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1、第一章 工程概况君临世纪广场（一期）工程建设单位为湛江百姓置业有限公司，设计单位是广东建筑艺术设计院有限公司，勘察单位是湛江市规划勘测设计院；监理单位是广东顺业石油化工建设监理有限公司。总承包单位是广东中南建设物业发展总公司。上级行政主管部门是湛江住房和城乡建设局；施工安全监督单位是湛江市建设工程安全监督管理站。本工程地下一层，建筑面积约55000m，框剪结构，总工期 550 日历天。施工内容包括土建、给排水等工程。本工程现场临时用电系统，根据JGJ46-88临时用电规范而设计。根据表内临时用电设备负荷统计，计算容量677.6KVA。（将视在负荷换算到有功负荷，功率因数取0.7后，有功负荷为4
2、74.32KW）。目前甲方提供500千瓦，基本满足施工用电要求；另自备120KW柴油发电机一台；为确保施工用电可靠，合理节约能源。在供电结构上合理安排。加强管理。建筑工地临时供水主要包括:生产用水、生活用水和消防用水三种。生产用水包括工程施工用水、施工机械用水。生活用水包括施工现场生活用水和生活区生活用水。根据临时用水计算，供水管径宜采用DN100。第二章 临时用电一、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
3、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QTZ8042.57297.52空压机KY-80302603插入式振捣器JQ221-21.188.84圆盘锯2.8822.45潜水泵2.220446搅拌机250L44167平板振捣器2F112.224.48电焊机XD1-185124489电焊机2XD1-2002124210双笼人货电梯3827611蛙式夯土机HW-321.511.512钢筋切断机7.543013钢筋弯曲机3412
4、14钢筋调直机7.521515柴油砼输送泵机HBT60C小计677.6三、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，采用导线穿钢管埋地敷设，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，两级防护。(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)、塔式起重机Kx = 0.7 Cos = 0.4 tg = 2.29将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 0.6
5、kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/20.6 = 0.76 kWPjs = KxPe =0.70.76 = 0.53kWQjs = Pjs tg=0.532.29 = 1.22 kvar(2)、空压机Kx = 0.6 Cos = 0.7 tg = 1.02将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 30kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/230 = 37.95 kWPjs = KxPe =0.637.95 = 22.77kWQjs = Pjs tg=22.771.02 = 23.23 kvar(3)、
6、插入式振捣器Kx = 0.6 Cos = 0.7 tg = 1.02将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 1.1kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/21.1 = 1.39 kWPjs = KxPe =0.61.39 = 0.83kWQjs = Pjs tg=0.831.02 = 0.85 kvar(4)、圆盘锯Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0.62.8 = 1.68 kWQjs = Pjs tg=1.681.02 = 1.71 kvar(5)、潜水泵Kx = 0.6 Cos = 0.7 tg =
7、 1.02Pjs = 0.68.8 = 5.28 kWQjs = Pjs tg=5.281.02 = 5.39 kvar(6)、搅拌机Kx = 0.6 Cos = 0.7 tg = 1.02将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 4kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/24 = 5.06 kWPjs = KxPe =0.65.06 = 3.04kWQjs = Pjs tg=3.041.02 = 3.1 kvar(7)、插入式振捣器Kx = 0.6 Cos = 0.7 tg = 1.02将Jc =40%统一换算到Jc1 =25%的额定容量
8、Pn = 1.1kWPe = n(Jc/Jc1)1/2Pn = 2(0.4/0.25)1/21.1 = 2.78 kWPjs = KxPe =0.62.78 = 1.67kWQjs = Pjs tg=1.671.02 = 1.7 kvar(8)、平板振捣器Kx = 0.6 Cos = 0.7 tg = 1.02将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 2.2kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/22.2 = 2.78 kWPjs = KxPe =0.62.78 = 1.67kWQjs = Pjs tg=1.671.02 = 1.7 kva
9、r(9)、电焊机Kx = 0.6 Cos = 0.7 tg = 1.02将Jc =40%统一换算到Jc1 =25%的额定容量Pn = Sn Cos = 120.7=8.4kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/28.4 = 10.63 kWPjs = KxPe =0.610.63 = 6.38kWQjs = Pjs tg=6.381.02 = 6.5 kvar(10)、圆盘锯Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0.62.8 = 1.68 kWQjs = Pjs tg=1.681.02 = 1.71 kvar(11)、潜水泵Kx
10、= 0.6 Cos = 0.7 tg = 1.02Pjs = 0.64.4 = 2.64 kWQjs = Pjs tg=2.641.02 = 2.69 kvar(12)、塔式起重机Kx = 0.7 Cos = 0.4 tg = 2.29将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 0.6kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/20.6 = 0.76 kWPjs = KxPe =0.70.76 = 0.53kWQjs = Pjs tg=0.532.29 = 1.22 kvar(13)、搅拌机Kx = 0.6 Cos = 0.7 tg = 1.02
11、将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 4kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/24 = 5.06 kWPjs = KxPe =0.65.06 = 3.04kWQjs = Pjs tg=3.041.02 = 3.1 kvar(14)、插入式振捣器Kx = 0.6 Cos = 0.7 tg = 1.02将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 1.1kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/21.1 = 1.39 kWPjs = KxPe =0.61.39 = 0.83kWQjs = P
