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href="/SonList-536451.html">螺旋拉力機(jī)/合攏器</a></li> </ul> </div> </li> <li> <a href="/ParentList-536955.html" onmouseover="showsubmenu('變壓器短路阻抗測(cè)試儀')">變壓器短路阻抗測(cè)試儀</a> <div class="eqckvv83f" id="submenu_變壓器短路阻抗測(cè)試儀" style="display:none"> <ul class="two_profl"> <li><a href="/SonList-537012.html">全自動(dòng)變比組別測(cè)試儀</a></li> <li><a href="/SonList-536958.html">短路阻抗測(cè)試儀</a></li> </ul> </div> </li> <li> <a href="/ParentList-537016.html" onmouseover="showsubmenu('LCR數(shù)字電橋')">LCR數(shù)字電橋</a> <div class="eqckvv83f" id="submenu_LCR數(shù)字電橋" style="display:none"> <ul class="two_profl"> <li><a href="/SonList-537017.html">數(shù)字電橋</a></li> </ul> </div> </li> <li> <a href="/ParentList-537028.html" onmouseover="showsubmenu('絕緣墊')">絕緣墊</a> <div class="eqckvv83f" id="submenu_絕緣墊" style="display:none"> <ul class="two_profl"> <li><a href="/SonList-537265.html">圍欄、工具柜、放電棒等</a></li> <li><a href="/SonList-537264.html">腳扣</a></li> <li><a href="/SonList-537029.html">絕緣墊</a></li> </ul> </div> </li> <li> <a href="/ParentList-537267.html" onmouseover="showsubmenu('身體防護(hù)服')">身體防護(hù)服</a> <div class="eqckvv83f" id="submenu_身體防護(hù)服" style="display:none"> <ul class="two_profl"> <li><a href="/SonList-537279.html">防電弧服</a></li> <li><a href="/SonList-537268.html">高壓防靜電服</a></li> </ul> </div> </li> <li> <a href="/ParentList-537285.html" onmouseover="showsubmenu('指針磁電系標(biāo)準(zhǔn)電表')">指針磁電系標(biāo)準(zhǔn)電表</a> <div class="eqckvv83f" id="submenu_指針磁電系標(biāo)準(zhǔn)電表" style="display:none"> <ul class="two_profl"> <li><a href="/SonList-537586.html">交直流標(biāo)準(zhǔn)電表</a></li> <li><a href="/SonList-537286.html">直流電表</a></li> </ul> </div> </li> <li> <a href="/ParentList-537605.html" onmouseover="showsubmenu('交直流分壓器')">交直流分壓器</a> <div class="eqckvv83f" id="submenu_交直流分壓器" style="display:none"> <ul class="two_profl"> <li><a href="/SonList-537645.html">分流器</a></li> <li><a href="/SonList-537607.html">交直流分壓器</a></li> </ul> </div> </li> <li> <a href="/ParentList-537651.html" onmouseover="showsubmenu('數(shù)字雙鉗相位伏安表')">數(shù)字雙鉗相位伏安表</a> <div class="eqckvv83f" id="submenu_數(shù)字雙鉗相位伏安表" style="display:none"> <ul class="two_profl"> <li><a href="/SonList-537655.html">數(shù)字雙鉗相位伏安表</a></li> <li><a href="/SonList-537652.html">三相數(shù)字相位伏安表</a></li> </ul> </div> </li> <li> <a href="/ParentList-538066.html" onmouseover="showsubmenu('接地線')">接地線</a> <div class="eqckvv83f" id="submenu_接地線" style="display:none"> <ul class="two_profl"> <li><a href="/SonList-538069.html">三相短路平口接地線</a></li> <li><a href="/SonList-538067.html">平口短路接地線</a></li> </ul> </div> </li> <li> <a href="/ParentList-538070.html" onmouseover="showsubmenu('選頻電平表,電平振蕩器')">選頻電平表,電平振蕩器</a> <div class="eqckvv83f" id="submenu_選頻電平表,電平振蕩器" style="display:none"> <ul class="two_profl"> <li><a href="/SonList-538071.html">手持?jǐn)?shù)字選頻電平表</a></li> </ul> </div> </li> <li> <a href="/ParentList-538074.html" onmouseover="showsubmenu('數(shù)字微安表')">數(shù)字微安表</a> <div class="eqckvv83f" id="submenu_數(shù)字微安表" style="display:none"> <ul class="two_profl"> <li><a href="/SonList-538075.html">直流微安表</a></li> </ul> </div> </li> </ul> </div> </div> <div id="eqckvv83f" class="nymiddlezty"> <div id="eqckvv83f" class="mianbao">您現(xiàn)在的位置：<a href="/">首頁(yè)</a> > <a href="/article.html">技術(shù)文章</a> > PC40B型高絕緣電阻測(cè)量?jī)x結(jié)構(gòu)及工作原理注意事項(xiàng)</div> <div id="eqckvv83f" class="about_con"> <h1 class="newstit">PC40B型高絕緣電阻測(cè)量?jī)x結(jié)構(gòu)及工作原理注意事項(xiàng)</h1> <div id="eqckvv83f" class="newstime"> <span id="eqckvv83f" class="skim"><em>瀏覽次數(shù)：</em>342</span><span id="eqckvv83f" class="skimtim"><em>發(fā)布日期：</em>2024-03-08 </span> </div> <p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><strong><span times="" new="" style="margin: 0px; padding: 0px;">PC40B</span><span style="margin: 0px; padding: 0px; font-family: 宋體;">型高絕緣電阻測(cè)量?jī)x</span></strong><strong><span style="margin: 0px; padding: 0px; font-family: 宋體;">結(jié)構(gòu)及工作原理</span></strong></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><br data-filtered="filtered"/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 16px;">　　由直流高壓測(cè)試電源、放電測(cè)試裝置、高阻抗直流放大器、電源和顯示器組成。