鄢陵县中心医院整体迁建项目二期护理楼临时用电组织设计.docx

鄢陵县中心医院整体迁建项目二期护理楼工程临时用电组织设计 编制： 审核： 审批： 河南矿业建设（集团）有限责任公司鄢陵县工程项目部二0一六年三月十六日目 录一、工程概况3二、编制依据4三、现场勘测资料4四、初步设计4五、临电计算及设备选择41、参数设置42、用电负荷73、导线及开关箱内电气设备选择274、总箱的进线、开关箱内电气设备及变压器选择39六、施工用电配电系统图及平面布置图401、配电系统图402、 配电平面布置图41（见平面布置图）41七、接地设计421、各种接地装置设置和接地电阻值要求422、接地装置位置的确定433、接地装置的确定43八、防雷设计441、防雷部位的确定442、防雷装置的设置45九、防护措施471、外电防护措施472、易燃易爆物防护措施493、腐蚀介质防护措施494、机械损伤防护措施495、电磁感应防护措施496、静电防护措施49十、安全用电和电气防火措施501、安全用电技术措施502、安全用电组织措施503、电气防火技术措施要点514、建立电气防火教育制度525、环境保护与职工健康安全52一、工程概况序号项 目内 容1工程名称鄢陵县中心医院整体迁建项目二期护理楼2工程地点鄢陵县金瑞大道与梅里路交叉口3施工单位河南矿业建设（集团）有限责任公司4建设单位鄢陵县中心医院5监理单位河南宏业建设管理有限公司6建筑概况建筑功能养老护理建筑面积53115.79建筑高度23.46m建筑层数7层建筑层高3.6m/3.1m7结构概况基础结构形式条基主体结构形式剪力墙屋盖结构形式现浇板二、编制依据1、施工现场临时用电安全技术规范JGJ46-20052、低压配电设计规范GB50054-20113、建筑工程施工现场供电安全规范GB50194-20144、通用用电设备配电设计规范GB50055-20115、工业与民用配电设计手册第三版6、建筑施工安全检查标准JGJ59-2011三、现场勘测资料现场勘测应包括以下内容：1、 在建工程的位置及其周边空间分布情况。2、 本工程由市政供电，甲方现场已提供变压器（500KW），我单位已提前做好用电申请。 3、经与甲方沟通，地表以下无各种管道、线缆的敷设。四、初步设计1、施工现场临时用电安全技术规范（JGJ46-2005）总则中以强制性条文规定，施工现场必须采用三级配电系统、必须采用TN-S接零保护系统。2、现场采用380V低压供电，设一配电总箱，采用TN-S系统供电。3、布置位置及线路走向参见临时配电系统图，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。5、本方案仅供1#、5#、6#、7#楼使用。五、临电计算及设备选择1、参数设置1.1、总箱参数用电接驳方式由变压器接入总配电箱编号总箱 A总配电箱距接驳点布线距离Lo(m)100总配电箱的同期使用系数Kx0.7分配电箱数量4导线线芯材料铝线总配电箱进线敷设方式直接埋地分配电箱进线敷设方式直接埋地设备电线敷设方式直接埋地干线允许电压降%51.2、分箱参数1.3、用电设备参1.4、临电设备计算及配置2、用电负荷1、1号分箱设备用电负荷(1)塔式起重机Kx = 0.7，Cos = 0.65，tg = (1 - Cos2)0.5/ Cos = (1 - 0.652)0.5 / 0.65 = 1.17Pe = n P (e/)0.5 = 1.00 27.50 (0.40 / 0.25)0.5 = 34.79kWIj1 = Kx Pe / (1.732 Ue cos) = 0.70 34.79 1000 / (1.732 380 0.65) = 56.92APjs = Kx Pe = 0.70 34.79 = 24.35kWQjs = Pjs tg = 24.35 1.17 = 28.47kvA(2)钢筋调直切断机Kx = 0.2，Cos = 0.65，tg = (1 - Cos2)0.5/ Cos = (1 - 0.652)0.5 / 0.65 = 1.17Pe = n P (e/)0.5 = 1.00 5.50 (0.40 / 0.40)0.5 = 5.50kWIj1 = Kx Pe / (1.732 Ue cos) = 0.20 5.50 1000 / (1.732 380 0.65) = 2.57APjs = Kx Pe = 0.20 5.50 = 1.10kWQjs = Pjs tg = 1.10 1.17 = 1.29kvA(3)钢筋切断机Kx = 0.65，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 3.00 (0.40 / 0.40)0.5 = 3.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 3.00 1000 / (1.732 380 0.70) = 4.23APjs = Kx Pe = 0.65 3.00 = 1.95kWQjs = Pjs tg = 1.95 1.02 = 1.99kvA(4)钢筋弯曲机Kx = 0.65，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 3.00 (0.40 / 0.40)0.5 = 3.