高(gao)壓(ya)放(fang)電(dian)棒是利用(yong)新型(xing)(xing)絕緣材料加工而成。它具有能拉長(chang)，又能收縮的特點。便(bian)(bian)(bian)攜(xie)式伸縮型(xing)(xing)高(gao)壓(ya)放(fang)電(dian)棒便(bian)(bian)(bian)于在室(shi)外(wai)各項高(gao)電(dian)壓(ya)試(shi)驗(yan)中使用(yong)，特別(bie)在做直流耐壓(ya)試(shi)驗(yan)后，對試(shi)品上積累的電(dian)荷，進行對地放(fang)電(dian)，確保人(ren)身安(an)全。伸縮型(xing)(xing)高(gao)壓(ya)放(fang)電(dian)棒便(bian)(bian)(bian)于攜(xie)帶(dai)，方便(bian)(bian)(bian)、靈活，具有體(ti)積小(xiao)、重量輕、安(an)全。

   放(fang)電棒使用方法

1、將便攜式伸縮型高(gao)壓(ya)放電棒伸縮部(bu)分全部(bu)拉出。 　　

2、把配制好(hao)的接(jie)地(di)線插(cha)頭(tou)插(cha)入(ru)放電棒的頭(tou)端(duan)部位的插(cha)孔內，將地(di)線的另一(yi)端(duan)與大地(di)連接(jie)，接(jie)地(di)要(yao)可靠(kao)。 　　

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(ke)放(fang)電。 　　

4、放(fang)(fang)(fang)電(dian)(dian)時(shi)(shi)應(ying)先用放(fang)(fang)(fang)電(dian)(dian)棒(bang)的前端的金屬尖(jian)頭，慢慢的去靠近已斷(duan)開試(shi)驗電(dian)(dian)源的試(shi)品(pin)。此時(shi)(shi)放(fang)(fang)(fang)電(dian)(dian)棒(bang)釋放(fang)(fang)(fang)電(dian)(dian)能是經(jing)過一放(fang)(fang)(fang)電(dian)(dian)電(dian)(dian)阻進行(xing)對(dui)地(di)放(fang)(fang)(fang)電(dian)(dian)。然(ran)后(hou)再用放(fang)(fang)(fang)電(dian)(dian)棒(bang)上接(jie)地(di)線上的鉤(gou)子去鉤(gou)住試(shi)品(pin)，進行(xing)第二次直接(jie)對(dui)地(di)放(fang)(fang)(fang)電(dian)(dian)。

放(fang)電棒注(zhu)意事(shi)項(xiang)

1、對大電(dian)(dian)(dian)(dian)(dian)容試(shi)品(pin)放(fang)電(dian)(dian)(dian)(dian)(dian)時，須在(zai)(zai)試(shi)驗完(wan)畢(bi)后，斷開試(shi)驗電(dian)(dian)(dian)(dian)(dian)源后，應該(gai)等待一段時間(jian)后，使(shi)試(shi)品(pin)上的(de)電(dian)(dian)(dian)(dian)(dian)荷通過倍(bei)壓(ya)(ya)筒及試(shi)品(pin)本身(shen)對地自放(fang)電(dian)(dian)(dian)(dian)(dian)。此時可觀察(cha)控(kong)制箱(xiang)上的(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)表(biao)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)數在(zai)(zai)逐(zhu)步(bu)下(xia)降(jiang)跌(die)落，當電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)表(biao)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)下(xia)降(jiang)到較低的(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)，一般在(zai)(zai)5kV～15kV左右，方(fang)可用(yong)放(fang)電(dian)棒(bang)去(qu)逐步(bu)移向試品附近。先通過間隙空氣(qi)游離放(fang)電(dian)，此時可聽到(dao)嘶嘶的聲(sheng)音，當無(wu)聲(sheng)音后，用(yong)放(fang)電(dian)棒(bang)*去(qu)碰(peng)試品，zui后將試品直接(jie)接(jie)地放(fang)電(dian)。 　　

2、大電(dian)(dian)容試品(pin)積累電(dian)(dian)荷(he)的大小與試品(pin)電(dian)(dian)容的大小和(he)施加電(dian)(dian)壓的高(gao)低與時間的長(chang)短成正(zheng)比。 　　

3、對幾(ji)公里(li)以上的高(gao)壓電(dian)纜試驗結束后，放電(dian)時間一般都要很長，且(qie)需多次反復放電(dian)。電(dian)阻容(rong)量(liang)要很大(da)，需訂購大(da)容(rong)量(liang)的放電(dian)棒(bang)。 ;　　

4、嚴禁(jin)未拉開試驗(yan)電源用放(fang)電棒對試品進行放(fang)電。 　　

5、嚴禁用腳踩(cai)及重(zhong)物(wu)擠(ji)壓放電棒，嚴禁折彎(wan)、折斷放電棒。 　　

6、嚴禁將放電棒受潮，影(ying)響絕緣(yuan)強度，應放在干燥(zao)的地方。