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th").each(function?(i,o){ ????var $this=$(o),? ????height=$this.next().height(); ????$(this).css("height",height); var obj = $(o); var val = obj.text(); if(val == '' || val == null || val == undefined){ $(this).addClass('none'); }else{ $(this).removeClass('none'); } }); $(".proshowParameter table td").each(function?(i,o){ var obj = $(o); var val = obj.text(); if(val == '' || val == null || val == undefined){ $(this).addClass('none'); }else{ $(this).removeClass('none'); } }); } </script> <section class="proshowParameter"> <table style=" margin-bottom:20px;"> <tbody> <tr><th>品牌</th><td>其他品牌</td><th>產(chǎn)地類(lèi)別</th><td>國(guó)產(chǎn)</td></tr><tr><th>應(yīng)用領(lǐng)域</th><td>環(huán)保,地礦,能源,電子,交通</td> <th></th><td></td></tr> </tbody> </table> </section><p><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><span style="font-size:12pt"><span style="font-family:幼圓">ZC-90G<strong>高絕緣電阻測(cè)量?jī)x</strong></span></span></strong><span style="font-family:宋體,tahoma,arial; font-size:12pt"><span style="font-family:幼圓">是ZC-90家族中的新產(chǎn)品，是一款高性能的數(shù)字式超高阻與微電流綜合測(cè)量?jī)x，采用了 *的微電流測(cè)量器件,其特點(diǎn)為：</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">（1）電阻測(cè)量范圍高達(dá)0</span></span><span style="font-size:12pt"><span style="font-family:times new roman">—</span></span><span style="font-size:12pt"><span style="font-family:幼圓">2×10</span></span><sup><span style="font-size:12pt"><span style="font-family:幼圓">17</span></span></sup><span style="font-size:12pt"><span style="font-family:幼圓">Ω（直接測(cè)量，如采用電壓-電流法推算，則可測(cè)量超過(guò)10</span></span><sup><span style="font-size:12pt"><span style="font-family:幼圓">18</span></span></sup><span style="font-size:12pt"><span style="font-family:幼圓">Ω電阻），是目前超高阻測(cè)量能力zui強(qiáng)的數(shù)字式儀表，ZC-90G是取代ZC36、ZC46等指針式高阻計(jì)進(jìn)行絕緣材料體積電阻率與表面電阻率測(cè)量的*儀表。zui高分辨力為100Ω。</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">（2）全系列七種（10，25，50，100，250，500，1000V）輸出電壓，適用于電線電纜、絕緣材料、電子元器件、防靜電工程等一切領(lǐng)域作超高阻、微電導(dǎo)測(cè)量。</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">（3）微電流測(cè)量功能，電流測(cè)量范圍：0.1fA (10</span></span><sup><span style="font-size:12pt"><span style="font-family:幼圓">-16</span></span></sup><span style="font-size:12pt"><span style="font-family:幼圓">A)</span></span><span style="font-size:12pt"><span style="font-family:times new roman">—</span></span><span style="font-size:12pt"><span style="font-family:幼圓">199.9</span></span><span style="font-size:12pt"><span style="font-family:times new roman">μ</span></span><span style="font-size:12pt"><span style="font-family:幼圓">A, 是微電流測(cè)量靈敏度zui高、分辨力zui強(qiáng)的數(shù)字式儀表，適用于半導(dǎo)體器件測(cè)試、電子元器件生產(chǎn)、光電測(cè)量、生物電流測(cè)量、原子能研究、科學(xué)實(shí)驗(yàn)等一切微電流測(cè)量領(lǐng)域。</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">（4）內(nèi)置高性能可充電電池，免除了更換電池的麻煩，節(jié)省了更換電池的開(kāi)支。</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">（5）人性化的操作界面。大屏幕、高亮度的液晶顯示屏，除了測(cè)量結(jié)果顯示外，還有測(cè)量功能顯示、輸出電壓顯示、測(cè)量單位顯示、倍率方次顯示、電池低電壓告警顯示、誤操作告警顯示等，所有信息，一目了然。</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><span style="font-size:12pt"><span style="font-family:幼圓">絕緣電阻測(cè)量使用方法</span></span></strong></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">4.4.1 儀表與被測(cè)器件的連接</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><span style="font-size:12pt"><span style="font-family:幼圓">在開(kāi)始操作前, 儀表電源應(yīng)處于關(guān)閉位置, 在前一次測(cè)量結(jié)束后，應(yīng)經(jīng)過(guò)30秒左右的內(nèi)部放電時(shí)間, 以確保操作人員免受高壓電擊。