临时用电专项方案计算书.doc

施工现场临时用电组织设计一、编制根据1、施工现场临时用电安全技术规范JGJ46-20232、低压配电设计规范GB50054-20233、建筑工程施工现场供电安全规范GB50194-20234、通用用电设备配电设计规范GB50055-20235、工业与民用配电设计手册第三版6、建筑施工安全检查原则JGJ59-2023二、参数设置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)5总配电箱旳同期使用系数Kx0.8分派电箱数量11导线线芯材料铝线总配电箱进线敷设方式空气明敷/架空线路分派电箱进线敷设方式空气明敷/架空线路设备电线敷设方式空气明敷/架空线路干线容许电压降%52、分箱参数3、用电设备参数4、临电设备计算及配置三、初步设计(1)施工现场临时用电安全技术规范（JGJ46-2023）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，三级防护。(4)按照JGJ46-2023规定制定施工组织设计，接地电阻R4。(5)按照JGJ46-2023规定若为架空线路则“根据机械强度规定，绝缘铜线截面不不大于10mm2，绝缘铝线截面不不大于16mm2”。四、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 = 2.00 35.00 (0.40 / 0.25)0.5 = 88.54kWIj1 = Kx Pe / (1.732 Ue cos) = 0.70 88.54 1000 / (1.732 380 0.65) = 144.88APjs = Kx Pe = 0.70 88.54 = 61.98kWQjs = Pjs tg = 61.98 1.17 = 72.46kvA(2)高压汞灯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 = 4.00 3.00 (0.40 / 0.40)0.5 = 12.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.60 12.00 1000 / (1.732 380 0.70) = 15.63APjs = Kx Pe = 0.60 12.00 = 7.20kWQjs = Pjs tg = 7.20 1.02 = 7.35kvA(3)1号分箱计算负荷用电设备同期使用系数Kx=0.60；Ijs = Kx Pe / (1.732 Ue Cos) = 0.60 100.54 1000 / (1.732 380 0.75) = 122.21A；同步规定分箱用电负荷不得不大于分箱下用电设备最大计算负荷旳1.1倍，故：Ijs = max122.21,1.1max(144.88,15.63,) = 159.37A2、2号分箱设备用电负荷(1)地下车库随楼箱Kx = 0.3，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 15.00 (0.40 / 0.40)0.5 = 15.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 15.00 1000 / (1.732 380 0.60) = 11.40APjs = Kx Pe = 0.30 15.00 = 4.50kWQjs = Pjs tg = 4.50 1.33 = 6.00kvA(2)2号分箱计算负荷用电设备同期使用系数Kx=0.60；Ijs = Kx Pe / (1.732 Ue Cos) = 0.60 15.00 1000 / (1.732 380 0.75) = 18.23A；同步规定分箱用电负荷不得不大于分箱下用电设备最大计算负荷旳1.1倍，故：Ijs = max18.23,1.1max(11.40,) = 18.23A3、3号分箱设备用电负荷(1)生活区Kx = 0.75，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 30.00 (0.40 / 0.40)0.5 = 30.