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">3.2</span><span style="margin: 0px; padding: 0px; font-family: 宋體;">　工作原理</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><span style="margin: 0px; padding: 0px; font-family: 宋體;">　　儀器作高阻測(cè)試時(shí)其主要原理如圖</span><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">1</span><span style="margin: 0px; padding: 0px; font-family: 宋體;">所示。測(cè)試時(shí)，被測(cè)試樣與高阻抗直流放大器的輸入電阻“</span><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">R</span><sub><span times="" new="" font-size:="" vertical-align:="" style="margin: 0px; padding: 0px;">0</span></sub><span style="margin: 0px; padding: 0px; font-family: 宋體;">"串聯(lián)并跨接于直流高壓測(cè)試電源上。高阻抗直流放大器將其輸入電阻上的分壓訊號(hào)經(jīng)放大后輸出至顯示器，由顯示器直接讀出被測(cè)絕緣電阻值。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 16px;"></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap; text-align: center;"><img src="https://img57.afzhan.com/9/20240308/638454926176976287382.png" title="G@X$40$EA7YFY$$4G$SLZ_I.png" alt="G@X$40$EA7YFY$$4G$SLZ_I.png" style="margin: 0px; padding: 0px; border: none; max-width: 800px; max-height: 300%;"/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><span style="margin: 0px; padding: 0px; font-family: 宋體;"></span><strong><span times="" new="" style="margin: 0px; padding: 0px;">PC40B</span><span style="margin: 0px; padding: 0px; font-family: 宋體;">型高絕緣電阻測(cè)量?jī)x結(jié)構(gòu)</span></strong></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><br data-filtered="filtered"/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap; text-align: center;"><img src="https://img57.afzhan.com/9/20240308/638454926179320042590.png" title="ZTFN`QGYZ2M6$RI0)O(P}IP.png" alt="ZTFN`QGYZ2M6$RI0)O(P}IP.png" style="margin: 0px; padding: 0px; border: none; max-width: 800px; max-height: 300%;"/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><br data-filtered="filtered"/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap; text-indent: 42px;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">1</span><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 14px;">　<span style="margin: 0px; padding: 0px; font-size: 16px;">“測(cè)試電阻"顯示器　　　　　</span></span><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">2</span><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 14px;">　<span style="margin: 0px; padding: 0px; font-size: 16px;">“測(cè)試時(shí)間"顯示器</span></span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 14px;">　　　</span><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">3</span><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 14px;">　<span style="margin: 0px; padding: 0px; font-size: 16px;">“方式選擇"開關(guān)　　　　　　</span></span><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">4</span><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 14px;">　<span style="margin: 0px; padding: 0px; font-size: 16px;">“電壓選擇"開關(guān)</span></span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 14px;">　　　</span><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">5</span><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 14px;">　<span style="margin: 0px; padding: 0px; font-size: 16px;">“電阻量程選擇"開關(guān)　　　　</span></span><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">6</span><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 14px;">　<span style="margin: 0px; padding: 0px; font-size: 16px;">“輸入"端</span></span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 14px;">　　　</span><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">7</span><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 14px;">　<span style="margin: 0px; padding: 0px; font-size: 16px;">“接地"端　　　　　　　　　</span></span><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">8</span><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 14px;">　<span style="margin: 0px; padding: 0px; font-size: 16px;">“高壓輸出"端</span></span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 14px;">　　　</span><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">9</span><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 14px;">　<span