</span></span></strong> </p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">4.4.1.1將被測(cè)器件的兩端分別與儀表的高壓輸出端與測(cè)量輸入端（黑線紅夾子）相連，保護(hù)環(huán)與屏蔽端（黑線黑夾子）相連，如被測(cè)器件無(wú)保護(hù)環(huán)則屏蔽端空置。</span></span><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><span style="font-size:12pt"><span style="font-family:幼圓">注意：測(cè)量輸入端（黑線紅夾子）除了與被測(cè)器件連接外，必須*懸空，與其他任何物體的接觸將會(huì)嚴(yán)重影響高阻測(cè)量的準(zhǔn)確性。</span></span></strong></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">4.4.1.2單芯電線絕緣電阻測(cè)量: 將被測(cè)電線放入恒溫水箱中（電線兩頭放在水箱外），儀表高壓輸出端通過(guò)金屬導(dǎo)體與水接通，測(cè)量輸入端（紅）與芯線相連，屏蔽端（黑）空置不用，見(jiàn)圖7。</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">4.4.1.3多芯及有金屬外套的電纜絕緣電阻測(cè)量：測(cè)量輸入端（紅）與被測(cè)芯線相連，將其它芯線與外套 ( 電纜屏蔽層 ) 連在一起后與儀表的高壓端連接，屏蔽端（黑）空置不用，見(jiàn)圖8。 </span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">4.4.1.4 防靜電工程表面電阻測(cè)量: 與防靜電工程電阻測(cè)量標(biāo)準(zhǔn)電極配套使用（選購(gòu)件），將儀表的高壓輸出端與測(cè)量輸入端分別與兩個(gè)電極相連接（屏蔽端空置不用），剝?nèi)ル姌O下表面黑色導(dǎo)電膜上的保護(hù)膜(黃色)后，將兩個(gè)電極相隔一定距離置于被測(cè)物體表面（如測(cè)量防靜電地板，相隔距離一般為30cm），見(jiàn)圖9。</span></span><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><span style="font-size:12pt"><span style="font-family:幼圓">注意：測(cè)量過(guò)程中不得接觸電極的金屬面，以免受到高壓電擊。</span></span></strong><span style="font-size:12pt"><span style="font-family:幼圓">注意保證導(dǎo)電膜表面清潔平整，測(cè)量完畢應(yīng)將保護(hù)膜貼上，然后放在光滑平整的表面上，如有臟污，切忌利器檫刮，可以用普通封箱膠帶在導(dǎo)電膜表面粘吸，將臟物粘去。</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓"> 如果被測(cè)物體的表面不是平面，則可用導(dǎo)電膠在被測(cè)物體表面的相應(yīng)位置涂上兩行平行的膠條，然后將儀表的高壓輸出端與測(cè)量輸入端分別與兩個(gè)導(dǎo)電膠條相連接（屏蔽端空置不用）。</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">4.4.2 打開(kāi)電源開(kāi)關(guān)。</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">4.4.3將倍率（量程）開(kāi)關(guān)置于zui低檔位，儀表校零（見(jiàn)4.3.3節(jié)）。</span></span> </p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">ZC-90、 90A、90D、 90E、90F、90G的zui低倍率為×10</span></span><sup><span style="font-size:12pt"><span style="font-family:幼圓">5</span></span></sup><span style="font-size:12pt"><span style="font-family:幼圓">Ω，ZC-90B、 90C為×10</span></span><sup><span style="font-size:12pt"><span style="font-family:幼圓">4</span></span></sup><span style="font-size:12pt"><span style="font-family:幼圓">Ω，</span></span><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><span style="font-size:12pt"><span style="font-family:幼圓">電阻測(cè)量必須從zui低量程開(kāi)始，</span></span></strong><span style="font-size:12pt"><span style="font-family:幼圓">這是因?yàn)楸粶y(cè)物體可能有很大的分布電容，由此導(dǎo)致的充電電流可能會(huì)在開(kāi)始測(cè)量的瞬間對(duì)儀表高靈敏的輸入端造成危害。</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><img alt="高絕緣電阻測(cè)量?jī)x"data-bd-imgshare-binded="1" src="https://img67.chem17.com/gxhpic_c8334a7b44/fb0cc1e1a89f66d9a9b340b07d6a45704e2568fb0de83987bc470e888c1c33bc48d773a4f4073bd7.png" style="border:0px; height:218px; margin:0px; max-width:100%; padding:0px; width:589px"/> <span style="font-family:幼圓; font-size:16px"> 圖7 </span><span style="font-family:幼圓; font-size:16px">測(cè)量</span> <img alt="高絕緣電阻測(cè)量?jī)x"data-bd-imgshare-binded="1" src="https://img61.chem17.com/gxhpic_c8334a7b44/fb0cc1e1a89f66d9a9b340b07d6a45708d6eca0d69daa43881e099d5133d06f09139ff68fcd5b4ed.png" style="border:0px; height:218px; margin:0px; max-width:100%; padding:0px; width:568px"/> <span style="font-family:幼圓; font-size:12pt; line-height:1.6em; text-align:center">圖8 多芯電纜測(cè)量</span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><img