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role="draggable" data-type="app" data-appid="datumInfo" data-config="" data-state="true"> <div id="wyu6cme" class="appMask"></div> <div id="wyu6cme" class="appContent"> <div id="wyu6cme" class="datum_info"> <h1 class="title">大型地网接地电阻表接线图</h1> <div id="wyu6cme" class="bgcolor_01"> <div id="wyu6cme" class="bgcolor_sum"> <div id="wyu6cme" class="left">日期：2026-03-04 12:54</div> <div id="wyu6cme" class="right">浏览次数：438</div> </div> <div id="wyu6cme" class="bgcolor_sum01"> 摘要：上?？档堑缙萍加邢薰? 电力技术 </div> </div> <div id="wyu6cme" class="content"> <p style="margin-top:0px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"><span style="color:#ff3333;font-family:inherit;"><span style="border-style:initial;border-color:initial;border-image:initial;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;line-height:inherit;box-sizing:border-box;">大型地网接地电阻表接线图</span></span><br> </span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 1、地网测试方法</span><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:inherit;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> </span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:center;background-color:#FFFFFF;"> <img alt="" src="/ueditor/php/upload/image/20210514/1620963800847068.jpg" width="500" height="167" _src="/ueditor/php/upload/image/20210514/1620963800847068.jpg" style="margin:0px;padding:0px;font:inherit;vertical-align:baseline;box-sizing:border-box;"> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:23px;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <br> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:center;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;">图三极法测量接线图</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 测量电流线D：线径≥1.5mm2 ,长度为地网对角线长度的3 ～ 5倍;</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 测量电压线1：线径≥1.0 mm2 ,长度为0.618D;</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 测量电压线2：接被测地网;</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 测量接地线：接被测地网。</span><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:inherit;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> </span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:center;background-color:#FFFFFF;"> <img alt="" src="/ueditor/php/upload/image/20210514/1620963800847068.jpg" width="500" height="167" _src="/ueditor/php/upload/image/20210514/1620963800847068.jpg" style="margin:0px;padding:0px;font:inherit;vertical-align:baseline;box-sizing:border-box;"> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:23px;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <br> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:center;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;">图四极法测量接线图</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 四极法测量时，从地网的地桩上引出二根连接线分别接到仪器的电压极P2、接地网C2两接线柱，然后按测量操作步骤进行测试。四极法测量时仪器会自动消除接线误差。</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 注意：测量线根据地网的大小由使用者自配。如需本公司配线需另收费。.</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 1、测量范围：0～999Ω(含电流桩阻抗)</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 2、分辨率：0.001Ω</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 3、测量误差：±(读数×1%+0.005Ω)</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 4、输出电压：AC 400V (45Hz、55Hz，双频，正弦波)</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 5、输出电流：AC 3A (45Hz、55Hz，双频，正弦波)</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 6、电流输出档位：3/2.5/2/1.5/1A，每0.5A一档，共5档。</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 7、抗干扰能力：抗工频50Hz</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 2、接触电压、接触电位差测试方法</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 接触电压的测量接线图如下图所示?？砂聪率霾街杞胁馐?。</span><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:inherit;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> </span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:center;background-color:#FFFFFF;"> <img alt="" src="/ueditor/php/upload/image/20210514/1620963800208032.jpg" width="500" height="222" _src="/ueditor/php/upload/image/20210514/1620963800208032.jpg" style="margin:0px;padding:0px;font:inherit;vertical-align:baseline;box-sizing:border-box;"> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:23px;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <br> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:center;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;">图接触电压测量接线图</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 在离接地装置较远处打一个地桩作为电流极，该电流极离接地装置边缘的距离仍取为接地装置*大对角线长度D的4倍以上。