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.75 30.00 1000 / (1.732 380 0.70) = 48.84APjs = Kx Pe = 0.75 30.00 = 22.50kWQjs = Pjs tg = 22.50 1.02 = 22.95kvA(2)3号分箱计算负荷用电设备同期使用系数Kx=0.60；Ijs = Kx Pe / (1.732 Ue Cos) = 0.60 30.00 1000 / (1.732 380 0.75) = 36.47A；同步规定分箱用电负荷不得不大于分箱下用电设备最大计算负荷旳1.1倍，故：Ijs = max36.47,1.1max(48.84,) = 53.72A4、4号分箱设备用电负荷(1)塔式起重机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 35.00 (0.40 / 0.25)0.5 = 44.27kWIj1 = Kx Pe / (1.732 Ue cos) = 0.20 44.27 1000 / (1.732 380 0.65) = 20.70APjs = Kx Pe = 0.20 44.27 = 8.85kWQjs = Pjs tg = 8.85 1.17 = 10.35kvA(2)高压汞灯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 = 2.00 3.00 (0.40 / 0.40)0.5 = 6.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.60 6.00 1000 / (1.732 380 0.70) = 7.81APjs = Kx Pe = 0.60 6.00 = 3.60kWQjs = Pjs tg = 3.60 1.02 = 3.67kvA(3)4号分箱计算负荷用电设备同期使用系数Kx=0.60；Ijs = Kx Pe / (1.732 Ue Cos) = 0.60 50.27 1000 / (1.732 380 0.75) = 61.11A；同步规定分箱用电负荷不得不大于分箱下用电设备最大计算负荷旳1.1倍，故：Ijs = max61.11,1.1max(20.70,7.81,) = 61.11A5、5号分箱设备用电负荷(1)施工升降机Kx = 0.3，Cos = 0.6，tg = (1 - Cos2)0.5/ Cos = (1 - 0.62)0.5 / 0.6 = 1.33Pe = n P (e/)0.5 = 2.00 60.00 (0.40 / 0.40)0.5 = 120.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 120.00 1000 / (1.732 380 0.60) = 91.16APjs = Kx Pe = 0.30 120.00 = 36.00kWQjs = Pjs tg = 36.00 1.33 = 48.00kvA(2)5号分箱计算负荷用电设备同期使用系数Kx=0.60；Ijs = Kx Pe / (1.732 Ue Cos) = 0.60 120.00 1000 / (1.732 380 0.75) = 145.86A；同步规定分箱用电负荷不得不大于分箱下用电设备最大计算负荷旳1.1倍，故：Ijs = max145.86,1.1max(91.16,) = 145.86A6、6号分箱设备用电负荷(1)施工升降机Kx = 0.2，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 60.00 (0.40 / 0.40)0.5 = 60.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.20 60.00 1000 / (1.732 380 0.60) = 30.39APjs = Kx Pe = 0.20 60.00 = 12.00kWQjs = Pjs tg = 12.00 1.33 = 16.00kvA(2)6号分箱计算负荷用电设备同期使用系数Kx=0.60；Ijs = Kx Pe / (1.732 Ue Cos) = 0.60 60.00 1000 / (1.732 380 0.75) = 72.93A；同步规定分箱用电负荷不得不大于分箱下用电设备最大计算负荷旳1.1倍，故：Ijs = max72.93,1.1max(30.39,) = 72.93A7、7号分箱设备用电负荷(1)钢筋调直机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 7.50 (0.40 / 0.40)0.5 = 7.50kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 7.50 1000 / (1.732 380 0.70) = 10.58APjs = Kx Pe = 0.65 7.50 = 4.88kWQjs = Pjs tg = 4.88 1.02 = 4.97kvA(2)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 3.50 (0.40 / 0.40)0.5 = 