临时用电组织设计.docx

1、临时用电组织设计城建家园住宅小区项目施工现场临时用电组织设计编制人： 审核人： 审批人： 编制单位：北京龙建集团有限公司编制日期：2019年3月15日1. 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JGJ59-20117、施工现场平面布置图8、广联达安全设计计算软件2.工程概况及现场情况2.1现场布置施工现场用电由东西两侧两台315KV的变压器引入，施工现场分为东西两个区

2、，两个区各单独设置一个一级配电箱，生活区、办公区均不在施工现场及附近，本次设计只考虑施工现场用电，由于装修时大部分大功率电器已离场，以东区用电量负荷较大一侧计算进行设计。2. 2有关技术参数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)80总配电箱的同期使用系数Kx0.8分配电箱数量9导线线芯材料铜线总配电箱进线敷设方式空气明敷/架空线路分配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/架空线路干线允许电压降%52、分箱参数3、用电设备参数4、临电设备计算及配置3、初步设计(1)施工现场临时用电安全技术规范（JGJ46-2005）总则中

3、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JGJ46-2005规定制定施工组织设计，接地电阻R4。(5)按照JGJ46-2005规定若为架空线路则“根据机械强度要求，绝缘铜线截面不小于10mm2，绝缘铝线截面不小于16mm2”。4、用电负荷1、1号分箱设备用电负荷(1)塔吊Kx = 0.25，Cos = 0.5，tg = (1 - Cos2)0.5/ Cos = (1 - 0.52)0.5 / 0.5 = 1.73

4、Pe = n P (e/)0.5 = 1.00 50.00 (0.25 / 1.00)0.5 = 25.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.25 25.00 1000 / (1.732 380 0.50) = 18.99APjs = Kx Pe = 0.25 25.00 = 6.25kWQjs = Pjs tg = 6.25 1.73 = 10.83kvA(2)1号分箱计算负荷用电设备同期使用系数Kx=0.80；Ijs = Kx Pe / (1.732 Ue Cos) = 0.80 25.00 1000 / (1.732 380 0.75) = 40.52

5、A；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 = max40.52,1.1max(18.99,) = 40.52A2、2号分箱设备用电负荷(1)塔吊Kx = 0.35，Cos = 0.35，tg = (1 - Cos2)0.5/ Cos = (1 - 0.352)0.5 / 0.35 = 2.68Pe = n P (e/)0.5 = 1.00 50.00 (0.60 / 1.00)0.5 = 38.73kWIj1 = Kx Pe / (1.732 Ue cos) = 0.35 38.73 1000 / (1.732 380 0.35) = 58.85APjs

6、 = Kx Pe = 0.35 38.73 = 13.56kWQjs = Pjs tg = 13.56 2.68 = 36.28kvA(2)2号分箱计算负荷用电设备同期使用系数Kx=0.80；Ijs = Kx Pe / (1.732 Ue Cos) = 0.80 38.73 1000 / (1.732 380 0.75) = 62.77A；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 = max62.77,1.1max(58.85,) = 64.73A3、3号分箱设备用电负荷(1)塔吊Kx = 0.6，Cos = 0.7，tg = (1 - Cos2)0.5/

7、Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 50.00 (1.00 / 1.00)0.5 = 50.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.60 50.00 1000 / (1.732 380 0.70) = 65.12APjs = Kx Pe = 0.60 50.00 = 30.00kWQjs = Pjs tg = 30.00 1.02 = 30.61kvA(2)3号分箱计算负荷用电设备同期使用系数Kx=0.80；Ijs = Kx Pe / (1.732 Ue Cos) = 0.80 50.

8、00 1000 / (1.732 380 0.75) = 81.03A；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 = max81.03,1.1max(65.12,) = 81.03A4、4号分箱设备用电负荷(1)插入式混凝土振捣器Kx = 0.7，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 3.00 1.50 (0.40 / 0.40)0.5 = 4.50kWIj1 = Kx Pe / (1.732 Ue cos) = 0.70 4.50 1

9、000 / (1.732 380 0.70) = 6.84APjs = Kx Pe = 0.70 4.50 = 3.15kWQjs = Pjs tg = 3.15 1.02 = 3.21kvA(2)镝灯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) = 7.81APj

10、s = 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=0.80；Ijs = Kx Pe / (1.732 Ue Cos) = 0.80 10.50 1000 / (1.732 380 0.75) = 17.02A；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 = max17.02,1.1max(6.84,7.81,) = 17.02A5、5号分箱设备用电负荷(1)插入式混凝土振捣器Kx = 0.7，Cos = 0.7，tg = (1 - Co

11、s2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 3.00 1.50 (0.40 / 0.40)0.5 = 4.50kWIj1 = Kx Pe / (1.732 Ue cos) = 0.70 4.50 1000 / (1.732 380 0.70) = 6.84APjs = Kx Pe = 0.70 4.50 = 3.15kWQjs = Pjs tg = 3.15 1.02 = 3.21kvA(2)镝灯Kx = 0.6，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.

12、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)5号分箱计算负荷用电设备同期使用系数Kx=0.80；Ijs = Kx Pe / (1.732 Ue Cos) = 0.80 10.50 1000 / (1.732 380 0.75) = 17.