alt="高絕緣電阻測(cè)量?jī)x"data-bd-imgshare-binded="1" src="https://img67.chem17.com/gxhpic_c8334a7b44/fb0cc1e1a89f66d9a9b340b07d6a457073637e02471d709651c7031691a9a601b6e89898bdb69386.png" style="border:0px; height:188px; margin:0px; max-width:100%; padding:0px; width:589px"/></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px; text-align: center;"><span style="font-size:12pt"><span style="font-family:幼圓"> 圖9 防靜電工程表面電阻測(cè)量</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">其中：</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">1. 儀表高壓輸出端 10. 被測(cè)單芯電纜</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">2. 儀表測(cè)量輸入端 11. 被測(cè)芯線</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">3. 屏蔽端夾子 (黑線黑夾子) 12. 其他芯線</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">4. 輸入端夾子 (黑線紅夾子) 13. 連接線</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">5. 高壓端夾子 (紅線紅夾子，90G為黑色屏蔽線) 14. 電纜屏蔽層（或金屬外套）</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">6. 連接線 15. 被測(cè)多芯電纜</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">7. 金屬導(dǎo)體 16. 防靜電工程電阻測(cè)量標(biāo)準(zhǔn)電極</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">8. 恒溫水浴箱 (圖中未包括恒溫部分) 17. 導(dǎo)電膜</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">9. 水 18. 被測(cè)材料</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><br/></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><br/></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><br/></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">4.4.4 選擇合適的測(cè)量電壓</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓"> 測(cè)量電壓的選擇是由被測(cè)物體的特性以及測(cè)量本身的技術(shù)規(guī)范而確定的, 不同的測(cè)量電壓可能導(dǎo)致不同的測(cè)量結(jié)果，這是因?yàn)榻^緣體的導(dǎo)電機(jī)理與金屬的導(dǎo)電機(jī)理有本質(zhì)上的不同，因此，除了特制的標(biāo)準(zhǔn)電阻外，一般的被測(cè)對(duì)象都有較高的負(fù)電壓系數(shù)，即測(cè)量電壓越高，電阻讀數(shù)越小。將高壓選擇開(kāi)關(guān)撥至相應(yīng)的電壓檔位就可以獲得所需的測(cè)量電壓。</span></span><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><span style="font-size:12pt"><span style="font-family:幼圓">注意：由于儀表內(nèi)部高壓電容的儲(chǔ)能較大，內(nèi)部放電時(shí)間要30秒左右，因此從一種測(cè)量電壓時(shí)改變?yōu)榱硪环N測(cè)量電壓時(shí)，功能開(kāi)關(guān)必須先放在“放電調(diào)零"檔位，30秒后才能開(kāi)始新選擇的電壓的測(cè)量，否則測(cè)量電壓可能大幅度高于額定值，損壞被測(cè)器件，在電壓未到達(dá)額定值之前，儀表讀數(shù)也不正確。</span></span></strong></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">4.4.5倍率（量程）選擇</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓"> （ZC-90，90A，90B，90C）將功能開(kāi)關(guān)（16）由“調(diào)零"檔經(jīng)“放電"、“充電"檔撥至“測(cè)量"檔位, 測(cè)量電壓施加在被測(cè)對(duì)象上，電阻測(cè)量開(kāi)始；</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓"> ZC-90（新版）、90D、90E，90F將將高壓（校零）選擇開(kāi)關(guān)（15）由“放電校零"檔經(jīng)“充電"檔撥至所選的電壓檔位，測(cè)量電壓施加在被測(cè)對(duì)象上，電阻測(cè)量開(kāi)始；</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓"> ZC-90G將“電池</span></span><span style="font-size:12pt"><span style="font-family:times new roman">—</span></span><span style="font-size:12pt"><span style="font-family:幼圓">測(cè)量"選擇開(kāi)關(guān)（20）撥至“測(cè)量"檔位，將 “電流</span></span><span style="font-size:12pt"><span style="font-family:times new roman">—</span></span><span style="font-size:12pt"><span style="font-family:幼圓">電阻"選擇開(kāi)關(guān)（21）撥至“電阻"檔位，此時(shí)顯示屏上出現(xiàn)“R（Ω）"字符，說(shuō)明儀表進(jìn)入電阻測(cè)量狀態(tài)，將高壓（校零）選擇開(kāi)關(guān)（15）由“000" （校零、放電）檔撥至所選的電壓檔位，測(cè)量電壓施加在被測(cè)對(duì)象上，電阻測(cè)量開(kāi)始。</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓"> 注意觀察儀表示值，如顯示屏出現(xiàn)“1</span></span><span style="font-size:12pt"><span style="font-family:times new roman">—</span></span><span style="font-size:12pt"><span style="font-family:幼圓">"（單*個(gè)“1"字后面沒(méi)讀數(shù)）說(shuō)明儀表量程過(guò)小。