3.50kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 3.50 1000 / (1.732 380 0.70) = 4.94APjs = Kx Pe = 0.65 3.50 = 2.27kWQjs = Pjs tg = 2.27 1.02 = 2.32kvA(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 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(4)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 16.00 (0.20 / 1.00)0.5 = 7.16kWIj1 = Kx Pe / (1.732 Ue cos) = 0.35 7.16 1000 / (1.732 380 0.60) = 6.34APjs = Kx Pe = 0.35 7.16 = 2.50kWQjs = Pjs tg = 2.50 1.33 = 3.34kvA(5)套丝切管机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 1.00 (0.40 / 0.40)0.5 = 1.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.20 1.00 1000 / (1.732 380 0.65) = 0.47APjs = Kx Pe = 0.20 1.00 = 0.20kWQjs = Pjs tg = 0.20 1.17 = 0.23kvA(6)7号分箱计算负荷用电设备同期使用系数Kx=0.60；Ijs = Kx Pe / (1.732 Ue Cos) = 0.60 23.16 1000 / (1.732 380 0.75) = 28.15A；同步规定分箱用电负荷不得不大于分箱下用电设备最大计算负荷旳1.1倍，故：Ijs = max28.15,1.1max(10.58,4.94,5.64,6.34,0.47,) = 28.15A8、8号分箱设备用电负荷(1)100m高扬程水泵Kx = 0.75，Cos = 0.8，tg = (1 - Cos2)0.5/ Cos = (1 - 0.82)0.5 / 0.8 = 0.75Pe = n P (e/)0.5 = 2.00 20.00 (0.40 / 0.40)0.5 = 40.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.75 40.00 1000 / (1.732 380 0.80) = 56.98APjs = Kx Pe = 0.75 40.00 = 30.00kWQjs = Pjs tg = 30.00 0.75 = 22.50kvA(2)8号分箱计算负荷用电设备同期使用系数Kx=0.60；Ijs = Kx Pe / (1.732 Ue Cos) = 0.60 40.00 1000 / (1.732 380 0.75) = 48.62A；同步规定分箱用电负荷不得不大于分箱下用电设备最大计算负荷旳1.1倍，故：Ijs = max48.62,1.1max(56.98,) = 62.67A9、9号分箱设备用电负荷(1)3#楼随楼箱Kx = 0.3，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 15.00 (0.40 / 0.40)0.5 = 15.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 15.00 1000 / (1.732 380 0.60) = 11.40APjs = Kx Pe = 0.30 15.00 = 4.50kWQjs = Pjs tg = 4.50 1.33 = 6.00kvA(2)9号分箱计算负荷用电设备同期使用系数Kx=0.60；Ijs = Kx Pe / (1.732 Ue Cos) = 0.60 15.00 1000 / (1.732 380 0.75) = 18.23A；同步规定分箱用电负荷不得不大于分箱下用电设备最大计算负荷旳1.1倍，故：Ijs = max18.23,1.1max(11.40,) = 18.23A10、10号分箱设备用电负荷(1)4#楼随楼箱Kx = 0.3，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 15.00 (0.40 / 0.40)0.5 = 15.