97久久精品午夜一区二区_粗大猛烈进出白浆视频_亚洲人成色4444在线观看_久久免费99精品国产自在现线

電(dian)(dian)(dian)(dian)(dian)流(liu)保(bao)(bao)險絲(si)(si)流(liu)保(bao)(bao)險絲(si)(si)在進(jin)行操作(zuo)的(de)(de)(de)(de)過(guo)(guo)程中(zhong)是(shi)一種保(bao)(bao)護電(dian)(dian)(dian)(dian)(dian)器的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)子元器件(jian)，在進(jin)行操作(zuo)的(de)(de)(de)(de)過(guo)(guo)程中(zhong)通常串聯在電(dian)(dian)(dian)(dian)(dian)路中(zhong)，在故障電(dian)(dian)(dian)(dian)(dian)流(liu)增大到(dao)一定(ding)數值時(shi)，其自身熔(rong)斷(duan)而切斷(duan)電(dian)(dian)(dian)(dian)(dian)路，達到(dao)保(bao)(bao)護電(dian)(dian)(dian)(dian)(dian)路中(zhong)其它設備的(de)(de)(de)(de)目的(de)(de)(de)(de)。在電(dian)(dian)(dian)(dian)(dian)路過(guo)(guo)電(dian)(dian)(dian)(dian)(dian)流(liu)保(bao)(bao)護組件(jian)中(zhong)常用的(de)(de)(de)(de)就(jiu)是(shi)電(dian)(dian)(dian)(dian)(dian)流(liu)保(bao)(bao)險絲(si)(si)。傳(chuan)統的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)流(liu)保(bao)(bao)險絲(si)(si)主要(yao)是(shi)由兩端(duan)帶有(you)金屬(shu)連接端(duan)子的(de)(de)(de)(de)管體和管內(nei)的(de)(de)(de)(de)金屬(shu)熔(rong)體這兩大部份(fen)組成且(qie)大多數電(dian)(dian)(dian)(dian)(dian)流(liu)保(bao)(bao)險絲(si)(si)的(de)(de)(de)(de)外(wai)型是(shi)圓(yuan)柱形的(de)(de)(de)(de)，即所說的(de)(de)(de)(de)管狀(zhuang)結構。

電流保險絲(si)的構造

一般(ban)電(dian)(dian)流(liu)保(bao)(bao)險(xian)絲由(you)三(san)個部分(fen)組(zu)成：一是(shi)(shi)(shi)熔(rong)體(ti)部分(fen)，它是(shi)(shi)(shi)電(dian)(dian)流(liu)保(bao)(bao)險(xian)絲的(de)(de)(de)核心，熔(rong)斷(duan)時(shi)起到(dao)切斷(duan)電(dian)(dian)路(lu)的(de)(de)(de)作用(yong)(yong)，電(dian)(dian)阻值盡可(ke)能地小且要一致(zhi)，重要的(de)(de)(de)是(shi)(shi)(shi)熔(rong)斷(duan)特性(xing)要一致(zhi)；二是(shi)(shi)(shi)電(dian)(dian)極部分(fen)，通(tong)常(chang)有兩個，它是(shi)(shi)(shi)熔(rong)體(ti)與電(dian)(dian)路(lu)聯(lian)接(jie)(jie)的(de)(de)(de)重要部件(jian)，它必(bi)須有良好的(de)(de)(de)導電(dian)(dian)性(xing)，不應產生明顯(xian)的(de)(de)(de)安裝接(jie)(jie)觸電(dian)(dian)阻，三(san)是(shi)(shi)(shi)支架部分(fen)，電(dian)(dian)流(liu)保(bao)(bao)險(xian)絲的(de)(de)(de)熔(rong)體(ti)一般(ban)都纖細柔軟(ruan)的(de)(de)(de)，支架的(de)(de)(de)作用(yong)(yong)就(jiu)是(shi)(shi)(shi)將熔(rong)體(ti)固定并使三(san)個部分(fen)成為(wei)剛性(xing)的(de)(de)(de)整體(ti)便于安裝、使用(yong)(yong)，它必(bi)須有良好的(de)(de)(de)機(ji)械強度(du)、絕(jue)緣(yuan)性(xing)、耐熱性(xing)和阻燃性(xing)，在使用(yong)(yong)中不應產生斷(duan)裂、變形、燃燒及(ji)短路(lu)等(deng)現象。

電流保險絲的作用

1.電流保險絲在一定程度(du)上能夠(gou)承(cheng)受由于電源(yuan)或者是外部干擾而發生電流波動(dong)時一定范圍的(de)過載。

2.當(dang)電(dian)(dian)路中出現較大的(de)過載電(dian)(dian)流(liu)時(shi)，電(dian)(dian)流(liu)保險絲應在規(gui)定的(de)時(shi)間內切斷過載電(dian)(dian)流(liu)，保護(hu)電(dian)(dian)路中其(qi)它電(dian)(dian)子零(ling)部件的(de)安(an)全(quan)。

3.當電(dian)路中發生短路出現很大電(dian)流時，電(dian)流保險絲能(neng)安(an)全地切斷電(dian)路，使它們免于因過電(dian)流造成破壞。