【OBO V25-B/3+NPE，郑州防雷产品，OBO电源防雷模块OBO V25-B/3+NPE】价格_参数_OBO V25-B/3+NPE，郑州防雷产品，OBO电源防雷模块厂家_品牌_介绍

安防商城首页 > 防雷电设备 > 防雷器 > 电源防雷器 > OBO V25-B/3+NPE，郑州防雷产品，OBO电源防雷模块

OBO V25-B/3+NPE，郑州防雷产品，OBO电源防雷模块

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产品型号：OBO V25-B/3+NPE

所在地：河南郑州

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OBO V25-B/3+NPE，郑州防雷产品，OBO电源防雷模块

　　 <div style="text-indent: 7.05pt">主要参数</div> <div style="text-indent: 7.05pt">残压(V ):<span style="font-size: 11.5pt"> <1500</span></div> <div style="text-indent: 7.05pt">基本参数</div> <div style="text-indent: 7.05pt">防雷产品类型：<span style="font-size: 11.5pt">电源防雷器</span></div> <div style="text-indent: 7.05pt">连接方式：<span style="font-size: 11.5pt">根据</span><span style="font-size: 11.5pt">EN50052, </span><span style="font-size: 11.5pt">固定于</span><span style="font-size: 11.5pt">35MM</span><span style="font-size: 11.5pt">宽的导轨上</span></div> <div style="text-indent: 7.05pt">保护线数：<span style="font-size: 11.5pt">2</span><span style="font-size: 11.5pt">线</span></div> <div style="text-indent: 7.05pt">响应时间：<span style="font-size: 11.5pt"><25ns</span></div> <div style="text-indent: 7.05pt">其他功能：<span style="font-size: 11.5pt">单相二线</span><span style="font-size: 11.5pt">B</span><span style="font-size: 11.5pt">级保护防雷器</span></div> <div style="text-indent: 7.05pt">电流：<span style="font-size: 11.5pt">最大放电电流</span><span style="font-size: 11.5pt">: 100kA</span></div> <div style="text-indent: 7.05pt">电压：<span style="font-size: 11.5pt">最大工作电压</span><span style="font-size: 11.5pt">: 385V</span></div> <div style="text-indent: 7.05pt">工作环境：<span style="font-size: 11.5pt">-40 - +80</span><span style="font-size: 11.5pt">℃</span></div> <div align="center"> <table border="0" cellspacing="1" cellpadding="0" width="97%" style="width: 97%"> <tbody> <tr style="height: 225pt"> <td valign="top" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 6.7pt; padding-left: 6.7pt; padding-right: 6.7pt; background: white; height: 225pt; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 6.7pt"> <div style="margin: 13pt 0cm"><b><font size="4"><span style="line-height: 173%; font-size: 12pt">V25-B</span><span style="line-height: 173%; font-size: 12pt">防雷器功能介绍和详细参数</span></font></b></div> <div style="margin: 13pt 0cm"><b><font size="4"><span style="line-height: 173%; font-size: 12pt">V25-B</span><span style="line-height: 173%; font-size: 12pt">防雷器功能</span></font></b></div> <div>    OBO V25-B高能量防雷器内含一个特别的压敏电阻电路，该电路由具备性能良好的非线性特性（?>30）的氧化锌压敏电阻组成。这使得该防雷器即使在高能量的过电压冲击下，也能够最大限度地实现保护。其保护水平为在100KA/10As冲击下，残压不超过2kV。因此，该防雷器能够承受来自于直接雷击下的部分雷电流。当线路过载情况发生时，防雷器内部的断路器，会自动将失效的防雷器模块从主电路分断开来，同时模块上用于监视工作状态的显示窗口的颜色会由绿色转变为红色。</div> <div style="margin: 13pt 0cm"><b><font size="4"><font size="5">V25-B防雷器应用</font></font></b></div> <div>    当建筑物本身设有外部避雷系统（如安装有避雷针、引下线、地网、外部屏蔽时），根据IEC、VDE相关理论，在其建筑物内部的380V/230V低压配电电路上，采用OBO V25-B/3+NPE/FS来建立电源线上的雷电保护等电位连接，可以避免雷电发生时引起的失火、爆炸、人身伤亡的危害。</div> <div style="margin: 13pt 0cm"><b><font size="4"><font size="5">V25-B防雷器特殊配置</font></font></b></div> <div>    　<strong>AS </strong><strong>声光报警模块 </strong>附带声音与灯光报警的功能底座，给该底座供一220V单相市电，在正常的情况下灯光显示为绿等，当有模块损坏时，报警灯由绿色变成闪烁的红灯，并伴有“嘀嘀”报警声，提醒维护人员更换。</div> <div> </div> <div>    <strong><span>FS</span><strong>遥信触点模块</strong>附带遥信触点功能底座,可根据实际需要选用端子1-2（常开触点）或1-3（常闭触点）连接。而端子接线可使用0.14-2.5mm2多股线或单芯线。</strong></div> <div> </div> <div>    <strong><span>AS </span><strong>声光报警模块、<span>FS遥信触点模块 </span></strong>可使维护人员实时对防雷器工作状态进行监视。当发现防雷器不能正常工作时，维护人员只需对已失效的防雷器模块进行更换，这样可降低维护费用，更换时并不需停电。</strong></div> <div style="margin: 13pt 0cm"><b><font size="4"><font size="5">V25-B防雷器的技术</font></font></b></div> <table border="1" cellspacing="0" cellpadding="0"> <tbody> <tr> <td valign="top" width="407" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 305.25pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>型号</div> </td> <td valign="top" width="188" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 141pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div align="center">V25-B</div> </td> </tr> <tr> <td valign="top" width="407" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 305.25pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>正常工作电压 UN</div> </td> <td