移动互联网产业园项目临时用电施工方案培训资料.docx

移动互联网产业园项目临时用电施工方案培训资料

星火智谷移动互联网产业园项目

临时用电施工方案

编制人:
审核人:
审批人:

编制单位:江苏南通三建集团股份有限公司
编制日期: 年 月 日

目录

第一章、编制依据及工程概况 1
1.编制依据 1
2.工程简介 1
3.工程概况 1
第二章、配电系统及计算书 2
1.配电系统 2
2.临时用电计算书 3
第三章、临时用电安全措施 22
1.组织机构 22
2.防雷与接地装置设计及用电安全技术措施 22
3.电气火灾预防及扑灭措施 26
第四章、现场平面布置图、配电系统图 27
1.现场平面布置图 27
2.配电系统图 28

第一章、编制依据及工程概况
1.编制依据
1.1建设单位及设计提供的施工图纸以及其它相关资料;
1.2 现行国家及地方施工技术规范、规程;
1.3<施工现场临时用电安全技术规范>JGJ46-
1.4<低压配电设计规范>GB50054-
1.5<建筑工程施工现场供电安全规范>GB50194-
1.6<工业与民用配电设计手册>第三版
1.7<建筑施工安全检查标准>JGJ59-
1.8广联达施工安全设施计算软件;
2.工程简介
工程名称:星火智谷移动互联网产业园二期工程
建设单位:南京互信互通科技有限公司
设计单位:南京城镇建筑设计咨询有限公司
监理单位:南京腾江工程建设监理有限责任公司
施工单位:江苏南通三建集团有限公司
工程地址:南京市浦口区星火路东侧,东南大学成贤学院西侧,地铁3号线星火路站以南、东大路以北。
3. 工程概况
3.1本项目由地下汽车车库、局部地下自行车停车库,上部C1#~C4#、C5#楼共计5幢楼组成。主体C1#~C4#为框架结构,C1~C4#6层,结构总高度23.35米;主体C5#为框剪结构,C5#15层,结构总高度59.85米;地下室两层,其中地下一层层高4.7-6.5米,地下二层层高3.7米,地下室顶板覆土高度0.8~1.0米。
3.2建筑结构设计使用年限为50年;地下室防水等级二级,种植顶板防水等级一级,变电所、配电房防水等级一级,抗震设防烈度七度,防护等级二等人员掩蔽工程,防核武器等级为六级;C1~C4#楼为多层办公楼,结构安全等级二级,地上耐火等级二级,地下耐火等级一级,抗震设防烈度七度;C5#楼为一类高层办公楼,结构安全等级二级,地上耐火等级一级,地下耐火等级一级,抗震设防烈度七度。
第二章 、配电系统及计算书
1. 配电系统
1.1本工程用电主要负荷为施工现场照明、机械设备及钢筋、木工加工车间,办公室及生活区用电。
1.2现场用电均从由建设单位提供的低压配电房109-3柜引出(断路器容量800A,电流互感器变比800:5);一级配电房设置在二期C5东北角,内设两台配电柜(一台用于生活区供电,一台用于施工区域供电)导线截面和电箱选用见施工用电系统图。
1.3采用三相五线制,所有室外固定的用电设备及电箱设专门接地装置。
1.4室外电缆延墙、路边采用埋地敷设,过施工便道处穿过预留槽口;多股五芯电缆分别接进临时办公楼、宿舍、和食堂或施工总电箱;现场用电线路均采用电缆沿外围墙及基坑四周暗敷设,楼层用电线路采用托吊方式。进入室内装修施工阶段,将楼层用电回路的线缆引入楼内,每3层设一台二级配电箱,而且首、顶层必须设楼层用电箱,便于楼内施工用电。
1.5在变压器控制开关上引出电源,经过总配电箱后用主干线电缆送出。总箱配出线采用放射式和树干式相结合的配电方式

三级配电示意图如下:

开关箱

分配电箱

总配电箱

2. 临时用电计算书
2.1参数设置
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
总配电箱的同期使用系数Kx
0.8
分配电箱数量
2
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%
5
2、分箱参数

