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保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)(si)(si)（結(jie)構、參(can)數及(ji)選(xuan)用(yong)(yong)(yong)）保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)(si)(si)是(shi)(shi)一(yi)(yi)(yi)(yi)種(zhong)(zhong)故意(yi)設置在(zai)(zai)(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)中對(dui)(dui)(dui)(dui)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)敏感(gan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)薄弱(ruo)環節(jie)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)元(yuan)件(jian)。在(zai)(zai)(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)正常(chang)(chang)工作(zuo)(zuo)時(shi)(shi)(shi)(shi)(shi)，它(ta)(ta)(ta)(ta)(ta)(ta)對(dui)(dui)(dui)(dui)所(suo)保(bao)(bao)(bao)(bao)(bao)護的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)沒有(you)影響(xiang)，它(ta)(ta)(ta)(ta)(ta)(ta)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)很小，沒有(you)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)，沒有(you)功率消耗。在(zai)(zai)(zai)(zai)(zai)節(jie)能(neng)(neng)(neng)(neng)(neng)燈中保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)(si)(si)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)值基本上(shang)(shang)沒有(you)影響(xiang)，有(you)時(shi)(shi)(shi)(shi)(shi)故意(yi)使用(yong)(yong)(yong)保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)，它(ta)(ta)(ta)(ta)(ta)(ta)既作(zuo)(zuo)保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)(si)(si)，又用(yong)(yong)(yong)來(lai)(lai)抑制電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)諧波(bo)失(shi)真。當電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)出(chu)現(xian)異常(chang)(chang)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)過(guo)(guo)大(da)(da)(da)或(huo)(huo)(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源被(bei)短(duan)路(lu)(lu)(lu)(lu)(lu)時(shi)(shi)(shi)(shi)(shi)，要(yao)求(qiu)保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)(si)(si)能(neng)(neng)(neng)(neng)(neng)將(jiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)快(kuai)速地(di)同電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源斷(duan)(duan)(duan)(duan)開(kai)(kai)，不(bu)(bu)致(zhi)引起其它(ta)(ta)(ta)(ta)(ta)(ta)元(yuan)件(jian)或(huo)(huo)(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器燃燒。贊成(cheng)(cheng)(cheng)火災，對(dui)(dui)(dui)(dui)使用(yong)(yong)(yong)者的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)財產(chan)(chan)、人身安(an)(an)(an)全帶來(lai)(lai)嚴重(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)不(bu)(bu)良后果。因此(ci)在(zai)(zai)(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)節(jie)能(neng)(neng)(neng)(neng)(neng)燈及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)鎮(zhen)流(liu)(liu)器中保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)(si)(si)安(an)(an)(an)全有(you)著舉足輕重(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)作(zuo)(zuo)用(yong)(yong)(yong)，在(zai)(zai)(zai)(zai)(zai)做(zuo)產(chan)(chan)品(pin)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)安(an)(an)(an)全認(ren)證（如(ru)(ru)UL、CSA、CUL、TUV）時(shi)(shi)(shi)(shi)(shi)，一(yi)(yi)(yi)(yi)定要(yao)采用(yong)(yong)(yong)已獲(huo)得國際上(shang)(shang)知名認(ren)證機構認(ren)可(ke)(ke)(ke)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)產(chan)(chan)品(pin)，切(qie)不(bu)(bu)可(ke)(ke)(ke)以(yi)(yi)為(wei)(wei)(wei)小題(ti)大(da)(da)(da)做(zuo)，而(er)冒(mao)然采用(yong)(yong)(yong)質次(ci)價低(di)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)劣(lie)質品(pin)，更(geng)不(bu)(bu)可(ke)(ke)(ke)在(zai)(zai)(zai)(zai)(zai)印刷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)板(ban)上(shang)(shang)做(zuo)一(yi)(yi)(yi)(yi)條線(xian)(xian)寬(kuan)較(jiao)細的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)走線(xian)(xian)來(lai)(lai)代替它(ta)(ta)(ta)(ta)(ta)(ta)。那樣，一(yi)(yi)(yi)(yi)定會給你的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)產(chan)(chan)品(pin)帶來(lai)(lai)安(an)(an)(an)全隱患，一(yi)(yi)(yi)(yi)旦引發(fa)火災，后果將(jiang)不(bu)(bu)堪設想(xiang)。