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 3.00 1000 / (1.732 380 0.70) = 4.23APjs = Kx Pe = 0.65 3.00 = 1.95kWQjs = Pjs tg = 1.95 1.02 = 1.99kvA(5)钢筋弯曲机Kx = 0.65，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 3.00 (0.40 / 0.40)0.5 = 3.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 3.00 1000 / (1.732 380 0.70) = 4.23APjs = Kx Pe = 0.65 3.00 = 1.95kWQjs = Pjs tg = 1.95 1.02 = 1.99kvA(6)木工圆锯Kx = 0.65，Cos = 0.6，tg = (1 - Cos2)0.5/ Cos = (1 - 0.62)0.5 / 0.6 = 1.33Pe = n P (e/)0.5 = 1.00 3.00 (0.40 / 0.40)0.5 = 3.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 3.00 1000 / (1.732 380 0.60) = 4.94APjs = Kx Pe = 0.65 3.00 = 1.95kWQjs = Pjs tg = 1.95 1.33 = 2.60kvA(7)钢筋套丝机Kx = 0.65，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 4.00 (0.40 / 0.40)0.5 = 4.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 4.00 1000 / (1.732 380 0.70) = 5.64APjs = Kx Pe = 0.65 4.00 = 2.60kWQjs = Pjs tg = 2.60 1.02 = 2.65kvA(8)对焊机Kx = 0.35，Cos = 0.6，tg = (1 - Cos2)0.5/ Cos = (1 - 0.62)0.5 / 0.6 = 1.33Pe = n P (e/)0.5 = 1.00 40.00 (0.20 / 1.00)0.5 = 17.89kWIj1 = Kx Pe / (1.732 Ue cos) = 0.35 17.89 1000 / (1.732 380 0.60) = 15.85APjs = Kx Pe = 0.35 17.89 = 6.26kWQjs = Pjs tg = 6.26 1.33 = 8.35kvA(9)插入式振动器Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 0.80 (0.40 / 0.40)0.5 = 0.80kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 0.80 1000 / (1.732 380 0.70) = 0.52APjs = Kx Pe = 0.30 0.80 = 0.24kWQjs = Pjs tg = 0.24 1.02 = 0.24kvA(10)插入式振动器Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 0.80 (0.40 / 0.40)0.5 = 0.80kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 0.80 1000 / (1.732 380 0.70) = 0.52APjs = Kx Pe = 0.30 0.80 = 0.24kWQjs = Pjs tg = 0.24 1.02 = 0.24kvA(11)高压钠灯Kx = 0.6，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 1.00 (0.40 / 0.40)0.5 = 1.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.60 1.00 1000 / (1.732 380 0.70) = 1.30APjs = Kx Pe = 0.60 1.00 = 0.60kWQjs = Pjs tg = 0.60 1.02 = 0.61kvA(12)高压钠灯Kx = 0.6，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 1.00 (0.40 / 0.40)0.5 = 1.