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 15.00 1000 / (1.732 380 0.60) = 11.40APjs = Kx Pe = 0.30 15.00 = 4.50kWQjs = Pjs tg = 4.50 1.33 = 6.00kvA(2)10号分箱计算负荷用电设备同期使用系数Kx=0.60；Ijs = Kx Pe / (1.732 Ue Cos) = 0.60 15.00 1000 / (1.732 380 0.75) = 18.23A；同步规定分箱用电负荷不得不大于分箱下用电设备最大计算负荷旳1.1倍，故：Ijs = max18.23,1.1max(11.40,) = 18.23A11、11号分箱设备用电负荷(1)7#楼随楼箱Kx = 0.1，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 15.00 (0.40 / 0.40)0.5 = 15.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.10 15.00 1000 / (1.732 380 0.60) = 3.80APjs = Kx Pe = 0.10 15.00 = 1.50kWQjs = Pjs tg = 1.50 1.33 = 2.00kvA(2)11号分箱计算负荷用电设备同期使用系数Kx=0.60；Ijs = Kx Pe / (1.732 Ue Cos) = 0.60 15.00 1000 / (1.732 380 0.75) = 18.23A；同步规定分箱用电负荷不得不大于分箱下用电设备最大计算负荷旳1.1倍，故：Ijs = max18.23,1.1max(3.80,) = 18.23A12、总箱计算负荷总旳计算负荷计算，总配电箱用电设备同期使用系数取Kx = 0.80总旳有功功率： Pjs = KxPjs = 0.80 209.59 = 167.67kW总旳无功功率： Qjs = KxQjs = 0.80 236.81 = 189.45kvar总旳视在功率： Sjs = (Pjs2 + Qjs2)0.5 = (167.67 167.67 + 189.45 189.45)0.5 = 252.99kVA总旳计算电流计算：Ijs = Sjs 1000 /(1.732 Ue) = 252.99 1000 / (1.732 380) = 384.39A同步规定总箱下计算负荷不得不大于分箱计算负荷旳1.1倍，故：Ijs = max384.39,1.1max(159.37,18.23,53.72,61.11,145.86,72.93,28.15,62.67,18.23,18.23,18.23,) = 384.39A五、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) = 144.88A(1)选择YJLV-335+216，安全载流量为145A144.88A。(2)选择开关箱内开关为HR3-400/150，其熔体额定电流为Ir = 150A 144.88A，漏电保护器为DZL25-200/160。1.2、高压汞灯导线及开关箱内电气设备选择根据计算负荷，知高压汞灯计算电流为：Ij2 = KxPe/(1.732Uecos) = 15.63A(1)选择BLX-316+216，安全载流量为52A15.63A。(2)选择开关箱内开关为HR6-160/16，其熔体额定电流为Ir = 16A 15.63A，漏电保护器为DZ47LE-32/16。1.3、分箱B1进线及开关箱内电气设备选择根据计算负荷，知1号分箱计算电流为：Ijs = 159.37A(1)选择电缆BLV-370+235，安全载流量为162A 159.37A，电缆截面面积为70mm2。按照容许电压降为5%，导线截面为：S1 = Kx1 Pe L1 /(C 5 )= 0.60 100.54 150.00 / (46.30 5.00) = 39.09mm2 70mm2(2) 选择开关箱内开关为HR6-160/160，其熔体额定电流为Ir = 160A 159.37A，漏电保护器为DZL25-200/160。符合规定2、2号干线上导线及开关箱内电气设备选择2.1、地下车库随楼箱导线及开关箱内电气设备选择根据计算负荷，知地下车库随楼箱计算电流为：Ij1 = KxPe/(1.732Uecos) = 11.40A(1)选择BLX-316+216，安全载流量为52A11.40A。(2)选择开关箱内开关为HH3-15/15，其熔体额定电流为Ir = 15A 11.40A，漏电保护器为DZ15LE-63/15。2.2、分箱B10进线及开关箱内电气设备选择根据计算负荷，知2号分箱计算电流为：Ijs = 18.23A(1)选择电缆BLX-316+216，安全载流量为52A 18.23A，电缆截面面积为16mm2。