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热水器的太阳能防雷接地怎么设置？

热水器的太阳能防雷接地怎么设置？

浏览：92次 | 提问时间： 08-03 08:15

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十六年清茶始终不凉 08-03 08:15

1、家用室外太阳能热水器通常安装在室外屋顶，超过了建筑物上原有防雷针或避雷网的高度，使其*露在雷电直击的范围内。当遭受雷击时电流会通过水管、电辅助热线等进入室内，危及人身安全。为保证人身安全，应注意以下几点 2、尽量将太阳能热水器安装在防雷装置的保护范围之内。通常太阳能至少低于避雷针或避雷带60CM，并保持1米左右的间距以保安全。 3、如果后安装的太阳能处于防雷装置的保护范围内，就不宜将太阳能的金属外壳与屋顶上其他金属体再相连接。 4、如果不在避雷针保护范围内请参考92DQ13防雷接地装置图集电气外漏可导电部分接地做法希望我的回答能帮到您

Neuropathy^ 08-03 08:24

你好，（１）原建筑物无防雷设施　　如果原建筑物无防雷设施，首先应完善建筑物防直击雷措施，具体做法是：沿女儿墙、顶层楼梯间以及水箱等顶部，敷设一圈避雷蛋拐角处安装避雷短针，按照《建筑物防雷设计规范》的要求均匀布置引下线，上与避雷带、针做良好连接，下与接地装置（自然接地装置或人工接地装置）焊通。为太阳能热水器安装单支或多支避雷针保护，将太阳能热水器顶部置于避雷针的保护范围之内，太阳能热水器顶部置于避雷针的保护范围之内，太阳能热水器顶部至少应低于防雷装置避雷针或避雷带６０厘米，并与其保持１米左右的安全距离。若是因安装空间的限制无法满足安全距离要求，至少应对屋顶太阳能热水器的金属高位水箱外壳、支架等进行连接，并与防雷引下线焊通。据了解，不少太阳能热水器水箱的不锈钢板仅为０．３毫米，不可直接作为接闪器，可考虑在支架边上安装高于水箱一定长度的避雷针作为接闪器，并与屋面避雷网可靠连接。　　（２）原建筑物已有防雷设施　　如果建筑上已有防雷设施并经检测符合防雷规范要求，但太阳能热水器未进行防雷处理，则应在离热水器３米远处为太阳能热水器安装单支或多支避雷针保护，将太阳能热水器顶部置于避雷针的保护范围之内，不宜将其金属外壳与屋顶与其他金属体连接；反之，则要与屋顶防雷装置相连，以此分流走部分雷电流。　　（３）做足防感应雷措施　　安装在楼顶的太阳能水热器的电源线、信号线均应采用金属屏蔽保护，才能全面、有效地阻断进入室内的雷电通道。室内则应在漏电开关后端增设电源ＳＰＤ，一方面防止从导体传导下来的雷电流，损坏太阳能热水器电加热和水位、温度监测显示系统，另一方面可防止雷电流通过该电源线路反馈到电源系统，损坏其他家用电器。希望对你有帮助

手指冰凉 08-03 08:32

防雷接地用角钢，圆钢和接地模块等做个地网，用引下线和地网连接好就行，接地阻值4欧姆左右就行。太阳能热水器不需要安装静电接地装置的

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