由于汽車(che)上(shang)(shang)的(de)(de)(de)電(dian)(dian)(dian)(dian)子設備較多，而且(qie)每個(ge)(ge)電(dian)(dian)(dian)(dian)子設備都(dou)會配有(you)(you)單獨的(de)(de)(de)保(bao)(bao)(bao)險(xian)(xian)(xian)絲(si)，為了日后(hou)的(de)(de)(de)更換(huan)與(yu)維修更方(fang)便(bian)，工程師在設計(ji)車(che)輛(liang)(liang)時(shi)會將(jiang)保(bao)(bao)(bao)險(xian)(xian)(xian)絲(si)集中在一(yi)(yi)(yi)(yi)個(ge)(ge)地(di)方(fang)，這個(ge)(ge)地(di)方(fang)就叫做(zuo)保(bao)(bao)(bao)險(xian)(xian)(xian)盒(he)。一(yi)(yi)(yi)(yi)般(ban)(ban)車(che)輛(liang)(liang)上(shang)(shang)都(dou)有(you)(you)兩(liang)(liang)個(ge)(ge)保(bao)(bao)(bao)險(xian)(xian)(xian)盒(he)，一(yi)(yi)(yi)(yi)個(ge)(ge)位(wei)于發(fa)動(dong)機(ji)(ji)艙(cang)(cang)內(nei)部(bu)；另(ling)一(yi)(yi)(yi)(yi)個(ge)(ge)位(wei)于方(fang)向盤(pan)左(zuo)(zuo)側(ce)(ce)或手套(tao)箱內(nei)。一(yi)(yi)(yi)(yi)般(ban)(ban)車(che)輛(liang)(liang)上(shang)(shang)都(dou)有(you)(you)兩(liang)(liang)個(ge)(ge)保(bao)(bao)(bao)險(xian)(xian)(xian)盒(he)，一(yi)(yi)(yi)(yi)個(ge)(ge)位(wei)于發(fa)動(dong)機(ji)(ji)艙(cang)(cang)內(nei)部(bu)，是負責(ze)車(che)輛(liang)(liang)外(wai)部(bu)電(dian)(dian)(dian)(dian)器的(de)(de)(de)正(zheng)常(chang)工作(zuo)，如車(che)燈、喇(la)叭、行車(che)電(dian)(dian)(dian)(dian)腦(nao)、空調壓縮機(ji)(ji)、玻璃(li)水電(dian)(dian)(dian)(dian)機(ji)(ji)等(deng)電(dian)(dian)(dian)(dian)路的(de)(de)(de)安全(quan)保(bao)(bao)(bao)護；另(ling)一(yi)(yi)(yi)(yi)個(ge)(ge)位(wei)于方(fang)向盤(pan)左(zuo)(zuo)側(ce)(ce)或手套(tao)箱內(nei)，負責(ze)車(che)內(nei)電(dian)(dian)(dian)(dian)器的(de)(de)(de)正(zheng)常(chang)工作(zuo)，如車(che)窗(chuang)升降、點煙器、電(dian)(dian)(dian)(dian)動(dong)座椅和(he)安全(quan)氣囊等(deng)。一(yi)(yi)(yi)(yi)般(ban)(ban)發(fa)動(dong)機(ji)(ji)艙(cang)(cang)內(nei)的(de)(de)(de)保(bao)(bao)(bao)險(xian)(xian)(xian)盒(he)都(dou)位(wei)于駕駛(shi)員一(yi)(yi)(yi)(yi)側(ce)(ce)，也有(you)(you)部(bu)分車(che)型(xing)的(de)(de)(de)保(bao)(bao)(bao)險(xian)(xian)(xian)盒(he)在相(xiang)反一(yi)(yi)(yi)(yi)側(ce)(ce)，但(dan)通常(chang)保(bao)(bao)(bao)險(xian)(xian)(xian)盒(he)都(dou)會被設計(ji)在發(fa)動(dong)機(ji)(ji)艙(cang)(cang)兩(liang)(liang)側(ce)(ce)，便(bian)于及時(shi)更換(huan)。保(bao)(bao)(bao)險(xian)(xian)(xian)絲(si)只是大家比較習慣的(de)(de)(de)稱呼，它(ta)真正(zheng)的(de)(de)(de)名字叫“熔斷器”。其主要作(zuo)用是當電(dian)(dian)(dian)(dian)路電(dian)(dian)(dian)(dian)流(liu)異常(chang)或超過其額定(ding)電(dian)(dian)(dian)(dian)流(liu)2倍以(yi)上(shang)(shang)時(shi)就會熔斷，起到(dao)電(dian)(dian)(dian)(dian)路保(bao)(bao)(bao)護的(de)(de)(de)作(zuo)用。需按照保(bao)(bao)(bao)險(xian)(xian)(xian)絲(si)盒(he)蓋上(shang)(shang)注明的(de)(de)(de)額定(ding)電(dian)(dian)(dian)(dian)流(liu)值更換(huan)保(bao)(bao)(bao)險(xian)(xian)(xian)絲(si)，不(bu)要改用比額定(ding)電(dian)(dian)(dian)(dian)流(liu)高的(de)(de)(de)保(bao)(bao)(bao)險(xian)(xian)(xian)絲(si)。深圳(zhen)汽車(che)系列保(bao)(bao)(bao)險(xian)(xian)(xian)絲(si)標準

