住宅楼施工临时用电方案#河北#负荷计算书.doc

施工临时用电方案计算书某某县某某乡民族小区1、2住宅楼工程； 工程建设地点:某某县某某乡某某村；属于砖混结构； 地上6层； 地下0层；建筑高度：17.15m；标准层层高：2.9m ；总建筑面积：6602.4平方米；总工期：273天。本工程由某某县某某乡某某村村民委员会投资建设，设计，地质勘察，监理，某某县建筑工程有限责任公司组织施工；由担任项目经理，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 QTZ31.5 19.7 1 19.7 2 蛙式夯土机 HW-32 1.5 1 1.5 3 蛙式夯土机 HW-32 1.5 1 1.5 4 卷扬机 JJK0.5 3 1 3 5 自落式混凝土搅拌机 JD200 7.5 1 7.5 6 插入式振动器 ZX25 0.8 1 0.8 7 插入式振动器 ZX35 0.8 1 0.8 8 插入式振动器 ZX25 0.8 1 0.8 9 灰浆搅拌机 UJ10 灰浆搅拌机 UJ11 钢筋调直机 GT4/14 4 1 4 12 交流电焊机 BX3-200-2 23.4 1 23.4 13 木工电刨 MIB2-80/1 0.7 1 0.7 14 木工圆锯 MJ15 自落式混凝土搅拌机 JD200 7.5 1 7.5 16 钢筋切断机 QJ32-1 3 1 3 17 高压汞灯 3 1 3 18 荧光灯 0.2 1 0.2 19 高压钠灯 1 1 1 20 高压汞灯 1 1 1 21 荧光灯 0.2 1 0.2 22 荧光灯 0.2 1 0.2 23 荧光灯 0.2 1 0.2 24 白炽灯 1 1 1 25 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R4。2、确定用电负荷:(1)、塔式起重机Kx = 0.8 Cos = 0.8 tg = 0.75将Jc =2100%统一换算到Jc1 =2000%的额定容量Pn = 19.7kWPe = n×(Jc/Jc1)1/2×Pn = 1×(21/20)1/2×19.7 = 20.19 kWPjs = Kx×Pe =0.8×20.19 = 16.15kWQjs = Pjs× tg=16.15×0.75 = 12.11 kvar(2)、蛙式夯土机Kx = 0.5 Cos = 0.55 tg = 1.52Pjs = 0.5×1.5 = 0.75 kWQjs = Pjs× tg=0.75×1.52 = 1.14 kvar(3)、蛙式夯土机Kx = 0.5 Cos = 0.55 tg = 1.52Pjs = 0.5×1.5 = 0.75 kWQjs = Pjs× tg=0.75×1.52 = 1.14 kvar(4)、卷扬机Kx = 0.85 Cos = 0.6 tg = 1.33Pjs = 0.85×3 = 2.55 kWQjs = Pjs× tg=2.55×1.33 = 3.4 kvar(5)、自落式混凝土搅拌机Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.75×7.5 = 5.625 kWQjs = Pjs× tg=5.62×0.62 = 3.49 kvar(6)、插入式振动器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.3×0.8 = 0.24 kWQjs = Pjs× tg=0.24×1.02 = 0.24 kvar(7)、插入式振动器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.3×0.8 = 0.24 kWQjs = Pjs× tg=0.24×1.02 = 0.24 kvar(8)、插入式振动器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.3×0.8 = 0.24 kWQjs = Pjs× tg=0.24×1.02 = 0.24 kvar(9)、灰浆搅拌机Kx = 0.5 Cos = 0.55 tg = 1.52Pjs = 0.5×3 = 1.5 kWQjs = Pjs× tg=1.5×1.52 = 2.28 kvar(10)、灰浆搅拌机Kx = 0.5 Cos = 0.55 tg = 1.52Pjs = 0.5×3 = 1.5 kWQjs = Pjs× tg=1.5×1.52 = 2.28 kvar(11)、钢筋调直机Kx = 0.65 Cos = 0.7 tg = 1.02Pjs = 0.65×4 = 2.6 kWQjs = Pjs× tg=2.6×1.02 = 2.65 kvar(12)、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 = 23.4×0.4=9.36kWPe = n×(Jc/Jc1)1/2×Pn = 1×(0.5/1)1/2×9.36 = 6.62 kWPjs = Kx×Pe =0.5×6.62 = 3.31kWQjs = Pjs× tg=3.31×2.29 = 7.58 kvar(13)、木工电刨Kx = 0.65 Cos = 0.6 tg = 1.33Pjs = 0.65×0.7 = 0.455 kWQjs = Pjs× tg=0.45×1.33 = 0.61 kvar(14)、木工圆锯Kx = 0.65 Cos = 0.6 tg = 1.33Pjs = 0.65×3 = 1.95 kWQjs = Pjs× tg=1.95×1.33 = 2.6 kvar(15)、自落式混凝土搅拌机Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.75×7.5 = 5.625 kWQjs = Pjs× tg=5.62×0.62 = 3.49 kvar(16)、钢筋切断机Kx = 0.65 Cos = 0.7 tg = 1.02Pjs = 0.65×3 = 1.95 kWQjs = Pjs× tg=1.95×1.02 = 1.99 kvar(17)、高压汞灯Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0.6×3×1.1 = 1.98 kWQjs = Pjs× tg=1.98×1.02 = 2.02 kvar(18)、荧光灯Kx = 0.2 Cos = 0.8 tg = 0.75Pjs = 0.2×0.2×1.2 = 0.048 kWQjs = Pjs× tg=0.05×0.75 = 0.04 kvar(19)、高压钠灯Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0.6×1×1.1 = 0.66 kWQjs = Pjs× tg=0.66×1.02 = 0.67 kvar(20)、高压汞灯Kx = 0.6 Cos = 0.7 tg = 1.02Pjs = 0.6×1×1.1 = 0.66 kWQjs = Pjs× tg=0.66×1.0