style="margin: 0px; padding: 0px; font-size: 16px;">“時(shí)間"設(shè)定撥盤　　　　　</span></span><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;"> 10</span><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 14px;">　<span style="margin: 0px; padding: 0px; font-size: 16px;">“定時(shí)"設(shè)定開關(guān)</span></span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 14px;">　　 </span><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;"> 11</span><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 14px;">　<span style="margin: 0px; padding: 0px; font-size: 16px;">“電源"開關(guān)</span></span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><strong><span style="margin: 0px; padding: 0px; font-family: 宋體;"><strong><span times="" new="" style="margin: 0px; padding: 0px; font-family: 微軟雅黑;">PC40B</span><span style="margin: 0px; padding: 0px;">型高絕緣電阻測(cè)量?jī)x</span></strong>安全注意事項(xiàng)</span></strong><strong><i></i></strong></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">4.1</span><span style="margin: 0px; padding: 0px; font-family: 宋體;">　使用前務(wù)必詳閱此使用說明書，并遵照指示步驟，依次操作。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">4.2</span><span style="margin: 0px; padding: 0px; font-family: 宋體;">　請(qǐng)勿使用非原廠提供之附件，以免發(fā)生危險(xiǎn)。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">4.3</span><span style="margin: 0px; padding: 0px; font-family: 宋體;">　接到儀器輸入端的導(dǎo)線必須用高絕緣屏蔽線（絕緣電阻應(yīng)</span><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">></span><span times="" new="" style="margin: 0px; padding: 0px;">10</span><sup><span times="" new="" style="margin: 0px; padding: 0px; vertical-align: super; font-size: 16px;">1</span></sup><sup><span times="" new="" font-size:="" vertical-align:="" style="margin: 0px; padding: 0px;">7</span></sup><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 14px;"><span style="margin: 0px; padding: 0px; font-size: 16px;">Ω），其長(zhǎng)度不應(yīng)超過</span><span times="" new="" style="margin: 0px; padding: 0px; font-family: 微軟雅黑; font-size: 16px;">1m</span><span style="margin: 0px; padding: 0px; font-size: 16px;">。　　　　　　　　　　　　　　　　　　</span></span></span></p><div id="eqckvv83f" class="tabledivclass" style="margin: 0px; padding: 0px; list-style: none; border: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap; width: 856.344px; float: left;"><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px;"><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 16px;">本儀器一般情況下不能用來測(cè)量一端接地被測(cè)物的絕緣電阻，在測(cè)試時(shí)，被測(cè)物應(yīng)放在高絕緣的墊板上，以防止漏電，影響測(cè)試結(jié)果。</span></p></div><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;"><br data-filtered="filtered"/></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;"><br data-filtered="filtered"/></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><span times="" new="" style="margin: 0px; padding: 0px;">4.5</span><span style="margin: 0px; padding: 0px; font-family: 宋體;">　測(cè)試電工產(chǎn)品時(shí)，應(yīng)盡量將面積較大的或外露的電極部分接至儀器的高壓輸出端，以免外界干擾。</span><br data-filtered="filtered"/></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">4.6</span><span style="margin: 0px; padding: 0px; font-family: 宋體;">　對(duì)電纜產(chǎn)品，如有外金屬護(hù)套可將這部分作為一電極，接至儀器高壓輸出端，而將芯線接至輸入端，對(duì)無外套保護(hù)的電纜，則可任意連接，但被測(cè)物必須放在金屬屏蔽罩內(nèi)，罩殼接地。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">4.7</span><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 14px;"><span style="margin: 0px; padding: 0px; font-size: 16px;">　測(cè)試高值電阻時(shí)，一般額定電壓為</span><span times="" new="" style="margin: 0px; padding: 0px; font-family: 微軟雅黑; font-size: 16px;">100V</span></span><span style="margin: 0px; padding: 0px; font-family: 宋體; letter-spacing: -1px;">（對(duì)能承受高壓的電阻除外）。