汽車(che)保(bao)(bao)(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)(xian)絲(si)(si)在(zai)汽車(che)的(de)(de)(de)哪里？由于(yu)汽車(che)上(shang)的(de)(de)(de)零部(bu)件和(he)電子設(she)備很多，而且每(mei)個設(she)備都(dou)會(hui)(hui)裝(zhuang)有(you)保(bao)(bao)(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)(xian)絲(si)(si)，因此為了便于(yu)日(ri)(ri)后的(de)(de)(de)維修，每(mei)輛車(che)在(zai)設(she)計(ji)之(zhi)初，設(she)計(ji)師便把汽車(che)保(bao)(bao)(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)(xian)絲(si)(si)都(dou)集中設(she)計(ji)在(zai)一個地(di)方，而這個地(di)方被稱(cheng)為保(bao)(bao)(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)(xian)盒。汽車(che)保(bao)(bao)(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)(xian)絲(si)(si)的(de)(de)(de)日(ri)(ri)常養護(hu)由于(yu)汽車(che)保(bao)(bao)(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)(xian)絲(si)(si)是放在(zai)保(bao)(bao)(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)(xian)盒當中的(de)(de)(de)，一般(ban)情況下不用(yong)特(te)意養護(hu)，但需要注意的(de)(de)(de)是，保(bao)(bao)(bao)(bao)(bao)(bao)(bao)護(hu)保(bao)(bao)(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)(xian)絲(si)(si)的(de)(de)(de)保(bao)(bao)(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)(xian)盒蓋(gai)(gai)丟失的(de)(de)(de)話，一定不要讓保(bao)(bao)(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)(xian)絲(si)(si)暴露在(zai)外(wai)，以免發生保(bao)(bao)(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)(xian)絲(si)(si)短(duan)路。另(ling)外(wai)在(zai)覆蓋(gai)(gai)保(bao)(bao)(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)(xian)絲(si)(si)時，也不能隨(sui)意用(yong)其它材料替代(dai)，因為保(bao)(bao)(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)(xian)盒的(de)(de)(de)材質(zhi)是充分考慮了絕(jue)緣(yuan)和(he)耐高(gao)溫(wen)的(de)(de)(de)，隨(sui)意用(yong)其它材料覆蓋(gai)(gai)保(bao)(bao)(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)(xian)絲(si)(si)會(hui)(hui)有(you)發生火災的(de)(de)(de)危險(xian)(xian)(xian)(xian)(xian)(xian)。北(bei)京慢(man)熔保(bao)(bao)(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)(xian)絲(si)(si)日(ri)(ri)本汽車(che)保(bao)(bao)(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)(xian)絲(si)(si)是電流保(bao)(bao)(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)(xian)絲(si)(si)的(de)(de)(de)一種，當電路電流超過保(bao)(bao)(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)(xian)絲(si)(si)額定電流的(de)(de)(de)2倍時就會(hui)(hui)在(zai)幾秒內(nei)熔斷(duan)，起到保(bao)(bao)(bao)(bao)(bao)(bao)(bao)護(hu)的(de)(de)(de)作(zuo)用(yong)。