一(yi)(yi)(yi)(yi)、保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)(si)(si)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)形狀(zhuang)(zhuang)(zhuang)及(ji)熔(rong)(rong)體(ti)結(jie)構?保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)(si)(si)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)形狀(zhuang)(zhuang)(zhuang)有(you)很多種(zhong)(zhong)，視(shi)使用(yong)(yong)(yong)場合(he)(he)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)不(bu)(bu)同而(er)不(bu)(bu)同。?常(chang)(chang)見的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)形狀(zhuang)(zhuang)(zhuang)為(wei)(wei)(wei)管(guan)(guan)(guan)(guan)(guan)狀(zhuang)(zhuang)(zhuang)，帶或(huo)(huo)(huo)不(bu)(bu)帶引線(xian)(xian)，管(guan)(guan)(guan)(guan)(guan)內有(you)熔(rong)(rong)體(ti)。?保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)管(guan)(guan)(guan)(guan)(guan)可(ke)(ke)(ke)以(yi)(yi)是(shi)(shi)玻(bo)璃管(guan)(guan)(guan)(guan)(guan)（低(di)分(fen)斷(duan)(duan)(duan)(duan)能(neng)(neng)(neng)(neng)(neng)力(li)）或(huo)(huo)(huo)陶瓷管(guan)(guan)(guan)(guan)(guan)（高(gao)分(fen)斷(duan)(duan)(duan)(duan)能(neng)(neng)(neng)(neng)(neng)力(li)），在(zai)(zai)(zai)(zai)(zai)陶瓷管(guan)(guan)(guan)(guan)(guan)內有(you)時(shi)(shi)(shi)(shi)(shi)還(huan)填充(chong)純凈的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)顆粒狀(zhuang)(zhuang)(zhuang)石英砂以(yi)(yi)用(yong)(yong)(yong)于(yu)滅弧(hu)，有(you)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)玻(bo)璃還(huan)可(ke)(ke)(ke)以(yi)(yi)變(bian)色，以(yi)(yi)指示(shi)熔(rong)(rong)體(ti)是(shi)(shi)否熔(rong)(rong)斷(duan)(duan)(duan)(duan)。?節(jie)能(neng)(neng)(neng)(neng)(neng)燈中常(chang)(chang)用(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)管(guan)(guan)(guan)(guan)(guan)狀(zhuang)(zhuang)(zhuang)保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)，有(you)時(shi)(shi)(shi)(shi)(shi)還(huan)需要(yao)在(zai)(zai)(zai)(zai)(zai)玻(bo)璃管(guan)(guan)(guan)(guan)(guan)及(ji)引線(xian)(xian)上(shang)(shang)加(jia)熱縮套(tao)管(guan)(guan)(guan)(guan)(guan)與(yu)(yu)周圍元(yuan)件(jian)絕緣，以(yi)(yi)免金屬套(tao)管(guan)(guan)(guan)(guan)(guan)及(ji)引線(xian)(xian)造成(cheng)(cheng)(cheng)其它(ta)(ta)(ta)(ta)(ta)(ta)元(yuan)件(jian)短(duan)路(lu)(lu)(lu)(lu)(lu)。不(bu)(bu)好的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)(si)(si)容(rong)易(yi)在(zai)(zai)(zai)(zai)(zai)受(shou)到溫度(du)和機械震動的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)影響(xiang)，經(jing)(jing)過(guo)(guo)整(zheng)(zheng)機的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)老化、儲(chu)存一(yi)(yi)(yi)(yi)段(duan)時(shi)(shi)(shi)(shi)(shi)間(jian)(jian)后，金屬帽與(yu)(yu)玻(bo)璃管(guan)(guan)(guan)(guan)(guan)之間(jian)(jian)開(kai)(kai)路(lu)(lu)(lu)(lu)(lu)，造成(cheng)(cheng)(cheng)整(zheng)(zheng)燈不(bu)(bu)亮。對(dui)(dui)(dui)(dui)于(yu)這(zhe)一(yi)(yi)(yi)(yi)點，一(yi)(yi)(yi)(yi)定要(yao)引起注(zhu)意(yi)。?保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)(si)(si)除管(guan)(guan)(guan)(guan)(guan)狀(zhuang)(zhuang)(zhuang)外，還(huan)有(you)形狀(zhuang)(zhuang)(zhuang)如(ru)(ru)晶體(ti)管(guan)(guan)(guan)(guan)(guan)，超小型電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)微型保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)管(guan)(guan)(guan)(guan)(guan)，為(wei)(wei)(wei)表面安(an)(an)(an)裝用(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)文頭超微型及(ji)粘著型保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)(si)(si)，粒狀(zhuang)(zhuang)(zhuang)型、薄膜型保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)(si)(si)，為(wei)(wei)(wei)了汽(qi)車工業專(zhuan)用(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)薄片(pian)插入式(shi)保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)(si)(si)，螺栓式(shi)及(ji)報警式(shi)保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)(si)(si)等。?