3、用电设备4、临电设备计算
2.2初步设计
(1)<施工现场临时用电安全技术规范>(JGJ46- )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- >规定制定方案,接地电阻R≤4Ω。
(5)按照<JGJ46- >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”。
2.3用电负荷
1、1号分箱设备用电负荷
(1)塔式起重机
Kx = 0.7,Cosφ = 0.65,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.65^2)^0.5 / 0.65 = 1.17
Pe = n × P × (εe/ε)^0.5 = 2.00 × 32.80 × (0.40 / 0.25)^0.5 = 82.98kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.70 × 82.98 × 1000 / (1.732 × 380 × 0.65) = 135.77A
Pjs = Kx × Pe = 0.70 × 82.98 = 58.08kW
Qjs = Pjs × tgφ = 58.08 × 1.17 = 67.91kvA
(2)施工升降机
Kx = 0.3,Cosφ = 0.6,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.6^2)^0.5 / 0.6 = 1.33
Pe = n × P × (εe/ε)^0.5 = 2.00 × 22.00 × (0.40 / 0.40)^0.5 = 44.00kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.30 × 44.00 × 1000 / (1.732 × 380 × 0.60) = 33.43A
Pjs = Kx × Pe = 0.30 × 44.00 = 13.20kW
Qjs = Pjs × tgφ = 13.20 × 1.33 = 17.60kvA
(3)自落式混凝土搅拌机
Kx = 0.75,Cosφ = 0.85,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.85^2)^0.5 / 0.85 = 0.62
Pe = n × P × (εe/ε)^0.5 = 1.00 × 7.50 × (0.40 / 0.40)^0.5 = 7.50kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.75 × 7.50 × 1000 / (1.732 × 380 × 0.85) = 10.05A
Pjs = Kx × Pe = 0.75 × 7.50 = 5.62kW
Qjs = Pjs × tgφ = 5.62 × 0.62 = 3.49kvA
(4)插入式振动器
Kx = 0.3,Cosφ = 0.7,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.7^2)^0.5 / 0.7 = 1.02
Pe = n × P × (εe/ε)^0.5 = 2.00 × 0.80 × (0.40 / 0.40)^0.5 = 1.60kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.30 × 1.60 × 1000 / (1.732 × 380 × 0.70) = 1.04A
Pjs = Kx × Pe = 0.30 × 1.60 = 0.48kW
Qjs = Pjs × tgφ = 0.48 × 1.02 = 0.49kvA
(5)钢筋调直机
Kx = 0.65,Cosφ = 0.7,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.7^2)^0.5 / 0.7 = 1.02
Pe = n × P × (εe/ε)^0.5 = 1.00 × 4.00 × (0.40 / 0.40)^0.5 = 4.00kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.65 × 4.00 × 1000 / (1.732 × 380 × 0.70) = 5.64A
Pjs = Kx × Pe = 0.65 × 4.00 = 2.60kW
Qjs = Pjs × tgφ = 2.60 × 1.02 = 2.65kvA
(6)钢筋切断机
Kx = 0.65,Cosφ = 0.7,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.7^2)^0.5 / 0.7 = 1.02
Pe = n × P × (εe/ε)^0.5 = 1.00 × 3.00 × (0.40 / 0.40)^0.5 = 3.00kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.65 × 3.00 × 1000 / (1.732 × 380 × 0.70) = 4.23A
Pjs = Kx × Pe = 0.65 × 3.00 = 1.95kW
Qjs = Pjs × tgφ = 1.95 × 1.02 = 1.99kvA
(7)钢筋弯曲机
Kx = 0.65,Cosφ = 0.7,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.7^2)^0.5 / 0.7 = 1.02
Pe = n × P × (εe/ε)^0.5 = 1.00 × 3.00 × (0.40 / 0.40)^0.5 = 3.00kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.65 × 3.00 × 1000 / (1.732 × 380 × 0.70) = 4.23A
Pjs = Kx × Pe = 0.65 × 3.00 = 1.95kW
Qjs = Pjs × tgφ = 1.95 × 1.02 = 1.99kvA
(8)交流电焊机