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.60 1.00 1000 / (1.732 380 0.70) = 1.30APjs = Kx Pe = 0.60 1.00 = 0.60kWQjs = Pjs tg = 0.60 1.02 = 0.61kvA(13)1号分箱计算负荷用电设备同期使用系数Kx=0.70；Ijs = Kx Pe / (1.732 Ue Cos) = 0.70 77.77 1000 / (1.732 380 0.75) = 110.29A；同时要求分箱用电负荷不得小于分箱下用电设备最大计算负荷的1.1倍，故：Ijs = max110.29,1.1max(56.92,2.57,4.23,4.23,4.23,4.94,5.64,15.85,0.52,0.52,1.30,1.30,) = 110.29A2、2号分箱设备用电负荷(1)塔式起重机Kx = 0.7，Cos = 0.65，tg = (1 - Cos2)0.5/ Cos = (1 - 0.652)0.5 / 0.65 = 1.17Pe = n P (e/)0.5 = 1.00 27.50 (0.40 / 0.25)0.5 = 34.79kWIj1 = Kx Pe / (1.732 Ue cos) = 0.70 34.79 1000 / (1.732 380 0.65) = 56.92APjs = Kx Pe = 0.70 34.79 = 24.35kWQjs = Pjs tg = 24.35 1.17 = 28.47kvA(2)钢筋调直切断机Kx = 0.2，Cos = 0.65，tg = (1 - Cos2)0.5/ Cos = (1 - 0.652)0.5 / 0.65 = 1.17Pe = n P (e/)0.5 = 1.00 5.50 (0.40 / 0.40)0.5 = 5.50kWIj1 = Kx Pe / (1.732 Ue cos) = 0.20 5.50 1000 / (1.732 380 0.65) = 2.57APjs = Kx Pe = 0.20 5.50 = 1.10kWQjs = Pjs tg = 1.10 1.17 = 1.29kvA(3)钢筋切断机Kx = 0.65，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 3.00 (0.40 / 0.40)0.5 = 3.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 3.00 1000 / (1.732 380 0.70) = 4.23APjs = Kx Pe = 0.65 3.00 = 1.95kWQjs = Pjs tg = 1.95 1.02 = 1.99kvA(4)钢筋弯曲机Kx = 0.65，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 3.00 (0.40 / 0.40)0.5 = 3.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 3.00 1000 / (1.732 380 0.70) = 4.23APjs = Kx Pe = 0.65 3.00 = 1.95kWQjs = Pjs tg = 1.95 1.02 = 1.99kvA(5)钢筋弯曲机Kx = 0.2，Cos = 0.65，tg = (1 - Cos2)0.5/ Cos = (1 - 0.652)0.5 / 0.65 = 1.17Pe = n P (e/)0.5 = 1.00 3.00 (0.40 / 0.40)0.5 = 3.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.20 3.00 1000 / (1.732 380 0.65) = 1.40APjs = Kx Pe = 0.20 3.00 = 0.60kWQjs = Pjs tg = 0.60 1.17 = 0.70kvA(6)木工圆锯Kx = 0.65，Cos = 0.6，tg = (1 - Cos2)0.5/ Cos = (1 - 0.62)0.5 / 0.6 = 1.33Pe = n P (e/)0.5 = 1.00 3.00 (0.40 / 0.40)0.5 = 3.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 3.00 1000 / (1.732 380 0.60) = 4.94APjs = Kx Pe = 0.65 3.00 = 1.95kWQjs = Pjs tg = 1.95 1.33 = 2.60kvA(7)钢筋套丝机Kx = 0.2，Cos = 0.65，tg = (1 - Cos2)0.5/ Cos = (1 - 0.652)0.5 / 0.65 = 1.17Pe = n P (e/)0.5 = 1.00 4.00 (0.40 / 0.40)0.5 = 4.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.20 4.00 1000 / (1.732 380 0.65) = 1.87APjs = Kx Pe = 0.20 4.00 = 0.80kWQjs = Pjs tg = 0.80 1.17 = 0.94kvA(8)对焊机Kx = 0.35，Cos = 0.6，tg = (1 - Cos2)0.5/ Cos = (1 - 0.62)0.5 / 0.6 = 1.33Pe = n P (e/)0.5 = 1.00 40.00 (0.20 / 1.00)0.5 = 17.89kWIj1 = Kx Pe / (1.732 Ue cos) = 0.35 17.89 1000 / (1.732 380 0.60) = 15.85APjs = Kx Pe = 0.35 17.89 = 6.26kWQjs = Pjs tg = 6.26 1.33 = 