工程临时用电专项施工方案.doc

临时用电专项施工方案第一章 编制依据及原则第一节 编制依据一、设计文件及招标文件1.广东建筑艺术设计院有限公司提供的凤冈.嶺秀郡工程施工图纸；2.同凤冈县龙祥房地产开发有限公司签订的凤冈.嶺秀郡工程施工总承包文件。二、主要法规及和安全技术标准：1.中华人民共和国建筑法；2.建设工程质量管理条理；3.中华人民共和国环境保护法；4.中华人民共和国合同法；5.中华人民共和国消防法；6.中华人民共和国安全生产法；7.中华人民共和国职业病防治法；8.建设工程安全生产管理条例（国务院393号令）；9.贵州省建筑工地文明施工标准。三、主要规程、规范1.建筑施工安全检查标准（JGJ592011）；2.施工现场临时用电安全技术规范（JGJ462005）；3.建设工程施工现场供用电安全规范（GB50194-93）；4.建筑机械使用安全技术规范（JGJ33-2001）。第二节 编制原则1.认真贯彻党和国家对基本建设的各项方针政策，严格执行基本建设程序。2.根据工程承包合同的要求，以确保履约为前提，结合工程及施工力量的实际情况，作好施工部署和施工方案的选定。3.统筹全局，组织好施工协作，积极主动与拆迁单位配合，提供方便，配合管路拆迁。4.合理安排施工顺序，组织好平行流水及主要工作交叉作业。5.质量第一，确保安全，对重点和关键部位的质量及安全制定有效措施。6.积极采用新技术、新工艺、新材料、新设备，提高劳动生产率。7.科学地安排好人力、物力的综合平衡调配，作好季节性施工安排，力争全年均衡生产。8.制定环保、环卫措施，减少环境污染和扰民，做好文明施工。第二章 施工现场临时用电设计一、施工条件1.本工程场地平整基本完成，施工用水用电满足施工要求。2.根据场地所处地区的地理位置，该地区交通便利，建筑物质资料完全，生活物质资料丰富；三大材的来源从材料质量和供应能力均能满足要求。3.气候条件较差，冬季雨雪天气施工较多。二、建设规模概况1.凤冈县龙祥房地产开发公司建设的凤冈.嶺秀郡工程，位于凤冈县龙泉镇田坝村。计划建成6栋高层住宅楼、一栋商业楼及地下车库等。总用地面积25143m2,总建筑面积.68 m2（包括:地下车库建筑面积19355.74m2、地上建筑面积m2 ,其中居住面积.6 m2、配套用房684 m2、公建5319.3 m2、其他126.38 m2,停车位691个，（其中地下523个）,建筑密度：25.1,容积率：5，绿地率：40.52。各单位工程建设概况详下各单位工程综合技术经济指标项 目建筑面积(m2)建筑层数(F)±0.0(M)砌体质量控制等级一、1#楼19947.84731商业部分1884.753住宅部分18016.628B电梯机房46.49B二、2#楼20462.87731.3商业部分3B住宅部分18271.9827B电梯机房46.53B三、3#楼20581.9748.3B住宅部分20535.4132B电梯机房46.53B四、4#楼20581.9749.3B住宅部分20535.4132电梯机房46.53B五、5#楼20975.35749.0B住宅部分20928.8231B电梯机房46.53六、6#楼20603.36743.8住宅部分20928.8232电梯机房46.49七、7#楼（商业）2560.783731八、车库19355.743733.85合计.682、本工程建筑设计等级为一级，结构设计合理使用年限为50年，1#-6#为高层建筑，7#楼为框架结构、1#-6#为剪力墙结构，安全等级为二级，建筑抗震设防类别为丙类（标准设防类），抗震设防烈度为6度，建筑物场地类别为类。3.砌体部分施工质量控制等级为B级。三、工程概况(1)地理位置：本工程位于贵州省遵义市凤冈县龙泉镇三坝村。(2)贵州省遵义市凤冈县龙祥房地产开发公司的凤冈嶺秀郡项目位于凤冈县龙泉镇。总建筑面积 m2（包括:地上建筑面积m2 ,地下建筑面积m2),停车位691个，（其中地下523个）,建筑密度：15.06,容积率：0.51，绿地率：40.52。(3)在施工现场布置6台QTZ-63塔吊，6台施工电梯，共布置个1砼搅拌场，6个砂浆搅拌场；设置6个钢筋制作房、6个木工加工房，共设8个二级配电箱；每一楼栋设10个二级分箱用于楼层施工，主干线设在变压器旁的总配电房设一个总配电柜；配电柜下设1#-8#配电箱，方便供1#-6#楼及7#箱（办公生活区）、8#箱（砼集中搅拌场）； (4)根据施工组织设计临时用电相关设计，上升阶段用电量大于基础阶段用电量，现只针对上升阶段进行施工临时用电设计。