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12d10防雷与接地工程该如何设计？

12d10防雷与接地工程该如何设计？

浏览：41次 | 提问时间： 07-29 05:49

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如花美眷似水流年 07-29 05:49

你好，防雷及接地装置工程量计算规则一、接地极制作安装以“根”为计量单位，其长度按设计长度计算，设计无规*，每根长度按2.5m计算。若设计有管帽时，管帽另按*件计算。二、接地母线敷设、避雷线敷设，按设计长度以“10m”为计量单位计算工程量。其长度按施工图设计水平和垂直规定长度另加3.9％的附加长度（包括转弯、上下波动、避绕障碍物、搭接头所占长度）计算。计算主材费时应另加增加规定的损耗率。三、接地跨接线以“处”为计量单位，按规范规定凡需作接地跨接线的工程内容，每跨接一次按一处计算，*配电装置构架均需接地，每副构架按“一处”计算。四、避雷针的*制作、安装，以“根”为计量单位，*避雷针安装以“基”为计量单位。长度、高度、数量均按设计规定。*避雷针的*制作应执行“一般铁件”制作定额或按成品计算。五、半导体少长针消雷装置安装以“套”为计量单位，按设计安装高度分别执行相应项目。装置本身由设备*厂成套供货。六、利用建筑物内主筋作接地引下线安装以“10m”为计量单位，每一柱子内按焊接两根主筋考虑，如果焊接主筋数超过两根时，可按比例调整。七、断接卡子制作安装以“套”为计量单位，按设计规定装设的断接卡子数量计算，接地检查井内的断接卡子安装按每井一套计算。八、均压环敷设以“10m”为单位计算，主要按利用圈梁内主筋作均压环接地连线考虑的，其工程量按设计需要作均压接地的圈梁中心线长度，以延长米计算。焊接按两根主筋考虑，超过两根时，可按比例调整。长度按设计需要作均压接地的圈梁中心线长度，以延长米计算。九、钢、铝窗接地以“处”为计量单位（高层建筑六层以上的金属窗设计一般要求接地），按设计规定接地的金属窗数进行计算。十、柱主筋与圈梁筋连接以“10处”为计量单位，每处按两根主筋与两根圈梁钢筋分别焊接连接考虑。如果焊接主筋和圈梁钢筋超过两根时，可按比例调整，需要连接的柱子主筋和圈梁钢筋“处”数按设计规定计算。十一、降阻剂的埋设以“kg”为计量单位。

留不住感动 07-29 05:58

一个综合防雷系统，包含了9部分的措施要进行，而不是我们想象当中，简单安装一个避雷器，或是做一个地网，就可以解决所有的问题的。我们需要根据现场的实际情况，有针对性地进行设计。设计的原则包括如下几方面：1）、人身安全第一，财产第二；2）、针对性，考虑经济性，合理性；3）、符合*相关的标准；4）、考虑实施的可行性；5）、选用防雷产品必须满足被保护设施的参数要求。

不朽希望 07-29 06:06

防雷接地工程的注意方法和步骤由于自然灾害的增多，尤其通信部门，非常有必要安装防雷装置，下面就介绍了防雷工程的方法一、移动通信站的交流供电系统的防雷与接地一般要求1、移动通信站的交流供电系统应采用三相五线制供电方式。2、移动通信站宜设置专用电力变压器，电力线宜采用具有金属护套或绝缘护套电缆穿钢管埋地引入移动通信站，电力电缆金属护套或钢管两端应就近可靠接地。3、当电力变压器设在站外时，对于地处年雷*日大于20天、大地电阻率大于100Ω·m，电力线应在避雷线的25°角保护范围内，避雷线(除终端杆处)应每杆作一次接地，

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