13、02A；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 = max17.02,1.1max(6.84,7.81,) = 17.02A6、6号分箱设备用电负荷(1)插入式混凝土振捣器Kx = 0.7，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 3.00 1.50 (0.40 / 0.40)0.5 = 4.50kWIj1 = Kx Pe / (1.732 Ue cos) = 0.70 4.50 1000 / (1.732 380 0.70) = 6.8

14、4APjs = Kx Pe = 0.70 4.50 = 3.15kWQjs = Pjs tg = 3.15 1.02 = 3.21kvA(2)镝灯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 = 3.60

15、kWQjs = Pjs tg = 3.60 1.02 = 3.67kvA(3)6号分箱计算负荷用电设备同期使用系数Kx=0.80；Ijs = Kx Pe / (1.732 Ue Cos) = 0.80 10.50 1000 / (1.732 380 0.75) = 17.02A；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 = max17.02,1.1max(6.84,7.81,) = 17.02A7、7号分箱设备用电负荷(1)切割机Kx = 0.7，Cos = 0.6，tg = (1 - Cos2)0.5/ Cos = (1 - 0.62)0.5 / 0.6

16、= 1.33Pe = n P (e/)0.5 = 2.00 2.20 (0.50 / 1.00)0.5 = 3.11kWIj1 = Kx Pe / (1.732 Ue cos) = 0.70 3.11 1000 / (1.732 380 0.60) = 5.52APjs = Kx Pe = 0.70 3.11 = 2.18kWQjs = Pjs tg = 2.18 1.33 = 2.90kvA(2)直流电焊机Kx = 0.7，Cos = 0.6，tg = (1 - Cos2)0.5/ Cos = (1 - 0.62)0.5 / 0.6 = 1.33Pe = n P (e/)0.5 = 4.00

17、 6.00 (0.50 / 1.00)0.5 = 16.97kWIj1 = Kx Pe / (1.732 Ue cos) = 0.70 16.97 1000 / (1.732 380 0.60) = 30.08APjs = Kx Pe = 0.70 16.97 = 11.88kWQjs = Pjs tg = 11.88 1.33 = 15.84kvA(3)7号分箱计算负荷用电设备同期使用系数Kx=0.80；Ijs = Kx Pe / (1.732 Ue Cos) = 0.80 20.08 1000 / (1.732 380 0.75) = 32.55A；同时要求分箱用电负荷不得小于分箱下用电设

18、备最大计算负荷的1.1倍，故：Ijs = max32.55,1.1max(5.52,30.08,) = 33.09A8、8号分箱设备用电负荷(1)数控钢筋调直切断机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 9.50 (0.40 / 0.40)0.5 = 9.50kWIj1 = Kx Pe / (1.732 Ue cos) = 0.20 9.50 1000 / (1.732 380 0.65) = 4.44APjs = Kx Pe = 0.20

19、 9.50 = 1.90kWQjs = Pjs tg = 1.90 1.17 = 2.22kvA(2)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 = 2.00 5.50 (0.40 / 0.40)0.5 = 11.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 11.00 1000 / (1.732 380 0.70) = 15.52APjs = Kx Pe = 0.65 11.00 = 7.15kWQjs = Pjs

20、tg = 7.15 1.02 = 7.29kvA(3)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 = 2.00 5.50 (0.40 / 0.40)0.5 = 11.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.20 11.00 1000 / (1.732 380 0.65) = 5.14APjs = Kx Pe = 0.20 11.00 = 2.20kWQjs = Pjs tg = 2.20 1.17 = 2.57kv

21、A(4)直螺纹套丝机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 = 2.00 2.20 (0.40 / 0.40)0.5 = 4.40kWIj1 = Kx Pe / (1.732 Ue cos) = 0.20 4.40 1000 / (1.732 380 0.65) = 2.06APjs = Kx Pe = 0.20 4.40 = 0.88kWQjs = Pjs tg = 0.88 1.17 = 1.03kvA(5)木压刨板机Kx = 0.65，Cos =

22、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(6)木工圆锯Kx = 0.65，Cos = 0.6，tg = (1 - Cos2)0.5/ Cos =

23、 (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)木工平刨床Kx = 0.65，Cos = 0.6，tg = (1 - Cos2)0.5/ Cos = (1 - 0.62)0.5 / 0.6 = 1.33P

24、e = 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(8)8号分箱计算负荷用电设备同期使用系数Kx=0.80；Ijs = Kx Pe / (1.732 Ue Cos) = 0.80 44.90 1000 / (1.732 380 0.75) = 72.77A；同时要求分

25、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 = max72.77,1.1max(4.44,15.52,5.14,2.06,4.94,4.94,4.94,) = 72.77A9、9号分箱设备用电负荷(1)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 = 2.00 5.50 (0.40 / 0.40)0.5 = 11.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 11.00 1000 / (1.732

26、 380 0.70) = 15.52APjs = Kx Pe = 0.65 11.00 = 7.15kWQjs = Pjs tg = 7.15 1.02 = 7.29kvA(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 = 2.00 5.50 (0.40 / 0.40)0.5 = 11.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 11.00 1000 / (1.732 380 0.70) = 15.52APjs =

27、 Kx Pe = 0.65 11.00 = 7.15kWQjs = Pjs tg = 7.15 1.02 = 7.29kvA(3)直螺纹套丝机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 = 2.00 2.20 (0.40 / 0.40)0.5 = 4.40kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 4.40 1000 / (1.732 380 0.70) = 6.21APjs = Kx Pe = 0.65 4.40 = 2.86kWQjs = Pjs tg = 2.86 1.02 = 2.92kvA(4)数控钢筋调直切断机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 9.50 (0.40 / 0.40)0.5 = 9.50kWIj1 = Kx Pe / (1.732 Ue cos) = 0.20 9.50 1000 / (1.732 380 0.65) = 4.44APjs = Kx Pe = 0.20 9.50 = 1.