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">4.8</span><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 14px;"><span style="margin: 0px; padding: 0px; font-size: 16px;">　當(dāng)被測(cè)絕緣電阻高于</span><span times="" new="" style="margin: 0px; padding: 0px; font-family: 微軟雅黑; font-size: 16px;">1</span><span style="margin: 0px; padding: 0px; font-size: 16px;">×</span><span times="" new="" style="margin: 0px; padding: 0px; font-family: 微軟雅黑; font-size: 16px;">10</span></span><sup><span times="" new="" style="margin: 0px; padding: 0px; vertical-align: super; font-size: 16px;">10</span></sup><span style="margin: 0px; padding: 0px; font-family: 宋體;">Ω時(shí)，應(yīng)將被測(cè)物置于屏蔽箱內(nèi)，箱外殼接地，以防干擾</span></span></p><div id="eqckvv83f" class="tabledivclass" style="margin: 0px; padding: 0px; list-style: none; border: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap; width: 856.344px; float: left;"><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><span times="" new="" style="margin: 0px; padding: 0px;">4.9</span><span style="margin: 0px; padding: 0px; font-family: 宋體;">　在測(cè)試電阻率較大的材料時(shí)，</span><span style="margin: 0px; padding: 0px; font-family: 宋體; letter-spacing: 0px;">由于材料易極化，應(yīng)采用較高測(cè)試電壓。在進(jìn)行體積電阻和表面電阻測(cè)量時(shí)，應(yīng)先測(cè)體積電阻再測(cè)表面電阻，反之由于材料被極化而影響體積電阻。當(dāng)材料連續(xù)多次測(cè)量后容易產(chǎn)生極化，會(huì)使測(cè)量工作無法進(jìn)行下去，這時(shí)須停止對(duì)這種材料測(cè)試，置于凈處<span times="" new="" style="margin: 0px; padding: 0px; font-family: 微軟雅黑;">8</span></span><span times="" new="" letter-spacing:="" style="margin: 0px; padding: 0px;">h</span><span times="" new="" style="margin: 0px; padding: 0px; letter-spacing: 0px;">-10</span><span times="" new="" letter-spacing:="" style="margin: 0px; padding: 0px;">h</span><span style="margin: 0px; padding: 0px; font-family: 宋體; letter-spacing: 0px;">后再測(cè)量或者放在<a class="bjFfcClass" style="margin: 0px; padding: 0px; font-family: 微軟雅黑; text-decoration-line: underline; color: rgb(0, 0, 0);"><span style="margin: 0px; padding: 0px; font-family: 宋體; letter-spacing: 0px;">酒精</span></a>內(nèi)清洗，烘干，等冷卻后再進(jìn)行測(cè)量。</span></span></p></div><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><br data-filtered="filtered"/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 16px;">　　在對(duì)同一塊試樣而采用不同測(cè)試電壓測(cè)量時(shí)，一般情況下所選擇的測(cè)試電壓越高所測(cè)得的電阻值偏低。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">4.10</span><span style="margin: 0px; padding: 0px; font-family: 宋體; font-size: 14px;"><span style="margin: 0px; padding: 0px; font-size: 16px;">　本儀器顯示范圍為</span><span times="" new="" style="margin: 0px; padding: 0px; font-family: 微軟雅黑; font-size: 16px;">0.200~1.999</span><span style="margin: 0px; padding: 0px; font-size: 16px;">，如儀器顯示值小于</span><span times="" new="" style="margin: 0px; padding: 0px; font-family: 微軟雅黑; font-size: 16px;">0.200</span><span style="margin: 0px; padding: 0px; font-size: 16px;">時(shí)，應(yīng)將電阻量程選擇開關(guān)降低一檔。如儀器顯示值為</span><span times="" new="" style="margin: 0px; padding: 0px; font-family: 微軟雅黑; font-size: 16px;">1.999</span><span style="margin: 0px; padding: 0px; font-size: 16px;">時(shí)，應(yīng)將電阻量程選擇開關(guān)升高一檔。依次類推直到儀器的顯示值處于</span><span times="" new="" style="margin: 0px; padding: 0px; font-family: 微軟雅黑; font-size: 16px;">0.200~1.999</span><span style="margin: 0px; padding: 0px; font-size: 16px;">之間。</span></span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">4.11</span><span style="margin: 0px; padding: 0px; font-family: 宋體;">　測(cè)試時(shí)，人體不能觸及儀器的高壓輸出端及其連接物，以防高壓觸電危險(xiǎn)。同時(shí)儀器高壓端也不能碰地，避免造成高壓短路。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">4.12</span><span style="margin: 0px; padding: 0px; font-family: 宋體;">　避免在下列環(huán)境中使用：</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap; text-indent: 28px;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">a</span><span style="margin: 0px; padding: 0px; font-family: 宋體;">　避免放置陽(yáng)光直射，雨淋或潮濕之處。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 微軟雅黑; color: rgb(51, 51, 51); font-size: 13px; text-wrap: wrap; text-indent: 28px;"><span style="margin: 0px; padding: 0px; font-size: 16px;"><span times="" new="" font-size:="" style="margin: 0px; padding: 0px;">b</span><span style="margin: 0px; padding: 0px; font-family: 宋體;">　請(qǐng)遠(yuǎn)離火源及高溫，以防機(jī)器溫度過高。</span></span></p><p><br/></p> <div class="eqckvv83f" id="news_sx"><li id="eqckvv83f" class="sx_left">上一篇：<a href="/Article-528185.html">PC40B型高絕緣電阻測(cè)量?jī)x 講解</a> <br />下一篇：<a href="/Article-528158.html">PC-40B高絕緣電阻測(cè)量?jī)x使用方法</a></li></div> </div> </div> </div> </div> <script 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