Kx = 0.5,Cosφ = 0.4,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.4^2)^0.5 / 0.4 = 2.29
Pe = n × P × (εe/ε)^0.5 = 1.00 × 9.00 × (0.50 / 1.00)^0.5 = 6.36kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.50 × 6.36 × 1000 / (1.732 × 380 × 0.40) = 12.09A
Pjs = Kx × Pe = 0.50 × 6.36 = 3.18kW
Qjs = Pjs × tgφ = 3.18 × 2.29 = 7.29kvA
(9)电动抹光机
Kx = 0.1,Cosφ = 0.45,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.45^2)^0.5 / 0.45 = 1.98
Pe = n × P × (εe/ε)^0.5 = 1.00 × 1.50 × (0.40 / 0.40)^0.5 = 1.50kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.10 × 1.50 × 1000 / (1.732 × 380 × 0.45) = 0.51A
Pjs = Kx × Pe = 0.10 × 1.50 = 0.15kW
Qjs = Pjs × tgφ = 0.15 × 1.98 = 0.30kvA
(10)木工圆锯
Kx = 0.65,Cosφ = 0.6,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.6^2)^0.5 / 0.6 = 1.33
Pe = n × P × (εe/ε)^0.5 = 2.00 × 3.00 × (0.40 / 0.40)^0.5 = 6.00kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.65 × 6.00 × 1000 / (1.732 × 380 × 0.60) = 9.88A
Pjs = Kx × Pe = 0.65 × 6.00 = 3.90kW
Qjs = Pjs × tgφ = 3.90 × 1.33 = 5.20kvA
(11)真空吸水泵
Kx = 0.75,Cosφ = 0.8,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.8^2)^0.5 / 0.8 = 0.75
Pe = n × P × (εe/ε)^0.5 = 2.00 × 4.00 × (0.40 / 0.40)^0.5 = 8.00kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.75 × 8.00 × 1000 / (1.732 × 380 × 0.80) = 11.40A
Pjs = Kx × Pe = 0.75 × 8.00 = 6.00kW
Qjs = Pjs × tgφ = 6.00 × 0.75 = 4.50kvA
(12)高压钠灯
Kx = 0.6,Cosφ = 0.7,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.7^2)^0.5 / 0.7 = 1.02
Pe = n × P × (εe/ε)^0.5 = 2.00 × 1.00 × (0.40 / 0.40)^0.5 = 2.00kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.60 × 2.00 × 1000 / (1.732 × 380 × 0.70) = 2.60A
Pjs = Kx × Pe = 0.60 × 2.00 = 1.20kW
Qjs = Pjs × tgφ = 1.20 × 1.02 = 1.22kvA
(13)碘钨灯
Kx = 0.6,Cosφ = 0.6,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.6^2)^0.5 / 0.6 = 1.33
Pe = n × P × (εe/ε)^0.5 = 10.00 × 0.50 × (0.40 / 0.40)^0.5 = 5.00kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.60 × 5.00 × 1000 / (1.732 × 380 × 0.60) = 7.60A
Pjs = Kx × Pe = 0.60 × 5.00 = 3.00kW
Qjs = Pjs × tgφ = 3.00 × 1.33 = 4.00kvA
(14)套丝切管机
Kx = 0.2,Cosφ = 0.65,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.65^2)^0.5 / 0.65 = 1.17
Pe = n × P × (εe/ε)^0.5 = 1.00 × 1.00 × (0.40 / 0.40)^0.5 = 1.00kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.20 × 1.00 × 1000 / (1.732 × 380 × 0.65) = 0.47A
Pjs = Kx × Pe = 0.20 × 1.00 = 0.20kW
Qjs = Pjs × tgφ = 0.20 × 1.17 = 0.23kvA
(15)1号分箱计算负荷
用电设备同期使用系数Kx=0.80;
Ijs = Kx × ΣPe / (1.732 × Ue × Cosφ) = 0.80 × 175.94 × 1000 / (1.732 × 380 × 0.75) = 285.15A;
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 = max{285.15,1.1×max(135.77,33.43,10.05,1.04,5.64,4.23,4.23,12.09,0.51,9.88,11.40,2.60,7.60,0.47,)} = 285.15A
