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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(0.4/0.25)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
