住宅楼施工临时用电方案#黑龙江#负荷计算.doc
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1、施工临时用电方案及计算书某某小区8楼工程; 工程建设地点:八女投江广场东侧;属于剪力墙结构; 地上27层; 地下1层;建筑高度:76.7m;标准层层高:2.9m ;总建筑面积:22842平方米;总工期:579天。本工程由某某房地产开发公司投资建设,哈尔滨中建建筑设计有限公司设计,牡丹江明月岩土工程有限公司地质勘察,河北中基华工程项目管理有限公司监理,牡丹江建工集团有限公司组织施工;由杨作明担任项目经理,吕忠义担任技术负责人。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-
2、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 QTZ40c 48 1 48 2 高压汞灯 3 1 3 3 碘钨灯 1 1 1 4 SC200/5 碘钨灯 1 1 1 6 碘钨灯 0.5 1 0.5 7 JW8 碘钨灯 0.5 1 0.5 9 碘钨灯 0.5 1 0.5 10 钢筋调直机 GT6/8 5.5 1 5.5 11 钢筋切断机 QJ40-1
3、5.5 1 5.5 12 钢筋弯曲机 WJ40 3 1 3 13 套丝机 TQ-3 1 1 1 14 碘钨灯 0.5 1 0.5 15 碘钨灯 0.5 1 0.5 16 插入式振动器 ZX25 0.8 1 0.8 17 插入式振动器 ZX50 1.1 1 1.1 18 平板式振动器 ZB11 1.1 1 1.1 19 木工圆锯 MJ21 交流电焊机 BX3-200-2 23.4 1 23.4 22 直流电焊机 AX5-23 荧光灯 0.1 1 0.1 24 荧光灯 0.1 1 0.1 25 荧光灯 0.1 1 0.1 26 荧光灯 0.1 1 0.1 27 荧光灯 0.1 1 0.1 28 荧
4、光灯 0.1 1 0.1 29 荧光灯 0.1 1 0.1 30 荧光灯 0.1 1 0.1 31 荧光灯 0.1 1 0.1 32 荧光灯 0.1 1 0.1 33 荧光灯 0.1 1 0.1 34 白炽灯 0.1 1 0.1 35 白炽灯 0.1 1 0.1 36 白炽灯 0.1 1 0.1 37 白炽灯 0.1 1 0.1 -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,总箱进线采用导线穿硬塑料管敷设,干线采用穿硬塑料管敷设
5、,用电器导线采用穿硬塑料管敷设。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)、塔式起重机Kx = 0.85 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 =0.8560.72 = 51.61kWQjs = Pjs tg=51.611.33 = 68.81 kvar(2)、高压汞灯Kx = 0.6
6、Cos = 0.7 tg = 1.02Pjs = 0.631.1 = 1.98 kWQjs = Pjs tg=1.981.02 = 2.02 kvar(3)、碘钨灯Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.311 = 0.3 kWQjs = Pjs tg=0.31.02 = 0.31 kvar(4)、建筑施工外用电梯Kx = 0.85 Cos = 0.6 tg = 1.33Pjs = 0.8515 = 12.75 kWQjs = Pjs tg=12.751.33 = 17 kvar(5)、碘钨灯Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0
7、.311 = 0.3 kWQjs = Pjs tg=0.31.02 = 0.31 kvar(6)、碘钨灯Kx = 0.6 Cos = 0.6 tg = 1.33Pjs = 0.60.51 = 0.3 kWQjs = Pjs tg=0.31.33 = 0.4 kvar(7)、强制式混凝土搅拌机Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.7511 = 8.25 kWQjs = Pjs tg=8.250.62 = 5.11 kvar(8)、碘钨灯Kx = 0.6 Cos = 0.6 tg = 1.33Pjs = 0.60.51 = 0.3 kWQjs = Pjs tg
8、=0.31.33 = 0.4 kvar(9)、碘钨灯Kx = 0.6 Cos = 0.6 tg = 1.33Pjs = 0.60.51 = 0.3 kWQjs = Pjs tg=0.31.33 = 0.4 kvar(10)、钢筋调直机Kx = 0.65 Cos = 0.7 tg = 1.02Pjs = 0.655.5 = 3.575 kWQjs = Pjs tg=3.581.02 = 3.65 kvar(11)、钢筋切断机Kx = 0.65 Cos = 0.7 tg = 1.02Pjs = 0.655.5 = 3.575 kWQjs = Pjs tg=3.581.02 = 3.65 kvar(
9、12)、钢筋弯曲机Kx = 0.65 Cos = 0.7 tg = 1.02Pjs = 0.653 = 1.95 kWQjs = Pjs tg=1.951.02 = 1.99 kvar(13)、套丝机Kx = 0.3 Cos = 0.6 tg = 1.33Pjs = 0.31 = 0.3 kWQjs = Pjs tg=0.31.33 = 0.4 kvar(14)、碘钨灯Kx = 0.6 Cos = 0.6 tg = 1.33Pjs = 0.60.51 = 0.3 kWQjs = Pjs tg=0.31.33 = 0.4 kvar(15)、碘钨灯Kx = 0.6 Cos = 0.6 tg = 1
10、.33Pjs = 0.60.51 = 0.3 kWQjs = Pjs tg=0.31.33 = 0.4 kvar(16)、插入式振动器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.30.8 = 0.24 kWQjs = Pjs tg=0.241.02 = 0.24 kvar(17)、插入式振动器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.31.1 = 0.33 kWQjs = Pjs tg=0.331.02 = 0.34 kvar(18)、平板式振动器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.31.1 = 0.