valign="top" width="188" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 141pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div align="center">230V~</div> </td> </tr> <tr> <td valign="top" width="407" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 305.25pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>最大持续工作电压 UcAC<br /> UcDC</div> </td> <td valign="top" width="188" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 141pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div align="center">385<br /> 505</div> </td> </tr> <tr> <td valign="top" width="407" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 305.25pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>根据VDE 0675，Part 6标准下的分类级别</div> </td> <td valign="top" width="188" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 141pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div align="center">B</div> </td> </tr> <tr> <td valign="top" width="407" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 305.25pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>在5KA（8/20）冲击电流下的电压保护水平 Up</div> </td> <td valign="top" width="188" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 141pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div align="center"><1.0KV</div> </td> </tr> <tr> <td valign="top" width="407" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 305.25pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>单模块最大通流量 Imax (8/20us)</div> </td> <td valign="top" width="188" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 141pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div align="center">60KA</div> </td> </tr> <tr> <td valign="top" width="407" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 305.25pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>根据IEC1312-1、ENV61024-1标准，采用（10/350）直击雷脉冲电流波形测试下的量值 <br /> 峰值电流 ismax<br /> 电量 Q<br /> 特定能量 W/R</div> </td> <td valign="top" width="188" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 141pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div align="center"> </div> <div align="center">25KA<br /> 12.5AS<br /> 160 KJ/W</div> </td> </tr> <tr> <td valign="top" width="407" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 305.25pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>承受25Karpm短路电流的最大保险丝规格</div> </td> <td valign="top" width="188" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 141pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div align="center">160A gl</div> </td> </tr> <tr> <td valign="top" width="407" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 305.25pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>连接导线选择范围</div> </td> <td valign="top" width="188" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 141pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div align="center">2.5-35mm2</div> </td> </tr> <tr> <td valign="top" width="407" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 305.25pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>安装</div> </td> <td valign="top" width="188" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 141pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>按DIN EN50052标准要求，固定于35mm宽之金属导轨上</div> </td> </tr> <tr> <td valign="top" width="407" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 305.25pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>颜色模块 <br /> 底座</div> </td> <td valign="top" width="188" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 141pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div align="center">橙色 <br /> 灰色</div> </td> </tr> <tr> <td valign="top" width="407" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 305.25pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div> </div> </td> <td valign="top" width="188" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 141pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div align="center">700g</div> </td> </tr> <tr> <td valign="top" width="407" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 305.25pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>材料</div> </td> <td valign="top" width="188" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 141pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div align="center">聚酰亚胺</div> </td> </tr> <tr> <td valign="top" width="407" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 305.25pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>体积(长*宽*高)</div> </td> <td valign="top" width="188" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 141pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div align="center">90mm*89mm*62mm</div> </td> </tr> </tbody> </table> <div> </div> <div style="margin: 13pt 0cm"><b><font size="4"><font size="5">NPE 模块技术参数</font></font></b></div> <table border="1" cellspacing="0" cellpadding="0"> <tbody> <tr> <td valign="top" width="313" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 234.75pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>额定反应直流电压 UagN</div> </td> <td valign="top" width="284" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 213pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>500V±20%</div> </td> </tr> <tr> <td valign="top" width="313" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 234.75pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>额定工作电压 Ur</div> </td> <td valign="top" width="284" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 213pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>250V~ 50/60HZ</div> </td> </tr> <tr> <td valign="top" width="313" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 234.75pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>在100V下的绝缘电阻 Riso</div> </td> <td valign="top" width="284" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 213pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>>10 Gohm</div> </td> </tr> <tr> <td valign="top" width="313" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 234.75pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>依据IEC 529的雷电流测试（10/350） <br /> 最大通流量 is max<br /> 电量 Q<br /> 比能 W/R</div> </td> <td valign="top" width="284" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 213pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div> </div> <div>25KA<br /> 12.5As<br /> 160 KJ/Ω</div> </td> </tr> <tr> <td valign="top" width="313" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 234.75pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>最大通流量（8/20us） Is max</div> </td> <td valign="top" width="284" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 213pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>50KA</div> </td> </tr> <tr> <td valign="top" width="313" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 234.75pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>100%雷击浪涌反应电压（1.2/50）UAS 100</div> </td> <td valign="top" width="284" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 213pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>≤1KV</div> </td> </tr> <tr> <td valign="top" width="313" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 234.75pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>保护水平</div> </td> <td valign="top" width="284" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 213pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>≤1KV</div> </td> </tr> <tr> <td valign="top" width="313" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 234.75pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>反应时间 tA</div> </td> <td valign="top" width="284" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 213pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>≤100 ns</div> </td> </tr> <tr> <td valign="top" width="313" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 234.75pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>使用温度范围</div> </td> <td valign="top" width="284" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 213pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>-40℃-----+80℃</div> </td> </tr> </tbody> </table> <div> </div> <div style="margin: 13pt 0cm"><b><font size="4"><font size="5">V25-B/3+NPE电源防雷器技术介绍</font></font></b></div> <div style="margin: 14pt 0cm 14.5pt"><b><font size="3"><font size="5">V25-B/3+NPE电源防雷器应用</font></font></b></div> <div>    <strong><span>V25-B/3+NPE</span>防雷器为根据IEC61312、IEC61643、VDE0675标准设计，用于B类防雷保护的场合，该过电压保护器尤其适用于TT和IT电网场合。