8.35kvA(9)插入式振动器Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 0.80 (0.40 / 0.40)0.5 = 0.80kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 0.80 1000 / (1.732 380 0.70) = 0.52APjs = Kx Pe = 0.30 0.80 = 0.24kWQjs = Pjs tg = 0.24 1.02 = 0.24kvA(10)插入式振动器Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 0.80 (0.40 / 0.40)0.5 = 0.80kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 0.80 1000 / (1.732 380 0.70) = 0.52APjs = Kx Pe = 0.30 0.80 = 0.24kWQjs = Pjs tg = 0.24 1.02 = 0.24kvA(11)高压钠灯Kx = 0.6，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 1.00 (0.40 / 0.40)0.5 = 1.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.60 1.00 1000 / (1.732 380 0.70) = 1.30APjs = Kx Pe = 0.60 1.00 = 0.60kWQjs = Pjs tg = 0.60 1.02 = 0.61kvA(12)高压钠灯Kx = 0.6，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 1.00 (0.40 / 0.40)0.5 = 1.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.60 1.00 1000 / (1.732 380 0.70) = 1.30APjs = Kx Pe = 0.60 1.00 = 0.60kWQjs = Pjs tg = 0.60 1.02 = 0.61kvA(13)2号分箱计算负荷用电设备同期使用系数Kx=0.70；Ijs = Kx Pe / (1.732 Ue Cos) = 0.70 77.77 1000 / (1.732 380 0.75) = 110.29A；同时要求分箱用电负荷不得小于分箱下用电设备最大计算负荷的1.1倍，故：Ijs = max110.29,1.1max(56.92,2.57,4.23,4.23,1.40,4.94,1.87,15.85,0.52,0.52,1.30,1.30,) = 110.29A3、3号分箱设备用电负荷(1)塔式起重机Kx = 0.7，Cos = 0.65，tg = (1 - Cos2)0.5/ Cos = (1 - 0.652)0.5 / 0.65 = 1.17Pe = n P (e/)0.5 = 1.00 27.50 (0.40 / 0.25)0.5 = 34.79kWIj1 = Kx Pe / (1.732 Ue cos) = 0.70 34.79 1000 / (1.732 380 0.65) = 56.92APjs = Kx Pe = 0.70 34.79 = 24.35kWQjs = Pjs tg = 24.35 1.17 = 28.47kvA(2)钢筋调直切断机Kx = 0.2，Cos = 0.65，tg = (1 - Cos2)0.5/ Cos = (1 - 0.652)0.5 / 0.65 = 1.17Pe = n P (e/)0.5 = 1.00 5.50 (0.40 / 0.40)0.5 = 5.50kWIj1 = Kx Pe / (1.732 Ue cos) = 0.20 5.50 1000 / (1.732 380 0.65) = 2.57APjs = Kx Pe = 0.20 5.50 = 1.10kWQjs = Pjs tg = 1.10 1.17 = 1.29kvA(3)钢筋切断机Kx = 0.65，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 3.00 (0.40 / 0.40)0.5 = 3.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 3.00 1000 / (1.732 380 0.70) = 4.23APjs = Kx Pe = 0.65 3.00 = 1.95kWQjs = Pjs tg = 1.95 1.02 = 1.99kvA(4)钢筋弯曲机Kx = 0.65，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 3.00 (0.40 / 0.40)0.5 = 3.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 3.00 1000 / (1.732 380 0.70) = 4.23APjs = Kx Pe = 0.65 3.00 = 1.95kWQjs = Pjs tg = 1.95 1.02 = 1.99kvA(5)钢筋弯曲机Kx = 0.65，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 3.00 (0.40 / 0.40)0.5 = 3.