12、js tg=0.831.02 = 0.85 kvar(15)、潜水泵Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0.64.4 = 2.64 kWQjs = Pjs tg=2.641.02 = 2.69 kvar(16)、塔式起重机Kx = 0.7 Cos = 0.4 tg = 2.29将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 0.6kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/20.6 = 0.76 kWPjs = KxPe =0.70.76 = 0.53kWQjs = Pjs tg=0.532.29 = 1.22 kva
13、r(17)、插入式振捣器Kx = 0.6 Cos = 0.7 tg = 1.02将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 1.1kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/21.1 = 1.39 kWPjs = KxPe =0.61.39 = 0.83kWQjs = Pjs tg=0.831.02 = 0.85 kvar(18)、电焊机Kx = 0.6 Cos = 0.7 tg = 1.02将Jc =40%统一换算到Jc1 =25%的额定容量Pn = Sn Cos = 120.7=8.4kWPe = n(Jc/Jc1)1/2Pn = 1(0.4
14、/0.25)1/28.4 = 10.63 kWPjs = KxPe =0.610.63 = 6.38kWQjs = Pjs tg=6.381.02 = 6.5 kvar(19)、电焊机2Kx = 0.6 Cos = 0.7 tg = 1.02将Jc =40%统一换算到Jc1 =25%的额定容量Pn = Sn Cos = 210.7=14.7kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/214.7 = 18.59 kWPjs = KxPe =0.618.59 = 11.16kWQjs = Pjs tg=11.161.02 = 11.38 kvar(20)、双笼人货电梯
15、Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0.638 = 22.8 kWQjs = Pjs tg=22.81.02 = 23.26 kvar(21)、塔式起重机Kx = 0.7 Cos = 0.4 tg = 2.29将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 0.6kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/20.6 = 0.76 kWPjs = KxPe =0.70.76 = 0.53kWQjs = Pjs tg=0.532.29 = 1.22 kvar(22)、搅拌机Kx = 0.6 Cos = 0.7 tg = 1
16、.02将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 4kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/24 = 5.06 kWPjs = KxPe =0.65.06 = 3.04kWQjs = Pjs tg=3.041.02 = 3.1 kvar(23)、蛙式夯土机Kx = 0.5 Cos = 0.55 tg = 1.52Pjs = 0.51.5 = 0.75 kWQjs = Pjs tg=0.751.52 = 1.14 kvar(24)、插入式振捣器Kx = 0.6 Cos = 0.7 tg = 1.02将Jc =40%统一换算到Jc1 =25%的额
17、定容量Pn = 1.1kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/21.1 = 1.39 kWPjs = KxPe =0.61.39 = 0.83kWQjs = Pjs tg=0.831.02 = 0.85 kvar(25)、电焊机Kx = 0.6 Cos = 0.7 tg = 1.02将Jc =40%统一换算到Jc1 =25%的额定容量Pn = Sn Cos = 120.7=8.4kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/28.4 = 10.63 kWPjs = KxPe =0.610.63 = 6.38kWQjs = Pjs t
18、g=6.381.02 = 6.5 kvar(26)、圆盘锯Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0.65.6 = 3.36 kWQjs = Pjs tg=3.361.02 = 3.43 kvar(27)、空压机Kx = 0.6 Cos = 0.7 tg = 1.02将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 30kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/230 = 37.95 kWPjs = KxPe =0.637.95 = 22.77kWQjs = Pjs tg=22.771.02 = 23.23 kvar(28
19、)、搅拌机Kx = 0.6 Cos = 0.7 tg = 1.02将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 4kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/24 = 5.06 kWPjs = KxPe =0.65.06 = 3.04kWQjs = Pjs tg=3.041.02 = 3.1 kvar(29)、双笼人货电梯Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0.638 = 22.8 kWQjs = Pjs tg=22.81.02 = 23.26 kvar(30)、平板振捣器Kx = 0.6 Cos = 0.7 tg
20、= 1.02将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 2.2kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/22.2 = 2.78 kWPjs = KxPe =0.62.78 = 1.67kWQjs = Pjs tg=1.671.02 = 1.7 kvar(31)、潜水泵Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0.611 = 6.6 kWQjs = Pjs tg=6.61.02 = 6.73 kvar(32)、圆盘锯Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0.62.8 = 1.68 kWQjs
21、 = Pjs tg=1.681.02 = 1.71 kvar(33)、塔式起重机Kx = 0.7 Cos = 0.4 tg = 2.29将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 0.6kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/20.6 = 0.76 kWPjs = KxPe =0.70.76 = 0.53kWQjs = Pjs tg=0.532.29 = 1.22 kvar(34)、电焊机2Kx = 0.6 Cos = 0.7 tg = 1.02将Jc =40%统一换算到Jc1 =25%的额定容量Pn = Sn Cos = 210.7=14.