2、2号分箱设备用电负荷
(1)塔式起重机
Kx = 0.7,Cosφ = 0.65,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.65^2)^0.5 / 0.65 = 1.17
Pe = n × P × (εe/ε)^0.5 = 1.00 × 27.50 × (0.40 / 0.25)^0.5 = 34.79kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.70 × 34.79 × 1000 / (1.732 × 380 × 0.65) = 56.92A
Pjs = Kx × Pe = 0.70 × 34.79 = 24.35kW
Qjs = Pjs × tgφ = 24.35 × 1.17 = 28.47kvA
(2)载货电梯
Kx = 0.3,Cosφ = 0.6,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.6^2)^0.5 / 0.6 = 1.33
Pe = n × P × (εe/ε)^0.5 = 4.00 × 7.50 × (0.40 / 0.40)^0.5 = 30.00kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.30 × 30.00 × 1000 / (1.732 × 380 × 0.60) = 22.79A
Pjs = Kx × Pe = 0.30 × 30.00 = 9.00kW
Qjs = Pjs × tgφ = 9.00 × 1.33 = 12.00kvA
(3)自落式混凝土搅拌机
Kx = 0.75,Cosφ = 0.85,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.85^2)^0.5 / 0.85 = 0.62
Pe = n × P × (εe/ε)^0.5 = 2.00 × 5.50 × (0.40 / 0.40)^0.5 = 11.00kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.75 × 11.00 × 1000 / (1.732 × 380 × 0.85) = 14.75A
Pjs = Kx × Pe = 0.75 × 11.00 = 8.25kW
Qjs = Pjs × tgφ = 8.25 × 0.62 = 5.11kvA
(4)插入式振动器
Kx = 0.3,Cosφ = 0.7,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.7^2)^0.5 / 0.7 = 1.02
Pe = n × P × (εe/ε)^0.5 = 2.00 × 0.80 × (0.40 / 0.40)^0.5 = 1.60kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.30 × 1.60 × 1000 / (1.732 × 380 × 0.70) = 1.04A
Pjs = Kx × Pe = 0.30 × 1.60 = 0.48kW
Qjs = Pjs × tgφ = 0.48 × 1.02 = 0.49kvA
(5)钢筋调直机
Kx = 0.65,Cosφ = 0.7,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.7^2)^0.5 / 0.7 = 1.02
Pe = n × P × (εe/ε)^0.5 = 1.00 × 4.00 × (0.40 / 0.40)^0.5 = 4.00kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.65 × 4.00 × 1000 / (1.732 × 380 × 0.70) = 5.64A
Pjs = Kx × Pe = 0.65 × 4.00 = 2.60kW
Qjs = Pjs × tgφ = 2.60 × 1.02 = 2.65kvA
(6)钢筋切断机
Kx = 0.65,Cosφ = 0.7,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.7^2)^0.5 / 0.7 = 1.02
Pe = n × P × (εe/ε)^0.5 = 1.00 × 7.00 × (0.40 / 0.40)^0.5 = 7.00kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.65 × 7.00 × 1000 / (1.732 × 380 × 0.70) = 9.88A
Pjs = Kx × Pe = 0.65 × 7.00 = 4.55kW
Qjs = Pjs × tgφ = 4.55 × 1.02 = 4.64kvA
(7)钢筋弯曲机
Kx = 0.65,Cosφ = 0.7,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.7^2)^0.5 / 0.7 = 1.02
Pe = n × P × (εe/ε)^0.5 = 1.00 × 3.00 × (0.40 / 0.40)^0.5 = 3.00kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.65 × 3.00 × 1000 / (1.732 × 380 × 0.70) = 4.23A
Pjs = Kx × Pe = 0.65 × 3.00 = 1.95kW
Qjs = Pjs × tgφ = 1.95 × 1.02 = 1.99kvA
(8)交流电焊机
Kx = 0.5,Cosφ = 0.4,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.4^2)^0.5 / 0.4 = 2.29