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 3.00 1000 / (1.732 380 0.70) = 4.23APjs = Kx Pe = 0.65 3.00 = 1.95kWQjs = Pjs tg = 1.95 1.02 = 1.99kvA(6)木工圆锯Kx = 0.65，Cos = 0.6，tg = (1 - Cos2)0.5/ Cos = (1 - 0.62)0.5 / 0.6 = 1.33Pe = n P (e/)0.5 = 1.00 3.00 (0.40 / 0.40)0.5 = 3.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 3.00 1000 / (1.732 380 0.60) = 4.94APjs = Kx Pe = 0.65 3.00 = 1.95kWQjs = Pjs tg = 1.95 1.33 = 2.60kvA(7)钢筋套丝机Kx = 0.2，Cos = 0.65，tg = (1 - Cos2)0.5/ Cos = (1 - 0.652)0.5 / 0.65 = 1.17Pe = n P (e/)0.5 = 1.00 4.00 (0.40 / 0.40)0.5 = 4.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.20 4.00 1000 / (1.732 380 0.65) = 1.87APjs = Kx Pe = 0.20 4.00 = 0.80kWQjs = Pjs tg = 0.80 1.17 = 0.94kvA(8)对焊机Kx = 0.35，Cos = 0.6，tg = (1 - Cos2)0.5/ Cos = (1 - 0.62)0.5 / 0.6 = 1.33Pe = n P (e/)0.5 = 1.00 40.00 (0.20 / 1.00)0.5 = 17.89kWIj1 = Kx Pe / (1.732 Ue cos) = 0.35 17.89 1000 / (1.732 380 0.60) = 15.85APjs = Kx Pe = 0.35 17.89 = 6.26kWQjs = Pjs tg = 6.26 1.33 = 8.35kvA(9)插入式振动器Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 0.80 (0.40 / 0.40)0.5 = 0.80kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 0.80 1000 / (1.732 380 0.70) = 0.52APjs = Kx Pe = 0.30 0.80 = 0.24kWQjs = Pjs tg = 0.24 1.02 = 0.24kvA(10)插入式振动器Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 0.80 (0.40 / 0.40)0.5 = 0.80kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 0.80 1000 / (1.732 380 0.70) = 0.52APjs = Kx Pe = 0.30 0.80 = 0.24kWQjs = Pjs tg = 0.24 1.02 = 0.24kvA(11)高压钠灯Kx = 0.6，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 1.00 (0.40 / 0.40)0.5 = 1.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.60 1.00 1000 / (1.732 380 0.70) = 1.30APjs = Kx Pe = 0.60 1.00 = 0.60kWQjs = Pjs tg = 0.60 1.02 = 0.61kvA(12)高压钠灯Kx = 0.6，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 1.00 (0.40 / 0.40)0.5 = 1.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.60 1.00 1000 / (1.732 380 0.70) = 1.30APjs = Kx Pe = 0.60 1.00 = 0.60kWQjs = Pjs tg = 0.60 1.02 = 0.61kvA(13)3号分箱计算负荷用电设备同期使用系数Kx=0.70；Ijs = Kx Pe / (1.732 Ue Cos) = 0.70 77.77 1000 / (1.732 380 0.75) = 110.29A；同时要求分箱用电负荷不得小于分箱下用电设备最大计算负荷的1.1倍，故：Ijs = max110.29,1.1max(56.92,2.57,4.23,4.23,4.23,4.94,1.87,15.85,0.52,0.52,1.30,1.30,) = 