22、7kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/214.7 = 18.59 kWPjs = KxPe =0.618.59 = 11.16kWQjs = Pjs tg=11.161.02 = 11.38 kvar(35)、电焊机Kx = 0.6 Cos = 0.7 tg = 1.02将Jc =40%统一换算到Jc1 =25%的额定容量Pn = Sn Cos = 120.7=8.4kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/28.4 = 10.63 kWPjs = KxPe =0.610.63 = 6.38kWQjs = Pjs tg=6.
23、381.02 = 6.5 kvar(36)、潜水泵Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0.611 = 6.6 kWQjs = Pjs tg=6.61.02 = 6.73 kvar(37)、钢筋切断机Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0.615 = 9 kWQjs = Pjs tg=91.02 = 9.18 kvar(38)、钢筋弯曲机Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0.66 = 3.6 kWQjs = Pjs tg=3.61.02 = 3.67 kvar(39)、钢筋调直机Kx = 0.6 C
24、os = 0.7 tg = 1.02Pjs = 0.67.5 = 4.5 kWQjs = Pjs tg=4.51.02 = 4.59 kvar(40)、塔式起重机Kx = 0.7 Cos = 0.4 tg = 2.29将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 0.6kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/20.6 = 0.76 kWPjs = KxPe =0.70.76 = 0.53kWQjs = Pjs tg=0.532.29 = 1.22 kvar(41)、钢筋切断机Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0
25、.615 = 9 kWQjs = Pjs tg=91.02 = 9.18 kvar(42)、钢筋弯曲机Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0.66 = 3.6 kWQjs = Pjs tg=3.61.02 = 3.67 kvar(43)、钢筋调直机Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0.67.5 = 4.5 kWQjs = Pjs tg=4.51.02 = 4.59 kvar(44)、潜水泵Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0.64.4 = 2.64 kWQjs = Pjs tg=2.641.02
26、 = 2.69 kvar(45)、圆盘锯Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0.65.6 = 3.36 kWQjs = Pjs tg=3.361.02 = 3.43 kvar(46)、插入式振捣器Kx = 0.6 Cos = 0.7 tg = 1.02将Jc =40%统一换算到Jc1 =25%的额定容量Pn = 1.1kWPe = n(Jc/Jc1)1/2Pn = 2(0.4/0.25)1/21.1 = 2.78 kWPjs = KxPe =0.62.78 = 1.67kWQjs = Pjs tg=1.671.02 = 1.7 kvar(47)总的计算负荷计算，
27、总箱同期系数取 Kx = 0.75总的有功功率Pjs = KxPjs = 0.75(0.53+22.77+0.83+1.68+5.28+3.04+1.67+1.67+6.38+1.68+2.64+0.53+3.04+0.83+2.64+0.53+0.83+6.38+11.16+22.8+0.53+3.04+0.75+0.83+6.38+3.36+22.77+3.04+22.8+1.67+6.6+1.68+0.53+11.16+6.38+6.6+9+3.6+4.5+0.53+9+3.6+4.5+2.64+3.36+1.67) = 178.058 kW总的无功功率Qjs = KxQjs =0.75
28、(1.22+23.23+0.85+1.71+5.39+3.1+1.7+1.7+6.5+1.71+2.69+1.22+3.1+0.85+2.69+1.22+0.85+6.5+11.38+23.26+1.22+3.1+1.14+0.85+6.5+3.43+23.23+3.1+23.26+1.7+6.73+1.71+1.22+11.38+6.5+6.73+9.18+3.67+4.59+1.22+9.18+3.67+4.59+2.69+3.43+1.7) = 184.973 kvar总的视在功率Sjs = ( Pjs2+Qjs2 )1/2 = (178.0582+184.9732)1/2 = 256.
