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。便攜式伸縮型高壓放電棒便于在室外各項高電壓試驗中使用，特別在做直流耐壓試驗后，對試品上積累的電荷，進行對地放電，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。

   放電(dian)棒使用方(fang)法

1、將(jiang)便攜式伸縮型高壓放電棒伸縮部分全部拉出。 　　

2、把配制(zhi)好的接(jie)地(di)線插頭(tou)插入放電(dian)棒的頭(tou)端(duan)部位(wei)的插孔(kong)內，將地(di)線的另一端(duan)與(yu)大(da)地(di)連接(jie)，接(jie)地(di)要可靠。 　　

3、放電(dian)(dian)時應(ying)在(zai)試(shi)驗完畢后(hou)，即直流發(fa)生(sheng)器的控制箱的升壓旋鈕回到(dao)零位上(shang)，此時可(ke)觀察直流高壓發(fa)生(sheng)器控制箱上(shang)的電(dian)(dian)壓表的電(dian)(dian)壓下降到(dao)15kV～20kV左右(you)，方可(ke)放電(dian)(dian)。 　　

4、放(fang)電(dian)(dian)時應(ying)先用(yong)放(fang)電(dian)(dian)棒(bang)的前(qian)端的金(jin)屬(shu)尖頭(tou)，慢(man)(man)慢(man)(man)的去靠近已(yi)斷(duan)開試(shi)(shi)驗電(dian)(dian)源的試(shi)(shi)品(pin)。此時放(fang)電(dian)(dian)棒(bang)釋放(fang)電(dian)(dian)能是經過一放(fang)電(dian)(dian)電(dian)(dian)阻進(jin)行(xing)對地放(fang)電(dian)(dian)。然后(hou)再用(yong)放(fang)電(dian)(dian)棒(bang)上(shang)接地線上(shang)的鉤(gou)子去鉤(gou)住試(shi)(shi)品(pin)，進(jin)行(xing)第二次(ci)直接對地放(fang)電(dian)(dian)。

放(fang)電棒注意(yi)事(shi)項

1、對大(da)電(dian)(dian)容試(shi)(shi)(shi)品(pin)(pin)(pin)放(fang)電(dian)(dian)時，須在試(shi)(shi)(shi)驗(yan)完畢后(hou)，斷開試(shi)(shi)(shi)驗(yan)電(dian)(dian)源后(hou)，應該等待一段時間后(hou)，使試(shi)(shi)(shi)品(pin)(pin)(pin)上的電(dian)(dian)荷通過(guo)倍壓(ya)筒及試(shi)(shi)(shi)品(pin)(pin)(pin)本身對地自放(fang)電(dian)(dian)。此(ci)時可(ke)觀察控制箱上的電(dian)(dian)壓(ya)表電(dian)(dian)壓(ya)數在逐(zhu)步下降跌落，當(dang)電(dian)(dian)壓(ya)表電(dian)(dian)壓(ya)下降到較低的電(dian)(dian)壓(ya)，一般在5kV～15kV左右，方可(ke)用(yong)放(fang)電(dian)(dian)棒去逐(zhu)步移(yi)向試(shi)(shi)(shi)品(pin)(pin)(pin)附近(jin)。先通過(guo)間隙空氣(qi)游離放(fang)電(dian)(dian)，此(ci)時可(ke)聽到嘶嘶的聲(sheng)音，當(dang)無聲(sheng)音后(hou)，用(yong)放(fang)電(dian)(dian)棒*去碰試(shi)(shi)(shi)品(pin)(pin)(pin)，zui后(hou)將試(shi)(shi)(shi)品(pin)(pin)(pin)直接接地放(fang)電(dian)(dian)。 　　

2、大電(dian)(dian)容試(shi)品積(ji)累(lei)電(dian)(dian)荷的大小與試(shi)品電(dian)(dian)容的大小和施加電(dian)(dian)壓的高低與時間的長短成正比。 　　

3、對幾公(gong)里(li)以上的高(gao)壓電(dian)(dian)纜試驗結束后(hou)，放(fang)電(dian)(dian)時間(jian)一般(ban)都要很長，且需多(duo)次反復放(fang)電(dian)(dian)。電(dian)(dian)阻容量(liang)要很大，需訂購大容量(liang)的放(fang)電(dian)(dian)棒(bang)。 　　

4、嚴禁未拉(la)開試驗電(dian)源用放電(dian)棒對試品進(jin)行(xing)放電(dian)。 　　

5、嚴禁用腳踩及重物擠壓(ya)放電(dian)棒，嚴禁折彎、折斷放電(dian)棒。 　　

6、嚴禁將放電棒受潮，影響絕(jue)緣強度(du)，應放在干燥(zao)的地方。