逐步將倍率（量程）開(kāi)關(guān)按順時(shí)針?lè)较蛐D(zhuǎn)，當(dāng)儀表出現(xiàn)讀數(shù)后應(yīng)立即停止轉(zhuǎn)動(dòng)。通常, </span></span><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><span style="font-size:12pt"><span style="font-family:幼圓">儀表示值應(yīng)在100個(gè)字至1999個(gè)字之間（忽略小數(shù)點(diǎn)）</span></span></strong><span style="font-size:12pt"><span style="font-family:幼圓">，如果示值小于100個(gè)字，可以將倍率（量程）開(kāi)關(guān)按逆時(shí)針?lè)较蛐D(zhuǎn)一檔, 以求得*的準(zhǔn)確度與分辨力。如顯示屏上出現(xiàn)“</span></span><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><span style="font-size:12pt"><span style="font-family:幼圓">:</span></span></strong><span style="font-size:12pt"><span style="font-family:幼圓">"符號(hào)（ZC-90，90A，90B，90C）或“×"符號(hào)（ZC-90新、90D、90E、90F、90G）及報(bào)警蜂鳴聲（ZC-90G），說(shuō)明儀表處于量程過(guò)大狀態(tài)，應(yīng)迅速將量程（倍率）開(kāi)關(guān)逆時(shí)針?lè)较蛐D(zhuǎn)，如在zui低倍率檔仍出現(xiàn)“ </span></span>: <span style="font-size:12pt"><span style="font-family:幼圓">"或“×"符號(hào)，說(shuō)明被測(cè)器件短路，請(qǐng)速將開(kāi)關(guān)撥至“校零"</span></span><span style="font-size:12pt"><span style="font-family:幼圓">“放電校零"或“.000"</span></span><span style="font-size:12pt"><span style="font-family:幼圓">檔位，斷開(kāi)電阻測(cè)量回路。注意：</span></span><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><span style="font-size:12pt"><span style="font-family:幼圓">出現(xiàn)</span></span></strong><span style="font-size:12pt"><span style="font-family:幼圓">“ </span></span>: <span style="font-size:12pt"><span style="font-family:幼圓">"</span></span><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><span style="font-size:12pt"><span style="font-family:幼圓">或“×"符號(hào)時(shí)，儀表讀數(shù)無(wú)效。儀表輸入端受到過(guò)電流的沖擊，零位可能暫時(shí)偏移，通常放置一段時(shí)間可以恢復(fù)。</span></span></strong></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><span style="font-size:12pt"><span style="font-family:幼圓">被測(cè)對(duì)象的絕緣電阻 = 儀表示值×倍率 </span></span></strong></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">4.4.6 被測(cè)器件放電</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">測(cè)量結(jié)束后，（ZC-90，90A，90B，90C）將功能開(kāi)關(guān)（16）撥至“放電"或“校零"位置；（</span></span><span style="font-size:12pt"><span style="font-family:幼圓">ZC-90新、90D、</span></span><span style="font-size:12pt"><span style="font-family:幼圓">90E、90F、90G）將開(kāi)關(guān)（15）撥至“.000"檔位，斷開(kāi)測(cè)量電壓，并接通放電回路，經(jīng)過(guò)15</span></span><span style="font-size:12pt"><span style="font-family:times new roman">—</span></span><span style="font-size:12pt"><span style="font-family:幼圓">20 秒，被測(cè)器件充分放電后，操作人員方可接觸高壓端與測(cè)量端。 </span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">4.4.7 電線電纜每公里長(zhǎng)度絕緣電阻按下式換算 </span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><em><span style="font-size:12pt"><span style="font-family:幼圓">R</span></span></em></strong><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><em><sub><span style="font-size:12pt"><span style="font-family:幼圓">L</span></span></sub></em></strong><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><em><span style="font-size:12pt"><span style="font-family:幼圓"> = R</span></span></em></strong><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><em><sub><span style="font-size:12pt"><span style="font-family:幼圓">X </span></span></sub></em></strong><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><em><span style="font-size:12pt"><span