若(ruo)產(chan)(chan)生熱(re)量的(de)(de)(de)(de)速(su)(su)度(du)(du)等(deng)于熱(re)量消散的(de)(de)(de)(de)速(su)(su)度(du)(du)時(shi)，在(zai)相(xiang)當長時(shi)間內它也不(bu)(bu)會(hui)熔斷(duan)，若(ruo)產(chan)(chan)生熱(re)量的(de)(de)(de)(de)速(su)(su)度(du)(du)大于熱(re)量消失的(de)(de)(de)(de)速(su)(su)度(du)(du)時(shi)，那(nei)么產(chan)(chan)生的(de)(de)(de)(de)熱(re)量就(jiu)會(hui)越(yue)(yue)來(lai)越(yue)(yue)多(duo)(duo)，熱(re)量的(de)(de)(de)(de)增加就(jiu)會(hui)造成溫度(du)(du)的(de)(de)(de)(de)升(sheng)高，當溫度(du)(du)升(sheng)高到保(bao)(bao)險(xian)(xian)(xian)絲(si)(si)熔點以(yi)上時(shi)，保(bao)(bao)險(xian)(xian)(xian)絲(si)(si)就(jiu)會(hui)發生熔斷(duan)。隨著許多(duo)(duo)產(chan)(chan)品的(de)(de)(de)(de)不(bu)(bu)斷(duan)升(sheng)級與更新換(huan)代，目前(qian)的(de)(de)(de)(de)電(dian)子產(chan)(chan)品對(dui)保(bao)(bao)險(xian)(xian)(xian)絲(si)(si)的(de)(de)(de)(de)要求越(yue)(yue)來(lai)越(yue)(yue)高，為了能讓(rang)保(bao)(bao)險(xian)(xian)(xian)絲(si)(si)能繼續(xu)保(bao)(bao)護各種各樣(yang)產(chan)(chan)品電(dian)路安全，保(bao)(bao)險(xian)(xian)(xian)絲(si)(si)也需(xu)要不(bu)(bu)斷(duan)的(de)(de)(de)(de)改進。現(xian)在(zai)保(bao)(bao)險(xian)(xian)(xian)絲(si)(si)有很(hen)多(duo)(duo)類型，例(li)如一次性(xing)保(bao)(bao)險(xian)(xian)(xian)絲(si)(si)、自恢復(fu)保(bao)(bao)險(xian)(xian)(xian)絲(si)(si)、貼片(pian)類、插(cha)片(pian)類等(deng)不(bu)(bu)同(tong)封裝的(de)(de)(de)(de)保(bao)(bao)險(xian)(xian)(xian)絲(si)(si)，根據(ju)不(bu)(bu)同(tong)的(de)(de)(de)(de)保(bao)(bao)險(xian)(xian)(xian)絲(si)(si)類型可以(yi)應(ying)用到高壓(ya)低壓(ya)的(de)(de)(de)(de)工(gong)作環境(jing)中，現(xian)在(zai)保(bao)(bao)險(xian)(xian)(xian)絲(si)(si)在(zai)很(hen)多(duo)(duo)電(dian)子電(dian)器的(de)(de)(de)(de)電(dian)路中越(yue)(yue)來(lai)越(yue)(yue)重(zhong)要。

當(dang)介于常規(gui)不(bu)熔(rong)(rong)斷(duan)(duan)電(dian)(dian)(dian)流(liu)(liu)與(yu)(yu)相(xiang)關信息技術發(fa)展標準問(wen)題進行管(guan)理規(gui)定(ding)(ding)的(de)額定(ding)(ding)分(fen)斷(duan)(duan)能(neng)(neng)力（的(de)電(dian)(dian)(dian)流(liu)(liu)）之間的(de)電(dian)(dian)(dian)流(liu)(liu)可以通過(guo)作用于保(bao)(bao)險(xian)(xian)絲(si)時，保(bao)(bao)險(xian)(xian)絲(si)應能(neng)(neng)滿(man)(man)意地動(dong)作，而且對(dui)于我們(men)自己不(bu)會(hui)出(chu)現(xian)危及(ji)周圍環境(jing)。預期故(gu)障(zhang)電(dian)(dian)(dian)流(liu)(liu)保(bao)(bao)險(xian)(xian)絲(si)被布置在電(dian)(dian)(dian)路(lu)必(bi)須小于規(gui)定(ding)(ding)的(de)額定(ding)(ding)標準分(fen)斷(duan)(duan)能(neng)(neng)力的(de)電(dian)(dian)(dian)流(liu)(liu)，否(fou)則，當(dang)發(fa)生(sheng)故(gu)障(zhang)時保(bao)(bao)險(xian)(xian)絲(si)熔(rong)(rong)斷(duan)(duan)會(hui)持續(xu)電(dian)(dian)(dian)弧放電(dian)(dian)(dian)，點火(huo)器(qi)(qi)，保(bao)(bao)險(xian)(xian)絲(si)燒斷(duan)(duan)，連同(tong)(tong)與(yu)(yu)不(bu)能(neng)(neng)識別的(de)狀現(xian)象的(de)熔(rong)(rong)斷(duan)(duan)器(qi)(qi)接(jie)觸熔(rong)(rong)化。當(dang)然，分(fen)斷(duan)(duan)能(neng)(neng)力熔(rong)(rong)斷(duan)(duan)器(qi)(qi)較(jiao)低水(shui)平，以滿(man)(man)足要求(qiu)的(de)國家標準，使用相(xiang)同(tong)(tong)的(de)將與(yu)(yu)上述危害發(fa)生(sheng)。保(bao)(bao)險(xian)(xian)絲(si)的(de)熔(rong)(rong)斷(duan)(duan)電(dian)(dian)(dian)流(liu)(liu)額定(ding)(ding)值必(bi)須達到(dao)或(huo)超過(guo)電(dian)(dian)(dian)路(lu)的(de)很(hen)大故(gu)障(zhang)電(dian)(dian)(dian)流(liu)(liu)。