110.29A4、4号分箱设备用电负荷(1)塔式起重机Kx = 0.7，Cos = 0.65，tg = (1 - Cos2)0.5/ Cos = (1 - 0.652)0.5 / 0.65 = 1.17Pe = n P (e/)0.5 = 1.00 27.50 (0.40 / 0.25)0.5 = 34.79kWIj1 = Kx Pe / (1.732 Ue cos) = 0.70 34.79 1000 / (1.732 380 0.65) = 56.92APjs = Kx Pe = 0.70 34.79 = 24.35kWQjs = Pjs tg = 24.35 1.17 = 28.47kvA(2)钢筋调直切断机Kx = 0.2，Cos = 0.65，tg = (1 - Cos2)0.5/ Cos = (1 - 0.652)0.5 / 0.65 = 1.17Pe = n P (e/)0.5 = 1.00 5.50 (0.40 / 0.40)0.5 = 5.50kWIj1 = Kx Pe / (1.732 Ue cos) = 0.20 5.50 1000 / (1.732 380 0.65) = 2.57APjs = Kx Pe = 0.20 5.50 = 1.10kWQjs = Pjs tg = 1.10 1.17 = 1.29kvA(3)钢筋切断机Kx = 0.65，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 3.00 (0.40 / 0.40)0.5 = 3.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 3.00 1000 / (1.732 380 0.70) = 4.23APjs = Kx Pe = 0.65 3.00 = 1.95kWQjs = Pjs tg = 1.95 1.02 = 1.99kvA(4)钢筋弯曲机Kx = 0.65，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 3.00 (0.40 / 0.40)0.5 = 3.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 3.00 1000 / (1.732 380 0.70) = 4.23APjs = Kx Pe = 0.65 3.00 = 1.95kWQjs = Pjs tg = 1.95 1.02 = 1.99kvA(5)钢筋弯曲机Kx = 0.65，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 3.00 (0.40 / 0.40)0.5 = 3.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 3.00 1000 / (1.732 380 0.70) = 4.23APjs = Kx Pe = 0.65 3.00 = 1.95kWQjs = Pjs tg = 1.95 1.02 = 1.99kvA(6)木工圆锯Kx = 0.65，Cos = 0.6，tg = (1 - Cos2)0.5/ Cos = (1 - 0.62)0.5 / 0.6 = 1.33Pe = n P (e/)0.5 = 1.00 3.00 (0.40 / 0.40)0.5 = 3.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 3.00 1000 / (1.732 380 0.60) = 4.94APjs = Kx Pe = 0.65 3.00 = 1.95kWQjs = Pjs tg = 1.95 1.33 = 2.60kvA(7)钢筋弯曲机Kx = 0.2，Cos = 0.65，tg = (1 - Cos2)0.5/ Cos = (1 - 0.652)0.5 / 0.65 = 1.17Pe = n P (e/)0.5 = 1.00 4.00 (0.40 / 0.40)0.5 = 4.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.20 4.00 1000 / (1.732 380 0.65) = 1.87APjs = Kx Pe = 0.20 4.00 = 0.80kWQjs = Pjs tg = 0.80 1.17 = 0.94kvA(8)对焊机Kx = 0.35，Cos = 0.6，tg = (1 - Cos2)0.5/ Cos = (1 - 0.62)0.5 / 0.6 = 1.33Pe = n P (e/)0.5 = 1.00 40.00 (0.20 / 1.00)0.5 = 17.89kWIj1 = Kx Pe / (1.732 Ue cos) = 0.35 17.89 1000 / (1.732 380 0.60) = 15.85APjs = Kx Pe = 0.35 17.89 = 6.26kWQjs = Pjs tg = 6.26 1.33 = 8.35kvA(9)插入式振动器Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 0.80 (0.40 / 0.40)0.5 = 