1.2+6.97+2.28+0.34+16.19+1.53+1.53+1.22+4.04+9.18+2.18+0.92+1.44+1.84+1.53+8.76+2.75+1.22+0.92+6.97+1.53+1.01+0.34+8.76+1.2+16.19+2.28+4.04+1.22+1.53+1.01+1.53+2.28+0.34+16.19+8.76+1.2+6.97+4.04+1.22+1.53+0.92+8.76+0.92+0.92+1.53+0.92+2.18+1.08+0.92+0.61) = 210.895 kvar总的视在功率Sjs = ( Pjs2+Qjs2 )1/2 = (185.022+210.8952)1/2 = 280.552 kVA总的计算电流计算Ijs = Sjs/(1.732Ue) = 280.552/(1.7320.38) = 426.267 A3、1号楼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橡皮绝缘导线空气明敷,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 Cos = 0.6 tg = 1.33Ijs = Kx Pe /(1.732Ue Cos) = 111/(1.7320.380.6) = 27.86Aii)选择导线选择BX-410+16 ，空气明敷时其安全载流量为85A。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DZ5-50/3 ，其脱扣器整定电流值为Ir = 40A，漏电保护器为 DZ15L-100/30。(2)、灰浆搅拌机开关箱至灰浆搅拌机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 Cos = 0.55 tg = 1.52Ijs = Kx Pe /(1.732Ue Cos) = 13/(1.7320.380.55) = 8.29Aii)选择导线选择BX-410+16 ，空气明敷时其安全载流量为85A。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Hk1-15/3，漏电保护器为 DZ15L-100/30。(3)、真空吸水泵开关箱至真空吸水泵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 Cos = 0.8 tg = 0.75Ijs = Kx Pe /(1.732Ue Cos) = 14/(1.7320.380.8) = 7.6Aii)选择导线选择BX-410+16 ，空气明敷时其安全载流量为85A。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DZ5-20/3 ，其脱扣器整定电流值为Ir = 16A，漏电保护器为 DZ15L-100/30。(4)、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 Cos = 0.7 tg = 1.02Ijs = Kx Pe /(1.732Ue Cos) = 11.1/(1.7320.380.7) = 2.39Aii)选择导线选择BX-410+16 ，空气明敷时其安全载流量为85A。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DZ5-20/3 ，其脱扣器整定电流值为Ir = 16A，漏电保护器为 DZ15L-100/30。(5)、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 Cos = 0.7 tg = 1.02Ijs = Kx Pe /(1.732Ue Cos) = 11.1/(1.7320.380.7) = 2.39Aii)选择导线选择BX-410+16 ，空气明敷时其安全载流量为85A。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=2.393.00(台数)= 7.16 A。选择开关箱内隔离开关为DZ5-20/3 ，其脱扣器整定电流值为Ir = 16A，漏电保护器为 DZ15L-100/30。(6)、塔式起重机开关箱至塔式起重机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 Cos = 0.6 tg = 1.33Ijs = Kx Pe /(1.732Ue Cos) = 160.72/(1.7320.380.6) = 153.75Aii)选择导线选择BX-435+116 ，空气明敷时其安全载流量为180A。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DZ10-250/3 ，其脱扣器整定电流值为Ir = 200A，漏电保护器为 DZ10L-250/3。(7)、自落式混凝土搅拌机开关箱至自落式混凝土搅拌机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 Cos = 0.85 tg = 0.62Ijs = Kx Pe /(1.732Ue Cos) = 115/(1.7320.380.85) = 26.81Aii)选择导线选择BX-410+16 ，空气明敷时其安全载流量为85A。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DZ5-50/3 ，其脱扣器整定电流值为Ir = 40A，漏电保护器为 DZ15L-100/30。(8)、木工圆锯开关箱至木工圆锯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 Cos = 0.6 tg = 1.33Ijs = Kx Pe /(1.732Ue Cos) = 13/(1.7320.380.6) = 7.6Aii)选择导线选择BX-410+16 ，空气明敷时其安全载流量为85A。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Hk1-15/3，漏电保护器为 DZ15L-100/30。(9)、备用开关箱至备用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 Cos = 0.7 tg = 1.02Ijs = Kx Pe /(1.732Ue Cos) = 15/(1.7320.380.7) = 10.85Aii)选择导线选择BX-410+16 ，空气明敷时其安全载流量为85A。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DZ5-20/3 ，其脱扣器整定电流值为Ir = 16A，漏电保护器为 DZ15L-100/30。(10)、交流电焊机开关箱至交流电焊机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 Cos = 0.4 tg = 2.29Ijs = Kx Pe /(Ue Cos) = 110.92/(0.380.4) = 71.83Aii)选择导线选择BX-410+16 ，空气明敷时其安全载流量为85A。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DZ10-100/3 ，其脱扣器整定电流值为Ir = 80A，漏电保护器为 DZ15L-100/30。(11)、高压汞灯开关箱至高压汞灯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 Cos = 0.7 tg = 1.02Ijs = Kx Pe /(Ue Cos) = 13/(0.220.7) = 19.48Aii)选择导线选择BX-410+16 ，空气明敷时其安全载流量为85A。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2台用电器，开关的电流为Ir=19.482.00(台数)= 38.96 A。选择开关箱内隔离开关为DZ5-20/3 ，其脱扣器整定电流值为Ir = 16A，漏电保护器为 DZ15L-100/30。(12)、碘钨灯开关箱至碘钨灯导线截