29、748 kVA总的计算电流计算Ijs = Sjs/(1.732Ue) = 256.748/(1.7320.38) = 390.1 A3、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，由于这部分距离较短，因此不考虑电压降，只按安全载流量选择导线截面。(1)、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（开关箱以下机械启动后需要系数取1）:i)计算电流Kx = 1
30、 Cos = 0.4 tg = 2.29Ijs = Kx Pe /(1.732Ue Cos) = 10.76/(1.7320.380.4) = 2.88Aii)选择导线选择BX-416+110 ，空气明敷时其安全载流量为110A。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开关为DZ5-20/3 ，其脱扣器整定电流值为Ir = 16A。漏电保护器为 DZ10L-100/3。(2)、空压机开关箱至空压机导线截面及开关箱内电气设备选择（开关箱以下机械启动后需要系数取1）:i)计算电流Kx = 1 Cos = 0.7 tg = 1.02Ijs = Kx
31、 Pe /(1.732Ue Cos) = 137.95/(1.7320.380.7) = 82.37Aii)选择导线选择BX-416+110 ，空气明敷时其安全载流量为110A。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-100/3。(3)、插入式振捣器开关箱至插入式振捣器导线截面及开关箱内电气设备选择（开关箱以下机械启动后需要系数取1）:i)计算电流Kx = 1 Cos = 0.7 tg = 1.02Ijs = Kx Pe /(1.732Ue Cos
32、) = 11.39/(1.7320.380.7) = 3.02Aii)选择导线选择BX-416+110 ，空气明敷时其安全载流量为110A。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开关为DZ5-20/3 ，其脱扣器整定电流值为Ir = 16A。漏电保护器为 DZ10L-100/3。(4)、圆盘锯开关箱至圆盘锯导线截面及开关箱内电气设备选择（开关箱以下机械启动后需要系数取1）:i)计算电流Kx = 1 Cos = 0.7 tg = 1.02Ijs = KxPe /(1.732Ue Cos) = 12.8/(1.7320.380.7) = 6.0
33、8Aii)选择导线选择BX-416+110 ，空气明敷时其安全载流量为110A。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开关为DZ5-20/3 ，其脱扣器整定电流值为Ir = 16A。漏电保护器为 DZ10L-100/3。(5)、潜水泵开关箱至潜水泵导线截面及开关箱内电气设备选择（开关箱以下机械启动后需要系数取1）:i)计算电流Kx = 1 Cos = 0.7 tg = 1.02Ijs = KxPe /(1.732Ue Cos) = 12.2/(1.7320.380.7) = 4.78Aii)选择导线选择BX-416+110 ，空气明敷时其安
34、全载流量为110A。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4台机械，开关的电流为Ir=4.784.00(台数)= 19.10 A。选择开关箱内开关为DZ5-50/3 ，其脱扣器整定电流值为Ir = 40A。漏电保护器为 DZ10L-100/3。(6)、搅拌机开关箱至搅拌机导线截面及开关箱内电气设备选择（开关箱以下机械启动后需要系数取1）:i)计算电流Kx = 1 Cos = 0.7 tg = 1.02Ijs = Kx Pe /(1.732Ue Cos) = 15.06/(1.7320.380.7) = 10.98Aii)选择导线选择BX-4
35、16+110 ，空气明敷时其安全载流量为110A。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开关为DZ5-20/3 ，其脱扣器整定电流值为Ir = 16A。漏电保护器为 DZ10L-100/3。(7)、插入式振捣器开关箱至插入式振捣器导线截面及开关箱内电气设备选择（开关箱以下机械启动后需要系数取1）:i)计算电流Kx = 1 Cos = 0.7 tg = 1.02Ijs = Kx Pe /(1.732Ue Cos) = 12.78/(1.7320.380.7) = 6.04Aii)选择导线选择BX-416+110 ，空气明敷时其安全载流量为11
36、0A。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台机械，开关的电流为Ir=6.042.00(台数)= 12.08 A。选择开关箱内开关为DZ5-20/3 ，其脱扣器整定电流值为Ir = 16A。漏电保护器为 DZ10L-100/3。(8)、平板振捣器开关箱至平板振捣器导线截面及开关箱内电气设备选择（开关箱以下机械启动后需要系数取1）:i)计算电流Kx = 1 Cos = 0.7 tg = 1.02Ijs = Kx Pe /(1.732Ue Cos) = 12.78/(1.7320.380.7) = 6.04Aii)选择导线选择BX-416+1