按照容许电压降为5%，导线截面为：S1 = Kx1 Pe L1 /(C 5 )= 0.60 15.00 150.00 / (46.30 5.00) = 5.83mm2 16mm2(2) 选择开关箱内开关为HR6-160/20，其熔体额定电流为Ir = 20A 18.23A，漏电保护器为3KM1L-100/20。符合规定3、3号干线上导线及开关箱内电气设备选择3.1、生活区导线及开关箱内电气设备选择根据计算负荷，知生活区计算电流为：Ij1 = KxPe/(1.732Uecos) = 48.84A(1)选择BLX-316+216，安全载流量为52A48.84A。(2)选择开关箱内开关为HR5-100/50，其熔体额定电流为Ir = 50A 48.84A，漏电保护器为DZL25-100/50。3.2、分箱B11进线及开关箱内电气设备选择根据计算负荷，知3号分箱计算电流为：Ijs = 53.72A(1)选择电缆VLV-316+216，安全载流量为60A 53.72A，电缆截面面积为16mm2。按照容许电压降为5%，导线截面为：S1 = Kx1 Pe L1 /(C 5 )= 0.60 30.00 150.00 / (46.30 5.00) = 11.66mm2 16mm2(2) 选择开关箱内开关为HR3-100/60，其熔体额定电流为Ir = 60A 53.72A，漏电保护器为DZ47LE-60/60。符合规定4、4号干线上导线及开关箱内电气设备选择4.1、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) = 20.70A(1)选择BLX-316+216，安全载流量为52A20.70A。(2)选择开关箱内开关为HR6-160/25，其熔体额定电流为Ir = 25A 20.70A，漏电保护器为3KM1L-63/25。4.2、高压汞灯导线及开关箱内电气设备选择根据计算负荷，知高压汞灯计算电流为：Ij2 = KxPe/(1.732Uecos) = 7.81A(1)选择BLX-316+216，安全载流量为52A7.81A。(2)选择开关箱内开关为HR5-100/10，其熔体额定电流为Ir = 10A 7.81A，漏电保护器为DZ15LE-63/10。4.3、分箱B2进线及开关箱内电气设备选择根据计算负荷，知4号分箱计算电流为：Ijs = 61.11A(1)选择电缆BLV-316+216，安全载流量为65A 61.11A，电缆截面面积为16mm2。按照容许电压降为5%，导线截面为：S1 = Kx1 Pe L1 /(C 5 )= 0.60 50.27 35.00 / (46.30 5.00) = 4.56mm2 16mm2(2) 选择开关箱内开关为HR6-160/63，其熔体额定电流为Ir = 63A 61.11A，漏电保护器为3KM1L-100/63。符合规定5、5号干线上导线及开关箱内电气设备选择5.1、施工升降机导线及开关箱内电气设备选择根据计算负荷，知施工升降机计算电流为：Ij1 = KxPe/(1.732Uecos) = 91.16A(1)选择XLV-325+216，安全载流量为94A91.16A。(2)选择开关箱内开关为HH3-100/100，其熔体额定电流为Ir = 100A 91.16A，漏电保护器为DZL25-200/100。5.2、分箱B3进线及开关箱内电气设备选择根据计算负荷，知5号分箱计算电流为：Ijs = 145.86A(1)选择电缆BLV-370+235，安全载流量为162A 145.86A，电缆截面面积为70mm2。按照容许电压降为5%，导线截面为：S1 = Kx1 Pe L1 /(C 5 )= 0.60 120.00 150.00 / (46.30 5.00) = 46.65mm2 70mm2(2) 选择开关箱内开关为HR3-400/150，其熔体额定电流为Ir = 150A 145.86A，漏电保护器为DZL25-200/160。符合规定6、6号干线上导线及开关箱内电气设备选择6.1、施工升降机导线及开关箱内电气设备选择根据计算负荷，知施工升降机计算电流为：Ij1 = KxPe/(1.732Uecos) = 30.39A(1)选择BLX-316+216，安全载流量为52A30.39A。(2)选择开关箱内开关为HR6-160/32，其熔体额定电流为Ir = 32A 30.39A，漏电保护器为3KM1L-63/32。6.2、分箱B4进线及开关箱内电气设备选择根据计算负荷，知6号分箱计算电流为：Ijs = 72.93A(1)选择电缆VLV-325+216，安全载流量为79A 72.93A，电缆截面面积为25mm2。按照容许电压降为5%，导线截面为：S1 = Kx1 Pe L1 /(C 5 )= 0.60 60.00 35.00 / (46.30 5.00) = 5.44mm2 25mm2(2) 选择开关箱内开关为HH4-100/80，其熔体额定电流为Ir = 80A 72.93A，漏电保护器为DZL25-100/80。