style="font-family:幼圓">L</span></span></em></strong></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">式中:</span></span><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><em><span style="font-size:12pt"><span style="font-family:幼圓"> R</span></span></em></strong><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><em><sub><span style="font-size:12pt"><span style="font-family:幼圓">L</span></span></sub></em></strong><span style="font-size:12pt"><span style="font-family:times new roman">—</span></span><span style="font-size:12pt"><span style="font-family:幼圓">每公里長(zhǎng)度絕緣電阻，MΩ</span></span><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><span style="font-size:12pt"><span style="font-family:times new roman">·</span></span></strong> <span style="font-size:12pt"><span style="font-family:幼圓">km ; </span></span><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><em><span style="font-size:12pt"><span style="font-family:幼圓">R</span></span></em></strong><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><em><sub><span style="font-size:12pt"><span style="font-family:幼圓">X</span></span></sub></em></strong><span style="font-size:12pt"><span style="font-family:times new roman">—</span></span><span style="font-size:12pt"><span style="font-family:幼圓">試樣絕緣電阻，MΩ；</span></span><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><em><span style="font-size:12pt"><span style="font-family:幼圓">L</span></span></em></strong><span style="font-size:12pt"><span style="font-family:times new roman">—</span></span><span style="font-size:12pt"><span style="font-family:幼圓">試樣長(zhǎng)度，km</span></span></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><span style="font-size:12pt"><span style="font-family:幼圓">4.5 </span></span><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><span style="font-size:12pt"><span style="font-family:幼圓">電阻測(cè)量各量程有效測(cè)量范圍及zui高分辨力</span></span></strong></p><p style="margin: 0px; padding: 0px; font-family: 宋體, Tahoma, Arial; font-size: 14px;"><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><span style="font-size:12pt"><span style="font-family:幼圓">各量程范圍除了與倍率有關(guān)以外還與不同測(cè)量電壓時(shí)小數(shù)點(diǎn)的位置有關(guān)，</span></span></strong><span style="font-size:12pt"><span style="font-family:幼圓">如小數(shù)點(diǎn)在zui高位，*測(cè)量范圍為（0.100-1.999）</span></span><span style="font-size:12pt"><span style="font-family:times new roman">×</span></span><span style="font-size:12pt"><span style="font-family:幼圓">倍率，例：被測(cè)電阻在1.5</span></span><span style="font-size:12pt"><span style="font-family:times new roman">×</span></span><span style="font-size:12pt"><span style="font-family:幼圓">10</span></span><sup><span style="font-size:12pt"><span style="font-family:幼圓">9</span></span></sup><span style="font-size:12pt"><span style="font-family:幼圓">Ω左右，倍率應(yīng)選10</span></span><sup><span style="font-size:12pt"><span style="font-family:幼圓">9</span></span></sup><span style="font-size:12pt"><span style="font-family:幼圓">Ω，電阻在3</span></span><span style="font-size:12pt"><span style="font-family:times new roman">×</span></span><span style="font-size:12pt"><span style="font-family:幼圓">10</span></span><sup><span style="font-size:12pt"><span style="font-family:幼圓">9</span></span></sup><span style="font-size:12pt"><span style="font-family:幼圓">Ω，倍率應(yīng)選10</span></span><sup><span style="font-size:12pt"><span style="font-family:幼圓">10</span></span></sup><span style="font-size:12pt"><span