高壓(ya)(ya)放電棒是(shi)利用新型絕(jue)緣(yuan)材料加工而成。它(ta)具有能(neng)拉長，又能(neng)收(shou)縮的(de)特點。便(bian)(bian)攜式伸縮型高壓(ya)(ya)放電棒便(bian)(bian)于在(zai)室外(wai)各項高電壓(ya)(ya)試(shi)驗中(zhong)使用，特別在(zai)做直(zhi)流耐壓(ya)(ya)試(shi)驗后，對(dui)試(shi)品上積累的(de)電荷，進行對(dui)地放電，確保人身安全。伸縮型高壓(ya)(ya)放電棒便(bian)(bian)于攜帶，方便(bian)(bian)、靈活(huo)，具有體積小(xiao)、重量(liang)輕、安全。

   放電棒使用方(fang)法

1、將便攜式伸縮(suo)型高壓放電棒(bang)伸縮(suo)部分(fen)全(quan)部拉出。 　　

2、把配制(zhi)好(hao)的接地線插頭插入放電棒的頭端(duan)部(bu)位的插孔內，將地線的另(ling)一端(duan)與大(da)地連接，接地要可靠。 　　

3、放電時應在試驗完畢后，即直流發生器的控制箱的升壓旋鈕回到零位上，此時可觀察直流高壓發生器控制箱上的電壓表的電壓下降到15kV～20kV左右，方可放電。 　　

4、放(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)時應先用放(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)棒的(de)前端的(de)金屬尖(jian)頭，慢(man)慢(man)的(de)去(qu)靠近已斷開試驗電(dian)(dian)(dian)源的(de)試品。此時放(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)棒釋放(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)能是(shi)經(jing)過(guo)一放(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)電(dian)(dian)(dian)阻進行對地(di)(di)(di)放(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)。然后再用放(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)棒上(shang)(shang)接地(di)(di)(di)線上(shang)(shang)的(de)鉤子(zi)去(qu)鉤住試品，進行第(di)二次直接對地(di)(di)(di)放(fang)(fang)(fang)(fang)(fang)電(dian)(dian)(dian)。

放電(dian)棒注意事項

1、對大(da)電(dian)(dian)(dian)(dian)(dian)(dian)容試品放電(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)，須在試驗(yan)完畢后(hou)，斷開試驗(yan)電(dian)(dian)(dian)(dian)(dian)(dian)源后(hou)，應(ying)該等待一段時(shi)(shi)間(jian)后(hou)，使(shi)試品上的電(dian)(dian)(dian)(dian)(dian)(dian)荷通(tong)過倍壓筒及(ji)試品本身對地(di)自放電(dian)(dian)(dian)(dian)(dian)(dian)。此時(shi)(shi)可觀(guan)察控制箱上的電(dian)(dian)(dian)(dian)(dian)(dian)壓表電(dian)(dian)(dian)(dian)(dian)(dian)壓數在逐步下降跌落，當電(dian)(dian)(dian)(dian)(dian)(dian)壓表電(dian)(dian)(dian)(dian)(dian)(dian)壓下降到較(jiao)低的電(dian)(dian)(dian)(dian)(dian)(dian)壓，一般在5kV～15kV左右(you)，方可用(yong)放電(dian)棒去逐步移向試品附近。先通過間(jian)隙空氣游離(li)放電(dian)，此時可聽到嘶嘶的(de)聲(sheng)音，當無(wu)聲(sheng)音后(hou)，用(yong)放電(dian)棒*去碰試品，zui后(hou)將試品直(zhi)接接地放電(dian)。 　　

2、大電(dian)(dian)容試品積累(lei)電(dian)(dian)荷的大小(xiao)與(yu)試品電(dian)(dian)容的大小(xiao)和施加電(dian)(dian)壓的高低(di)與(yu)時間的長短(duan)成正比。 　　

3、對幾公(gong)里以上的高(gao)壓電纜試驗(yan)結束后，放(fang)電時(shi)間一般都要很長，且需(xu)多次(ci)反復放(fang)電。電阻容量要很大，需(xu)訂購大容量的放(fang)電棒。 　　

4、嚴禁未拉(la)開試驗電源用(yong)放電棒對試品進行放電。 　　

5、嚴禁(jin)用腳踩及重物(wu)擠壓放(fang)電棒，嚴禁(jin)折彎、折斷放(fang)電棒。 　　

6、嚴(yan)禁將放(fang)電棒受(shou)潮，影(ying)響(xiang)絕緣強(qiang)度，應放(fang)在干(gan)燥的地方。