呼市二中实验楼图书馆临电方案.docVIP

目 录 1. 工程概况····························································································1 2. 编制依据····························································································1 3. 主要内容····························································································1 4. 现场施工机械设备和照明用电参数表············································2 5. 现场用电容量计算及电器线缆截面选择·········································3 6. 现场临时用电设备选择···································································5 7. 防雷接地···························································································6 8. 临时用电措施和管理规则·······························································7 9. 安全用电措施···················································································8 10.宿舍安全用电管理··········································································10 11.电气防火措施···················································································11 12.人员准备···························································································12 13.对现场临电工作人员的要求···························································12 呼市二中实验楼、图书馆 施工现场临时用电方案 1. 工程概况： 呼市二中重建实验楼、图书馆工程位于呼和浩特市呼伦贝尔南路1号，二中西校区校园内。总建筑面积10685m2，地上五层，局部四层。±0.000相当于绝对高程1057.005m。设计室外地坪为 -0.3m~-0.9 m，自然地坪为-0.5m。 建筑结构形式为框架—剪力墙结构，基础为独立基础、条形基础及板式筏形基础。设计抗震设防裂度为8度，电梯1部，楼梯间3处。 工程建设单位：呼和浩特市第二中学 工程施工单位：内蒙古巨华集团大华建筑安装有限公司 工程设计单位：中国建筑标准设计研究院 工程地质勘察单位：内蒙古工大岩土工程有限责任公司 工程监理单位：内蒙古万和工程项目管理有限公司 2．编制依据 2.1 本工程临时用电施工方案依据《施工现场临时用电安全技术规范》（JGJ46-2005）。 2.2《建筑工程施工现场用电安全规范》（GB50194-93） 2.3《建筑施工安全检查标准》（JGJ59-2011） 2.4内蒙古巨华集团大华建筑安装有限公司相关规定和企业管理手册。 2.5施工现场总平面图及相关手册、图集。 3．主要内容 3.1 通过现场实际勘测，分别设置确定总配电箱，分配电箱，设备使用的开关箱和照明箱的位置，以及线路走向。 3.2 负荷计算采用需要系数法，设备分组归类计算，根据实际施工用的各种机械设备和照明等容量选择电力变压器、配电装置、电器开关、导线、电力电缆等。 3.3 根据现场实际情况，配电线路敷设方法采用电缆直埋方式，并符合规范要求，穿过道路时穿钢管敷设；地面有功能建筑设施电缆不能直埋敷设时应沿电杆、支架架空敷设，采用绝缘子固定，绝缘线绑扎，也可沿其它设施、墙架空敷设，但弧垂距地不得小于2.0m；如明敷设于地面的电缆必须做好免挤、扎、碾、压的扣盖式保护，以保证电缆的安全使用和正常供电。 3.4 现场每一路电源的重复接地装置不少于3处，阻值不得大于10Ω ，接地体采用L50×50×5热镀锌角钢，接地线