四、施工用电设计(一)1#总配电设计-1、2、3#楼使用A、施工现场用电量统计表序号设备名称铭牌功率(kW)安装功率(kW)数量合计功率(kW)1电渣压力焊机31.2031.20262.402电焊机11.00kVA3.13412.523振捣棒1.101.1066.604混凝土浇筑照明1.001.0088.005圆盘锯5.005.00315.006砖石工程照明0.200.20204.007强制式混凝土搅拌机11.0011.00111.008混凝土搅拌站照明1.001.0033.009钢筋切断机5.505.50211.0010钢筋弯曲机1.001.0022.0011钢筋滚轧直螺纹套丝机(GY-40C-114.00kVA1.6023.2012钢筋调直机2.802.8025.6013钢筋室外加工照明1.001.0044.0014木工电刨_MIB2-80/10.700.7021.4015木材加工锯木照明1.001.0033.0016塔式起重机_QTZ6340.0050.603151.8017建筑施工外用电梯44.0044.00288.0018抹灰照明0.200.20204.0019抹灰工程照明0.200.20102.0020强制式混凝土搅拌机_JW25011.0011.00111.0021混凝土搅拌站照明5.005.00210.0022建筑施工电梯44.0044.00144.0023电渣压力焊机31.20kVA8.8818.8824砖石工程照明1.001.0066.0025混凝土搅拌机7.507.5017.5026钢筋室外加工照明4.004.0014.0027木材加工锯木照明3.003.0013.0028合计492.9B、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，总线采用电缆线空气明敷，1#二级配电箱采用电缆线空气明敷，2#二级配电箱采用电缆线空气明敷，3#楼二级配电箱采用电缆线空气明敷，1#楼层分配箱采用导线架空敷设，1#楼砌筑照明分配箱采用电缆线空气明敷，1#楼搅拌站分配箱采用电缆线空气明敷，1、2#楼钢筋加工场分配箱采用电缆线空气明敷，1、2#楼木工加工分配箱采用电缆线空气明敷，1#楼塔机分配箱采用电缆线空气明敷，1#抹灰照明分配箱采用电缆线空气明敷，2#楼砌筑照明分配箱采用电缆线空气明敷，2#楼抹灰照明分配箱采用电缆线空气明敷，2#楼搅拌机分配箱采用电缆线空气明敷，2#楼塔机分配箱采用导线架空敷设，2#楼层分配箱采用电缆线空气明敷，3#楼层分配箱采用导线架空敷设，3#楼砌筑照明分配箱采用电缆线空气明敷，3#楼抹灰照明采用电缆线空气明敷，3#楼搅拌机分配箱采用导线架空敷设，3#塔机分配箱采用导线架空敷设，3#楼钢筋加工房分配箱采用电缆线空气明敷，3#楼木工加工照明采用电缆线空气明敷，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，两极防护。(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)电渣压力焊机组Kx = 0.45，Cos = 0.40，tg = 2.29Pjs = Kx×Pe = 0.45× 31.20 = 14.04kWQjs = Pjs×tg = 14.04× 2.29 = 32.17kVar(2)电焊机组Kx = 0.45，Cos = 0.45，tg = 1.98将Jc = 40%统一换算到Jc = 100%的额定容量Pe = n×(Jc/Jc1)1/2×Pn = 1×(0.40/1.00)1/2×4.95 = 3.13kWPjs = Kx×Pe = 0.45× 3.13 = 1.41kWQjs = Pjs×tg = 1.41× 1.98 = 2.80kVar(3)振捣棒组Kx = 0.70，Cos = 0.70，tg = 1.02Pjs = Kx×Pe = 0.70× 2.20 = 1.54kWQjs = Pjs×tg = 1.54× 1.02 = 1.57kVar(4)混凝土浇筑照明组Kx = 1.00，Cos = 1.00，tg = 0Pjs = Kx×Pe = 1.00× 4.00 = 4.00kWQjs = Pjs×tg = 4.00× 0 = 0.00kVar(5)圆盘锯组Kx = 0.70，Cos = 0.70，tg = 1.02Pjs = Kx×Pe = 