</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 用导线将仪器面板的C 端子与电流极可靠连接。再用导线将仪器的E 端子接至被试设备的架构。</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 仪器的P1 端子接至设备架构上的Pa 点，Pa 距地面高度为1.8 米。仪器的P2 端子接至模拟脚的电极Pb,该电极可采用包裹湿布的直径为500px 的金属圆盘，并压上重物。电极中心距设备边缘距离为1 米。</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 仪器P1 与P2 端子间并联等效人体电阻Rm，一般取Rm=1.5KΩ.检测接线无误后，接通仪器电源，选择执行“接地阻抗测量”，再设置好测试电流，仪器开始测量，测量完毕，可从液晶屏上读取到阻抗值Z。</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> *后根据下式计算出接触电压Uj</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> Uj=Z * Is</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 式中Is 为被测接地装置内系统单相接地故障电流。</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 上述测量中，若仪器电压输入端不并联等效人体电阻Rm，则所得结果为接触电位差。</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 3、跨步电压、跨步电位差测试方法</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 跨步电压的测量接线图如图所示?？砂聪率霾街杞胁馐浴?/span><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:inherit;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> </span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:center;background-color:#FFFFFF;"> <img alt="" src="/ueditor/php/upload/image/20210514/1620963800886750.jpg" width="484" height="213" _src="/ueditor/php/upload/image/20210514/1620963800886750.jpg" style="margin:0px;padding:0px;font:inherit;vertical-align:baseline;box-sizing:border-box;"> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:23px;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <br> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:center;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;">图跨步电压测量接线图</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 在离接地装置较远处打一个地桩作为电流极，该电流极离接地装置边缘的距离仍取为接地装置*大对角线长度D的4倍以上。</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 用导线将仪器面板的C 端子与电流极可靠连接。再用导线将仪器的E 端子接至设备的接地引下线。</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 仪器的P1、P2端子分别接至模拟人脚的电极Pc、Pd,该电极可采用包裹湿布的直径为500px 的金属圆盘，并压上重物。两电极中心距离为1 米。</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 仪器P1与P2端子间并联等效人体电阻Rm，一般取Rm=1.5KΩ.检测接线无误后，接通仪器电源，选择执行“接地阻抗测量”，设置好测试电流，仪器开始测量，测量完毕，可从液晶屏上读取到阻抗值Z。</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> *后根据下式计算出跨步电压Uk</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> Uk=Z* Is</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 式中Is 为被测接地装置内系统单相接地故障电流。上述测量中，若仪器电压输入端不并联等效人体电阻Rm，则所得结果为跨步电位差。</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 4、土壤电阻率测试</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 使用本仪器，可以采用单极法或者四极法来测量土壤电阻率。下面以四极法为例来说明。测量土壤电阻率的接线如图所示。</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:center;background-color:#FFFFFF;"> <img alt="" src="/ueditor/php/upload/image/20210514/1620963800159079.jpg" width="257" height="185" _src="/ueditor/php/upload/image/20210514/1620963800159079.jpg" style="margin:0px;padding:0px;font:inherit;vertical-align:baseline;box-sizing:border-box;"> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:23px;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <br> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:center;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;">图四极法测量土壤电阻率接线图</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 图中，a 为电流极与电位极的间距，b 为两电位极的间距，h 为电极埋设深度。当a=b 时即为温纳法。为了计算方便，请让电极间距a、b 远大于埋设深度h,一般应满足a、b>10h。</span> </p> <p style="margin-top:18px;margin-bottom:0px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:2em;font-family:Arial, "Microsoft YaHei", 黑体, sans-serif, Tahoma;vertical-align:baseline;box-sizing:border-box;color:#333333;text-align:justify;background-color:#FFFFFF;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:16px;line-height:inherit;font-family:微软雅黑, "Microsoft YaHei";vertical-align:baseline;box-sizing:border-box;"> 测试电极宜采用直径不小于37.5px 的圆钢或25mm×25mm×4mm 的角钢，</span> </p> </div> <div id="wyu6cme" class="datumrelate"> <span>下一篇：</span> <a href="/kangdengdq_Article_11624067.html" title="直流高压发生器工作原理图">直流高压发生器工作原理图</a> <br> <span>上一篇：</span> <a href="/kangdengdq_Article_11624070.html" title="钳形接地电阻表的使用方法">钳形接地电阻表的使用方法</a> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> <footer id="footer" class="footer" data-appid="layout"> <div class="wyu6cme" id="footerWrapper" class="footerWrapper" data-appid="wrapper"> <div class="wyu6cme" id="footerContainer" 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