光明小区临电方案新.doc

目次
1工程概况··················································2
2临时用电计算与配线········································2
3三级配电二级保护··········································30
4重复接地与接地装置········································31
5防雷措施··················································32
6安全用电措施··············································33
7电器防火措施··············································35
8急救措施··················································36
9雨季施工安全措施··········································36
10编制依据·················································37
1工程概况
工程名称:瑞辰。天悦城11#15#住宅楼工程
结构类型: CL复合剪力墙
总建筑面积: 35146m2
开竣工日期: 年月日—年月日
建设单位:河南:瑞辰房地产开发有限公司
施工单位:鑫河建工有限公司
该场区为非自重湿陷场地,地基湿陷等级为一级,采用3:7灰土挤密桩处理,每边超出基础垫层2000mm。
本工程为筏板基础,,,地下1层,地上11层,基底标高为-,一二层为商业房(、),三至十一为住宅房()。CL复合墙剪力墙结构,总建筑面积19146m2。
本工程抗震设防类别为丙类,抗震设防烈度为7度,基础持力层为第二层黄土状粉土层,计划使用年限为50年。
2临时用电计算与配线
施工现场用电量统计表
序号
设备名称
安装功率(kW)
数量
合计功率(kW)
1
塔式起重机
22
2
44
2
镝灯

3

3
钢筋弯曲机

2

4
钢筋对焊机
50
1
50
5
钢筋调直机

1

6
移动箱
20
3
60
7
钢筋切断机

2

8
圆盘锯

1

9
压刨
6
1
6
10
塔吊起重机
22
1
22
11
潜水泵

1

(二)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,总线采用电缆线埋地敷设,干1采用电缆线埋地敷设,干2采用电缆线埋地敷设,干3采用电缆线埋地敷设,干4采用电缆线埋地敷设,分1采用电缆线埋地敷设,,分2采用电缆线埋地敷设,,分3采用电缆线埋地敷设,,分4采用电缆线埋地敷设,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R≤4Ω。
2、确定用电负荷
(1)塔式起重机组
Kx = ,Cosφ= ,tgφ=
Pjs = Kx×Pe = × =
(2)镝灯组
Kx = ,Cosφ= ,tgφ= 0
Pjs = Kx×Pe = × =
(3)钢筋弯曲机组
Kx = ,Cosφ= ,tgφ= .88
Pjs = Kx×Pe = × =
(4)钢筋对焊机组
Kx = ,Cosφ= ,tgφ=
Pjs = Kx×Pe = × =
(5)钢筋调直机组
Kx = ,Cosφ= ,tgφ=
Pjs = Kx×Pe = × =
(6)塔式起重机组
Kx = ,Cosφ= ,tgφ=
Pjs = Kx×Pe = × =
(7)镝灯组
Kx = ,Cosφ= 1.