0.70× 5.00 = 3.50kWQjs = Pjs×tg = 3.50× 1.02 = 3.57kVar(6)砖石工程照明组Kx = 1.00，Cos = 1.00，tg = 0Pjs = Kx×Pe = 1.00× 2.00 = 2.00kWQjs = Pjs×tg = 2.00× 0 = 0.00kVar(7)强制式混凝土搅拌机组Kx = 0.70，Cos = 0.68，tg = 1.08Pjs = Kx×Pe = 0.70× 11.00 = 7.70kWQjs = Pjs×tg = 7.70× 1.08 = 8.30kVar(8)混凝土搅拌站照明组Kx = 1.00，Cos = 1.00，tg = 0Pjs = Kx×Pe = 1.00× 3.00 = 3.00kWQjs = Pjs×tg = 3.00× 0 = 0.00kVar(9)钢筋切断机组Kx = 0.70，Cos = 0.40，tg = 2.29Pjs = Kx×Pe = 0.70× 5.50 = 3.85kWQjs = Pjs×tg = 3.85× 2.29 = 8.82kVar(10)钢筋弯曲机组Kx = 0.70，Cos = 0.40，tg = 2.29Pjs = Kx×Pe = 0.70× 1.00 = 0.70kWQjs = Pjs×tg = 0.70× 2.29 = 1.60kVar(11)钢筋滚轧直螺纹套丝机(GY-40C-11组Kx = 0.70，Cos = 0.40，tg = 2.29Pjs = Kx×Pe = 0.70× 1.60 = 1.12kWQjs = Pjs×tg = 1.12× 2.29 = 2.57kVar(12)钢筋调直机组Kx = 0.70，Cos = 0.40，tg = 2.29Pjs = Kx×Pe = 0.70× 2.80 = 1.96kWQjs = Pjs×tg = 1.96× 2.29 = 4.49kVar(13)钢筋室外加工照明组Kx = 1.00，Cos = 1.00，tg = 0Pjs = Kx×Pe = 1.00× 4.00 = 4.00kWQjs = Pjs×tg = 4.00× 0 = 0.00kVar(14)木工电刨_MIB2-80/1组Kx = 0.70，Cos = 0.70，tg = 1.02Pjs = Kx×Pe = 0.70× 0.70 = 0.49kWQjs = Pjs×tg = 0.49× 1.02 = 0.50kVar(15)木材加工锯木照明组Kx = 1.00，Cos = 1.00，tg = 0Pjs = Kx×Pe = 1.00× 3.00 = 3.00kWQjs = Pjs×tg = 3.00× 0 = 0.00kVar(16)塔式起重机_QTZ63组Kx = 0.30，Cos = 0.70，tg = 1.02将Jc = 40%统一换算到Jc = 25%的额定容量Pe = n×(Jc/Jc1)1/2×Pn = 1×(0.40/0.25)1/2×40.00 = 50.60kWPjs = Kx×Pe = 0.30× 50.60 = 15.18kWQjs = Pjs×tg = 15.18× 1.02 = 15.49kVar(17)建筑施工外用电梯组Kx = 0.30，Cos = 0.70，tg = 1.02Pjs = Kx×Pe = 0.30× 44.00 = 13.20kWQjs = Pjs×tg = 13.20× 1.02 = 13.47kVar(18)抹灰照明组Kx = 1.00，Cos = 1.00，tg = 0Pjs = Kx×Pe = 1.00× 2.00 = 2.00kWQjs = Pjs×tg = 2.00× 0 = 0.00kVar(19)砖石工程照明组Kx = 1.00，Cos = 1.00，tg = 0Pjs = Kx×Pe = 1.00× 2.00 = 2.00kWQjs = Pjs×tg = 2.00× 0 = 0.00kVar(20)抹灰工程照明组Kx = 1.00，Cos = 1.00，tg = 0Pjs = Kx×Pe = 1.00× 2.00 = 2.00kWQjs = Pjs×tg = 2.00× 0 = 0.00kVar(21)强制式混凝土搅拌机_JW250组Kx = 0.70，Cos = 0.68，tg = 1.08Pjs = Kx×Pe = 0.70× 11.00 = 7.70kWQjs = Pjs×tg = 7.70× 1.08 = 8.30kVar(22)混凝土搅拌站照明组Kx = 1.00，Cos = 1.00，tg = 0Pjs = Kx×Pe = 1.00× 5.00 = 5.00kWQjs = Pjs×tg = 5.00× 0 = 0.00kVar(23)塔式起重机_QTZ63组Kx = 0.30，Cos = 0.70，tg = 1.02将Jc = 40%统一换算到Jc = 25%的额定容量Pe = n×(Jc/Jc1)1/2×Pn = 1×(0.40/0.25)1/2×40.00 = 50.60kWPjs = Kx×Pe = 0.30× 50.60 = 15.18kWQjs = Pjs×tg = 15.18× 1.02 = 15.49kVar(24)建筑施工电梯组Kx = 0.30，Cos = 0.70，tg = 1.02Pjs = Kx×Pe = 0.30× 44.00 = 13.20kWQjs = Pjs×tg = 13.20× 1.02 = 13.47kVar(25)振捣棒组Kx = 0.70，Cos = 0.70，tg = 1.02Pjs = Kx×Pe = 0.70× 2.20 = 1.54kWQjs = Pjs×tg = 1.54× 1.02 = 1.57kVar(26)电焊机组Kx = 0.45，Cos = 0.45，tg = 1.98将Jc = 40%统一换算到Jc = 100%的额定容量Pe = n×(Jc/Jc1)1/2×Pn = 1×(0.40/1.00)1/2×4.95 = 3.13kWPjs = Kx×Pe = 0.45× 3.13 = 1.41kWQjs = Pjs×tg = 1.41× 1.98 = 2.80kVar(27)圆盘锯组Kx = 0.70，Cos = 0.70，tg = 1.02Pjs = Kx×Pe = 0.70× 5.00 = 3.50kWQjs = Pjs×tg = 3.50× 1.02 = 3.57kVar(28)电焊机组Kx = 0.45，Cos = 0.45，tg = 1.98将Jc = 40%统一换算到Jc = 100%的额定容量Pe = n×(Jc/Jc1)1/2×Pn = 1×(0.40/1.00)1/2×4.95 = 3.13kWPjs = Kx×Pe = 0.45× 3.13 = 1.41kWQjs = Pjs×tg = 1.41× 1.98 = 2.80kVar(29)电渣压力焊机组Kx = 0.45，Cos = 0.45，tg = 1.98将Jc = 40%统一换算到Jc = 100%的额定容量Pe = n×(Jc/Jc1)1/2×Pn = 1×(0.40/1.00)1/2×14.04 = 8.88kWPjs = Kx×Pe = 0.45× 8.88 = 4.00kWQjs = Pjs×tg = 4.00× 1.98 = 7.93kVar(30)振捣棒组Kx = 0.70，Cos = 0.70，tg = 1.02Pjs = Kx×Pe = 0.70× 2.20 = 1.54kWQjs = Pjs×tg = 1.54× 1.02 = 1.57kVar(31)电焊机组Kx = 0.45，Cos = 0.45，tg = 1.98将Jc = 40%统一换算到Jc = 100%的额定容量Pe = n×(Jc/Jc1)1/2×Pn = 1×(0.40/1.00)1/2×4.95 = 3.13kWPjs = Kx×Pe = 0.45× 3.13 = 1.41kWQjs = Pjs×tg = 1.41× 1.98 = 2.80kVar(32)电渣压力焊机组Kx = 0.45，Cos = 0.40，tg = 2.29Pjs = Kx×Pe = 0.45× 31.20 = 14.04kWQjs = Pjs×tg = 14.04× 2.29 = 32.17kVar(33)圆盘锯组Kx = 0.70，Cos = 0.70，tg = 1.02Pjs = Kx×Pe = 0.70× 5.00 = 3.50kWQjs = Pjs×tg = 3.50× 1.02 = 3.57kVar(34)混凝土浇筑照明组Kx = 1.00，Cos = 1.00，tg = 0Pjs = Kx×Pe = 1.00× 4.00 = 4.00kWQjs = Pjs×tg = 4.00× 0 = 0.00kVar(35)砖石工程照明组Kx = 1.00，Cos = 1.00，tg = 0Pjs = Kx×Pe = 1.00× 6.00 = 6.00kWQjs = Pjs×tg = 6.00× 0 = 0.00kVar(36)抹灰照明组Kx = 1.00，Cos = 1.00，tg = 0Pjs = Kx×Pe = 1.00× 2.00 = 2.00kWQjs = Pjs×tg = 2.00× 0 = 0.00kVar(37)混凝土搅拌机组Kx = 0.70，Cos = 0.68，tg = 1.08Pjs = Kx×Pe = 0.70× 7.50 = 5.25kWQjs = Pjs×tg = 5.25× 1.08 = 5.66kVar(38)混凝土搅拌站照明组Kx = 1.00，Cos = 1.00，tg = 0Pjs = Kx×Pe = 1.00× 5.00 = 5.00kWQjs = Pjs×tg = 5.00× 0 = 0.00kVar(39)塔式起重机_QTZ63组Kx = 0.30，Cos = 0.70，tg = 1.02将Jc = 40%统一换算到Jc = 25%的额定容量Pe = n×(Jc/Jc1)1/2×Pn = 1×(0.40/0.25)1/2×40.00 = 50.60kWPjs = Kx×Pe = 0.30× 50.60 = 15.18kWQjs = Pjs×tg = 15.18× 1.02 = 15.49kVar(40)建筑施工外用电梯组Kx = 0.30，Cos = 0.70，tg = 1.02Pjs = Kx×Pe = 0.30× 44.00 = 13.20kWQjs = Pjs×tg = 13.20× 1.02 = 13.47kVar(41)钢筋调直机组Kx = 0.70，Cos = 0.40，tg = 2.29Pjs = Kx×Pe = 0.70× 2.80 = 1.96kWQjs = Pjs×tg = 1.96× 2.29 = 4.49kVar(42)钢筋切断机组Kx = 0.70，Cos = 0.40，tg = 2.29Pjs = Kx×Pe = 0.70× 5.50 = 3.85kWQjs = Pjs×tg = 3.85× 2.29 = 8.82kVar(43)钢筋弯曲机组Kx = 0.70，Cos = 0.40，tg = 2.29Pjs = Kx×Pe = 0.70× 1.00 = 0.70kWQjs = Pjs×tg = 0.70× 2.29 = 1.60kVar(44)钢筋滚轧直螺纹套丝机(GY-40C-11组Kx = 0.70，Cos = 0.40，tg = 2.29Pjs = Kx×Pe = 0.70× 1.60 = 1.12kWQjs = Pjs×tg = 1.12× 2.29 = 2.57kVar(45)钢筋室外加工照明组Kx = 1.00，Cos = 1.00，tg = 0Pjs = Kx×Pe = 1.00× 4.00 = 4.00kWQjs = Pjs×tg = 4.00× 0 = 0.00kVar(46)木材加工锯木照明组Kx = 1.00，Cos = 1.00，tg = 0Pjs = Kx×Pe = 1.00× 3.00 = 3.00kWQjs = Pjs×tg = 3.00× 0 = 0.00kVar(47)木工电刨_MIB2-80/1组Kx = 0.70，Cos = 0.70，tg = 1.02Pjs = Kx×Pe = 0.70× 0.70 = 0.49kWQjs = Pjs×tg = 0.49× 1.02 = 0.50kVar(48)总的计算负荷计算，干线同期系数取 Kx = 0.90总的有功功率Pjs = 1.1×Kx×Pjs = 1.1×0.90×(14.04+1.41+1.54+4.00+3.50+2.00+7.70+3.00+3.85+0.70+1.12+1.96+4.00+0.49+3.00+15.18+13.20+2.00+2.00+2.00+7.70+5.00+15.18+13.20+1.54+1.41+3.50+1.41+4.00+1.54+1.41+14.04+3.50+4.00+6.00+2.00+5.25+5.00+15.18+13.20+1.96+3.85+0.70+1.12+4.00+3.00+0.49) = 223.60kW总的无功功率Qjs =1.1×Kx×Qjs = 