37、10 ，空气明敷时其安全载流量为110A。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开关为DZ5-20/3 ，其脱扣器整定电流值为Ir = 16A。漏电保护器为 DZ10L-100/3。(9)、电焊机开关箱至电焊机导线截面及开关箱内电气设备选择（开关箱以下机械启动后需要系数取1）:i)计算电流Kx = 1 Cos = 0.7 tg = 1.02Ijs = Kx Pe /(1.732Ue Cos) = 110.63/(1.7320.380.7) = 23.06Aii)选择导线选择BX-416+110 ，空气明敷时其安全载流量为110A。室外架空铜
38、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开关为DZ5-50/3 ，其脱扣器整定电流值为Ir = 40A。漏电保护器为 DZ10L-100/3。(10)、圆盘锯开关箱至圆盘锯导线截面及开关箱内电气设备选择（开关箱以下机械启动后需要系数取1）:i)计算电流Kx = 1 Cos = 0.7 tg = 1.02Ijs = KxPe /(1.732Ue Cos) = 12.8/(1.7320.380.7) = 6.08Aii)选择导线选择BX-416+110 ，空气明敷时其安全载流量为110A。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)
39、选择电气设备选择开关箱内开关为DZ5-20/3 ，其脱扣器整定电流值为Ir = 16A。漏电保护器为 DZ10L-100/3。(11)、潜水泵开关箱至潜水泵导线截面及开关箱内电气设备选择（开关箱以下机械启动后需要系数取1）:i)计算电流Kx = 1 Cos = 0.7 tg = 1.02Ijs = KxPe /(1.732Ue Cos) = 12.2/(1.7320.380.7) = 4.78Aii)选择导线选择BX-416+110 ，空气明敷时其安全载流量为110A。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台机械，开关的电流为Ir=4.7
40、82.00(台数)= 9.55 A。选择开关箱内开关为DZ5-20/3 ，其脱扣器整定电流值为Ir = 16A。漏电保护器为 DZ10L-100/3。(12)、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（开关箱以下机械启动后需要系数取1）:i)计算电流Kx = 1 Cos = 0.4 tg = 2.29Ijs = Kx Pe /(1.732Ue Cos) = 10.76/(1.7320.380.4) = 2.88Aii)选择导线选择BX-416+110 ，空气明敷时其安全载流量为110A。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
41、内开关为DZ5-20/3 ，其脱扣器整定电流值为Ir = 16A。漏电保护器为 DZ10L-100/3。(13)、搅拌机开关箱至搅拌机导线截面及开关箱内电气设备选择（开关箱以下机械启动后需要系数取1）:i)计算电流Kx = 1 Cos = 0.7 tg = 1.02Ijs = Kx Pe /(1.732Ue Cos) = 15.06/(1.7320.380.7) = 10.98Aii)选择导线选择BX-416+110 ，空气明敷时其安全载流量为110A。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开关为DZ5-20/3 ，其脱扣器整定电流值为Ir
42、 = 16A。漏电保护器为 DZ10L-100/3。(14)、插入式振捣器开关箱至插入式振捣器导线截面及开关箱内电气设备选择（开关箱以下机械启动后需要系数取1）:i)计算电流Kx = 1 Cos = 0.7 tg = 1.02Ijs = Kx Pe /(1.732Ue Cos) = 11.39/(1.7320.380.7) = 3.02Aii)选择导线选择BX-416+110 ，空气明敷时其安全载流量为110A。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开关为DZ5-20/3 ，其脱扣器整定电流值为Ir = 16A。漏电保护器为 DZ10L-1
43、00/3。(15)、潜水泵开关箱至潜水泵导线截面及开关箱内电气设备选择（开关箱以下机械启动后需要系数取1）:i)计算电流Kx = 1 Cos = 0.7 tg = 1.02Ijs = KxPe /(1.732Ue Cos) = 12.2/(1.7320.380.7) = 4.78Aii)选择导线选择BX-416+110 ，空气明敷时其安全载流量为110A。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台机械，开关的电流为Ir=4.782.00(台数)= 9.55 A。选择开关箱内开关为DZ5-20/3 ，其脱扣器整定电流值为Ir = 16A。漏电保护器为 DZ10L-100/3。(16)、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（开关箱以下机械启动后需要系数取1）:i)计算电流Kx = 1 Cos = 0.4 tg =
