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交直流放電棒使用方法</span></div>  <div id="iqaqewgi6e" class="n-3 c-news"> <div id="iqaqewgi6e" class="newsnr"> <h1>交直流放電棒使用方法</h1> <p class="source"><span>日期：2018-12-13</span><span>瀏覽：1426次</span></p> <div> <p><span style="font-size:18px"><strong>交直流高壓放電棒</strong></span></p><p><span style="font-size:18px"><span style="font-family:times new roman">高壓放電棒是利用新型絕緣材料加工而成。它具有能拉長，又能收縮的特點(diǎn)。便攜式伸縮型高壓放電棒便于在室外各項(xiàng)高電壓試驗(yàn)中使用，特別在做直流耐壓試驗(yàn)后，對(duì)試品上積累的電荷，進(jìn)行對(duì)地放電，確保人身安全。伸縮型高壓放電棒便于攜帶，方便、靈活，具有體積小、重量輕、安全。</span></span></p><p><img alt="" src="http://img47.chem17.com/9/20181213/636803252680133623725.png" style="height:493px; width:771px" /></p><p><span style="font-size:18px"><strong>交直流放電棒</strong><strong>使用方法</strong></span></p><p><span style="font-size:18px"><span style="font-family:times new roman">1、</span><span style="font-family:times new roman">將便攜式伸縮型高壓放電棒伸縮部分全部拉出。　　</span></span></p><p><span style="font-size:18px"><span style="font-family:times new roman">2、</span><span style="font-family:times new roman">把配制好的接地線插頭插入放電棒的頭端部位的插孔內(nèi)，將地線的另一端與大地連接，接地要可靠。　　</span></span></p><p><span style="font-size:18px"><span style="font-family:times new roman">3、</span><span style="font-family:times new roman">放電時(shí)應(yīng)在試驗(yàn)完畢后，即直流發(fā)生器的控制箱的升壓旋鈕回到零位上，此時(shí)可觀察直流高壓發(fā)生器控制箱上的電壓表的電壓下降到15kV～20kV左右，方可放電。　　</span></span></p><p><span style="font-size:18px"><span style="font-family:times new roman">4、</span><span style="font-family:times new roman">放電時(shí)應(yīng)先用放電棒的前端的金屬尖頭，慢慢的去靠近已斷開試驗(yàn)電源的試品。此時(shí)放電棒釋放電能是經(jīng)過一放電電阻進(jìn)行對(duì)地放電。然后再用放電棒上接地線上的鉤子去鉤住試品，進(jìn)行第二次直接對(duì)地放電。</span></span></p><p><span style="font-size:18px"><strong>放電棒</strong><strong>注意事項(xiàng)</strong></span></p><p><span style="font-size:18px"><span style="font-family:times new roman">1、對(duì)大電容試品放電時(shí)，須在試驗(yàn)完畢后，斷開試驗(yàn)電源后，應(yīng)該等待一段時(shí)間后，使試品上的電荷通過倍壓筒及試品本身對(duì)地自放電。此時(shí)可觀察控制箱上的電壓表電壓數(shù)在逐步下降跌落，當(dāng)電壓表電壓下降到較低的電壓，一般在5kV～15kV左右，方可用放電棒去逐步移向試品附近。先通過間隙空氣游離放電，此時(shí)可聽到嘶嘶的聲音，當(dāng)無聲音后，用放電棒去碰試品，zui后將試品直接接地放電。　　</span></span></p><p><span style="font-size:18px"><span style="font-family:times new roman">2、大電容試品積累電荷的大小與試品電容的大小和施加電壓的高低與時(shí)間的長短成正比。　　</span></span></p><p><span style="font-size:18px"><span style="font-family:times new roman">3、對(duì)幾公里以上的高壓電纜試驗(yàn)結(jié)束后，放電時(shí)間一般都要很長，且需多次反復(fù)放電。電阻容量要很大，需訂購大容量的放電棒。　　</span></span></p><p><span style="font-size:18px"><span style="font-family:times new roman">4、嚴(yán)禁未拉開試驗(yàn)電源用放電棒對(duì)試品進(jìn)行放電。　　</span></span></p><p><span style="font-size:18px"><span style="font-family:times new roman">5、嚴(yán)禁用腳踩及重物擠壓放電棒，嚴(yán)禁折彎、折斷放電棒。　　</span></span></p><p><span style="font-size:18px"><span style="font-family:times new roman">6、嚴(yán)禁將放電棒受潮，影響絕緣強(qiáng)度，應(yīng)放在干燥的地方。</span></span></p> <div 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