還(huan)有(you)一(yi)(yi)(yi)(yi)種(zhong)(zhong)由(you)正溫度(du)系數（PTC）塑料聚合(he)(he)物(wu)制成(cheng)(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)可(ke)(ke)(ke)恢復(fu)式(shi)保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)(si)(si)，它(ta)(ta)(ta)(ta)(ta)(ta)是(shi)(shi)由(you)非導(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)聚合(he)(he)樹脂及(ji)高(gao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導(dao)(dao)率的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)碳(tan)(tan)(tan)黑所(suo)組成(cheng)(cheng)(cheng)。在(zai)(zai)(zai)(zai)(zai)正常(chang)(chang)工作(zuo)(zuo)時(shi)(shi)(shi)(shi)(shi)，碳(tan)(tan)(tan)黑高(gao)導(dao)(dao)體(ti)緊密(mi)地(di)連結(jie)成(cheng)(cheng)(cheng)晶狀(zhuang)(zhuang)(zhuang)，形成(cheng)(cheng)(cheng)一(yi)(yi)(yi)(yi)條低(di)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)導(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)通(tong)路(lu)(lu)(lu)(lu)(lu)讓電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)流(liu)(liu)過(guo)(guo)。而(er)在(zai)(zai)(zai)(zai)(zai)過(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)時(shi)(shi)(shi)(shi)(shi)，碳(tan)(tan)(tan)黑結(jie)晶隨(sui)著溫度(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)增高(gao)而(er)分(fen)解(jie)，聚合(he)(he)物(wu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)突增，造成(cheng)(cheng)(cheng)開(kai)(kai)路(lu)(lu)(lu)(lu)(lu)，切(qie)斷(duan)(duan)(duan)(duan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)，對(dui)(dui)(dui)(dui)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)起到保(bao)(bao)(bao)(bao)(bao)護的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)作(zuo)(zuo)用(yong)(yong)(yong)。當過(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)被(bei)解(jie)除，PTC聚合(he)(he)物(wu)冷卻，碳(tan)(tan)(tan)黑重(zhong)又組成(cheng)(cheng)(cheng)結(jie)晶體(ti)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)隨(sui)之降(jiang)低(di)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)又可(ke)(ke)(ke)通(tong)過(guo)(guo)。這(zhe)種(zhong)(zhong)保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)(si)(si)稱作(zuo)(zuo)自復(fu)式(shi)或(huo)(huo)(huo)可(ke)(ke)(ke)恢復(fu)式(shi)保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)(si)(si)，因為(wei)(wei)(wei)它(ta)(ta)(ta)(ta)(ta)(ta)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)是(shi)(shi)隨(sui)溫度(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)增加(jia)而(er)上(shang)(shang)升的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)，故是(shi)(shi)一(yi)(yi)(yi)(yi)種(zhong)(zhong)正溫度(du)系數的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)材(cai)料。這(zhe)種(zhong)(zhong)保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)(si)(si)對(dui)(dui)(dui)(dui)溫度(du)十分(fen)敏感(gan)，在(zai)(zai)(zai)(zai)(zai)選(xuan)擇其參(can)數時(shi)(shi)(shi)(shi)(shi)，必須考(kao)慮環境(jing)溫度(du)對(dui)(dui)(dui)(dui)它(ta)(ta)(ta)(ta)(ta)(ta)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)影響(xiang)。?保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)管(guan)(guan)(guan)(guan)(guan)內裝有(you)熔(rong)(rong)絲(si)(si)(si)(si)(si)(si)體(ti)，它(ta)(ta)(ta)(ta)(ta)(ta)是(shi)(shi)一(yi)(yi)(yi)(yi)種(zhong)(zhong)熱敏感(gan)元(yuan)件(jian)。低(di)壓(ya)熔(rong)(rong)絲(si)(si)(si)(si)(si)(si)鉛銻(ti)合(he)(he)金、鉛錫(xi)合(he)(he)金和銅絲(si)(si)(si)(si)(si)(si)三(san)種(zhong)(zhong)，其結(jie)構形式(shi)有(you)多種(zhong)(zhong)：如(ru)(ru)圓(yuan)絲(si)(si)(si)(si)(si)(si)、扁絲(si)(si)(si)(si)(si)(si)、單絲(si)(si)(si)(si)(si)(si)、雙絲(si)(si)(si)(si)(si)(si)、復(fu)合(he)(he)絲(si)(si)(si)(si)(si)(si)、直線(xian)(xian)狀(zhuang)(zhuang)(zhuang)、波(bo)浪(lang)(lang)狀(zhuang)(zhuang)(zhuang)、鋸(ju)齒狀(zhuang)(zhuang)(zhuang)及(ji)片(pian)狀(zhuang)(zhuang)(zhuang)等。此(ci)外，還(huan)有(you)組合(he)(he)式(shi)熔(rong)(rong)體(ti)、熔(rong)(rong)絲(si)(si)(si)(si)(si)(si)纏(chan)繞、加(jia)錫(xi)球或(huo)(huo)(huo)加(jia)金屬征(zheng)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)等。?根據熔(rong)(rong)體(ti)熔(rong)(rong)斷(duan)(duan)(duan)(duan)特性(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)不(bu)(bu)同，可(ke)(ke)(ke)以(yi)(yi)把(ba)保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)(si)(si)分(fen)為(wei)(wei)(wei)超快(kuai)熔(rong)(rong)斷(duan)(duan)(duan)(duan)型、快(kuai)熔(rong)(rong)斷(duan)(duan)(duan)(duan)型（延時(shi)(shi)(shi)(shi)(shi)型）三(san)類(lei)。