1.1×0.90×(32.17+2.80+1.57+0.00+3.57+0.00+8.30+0.00+8.82+1.60+2.57+4.49+0.00+0.50+0.00+15.49+13.47+0.00+0.00+0.00+8.30+0.00+15.49+13.47+1.57+2.80+3.57+2.80+7.93+1.57+2.80+32.17+3.57+0.00+0.00+0.00+5.66+0.00+15.49+13.47+4.49+8.82+1.60+2.57+0.00+0.00+0.50) = 241.53kVar总的视在功率Sjs = (Pjs2+Qjs2)1/2 = (223.602+241.532)1/2 = 329.14kVA总的计算电流计算Ijs = Sjs/(1.732×Ue) = 329.14/(1.732×0.38) = 500.09A3、选择变压器根据计算的总的视在功率选择SL7-400/10 型三相电力变压器，它的容量为400.00kVA329.14kVA×1.20(增容系数)能够满足使用要求，其高压侧电压为10.00kV同施工现场外的高压架空线路的电压级别一致。4、选择总箱的进线截面及进线开关(1)选择导线截面： i) 按安全载流量： 上面已经计算出总计算电流Ijs = 500.09A ii) 按允许电压降： S = 1.1×Kx×(PL)/CU = 1.1 ×0.90×9470.80/(77.00×5.00) = 24.35mm2 iii) 根据前面两条： 电缆线空气明敷，铜芯交联聚乙烯(铠装)绝缘电缆线YJV3×240+2×120 ，其安全载流量为540A，截面面积240mm2，能够满足使用要求。(2)选择总进线开关：DZ10-600/3 ，其脱扣器整定电流值为Ir = 480A。(3)选择总箱中漏电保护器：ZBM1-800/630 。5、1#二级配电箱线路上导线截面及分配箱、开关箱内电气设备选择在选择前应对照平面图和系统图先由用电设备至开关箱计算，再由开关箱至分配箱计算，选择导线及开关设备。1#楼层分配箱至开关箱，开关箱至用电设备采用铜芯橡皮绝缘导线架空敷设。1#楼砌筑照明分配箱至开关箱，开关箱至用电设备采用铜芯交联聚乙烯(铠装)绝缘电缆线空气明敷。1#楼搅拌站分配箱至开关箱，开关箱至用电设备采用铜芯交联聚乙烯(铠装)绝缘电缆线空气明敷。1、2#楼钢筋加工场分配箱至开关箱，开关箱至用电设备采用铜芯交联聚乙烯(铠装)绝缘电缆线空气明敷。1、2#楼木工加工分配箱至开关箱，开关箱至用电设备采用铜芯交联聚乙烯(铠装)绝缘电缆线空气明敷。1#楼塔机分配箱至开关箱，开关箱至用电设备采用铜芯交联聚乙烯(铠装)绝缘电缆线空气明敷。1#抹灰照明分配箱至开关箱，开关箱至用电设备采用铜芯交联聚乙烯(铠装)绝缘电缆线空气明敷。(1)电渣压力焊机开关箱至电渣压力焊机导线截面及开关箱内电气设备选择i)计算电流Kx 取 1.0，Cos = 0.40Ijs = Kx×Pe/(1.732×Ue×Cos) = 1.0×31.20/(1.732×0.38×0.40) = 118.51Aii)选择导线按允许电压降：S = Kx×(PL)/CU = 1.0×468.00/(77.00×5.00) = 1.22mm2选择BX-3×25+2×16，空气明敷时其安全载流量为145A。iii)选择电气设备选择开关箱内开关为DZ10-250/3 ，其脱扣器整定电流值为Ir = 200A。漏电保护器为ZBM1-225/125 。(2)电焊机开关箱至电焊机导线截面及开关箱内电气设备选择i)计算电流Kx 取 1.0，Cos = 0.45Ijs = Kx×Pe/(1.732×Ue×Cos) = 1.0×3.13/(1.732×0.38×0.45) = 10.57Aii)选择导线按允许电压降：S = Kx×(PL)/CU = 1.0×74.25/(77.00×5.00) = 0.19mm2选择BX-3×1+2×6，空气明敷时其安全载流量为21A。iii)选择电气设备选择开关箱内开关为DZ5-20/3 ，其脱扣器整定电流值为Ir = 16A。漏电保护器为RMM1-63/12 。(3)振捣棒开关箱至振捣棒导线截面及开关箱内电气设备选择i)计算电流Kx 取 1.0，Cos = 0.70Ijs = Kx×Pe/(1.732×Ue×Cos) = 1.0×1.10/(1.732×0.38×0.70) = 2.39Aii)选择导线按允许电压降：S = Kx×(PL)/CU = 1.0×16.50/(77.00×5.00) = 0.04mm2选择BX-3×1+2×6，空气明敷时其安全载流量为21A。