style="font-family:幼圓">Ω，儀表示值為0.300</span></span><span style="font-size:12pt"><span style="font-family:times new roman">×</span></span><span style="font-size:12pt"><span style="font-family:幼圓">10</span></span><sup><span style="font-size:12pt"><span style="font-family:幼圓">10</span></span></sup><span style="font-size:12pt"><span style="font-family:幼圓">Ω；如小數(shù)點(diǎn)在第2位，*測(cè)量范圍為（1.00-19.99）</span></span><span style="font-size:12pt"><span style="font-family:times new roman">×</span></span><span style="font-size:12pt"><span style="font-family:幼圓">倍率；如小數(shù)點(diǎn)在第3位，*測(cè)量范圍為（10.0-199.9）</span></span><span style="font-size:12pt"><span style="font-family:times new roman">×</span></span><span style="font-size:12pt"><span style="font-family:幼圓">倍率，例：被測(cè)電阻在1.5</span></span><span style="font-size:12pt"><span style="font-family:times new roman">×</span></span><span style="font-size:12pt"><span style="font-family:幼圓">10</span></span><sup><span style="font-size:12pt"><span style="font-family:幼圓">9</span></span></sup><span style="font-size:12pt"><span style="font-family:幼圓">Ω，倍率可選10</span></span><sup><span style="font-size:12pt"><span style="font-family:幼圓">8</span></span></sup><span style="font-size:12pt"><span style="font-family:幼圓">Ω，儀表示值為15.0</span></span><span style="font-size:12pt"><span style="font-family:times new roman">×</span></span><span style="font-size:12pt"><span style="font-family:幼圓">10</span></span><sup><span style="font-size:12pt"><span style="font-family:幼圓">8</span></span></sup><span style="font-size:12pt"><span style="font-family:幼圓">Ω，倍率也可選10</span></span><sup><span style="font-size:12pt"><span style="font-family:幼圓">8</span></span></sup><span style="font-size:12pt"><span style="font-family:幼圓">Ω，儀表示值為150.0</span></span><span style="font-size:12pt"><span style="font-family:times new roman">×</span></span><span style="font-size:12pt"><span style="font-family:幼圓">10</span></span><sup><span style="font-size:12pt"><span style="font-family:幼圓">7</span></span></sup><span style="font-size:12pt"><span style="font-family:幼圓">Ω,分辨率更高；除了zui低量程外，儀表的其他量程并非從0開(kāi)始，下列各表規(guī)定了各量程的有效測(cè)量范圍，及各測(cè)量電壓下的zui高分辨力, 注意：當(dāng)儀表讀數(shù)小于表中所列數(shù)值時(shí)，</span></span><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><span style="font-size:12pt"><span style="font-family:幼圓">只要顯示屏上不出現(xiàn)</span></span></strong><span style="font-size:12pt"><span style="font-family:幼圓">“ </span></span>: <span style="font-size:12pt"><span style="font-family:幼圓">"</span></span><strong style="font-family:微軟雅黑; font-size:16px; font-stretch:normal; font-variant-east-asian:normal; font-variant-numeric:normal; line-height:30px"><span style="font-size:12pt"><span style="font-family:幼圓">或“×"符號(hào)，讀數(shù)仍然有效</span></span></strong><span style="font-size:12pt"><span style="font-family:幼圓">。</span></span></p><p><br/></p><p><br/></p><p><br/></p></div> <div id="1571n5fppxr7" class="tagContent" id="tagContent1" style="display: block;"><link rel="stylesheet" type="text/css" href="/css/MessageBoard_style.css"> <script language="javascript" src="/skins/Scripts/order.js?v=20210318" type="text/javascript"></script> <a name="order" id="order"></a> <div id="1571n5fppxr7" class="ly_msg" id="ly_msg"> <form method="post" name="form2" id="form2"> <h3>留言框 </h3> <ul> <li> <h4 class="xh">產(chǎn)品：</h4> <div id="1571n5fppxr7" class="msg_ipt1"><input class="textborder" size="30" name="Product" 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