主(zhu)要的(de)(de)(de)(de)主(zhu)干網大(da)(da)(da)部分(fen)是由(you)540同(tong)(tong)(tong)(tong)軸(zhou)(zhou)(zhou)電(dian)(dian)(dian)纜(lan)(lan)鋪設的(de)(de)(de)(de) 。但在實際應用中(zhong),540同(tong)(tong)(tong)(tong)軸(zhou)(zhou)(zhou)電(dian)(dian)(dian)纜(lan)(lan)接(jie)(jie)(jie)(jie)頭(tou)故(gu)(gu)障(zhang)(zhang)(zhang)率太(tai)高(gao)。經檢(jian)查發現(xian),是因(yin)為(wei)早期鋪設的(de)(de)(de)(de)540同(tong)(tong)(tong)(tong)軸(zhou)(zhou)(zhou)電(dian)(dian)(dian)纜(lan)(lan)的(de)(de)(de)(de)電(dian)(dian)(dian)纜(lan)(lan)頭(tou)是直(zhi)(zhi)接(jie)(jie)(jie)(jie)接(jie)(jie)(jie)(jie)在放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)輸(shu)(shu)出(chu)、輸(shu)(shu)入(ru)端(duan)的(de)(de)(de)(de),在每次(ci)調節(jie)放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)(qi)(qi)損(sun)壞更(geng)換(huan)(huan)的(de)(de)(de)(de)過程(cheng)中(zhong),都(dou)會(hui)(hui)因(yin)540同(tong)(tong)(tong)(tong)軸(zhou)(zhou)(zhou)電(dian)(dian)(dian)纜(lan)(lan)太(tai)硬,造(zao)成540同(tong)(tong)(tong)(tong)軸(zhou)(zhou)(zhou)電(dian)(dian)(dian)纜(lan)(lan)與(yu)放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)接(jie)(jie)(jie)(jie)頭(tou)處(chu)隨著放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)擺動(dong)(dong)而擺動(dong)(dong),時間(jian)長(chang)了(le)就造(zao)成接(jie)(jie)(jie)(jie)觸(chu)不良而產(chan)生(sheng)故(gu)(gu)障(zhang)(zhang)(zhang)。將(jiang)這些接(jie)(jie)(jie)(jie)頭(tou)全(quan)部作了(le)一點改動(dong)(dong)后,上(shang)述故(gu)(gu)障(zhang)(zhang)(zhang)再沒有(you)發生(sheng)。改動(dong)(dong)步驟如下:先將(jiang)電(dian)(dian)(dian)纜(lan)(lan)的(de)(de)(de)(de)輸(shu)(shu)出(chu)、輸(shu)(shu)入(ru)端(duan)并齊、剪短,放(fang)(fang)(fang)(fang)置在放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)上(shang)方,再重新裝上(shang)540電(dian)(dian)(dian)纜(lan)(lan)頭(tou)。再在兩(liang)個(ge)電(dian)(dian)(dian)纜(lan)(lan)頭(tou)的(de)(de)(de)(de)F頭(tou)處(chu)分(fen)別接(jie)(jie)(jie)(jie)上(shang)駁(bo)接(jie)(jie)(jie)(jie)器(qi)(qi)(qi)(qi),同(tong)(tong)(tong)(tong)時用兩(liang)條(tiao)長(chang)度適當的(de)(de)(de)(de)過橋線分(fen)別接(jie)(jie)(jie)(jie)上(shang)兩(liang)個(ge)駁(bo)接(jie)(jie)(jie)(jie)器(qi)(qi)(qi)(qi)在放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)輸(shu)(shu)出(chu)、輸(shu)(shu)入(ru)端(duan),這樣每次(ci)調節(jie)或更(geng)換(huan)(huan)放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)(qi)(qi)時,放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)(qi)(qi)與(yu)540同(tong)(tong)(tong)(tong)軸(zhou)(zhou)(zhou)電(dian)(dian)(dian)纜(lan)(lan)之間(jian)的(de)(de)(de)(de)互(hu)動(dong)(dong)將(jiang)會(hui)(hui)由(you)于兩(liang)條(tiao)過橋線的(de)(de)(de)(de)柔(rou)性而減至(zhi)*低。過橋線*好選用直(zhi)(zhi)徑(jing)(jing)為(wei)1.5mm芯(xin)(xin)線的(de)(de)(de)(de)同(tong)(tong)(tong)(tong)軸(zhou)(zhou)(zhou)電(dian)(dian)(dian)纜(lan)(lan),將(jiang)會(hui)(hui)有(you)可能導致直(zhi)(zhi)徑(jing)(jing)為(wei)1mm同(tong)(tong)(tong)(tong)軸(zhou)(zhou)(zhou)電(dian)(dian)(dian)纜(lan)(lan)兩(liang)端(duan)的(de)(de)(de)(de)芯(xin)(xin)線與(yu)駁(bo)接(jie)(jie)(jie)(jie)器(qi)(qi)(qi)(qi)或放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)(qi)(qi)之間(jian)產(chan)生(sheng)接(jie)(jie)(jie)(jie)觸(chu)不良,因(yin)為(wei)直(zhi)(zhi)徑(jing)(jing)為(wei)1mm同(tong)(tong)(tong)(tong)軸(zhou)(zhou)(zhou)電(dian)(dian)(dian)纜(lan)(lan)的(de)(de)(de)(de)芯(xin)(xin)線過細,駁(bo)接(jie)(jie)(jie)(jie)器(qi)(qi)(qi)(qi)或放(fang)(fang)(fang)(fang)大(da)(da)(da)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)兩(liang)片彈簧夾片對其(qi)夾緊(jin)的(de)(de)(de)(de)力度過小,因(yin)而會(hui)(hui)產(chan)生(sheng)打火現(xian)象而導致故(gu)(gu)障(zhang)(zhang)(zhang)的(de)(de)(de)(de)產(chan)生(sheng)。
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