11、33 kWQjs = Pjs tg=0.331.02 = 0.34 kvar(19)、木工圆锯Kx = 0.65 Cos = 0.6 tg = 1.33Pjs = 0.653 = 1.95 kWQjs = Pjs tg=1.951.33 = 2.6 kvar(20)、100m高扬程水泵Kx = 0.75 Cos = 0.8 tg = 0.75Pjs = 0.7520 = 15 kWQjs = Pjs tg=150.75 = 11.25 kvar(21)、交流电焊机Kx = 0.5 Cos = 0.4 tg = 2.29将Jc =50%统一换算到Jc1 =100%的额定容量Pn = Sn Cos
12、 = 23.40.4=9.36kWPe = n(Jc/Jc1)1/2Pn = 1(0.5/1)1/29.36 = 6.62 kWPjs = KxPe =0.56.62 = 3.31kWQjs = Pjs tg=3.312.29 = 7.58 kvar(22)、直流电焊机Kx = 0.7 Cos = 0.6 tg = 1.33将Jc =50%统一换算到Jc1 =100%的额定容量Pn = 26kWPe = n(Jc/Jc1)1/2Pn = 1(0.5/1)1/226 = 18.38 kWPjs = KxPe =0.718.38 = 12.87kWQjs = Pjs tg=12.871.33 =
13、17.16 kvar(23)、荧光灯Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.750.11.2 = 0.09 kWQjs = Pjs tg=0.090.62 = 0.06 kvar(24)、荧光灯Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.750.11.2 = 0.09 kWQjs = Pjs tg=0.090.62 = 0.06 kvar(25)、荧光灯Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.750.11.2 = 0.09 kWQjs = Pjs tg=0.090.62 = 0.06 kva
14、r(26)、荧光灯Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.750.11.2 = 0.09 kWQjs = Pjs tg=0.090.62 = 0.06 kvar(27)、荧光灯Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.750.11.2 = 0.09 kWQjs = Pjs tg=0.090.62 = 0.06 kvar(28)、荧光灯Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.750.11.2 = 0.09 kWQjs = Pjs tg=0.090.62 = 0.06 kvar(29)、荧光灯
15、Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.750.11.2 = 0.09 kWQjs = Pjs tg=0.090.62 = 0.06 kvar(30)、荧光灯Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.750.11.2 = 0.09 kWQjs = Pjs tg=0.090.62 = 0.06 kvar(31)、荧光灯Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.750.11.2 = 0.09 kWQjs = Pjs tg=0.090.62 = 0.06 kvar(32)、荧光灯Kx = 0.75
16、 Cos = 0.85 tg = 0.62Pjs = 0.750.11.2 = 0.09 kWQjs = Pjs tg=0.090.62 = 0.06 kvar(33)、荧光灯Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.750.11.2 = 0.09 kWQjs = Pjs tg=0.090.62 = 0.06 kvar(34)、白炽灯Kx = 1 Cos = 1 tg = 0Pjs = 10.11 = 0.1 kWQjs = Pjs tg=0.10 = 0 kvar(35)、白炽灯Kx = 1 Cos = 1 tg = 0Pjs = 10.11 = 0.1 k
17、WQjs = Pjs tg=0.10 = 0 kvar(36)、白炽灯Kx = 1 Cos = 1 tg = 0Pjs = 10.11 = 0.1 kWQjs = Pjs tg=0.10 = 0 kvar(37)、白炽灯Kx = 1 Cos = 1 tg = 0Pjs = 10.11 = 0.1 kWQjs = Pjs tg=0.10 = 0 kvar(38)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(51.61+1.98+0.3+12.75+0.3+0.3+8.25+0.3+0.3+3.58+3.58+1.95+0.3+0.3+0.3+0
18、.24+0.33+0.33+1.95+15+3.31+12.87+0.09+0.09+0.09+0.09+0.09+0.09+0.09+0.09+0.09+0.09+0.09+0.1+0.1+0.1+0.1) = 109.356 kW总的无功功率Qjs = KxQjs =0.9(68.81+2.02+0.31+17+0.31+0.4+5.11+0.4+0.4+3.65+3.65+1.99+0.4+0.4+0.4+0.24+0.34+0.34+2.6+11.25+7.58+17.16+0.06+0.06+0.06+0.06+0.06+0.06+0.06+0.06+0.06+0.06+0.06+0
19、+0+0+0) = 130.828 kvar总的视在功率Sjs = ( Pjs2+Qjs2 )1/2 = (109.3562+130.8282)1/2 = 170.513 kVA总的计算电流计算Ijs = Sjs/(1.732Ue) = 170.513/(1.7320.38) = 259.075 A3、1号干线(塔吊)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铝塑料绝缘导线穿硬塑料管敷设。(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
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