電(dian)纜故(gu)(gu)障(zhang)定點(dian)儀(yi)是運(yun)用(yong)(yong)(yong)地震波接(jie)收器(qi)接(jie)收由(you)高壓發生器(qi)使用(yong)(yong)(yong)球隙與故(gu)(gu)障(zhang)點(dian)同步(bu)放電(dian)的原理(li)來實現定位查找。地震波接(jie)收器(qi)用(yong)(yong)(yong)于(yu)接(jie)收礦用電纜在(zai)放電過程(cheng)中所產生的(de)地震波(bo)信(xin)號，使用聲音的(de)大小**確定電纜故障的(de)**位置。
電(dian)(dian)(dian)磁信(xin)號接收器用(yong)(yong)于接收故障電(dian)(dian)(dian)纜在放電(dian)(dian)(dian)過程中所產生的電(dian)(dian)(dian)磁信(xin)號，使用(yong)(yong)電(dian)(dian)(dian)磁信(xin)號的強弱和有無，以確定故障電(dian)(dian)(dian)纜是否(fou)放電(dian)(dian)(dian)，及粗略判斷(duan)電(dian)(dian)(dian)纜的走向。
一(yi)般(ban)情況下(xia)，應將地(di)震(zhen)(zhen)(zhen)波(bo)接(jie)收(shou)(shou)器(qi)和電(dian)(dian)磁(ci)接(jie)收(shou)(shou)器(qi)配合使(shi)用，在(zai)電(dian)(dian)纜(lan)故(gu)障(zhang)(zhang)(zhang)附(fu)近，沿電(dian)(dian)纜(lan)走向“S”形前進，每1～1.5m為(wei)(wei)1測點(dian)(dian)，注(zhu)意(yi)辨聽地(di)震(zhen)(zhen)(zhen)波(bo)大小及觀察電(dian)(dian)磁(ci)信(xin)(xin)號(hao)的(de)(de)強(qiang)弱(ruo)。當電(dian)(dian)磁(ci)接(jie)收(shou)(shou)器(qi)收(shou)(shou)到電(dian)(dian)纜(lan)放電(dian)(dian)的(de)(de)電(dian)(dian)磁(ci)信(xin)(xin)號(hao)時(shi)，地(di)震(zhen)(zhen)(zhen)波(bo)接(jie)收(shou)(shou)器(qi)也(ye)同(tong)時(shi)收(shou)(shou)到地(di)震(zhen)(zhen)(zhen)波(bo)信(xin)(xin)號(hao)時(shi)，可(ke)判(pan)斷(duan)故(gu)障(zhang)(zhang)(zhang)點(dian)(dian)應在(zai)附(fu)近，一(yi)般(ban)距故(gu)障(zhang)(zhang)(zhang)點(dian)(dian)2米左右(you)才能接(jie)收(shou)(shou)到信(xin)(xin)號(hao)，此(ci)時(shi)應減小音量，在(zai)有地(di)震(zhen)(zhen)(zhen)波(bo)的(de)(de)范(fan)圍內(nei)加密(mi)探點(dian)(dian)，以0.2米為(wei)(wei)1探點(dian)(dian)，仔(zi)細偵聽，逐步縮小范(fan)圍，直至找(zhao)到聲(sheng)(sheng)(sheng)音*大點(dian)(dian)即為(wei)(wei)電(dian)(dian)纜(lan)故(gu)障(zhang)(zhang)(zhang)點(dian)(dian)。如何正(zheng)確判(pan)斷(duan)故(gu)障(zhang)(zhang)(zhang)點(dian)(dian)，故(gu)障(zhang)(zhang)(zhang)點(dian)(dian)kydl_yyew附(fu)近的(de)(de)放電(dian)(dian)聲(sheng)(sheng)(sheng)為(wei)(wei)沉悶的(de)(de)“咚、咚”聲(sheng)(sheng)(sheng)，而故(gu)障(zhang)(zhang)(zhang)點(dian)(dian)的(de)(de)放電(dian)(dian)聲(sheng)(sheng)(sheng)為(wei)(wei)清脆的(de)(de)“當、當”聲(sheng)(sheng)(sheng)，如同(tong)金屬的(de)(de)撞擊聲(sheng)(sheng)(sheng)。使(shi)用長期(qi)實踐，我們定位的(de)(de)故(gu)障(zhang)(zhang)(zhang)點(dian)(dian)精度達到了(le)與實際故(gu)障(zhang)(zhang)(zhang)點(dian)(dian)地(di)面誤差不大于0.1米。
道理雖然簡單，但受客(ke)觀因(yin)素的影(ying)響，能充(chong)分掌握(wo)此項(xiang)技術并非易事，在實踐中遇到(dao)了多(duo)點放電(dian)等多(duo)種疑難問題，其原因(yin)有：
①電纜多處(chu)受損，造成同時多處(chu)高壓擊穿放電；
②電(dian)纜故障點嚴重潮(chao)濕，在(zai)潮(chao)濕嚴重及電(dian)纜絕(jue)緣薄弱處(chu)放電(dian)。
揚州市紅(hong)旗電纜(lan)制造有限公(gong)司專業生(sheng)產和銷售礦用電纜(lan)，公(gong)司**廠內直銷聯系(xi)人;朱 仕 紅(hong) 曾 廣彬 13505274439 13301449424