符合规定7、7号干线上导线及开关箱内电气设备选择7.1、钢筋调直机导线及开关箱内电气设备选择根据计算负荷，知钢筋调直机计算电流为：Ij1 = KxPe/(1.732Uecos) = 10.58A(1)选择BLX-316+216，安全载流量为52A10.58A。(2)选择开关箱内开关为HH3-15/15，其熔体额定电流为Ir = 15A 10.58A，漏电保护器为DZ15LE-63/15。7.2、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：Ij2 = KxPe/(1.732Uecos) = 4.94A(1)选择BLX-316+216，安全载流量为52A4.94A。(2)选择开关箱内开关为HR6-160/6，其熔体额定电流为Ir = 6A 4.94A，漏电保护器为DZ15LE-40/6。7.3、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) = 5.64A(1)选择BLX-316+216，安全载流量为52A5.64A。(2)选择开关箱内开关为HR6-160/6，其熔体额定电流为Ir = 6A 5.64A，漏电保护器为DZ15LE-40/6。7.4、对焊机导线及开关箱内电气设备选择根据计算负荷，知对焊机计算电流为：Ij4 = KxPe/(1.732Uecos) = 6.34A(1)选择BLX-316+216，安全载流量为52A6.34A。(2)选择开关箱内开关为HR5-100/10，其熔体额定电流为Ir = 10A 6.34A，漏电保护器为DZ15LE-63/10。7.5、套丝切管机导线及开关箱内电气设备选择根据计算负荷，知套丝切管机计算电流为：Ij5 = KxPe/(1.732Uecos) = 0.47A(1)选择BLX-316+216，安全载流量为52A0.47A。(2)选择开关箱内开关为HR5-100/4，其熔体额定电流为Ir = 4A 0.47A，漏电保护器为DZ15LE-40/6。7.6、分箱B5进线及开关箱内电气设备选择根据计算负荷，知7号分箱计算电流为：Ijs = 28.15A(1)选择电缆BLX-316+216，安全载流量为52A 28.15A，电缆截面面积为16mm2。按照容许电压降为5%，导线截面为：S1 = Kx1 Pe L1 /(C 5 )= 0.60 23.16 150.00 / (46.30 5.00) = 9.00mm2 16mm2(2) 选择开关箱内开关为HR3-100/30，其熔体额定电流为Ir = 30A 28.15A，漏电保护器为DZ15LE-63/30。符合规定8、8号干线上导线及开关箱内电气设备选择8.1、100m高扬程水泵导线及开关箱内电气设备选择根据计算负荷，知100m高扬程水泵计算电流为：Ij1 = KxPe/(1.732Uecos) = 56.98A(1)选择VLV-316+216，安全载流量为60A56.98A。(2)选择开关箱内开关为HR3-100/60，其熔体额定电流为Ir = 60A 56.98A，漏电保护器为DZ47LE-60/60。8.2、分箱B6进线及开关箱内电气设备选择根据计算负荷，知8号分箱计算电流为：Ijs = 62.67A(1)选择电缆BLV-316+216，安全载流量为65A 62.67A，电缆截面面积为16mm2。按照容许电压降为5%，导线截面为：S1 = Kx1 Pe L1 /(C 5 )= 0.60 40.00 35.00 / (46.30 5.00) = 3.63mm2 16mm2(2) 选择开关箱内开关为HR6-160/63，其熔体额定电流为Ir = 63A 62.67A，漏电保护器为3KM1L-100/63。符合规定9、9号干线上导线及开关箱内电气设备选择9.1、3#楼随楼箱导线及开关箱内电气设备选择根据计算负荷，知3#楼随楼箱计算电流为：Ij1 = KxPe/(1.732Uecos) = 11.40A(1)选择BLX-316+216，安全载流量为52A11.40A。(2)选择开关箱内开关为HH3-15/15，其熔体额定电流为Ir = 15A 11.40A，漏电保护器为DZ15LE-63/15。9.2、分箱B7进线及开关箱内电气设备选择根据计算负荷，知9号分箱计算电流为：Ijs = 18.23A(1)选择电缆BLX-316+216，安全载流量为52A 18.23A，电缆截面面积为16mm2。按照容许电压降为5%，导线截面为：S1 = Kx1 Pe L1 /(C 5 )= 0.60 15.00 150.00 / (46.30 5.00) = 5.83mm2 16mm2(2) 选择开关箱内开关为HR6-160/20，其熔体额定电流为Ir = 20A 18.