0.80kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 0.80 1000 / (1.732 380 0.70) = 0.52APjs = Kx Pe = 0.30 0.80 = 0.24kWQjs = Pjs tg = 0.24 1.02 = 0.24kvA(10)插入式振动器Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 0.80 (0.40 / 0.40)0.5 = 0.80kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 0.80 1000 / (1.732 380 0.70) = 0.52APjs = Kx Pe = 0.30 0.80 = 0.24kWQjs = Pjs tg = 0.24 1.02 = 0.24kvA(11)高压钠灯Kx = 0.6，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 1.00 (0.40 / 0.40)0.5 = 1.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.60 1.00 1000 / (1.732 380 0.70) = 1.30APjs = Kx Pe = 0.60 1.00 = 0.60kWQjs = Pjs tg = 0.60 1.02 = 0.61kvA(12)高压钠灯Kx = 0.6，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 1.00 (0.40 / 0.40)0.5 = 1.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.60 1.00 1000 / (1.732 380 0.70) = 1.30APjs = Kx Pe = 0.60 1.00 = 0.60kWQjs = Pjs tg = 0.60 1.02 = 0.61kvA(13)4号分箱计算负荷用电设备同期使用系数Kx=0.70；Ijs = Kx Pe / (1.732 Ue Cos) = 0.70 77.77 1000 / (1.732 380 0.75) = 110.29A；同时要求分箱用电负荷不得小于分箱下用电设备最大计算负荷的1.1倍，故：Ijs = max110.29,1.1max(56.92,2.57,4.23,4.23,4.23,4.94,1.87,15.85,0.52,0.52,1.30,1.30,) = 110.29A5、总箱计算负荷总的计算负荷计算，总配电箱用电设备同期使用系数取Kx = 0.70总的有功功率： Pjs = KxPjs = 0.70 168.41 = 117.89kW总的无功功率： Qjs = KxQjs = 0.70 197.71 = 138.39kvar总的视在功率： Sjs = (Pjs2 + Qjs2)0.5 = (117.89 117.89 + 138.39 138.39)0.5 = 181.80kVA总的计算电流计算：Ijs = Sjs 1000 /(1.732 Ue) = 181.80 1000 / (1.732 380) = 276.22A同时要求总箱下计算负荷不得小于分箱计算负荷的1.1倍，故：Ijs = max276.22,1.1max(110.29,110.29,110.29,110.29,) = %zongijsgongshi% = 276.22A3、导线及开关箱内电气设备选择1、1号干线上导线及开关箱内电气设备选择1.1、塔式起重机导线及开关箱内电气设备选择根据计算负荷，知塔式起重机计算电流为：Ij1 = KxPe/(1.732Uecos) = 56.92A(1)选择VLV-316+216，安全载流量为60A56.92A。(2)选择开关箱内开关为HR3-100/60，其熔体额定电流为Ir = 60A 56.92A，漏电保护器为DZ47LE-60/60。1.2、钢筋调直切断机导线及开关箱内电气设备选择根据计算负荷，知钢筋调直切断机计算电流为：Ij2 = KxPe/(1.732Uecos) = 2.57A(1)选择BLX-316+216，安全载流量为52A2.57A。(2)选择开关箱内开关为HR5-100/4，其熔体额定电流为Ir = 4A 2.57A，漏电保护器为DZ15LE-40/6。1.3、钢筋切断机导线及开关箱内电气设备选择根据计算负荷，知钢筋切断机计算电流为：Ij3 = KxPe/(1.732Uecos) = 4.23A(1)选择BLX-316+216，安全载流量为52A4.23A。(2)选择开关箱内开关为HR6-160/6，其熔体额定电流为Ir = 6A 4.23A，漏电保护器为DZ15LE-40/6。1.4、钢筋弯曲机导线及开关箱内电气设备选择根据计算负荷，知钢筋弯曲机计算电流为：Ij4 = KxPe/(1.732Uecos) = 4.23A(1)选择BLX-316+216，安全载流量为52A4.23A。(2)选择开关箱内开关为HR6-160/6，其熔体额定电流为Ir = 6A 4.23A，漏电保护器为DZ15LE-40/6。1.5、钢筋弯曲机导线及开关箱内电气设备选择根据计算负荷，知钢筋弯曲机计算电流为：Ij5 = KxPe/(1.732Uecos) = 4.23A(1)选择BLX-316+216