Pe = n × P × (εe/ε)^0.5 = 1.00 × 9.00 × (0.50 / 1.00)^0.5 = 6.36kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.50 × 6.36 × 1000 / (1.732 × 380 × 0.40) = 12.09A
Pjs = Kx × Pe = 0.50 × 6.36 = 3.18kW
Qjs = Pjs × tgφ = 3.18 × 2.29 = 7.29kvA
(9)木工圆锯
Kx = 0.65,Cosφ = 0.6,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.6^2)^0.5 / 0.6 = 1.33
Pe = n × P × (εe/ε)^0.5 = 2.00 × 3.00 × (0.40 / 0.40)^0.5 = 6.00kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.65 × 6.00 × 1000 / (1.732 × 380 × 0.60) = 9.88A
Pjs = Kx × Pe = 0.65 × 6.00 = 3.90kW
Qjs = Pjs × tgφ = 3.90 × 1.33 = 5.20kvA
(10)真空吸水泵
Kx = 0.75,Cosφ = 0.8,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.8^2)^0.5 / 0.8 = 0.75
Pe = n × P × (εe/ε)^0.5 = 2.00 × 4.00 × (0.40 / 0.40)^0.5 = 8.00kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.75 × 8.00 × 1000 / (1.732 × 380 × 0.80) = 11.40A
Pjs = Kx × Pe = 0.75 × 8.00 = 6.00kW
Qjs = Pjs × tgφ = 6.00 × 0.75 = 4.50kvA
(11)高压钠灯
Kx = 0.6,Cosφ = 0.7,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.7^2)^0.5 / 0.7 = 1.02
Pe = n × P × (εe/ε)^0.5 = 1.00 × 1.00 × (0.40 / 0.40)^0.5 = 1.00kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.60 × 1.00 × 1000 / (1.732 × 380 × 0.70) = 1.30A
Pjs = Kx × Pe = 0.60 × 1.00 = 0.60kW
Qjs = Pjs × tgφ = 0.60 × 1.02 = 0.61kvA
(12)碘钨灯
Kx = 0.6,Cosφ = 0.6,tgφ = (1 - Cosφ^2)^0.5/ Cosφ = (1 - 0.6^2)^0.5 / 0.6 = 1.33
Pe = n × P × (εe/ε)^0.5 = 10.00 × 0.50 × (0.40 / 0.40)^0.5 = 5.00kW
Ij1 = Kx × Pe / (1.732 × Ue × cosφ) = 0.60 × 5.00 × 1000 / (1.732 × 380 × 0.60) = 7.60A
Pjs = Kx × Pe = 0.60 × 5.00 = 3.00kW
Qjs = Pjs × tgφ = 3.00 × 1.33 = 4.00kvA
(13)2号分箱计算负荷
用电设备同期使用系数Kx=0.80;
Ijs = Kx × ΣPe / (1.732 × Ue × Cosφ) = 0.80 × 117.75 × 1000 / (1.732 × 380 × 0.75) = 190.83A;
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 = max{190.83,1.1×max(56.92,22.79,14.75,1.04,5.64,9.88,4.23,12.09,9.88,11.40,1.30,7.60,)} = 190.83A
3、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 = 0.80
总的有功功率: Pjs = Kx×ΣPjs = 0.80 × 169.38 = 135.51kW
总的无功功率: Qjs = Kx×ΣQjs = 0.80 × 195.82 = 156.66kvar
总的视在功率: Sjs = (Pjs^2 + Qjs^2)^0.5 = (135.51 × 135.51 + 156.66 × 156.66)^0.5 = 207.13kVA
总的计算电流计算:Ijs = Sjs × 1000 /(1.732 × Ue) = 207.13 × 1000 / (1.732 × 380) = 314.71A 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 = max{314.71,1.1×max(285.15,190.83,)} = 314.71A
2.4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 = Kx×Pe/(1.732×Ue×cosφ) = 135.77A
(1)选择YJV-0.6/1kV-3×25+2×16,安全载流量为136A≥135.77A。
(2)选择开关箱内开关为HR3-400/150,其熔体额定电流为Ir = 150A ≥ 135.77A,漏电保护器为DZL25-200/160。
1.2、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:
Ij2 = Kx×Pe/(1.732×Ue×cosφ) = 33.43A
(1)选择VV22-3×10+1×6,安全载流量为64A≥33.43A。
(2)选择开关箱内开关为HR6-160/35,其熔体额定电流为Ir = 35A ≥ 33.43A,漏电保护器为3KM1L-63/40。
1.3、自落式混凝土搅拌机导线及开关箱内电气设备选择
根据计算负荷,知自落式混凝土搅拌机计算电流为:
