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轎車(che)(che)(che)的(de)保(bao)險絲一(yi)般都有兩個(ge)(ge)，一(yi)個(ge)(ge)位(wei)于(yu)(yu)發(fa)動機艙內(nei)部(bu)，是(shi)擔(dan)任車(che)(che)(che)輛外部(bu)電(dian)(dian)(dian)器(qi)(qi)的(de)正常作(zuo)業(ye)，如(ru)車(che)(che)(che)燈、喇叭、行(xing)車(che)(che)(che)電(dian)(dian)(dian)腦、空(kong)調壓縮機、玻璃水電(dian)(dian)(dian)機等(deng)電(dian)(dian)(dian)路的(de)安全(quan)維護(hu)。另(ling)一(yi)個(ge)(ge)位(wei)于(yu)(yu)方向盤左邊或手(shou)套箱內(nei)，擔(dan)任車(che)(che)(che)內(nei)電(dian)(dian)(dian)器(qi)(qi)的(de)正常作(zuo)業(ye)，如(ru)車(che)(che)(che)窗升(sheng)降、點煙器(qi)(qi)、電(dian)(dian)(dian)動座椅和安全(quan)氣囊。保(bao)險絲也(ye)叫熔斷器(qi)(qi)，其主(zhu)要(yao)作(zuo)用(yong)是(shi)當電(dian)(dian)(dian)路電(dian)(dian)(dian)流(liu)(liu)(liu)異(yi)常或超越(yue)其額定電(dian)(dian)(dian)流(liu)(liu)(liu)2倍以上時會熔斷，起(qi)到電(dian)(dian)(dian)路維護(hu)的(de)作(zuo)用(yong)。保(bao)險絲有兩個(ge)(ge)重要(yao)參數，一(yi)個(ge)(ge)是(shi)額定電(dian)(dian)(dian)流(liu)(liu)(liu)，另(ling)一(yi)個(ge)(ge)是(shi)額定電(dian)(dian)(dian)壓。使用(yong)時要(yao)根據(ju)保(bao)險絲的(de)電(dian)(dian)(dian)流(liu)(liu)(liu)和電(dian)(dian)(dian)壓來選擇相(xiang)對應規(gui)格的(de)保(bao)險絲。