湖南某住宅项目临水临电施工方案-secret.doc

目录
一、工程概况·····················································1
1、工程简介················································1
2、主要机械设备投入情况····································1
3、主要机械设备布置情况····································1
二、编制依据······················································1
三、现场施工负荷计算············································1
四、变压器容量选择················································1
五、设计配电系统··················································3
1、施工用电材料·············································3
2、施工用电线路布设及实施方法·······························3
3、照明线路·················································6
4、重复接地系统·············································6
5、现场施工总控制箱、分配电箱及及开关箱分布图··············6
六、避雷系统····················································6
七、确定防护措施················································6
八、制定安全用电措施和电气防火措施·······························6
九、临时用电安全管理制度········································15
十、现场施工用电及有关图表······································15
十一、临时用水················································18

一、工程概况
1、工程简介：湖南＊＊**体育新城住宅小区一期工程由长沙**＊*置业有限公司开发。工程位于长沙市雨花区＊***村，＊＊＊＊路交*＊*＊路东南侧.其中2#标段由六栋高层建筑群，一栋商铺和地下车库组成.其中B1、B2、B5、B6、栋为11层住宅,A1、A2栋为18层住宅,商铺A为2层，由中建*＊局＊*公司承建施工.具有工程量大，工期紧迫等特点.
2、主要设备投入：由于该工程所具有的特点，投入的设备多，用电总功率比较大.因此，对整个工程现场用电应该实行统一管理,统一布设的用电控制措施。根据本工程具体情况及施工组织设计,拟将投入使用的设备主要有塔式起重机3台、输送泵2台、电焊机8台、对焊机1台以及其它施工用的小型设备若干。如：切断机、弯曲机、水泵、振动泵、木工机械等。设备的选择以及功率的大小详见后表第七章（总功率857KW）。为安全顺利地施工，对上述这些用电较大的设备采取分线路供电方法进行用电控制。
3、主要设备布置：根据现场施工要求，于拟建建筑物B-1＃楼、B-5#楼之间设TC5013B塔式起重机一台；B—2#楼、B—6＃楼之间设TC5610B塔式起重机一台；A-1#楼、A—2#楼之间设TC5013B塔式起重机一台；B—5#楼拟建一钢筋加工车间；一台砼输送泵分置于B—5＃楼北面处;一台砼输送泵分置于A-2＃楼北面处;用电平面布置图附后。
二、编制依据
依据中华人民共和国行业标准JGJ46—2005《施工现场临时用电安全技术规范》，公司的工程技术手册及有关的质量、环境、安全程序文件.

三、现场施工负荷计算
∑P1为用电高峰期塔吊、搅拌机、砼输送泵、物料提升机、插入式振捣器、平板振动器、钢筋切断机、钢筋弯曲机、钢筋调直机、木工机械、高压泵功率之和；∑P2为用电高峰期电焊机，电渣压力焊、对焊机功率之和。
∑P1=431.8KW∑P2=344KW∑P3=60KW∑P4=50KW
P总=1。05×（K1∑P1/cosØ+K2∑P2+K3∑P3+K4∑P4)
=1.05×[0.6×431.8/0。75+0.6×344+0。8×60+1.0×50］
=682。332KVA
式中：P总—工地总用电量（KVA）；
P1—电动机额定功率（kW）；
P2—电焊机额定容量（kV