前兩(liang)種(zhong)(zhong)常(chang)(chang)用(yong)(yong)(yong)在(zai)(zai)(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)(zu)(zu)性(xing)(xing)(xing)負載電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)中，保(bao)(bao)(bao)(bao)(bao)護一(yi)(yi)(yi)(yi)些對(dui)(dui)(dui)(dui)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)變(bian)動特別敏感(gan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)元(yuan)器件(jian)。延時(shi)(shi)(shi)(shi)(shi)型保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)(si)(si)，一(yi)(yi)(yi)(yi)般有(you)附(fu)加(jia)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)熱慣(guan)性(xing)(xing)(xing)，能(neng)(neng)(neng)(neng)(neng)承受(shou)正常(chang)(chang)啟動時(shi)(shi)(shi)(shi)(shi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)過(guo)(guo)載電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)。它(ta)(ta)(ta)(ta)(ta)(ta)用(yong)(yong)(yong)在(zai)(zai)(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)狀(zhuang)(zhuang)(zhuang)態變(bian)化有(you)較(jiao)大(da)(da)(da)浪(lang)(lang)涌(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)感(gan)性(xing)(xing)(xing)或(huo)(huo)(huo)容(rong)性(xing)(xing)(xing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)中，能(neng)(neng)(neng)(neng)(neng)經(jing)(jing)受(shou)開(kai)(kai)機或(huo)(huo)(huo)關時(shi)(shi)(shi)(shi)(shi)出(chu)現(xian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)浪(lang)(lang)涌(yong)脈(mo)沖(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)沖(chong)擊不(bu)(bu)至熔(rong)(rong)斷(duan)(duan)(duan)(duan)，而(er)當電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)出(chu)現(xian)故障或(huo)(huo)(huo)異常(chang)(chang)現(xian)象時(shi)(shi)(shi)(shi)(shi)，能(neng)(neng)(neng)(neng)(neng)較(jiao)快(kuai)地(di)斷(duan)(duan)(duan)(duan)開(kai)(kai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)，達到保(bao)(bao)(bao)(bao)(bao)護的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)目的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)。?對(dui)(dui)(dui)(dui)于(yu)低(di)功率因數電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)節(jie)能(neng)(neng)(neng)(neng)(neng)燈或(huo)(huo)(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)鎮(zhen)流(liu)(liu)器，交(jiao)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源通(tong)過(guo)(guo)整(zheng)(zheng)流(liu)(liu)二極管(guan)(guan)(guan)(guan)(guan)組電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)。在(zai)(zai)(zai)(zai)(zai)初次(ci)開(kai)(kai)機時(shi)(shi)(shi)(shi)(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)上(shang)(shang)還(huan)沒有(you)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)荷，可(ke)(ke)(ke)以(yi)(yi)視(shi)為(wei)(wei)(wei)短(duan)路(lu)(lu)(lu)(lu)(lu)，此(ci)時(shi)(shi)(shi)(shi)(shi)交(jiao)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源對(dui)(dui)(dui)(dui)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)是(shi)(shi)很大(da)(da)(da)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)，形成(cheng)(cheng)(cheng)浪(lang)(lang)涌(yong)脈(mo)沖(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)，比正常(chang)(chang)值大(da)(da)(da)幾倍(bei)或(huo)(huo)(huo)十幾倍(bei)，為(wei)(wei)(wei)幾安(an)(an)(an)培(pei)或(huo)(huo)(huo)十幾安(an)(an)(an)培(pei)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)器的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)容(rong)量越大(da)(da)(da)，浪(lang)(lang)涌(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)越大(da)(da)(da)，持續時(shi)(shi)(shi)(shi)(shi)間(jian)(jian)也越長，所(suo)以(yi)(yi)在(zai)(zai)(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)節(jie)能(neng)(neng)(neng)(neng)(neng)燈中一(yi)(yi)(yi)(yi)般要(yao)選(xuan)用(yong)(yong)(yong)慢斷(duan)(duan)(duan)(duan)型保(bao)(bao)(bao)(bao)(bao)險(xian)(xian)(xian)(xian)絲(si)(si)(si)(si)(si)(si)。