Ij3 = Kx×Pe/(1.732×Ue×cosφ) = 10.05A
(1)选择VV22-3×10+1×6,安全载流量为64A≥10.05A。
(2)选择开关箱内开关为HH3-15/15,其熔体额定电流为Ir = 15A ≥ 10.05A,漏电保护器为DZ15LE-63/15。
1.4、插入式振动器导线及开关箱内电气设备选择
根据计算负荷,知插入式振动器计算电流为:
Ij4 = Kx×Pe/(1.732×Ue×cosφ) = 1.04A
(1)选择VV22-3×10+1×6,安全载流量为64A≥1.04A。
(2)选择开关箱内开关为HR5-100/4,其熔体额定电流为Ir = 4A ≥ 1.04A,漏电保护器为DZ15LE-40/6。
1.5、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:
Ij5 = Kx×Pe/(1.732×Ue×cosφ) = 5.64A
(1)选择VV22-3×10+1×6,安全载流量为64A≥5.64A。
(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。
1.6、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:
Ij6 = Kx×Pe/(1.732×Ue×cosφ) = 4.23A
(1)选择VV22-3×10+1×6,安全载流量为64A≥4.23A。
(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。
1.7、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:
Ij7 = Kx×Pe/(1.732×Ue×cosφ) = 4.23A
(1)选择VV22-3×10+1×6,安全载流量为64A≥4.23A。
(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。
1.8、交流电焊机导线及开关箱内电气设备选择
根据计算负荷,知交流电焊机计算电流为:
Ij8 = Kx×Pe/(1.732×Ue×cosφ) = 12.09A
(1)选择VV22-3×10+1×6,安全载流量为64A≥12.09A。
(2)选择开关箱内开关为HH3-15/15,其熔体额定电流为Ir = 15A ≥ 12.09A,漏电保护器为DZ15LE-63/15。
1.9、电动抹光机导线及开关箱内电气设备选择
根据计算负荷,知电动抹光机计算电流为:
Ij9 = Kx×Pe/(1.732×Ue×cosφ) = 0.51A
(1)选择VV22-3×10+1×6,安全载流量为64A≥0.51A。
(2)选择开关箱内开关为HR5-100/4,其熔体额定电流为Ir = 4A ≥ 0.51A,漏电保护器为DZ15LE-40/6。
1.10、木工圆锯导线及开关箱内电气设备选择
根据计算负荷,知木工圆锯计算电流为:
Ij10 = Kx×Pe/(1.732×Ue×cosφ) = 9.88A
(1)选择VV22-3×10+1×6,安全载流量为64A≥9.88A。
(2)选择开关箱内开关为HR5-100/10,其熔体额定电流为Ir = 10A ≥ 9.88A,漏电保护器为DZ15LE-63/10。
1.11、真空吸水泵导线及开关箱内电气设备选择
根据计算负荷,知真空吸水泵计算电流为:
Ij11 = Kx×Pe/(1.732×Ue×cosφ) = 11.40A
(1)选择VV22-3×10+1×6,安全载流量为64A≥11.40A。
(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。
1.12、高压钠灯导线及开关箱内电气设备选择
根据计算负荷,知高压钠灯计算电流为:
Ij12 = Kx×Pe/(1.732×Ue×cosφ) = 2.60A
(1)选择VV22-3×10+1×6,安全载流量为64A≥2.60A。
(2)选择开关箱内开关为HR5-100/4,其熔体额定电流为Ir = 4A ≥ 2.60A,漏电保护器为DZ15LE-40/6。
1.13、碘钨灯导线及开关箱内电气设备选择
根据计算负荷,知碘钨灯计算电流为:
Ij13 = Kx×Pe/(1.732×Ue×cosφ) = 7.60A
(1)选择VV22-3×10+1×6,安全载流量为64A≥7.60A。
(2)选择开关箱内开关为HR5-100/10,其熔体额定电流为Ir = 10A ≥ 7.60A,漏电保护器为DZ15LE-63/10。
1.14、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:
Ij14 = Kx×Pe/(1.732×Ue×cosφ) = 0.47A
(1)选择VV22-3×10+1×6,安全载流量为64A≥0.47A。
(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。
1.15、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 = 285.15A
(1)选择电缆YJV-0.6/1kV-3×95+2×50,安全载流量为286A ≥ 285.15A,电缆截面面积为95mm2。
按照允许电压降为5%,导线截面为:
S1 = Kx1 × ΣPe × L1 /(C × 5 )= 0.80 × 175.94 × 50.00 / (77.00 × 5.00) = 18.28mm^2 ≤ 95mm^2
(2) 选择开关箱内开关为HR5-400/300,其熔体额定电流为Ir = 300A ≥ 285.15A,漏电保护器为DZ20L-630/315。
符合要求
2、2号干线上导线及开关箱内电气设备选择
2.1、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 = Kx×Pe/(1.732×Ue×cosφ) = 56.92A
(1)选择VV22-3×10+1×6,安全载流量为64A≥56.92A。
(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。
2.2、载货电梯导线及开