零(ling)功率(lv)電阻(zu)低(di)：自(zi)(zi)復(fu)(fu)保(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)自(zi)(zi)身阻(zu)抗較低(di)，正常工作(zuo)(zuo)時功率(lv)損耗小，表面溫度低(di)。過(guo)流(liu)(liu)保(bao)(bao)(bao)護(hu)速度快(kuai)：自(zi)(zi)復(fu)(fu)保(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)由于自(zi)(zi)身材料特性，過(guo)流(liu)(liu)狀態(tai)響應速度比其(qi)它(ta)過(guo)流(liu)(liu)保(bao)(bao)(bao)護(hu)裝置(zhi)快(kuai)得(de)多。自(zi)(zi)鎖(suo)(suo)運(yun)行：自(zi)(zi)復(fu)(fu)保(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)在過(guo)流(liu)(liu)保(bao)(bao)(bao)護(hu)狀態(tai)，以極小的(de)(de)電流(liu)(liu)鎖(suo)(suo)定在高阻(zu)狀態(tai)，只有切(qie)斷(duan)電源或過(guo)電流(liu)(liu)消失后，才會(hui)恢復(fu)(fu)低(di)阻(zu)狀態(tai)。自(zi)(zi)動復(fu)(fu)位(wei)：自(zi)(zi)復(fu)(fu)保(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)在起到過(guo)流(liu)(liu)保(bao)(bao)(bao)護(hu)作(zuo)(zuo)用(yong)后（故障(zhang)排(pai)除）自(zi)(zi)行復(fu)(fu)位(wei)，無需進行拆換。耐(nai)大電流(liu)(liu)：自(zi)(zi)復(fu)(fu)保(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)有極好的(de)(de)耐(nai)大電流(liu)(liu)能力，有的(de)(de)規格可(ke)承受100A電流(liu)(liu)沖擊。應用(yong)：PPTC的(de)(de)應用(yong)范圍(wei)很廣(guang)，可(ke)以用(yong)在各種(zhong)電子產(chan)品、通訊產(chan)品、電源供應器等(deng)。保(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)的(de)(de)作(zuo)(zuo)用(yong)是什么，誰知(zhi)道？杭州日產(chan)保(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)日本(ben)

過(guo)熱(re)保險絲是(shi)通過(guo)熱(re)控制，而不考慮(lv)當前的電流過(guo)大，但(dan)電器溫度要是(shi)超(chao)過(guo)了(le)額(e)定溫度它就會自動斷開。深(shen)圳汽(qi)車系列保險絲標準(zhun)

保(bao)險絲(si)的(de)(de)主要額定(ding)，正(zheng)如(ru)人(ren)們所(suo)(suo)期望(wang)的(de)(de)，在(zai)(zai)單位(wei)電(dian)(dian)流(liu):安培。雖(sui)然它們的(de)(de)工作依賴(lai)于保(bao)險絲(si)自身的(de)(de)電(dian)(dian)阻在(zai)(zai)電(dian)(dian)流(liu)過(guo)大(da)的(de)(de)情況下產生(sheng)(sheng)的(de)(de)自熱(re)，但它們對所(suo)(suo)保(bao)護(hu)的(de)(de)電(dian)(dian)路(lu)所(suo)(suo)產生(sheng)(sheng)的(de)(de)額外(wai)電(dian)(dian)阻微不足道。這在(zai)(zai)很大(da)程度上是(shi)通過(guo)使(shi)保(bao)險絲(si)盡(jin)可(ke)能(neng)短的(de)(de)實(shi)際可(ke)能(neng)實(shi)現。正(zheng)如(ru)普通電(dian)(dian)線(xian)的(de)(de)載(zai)流(liu)容量與它的(de)(de)長度(10規(gui)格實(shi)心銅線(xian)將(jiang)處(chu)理40安培的(de)(de)電(dian)(dian)流(liu)在(zai)(zai)自由空氣,無論多么(me)長或短的(de)(de)一(yi)段),某些(xie)材料和規(gui)格的(de)(de)保(bao)險絲(si)會(hui)吹在(zai)(zai)一(yi)定(ding)電(dian)(dian)流(liu)不管(guan)多長時間。由于長度不是(shi)一(yi)個因素在(zai)(zai)電(dian)(dian)流(liu)額定(ding)值，更(geng)短的(de)(de)可(ke)以使(shi)，它將(jiang)端到端電(dian)(dian)阻更(geng)少。深圳汽車(che)系(xi)列保(bao)險絲(si)標準

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