iii)选择电气设备选择开关箱内开关为DZ5-20/3 ，其脱扣器整定电流值为Ir = 16A。漏电保护器为ZBM1-63/10 。(4)混凝土浇筑照明开关箱至混凝土浇筑照明导线截面及开关箱内电气设备选择i)计算电流Kx 取 1.0，Cos = 1.00Ijs = Kx×Pe/(1.732×Ue×Cos) = 1.0×1.00/(1.732×0.38×1.00) = 1.52Aii)选择导线按允许电压降：S = Kx×(PL)/CU = 1.0×15.00/(77.00×5.00) = 0.04mm2选择BX-3×1+1×6+1×1，空气明敷时其安全载流量为21A。iii)选择电气设备选择开关箱内开关为DZ5-20/3 ，其脱扣器整定电流值为Ir = 16A。漏电保护器为ZBM1-63/10 。(5)圆盘锯开关箱至圆盘锯导线截面及开关箱内电气设备选择i)计算电流Kx 取 1.0，Cos = 0.70Ijs = Kx×Pe/(1.732×Ue×Cos) = 1.0×5.00/(1.732×0.38×0.70) = 10.85Aii)选择导线按允许电压降：S = Kx×(PL)/CU = 1.0×75.00/(77.00×5.00) = 0.19mm2选择BX-3×1+2×6，空气明敷时其安全载流量为21A。iii)选择电气设备选择开关箱内开关为DZ5-20/3 ，其脱扣器整定电流值为Ir = 16A。漏电保护器为RMM1-63/12 。(6)砖石工程照明开关箱至砖石工程照明导线截面及开关箱内电气设备选择i)计算电流Kx 取 1.0，Cos = 1.00Ijs = Kx×Pe/(1.732×Ue×Cos) = 1.0×0.20/(1.732×0.38×1.00) = 0.30Aii)选择导线按允许电压降：S = Kx×(PL)/CU = 1.0×6.00/(77.00×5.00) = 0.02mm2选择BX-3×1+1×6+1×1，空气明敷时其安全载流量为21A。iii)选择电气设备选择开关箱内开关为DZ5-20/3 ，其脱扣器整定电流值为Ir = 16A。漏电保护器为ZBM1-63/10 。(7)强制式混凝土搅拌机开关箱至强制式混凝土搅拌机导线截面及开关箱内电气设备选择i)计算电流Kx 取 1.0，Cos = 0.68Ijs = Kx×Pe/(1.732×Ue×Cos) = 1.0×11.00/(1.732×0.38×0.68) = 24.58Aii)选择导线按允许电压降：S = Kx×(PL)/CU = 1.0×165.00/(77.00×5.00) = 0.43mm2选择BX-3×1.5+2×6，空气明敷时其安全载流量为27A。iii)选择电气设备选择开关箱内开关为DZ15-40/3 ，其脱扣器整定电流值为Ir = 32A。漏电保护器为ZBM1-100/25 。(8)混凝土搅拌站照明开关箱至混凝土搅拌站照明导线截面及开关箱内电气设备选择i)计算电流Kx 取 1.0，Cos = 1.00Ijs = Kx×Pe/(1.732×Ue×Cos) = 1.0×1.00/(1.732×0.38×1.00) = 1.52Aii)选择导线按允许电压降：S = Kx×(PL)/CU = 1.0×15.00/(77.00×5.00) = 0.04mm2选择BX-3×1+1×6+1×1，空气明敷时其安全载流量为21A。iii)选择电气设备选择开关箱内开关为DZ5-20/3 ，其脱扣器整定电流值为Ir = 16A。漏电保护器为ZBM1-63/10 。(9)钢筋切断机开关箱至钢筋切断机导线截面及开关箱内电气设备选择i)计算电流Kx 取 1.0，Cos = 0.40Ijs = Kx×Pe/(1.732×Ue×Cos) = 1.0×5.50/(1.732×0.38×0.40) = 20.89Aii)选择导线按允许电压降：S = Kx×(PL)/CU = 1.0×82.50/(77.00×5.00) = 0.21mm2选择BX-3×1+2×6，空气明敷时其安全载流量为21A。iii)选择电气设备选择开关箱内开关为DZ15-40/3 ，其脱扣器整定电流值为Ir = 32A。漏电保护器为ZBM1-100/25 。(10)钢筋弯曲机开关箱至钢筋弯曲机导线截面及开关箱内电气设备选择i)计算电流Kx 取 1.0，Cos = 0.40Ijs = Kx×Pe/(1.732×Ue×Cos) = 1.0×1.00/(1.732×0.38×0.40) = 3.