<strong>V25-B/3+NPE</strong>防雷器采用新型的设计，既做到符合DIN VDE0100 Part534/A1的标准要求，又使得该型号在TT和IT电网上的安装变得简单易行。<strong>V25-B/3+NPE</strong>防雷器保护用户设备免遭由于雷电和开关操作所引起的瞬态浪涌的危害。</strong></div> <div style="margin: 14pt 0cm 14.5pt"><b><font size="3"><font size="5">V25-B/3+NPE电源防雷器功能</font></font></b></div> <div>         <strong><span>V25-B/3+NPE</span>防雷器的相线与零线之间的限压采用三组氧化锌压敏电阻模块（德国<strong>OBO BETTERMANN</strong>公司原厂提供，型号为<strong>V25-B/0</strong>），使过电压箝位至非常低的幅值，与此同时，压敏电阻在极短的响应时间内释放出较大的放电电流。在零线和地线的保护上，该型号采用一个高能量的石墨电极间隙放电模块（德国<strong>OBO BETTERMANN</strong>公司原厂提供，型号为<strong>NPE</strong>）用来限制零线与地线之间的过电压，当由于电网发生故障电压导致内部防雷器模块迅速老化情况发生时，<strong>V25-B/3+NPE</strong>防雷器内部的防雷模块内置的动态及热感断路器会随即发生动作，使防雷模块安全地从主电路脱离开来，与此同时，显示视窗适时地从绿色转变为红色和同时提供多种方式的告警。值得自豪的是，由于<strong>V25-B/3+NPE</strong>防雷器采取了新型结构，使得防雷模块在由于市电或负载原因引起防雷器过载时，其前端保险丝（或空开）能够及时而安全动作，避免了其它类型之防雷箱因内部结构不合理而引发防雷器内部压敏电阻持续短路造成的严重后果</strong></div> <div>    由于V25-B/3+NPE防雷器采取了新型结构，使得内部防雷模块在由于市电波动过大或市电故障原因引起防雷模块过载时，其前端保险丝（或空开）能够及时而安全动作.从而使防雷模块能够安全地从主电路上脱离开来，避免防雷器因持续开通而引起短路损坏。具体保护原理图示如下：</div> <div>    敏电阻模块，从而使防雷器能够适应波动范围较大的用电环境。又由于零线与地线之间采用了一个高能石墨电极（NPE），因而在正常非雷电状态下，即使电网出现故障，相线与零线的工作电压超过385V以上，由于相线与中线之间的阻抗较小，故障电流足以使前级32A空开跳开，从而使防雷器安全运行。</div> <div>    新结构的防雷器对地电位引起的反击同样起到作用，当电位因雷电入地后引起PE与N之间反击时，反击电流经过高能石墨电极（NPE）后，在PE与N之间导通，并经过远端中性点后形成回路，从而使反击电流不经相线，造电设备损坏。</div> <div> </div> <div style="margin: 13pt 0cm"><b><font size="4"><font size="5">安装规范</font></font></b></div> <div style="margin: 13pt 0cm"><b><font size="4"><font size="5">基本要求</font></font></b></div> <div><br /> 1、安装位置：V25-B应安装于机房的低压主配电柜内，它并联于主断路器的出线侧。 <br /> 2、防雷器与供电系统的连接线长度应小于50cm.防雷器与地线长度也小于50cm.<br />  3、导线截面的选择（依据VDE0100标准）单位：mm2</div> <div align="center"> <table border="1" cellspacing="0" cellpadding="0"> <tbody> <tr> <td valign="top" width="142" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 106.5pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div><br /> 配电电源线</div> </td> <td valign="top" width="142" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 106.5pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div align="center">≤35</div> </td> <td valign="top" width="142" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 106.5pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div align="center">50</div> </td> <td valign="top" width="142" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 106.5pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div align="center">≥70</div> </td> </tr> <tr> <td valign="top" width="142" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 106.5pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>连接电线</div> </td> <td valign="top" width="142" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 106.5pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div align="center">10</div> </td> <td valign="top" width="142" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 106.5pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div align="center">16</div> </td> <td valign="top" width="142" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 106.5pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div align="center">25</div> </td> </tr> <tr> <td valign="top" width="142" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 106.5pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div>接地线</div> </td> <td valign="top" width="142" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 106.5pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div align="center">≥16</div> </td> <td valign="top" width="142" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 106.5pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div align="center">25</div> </td> <td valign="top" width="142" style="border-bottom: #f0f0f0; border-left: #f0f0f0; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 106.5pt; padding-right: 0cm; border-top: #f0f0f0; border-right: #f0f0f0; padding-top: 0cm"> <div align="center">≥35</div> </td> </tr> </tbody> </table> </div> <div>4、由于V25-B/3+NPE/FS的特点，建议在防雷器前串接一后备空开，建议空开的容量为32A，A类空开（如Siemens 5sx2332-5）.<br /> 5、FS的接线安装共有三个接线端口，其中1-2接线端为常闭触点，1-3为常闭触点，根据用户报警装置的不同，连接不同的接线端。 <br /> 注意：不可将已保护的线路与未保护的线路或地线并行布线。</div> <div>遥信报警连接示意图</div> </td> </tr> </tbody> </table> </div> <br />

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