zaishiyongguochengzhong，qichebaoxiansizuodezhuyaozuoyongshidangdianluchuxianguzhanghuoyichangqingkuangshi，jiangyouxiaodibansuizhedianliudechixushenggao，qishebeineidedianliushenggaohuishidianluzhongmouxiezhongyaoqijianhuoguizhongqijianshoudaosunhuai。

由(you)於(yu)汽(qi)車(che)保(bao)險(xian)絲(si)座(zuo)電(dian)流(liu)過(guo)大(da)，極(ji)有(you)可(ke)能(neng)引(yin)發(fa)電(dian)路(lu)著(zhe)火(huo)，產(chan)品(pin)在(zai)使(shi)用(yong)中(zhong)不(bu)會(hui)受(shou)到(dao)電(dian)流(liu)的(de)傷(shang)害(hai)，也(ye)可(ke)避(bi)免(mian)由(you)於(yu)內(nei)部(bu)故(gu)障(zhang)而(er)對(dui)電(dian)子(zi)設(she)備(bei)造(zao)成(cheng)嚴(yan)重(zhong)傷(shang)害(hai)，所(suo)以(yi)每(mei)一(yi)保(bao)險(xian)絲(si)都(dou)有一個全規格的保險絲，當電流超過全規格時，保險絲會熔斷。

ruguojiangrongduanqifangzaidianluzhongfangzhidedang，taderongduanqihuizaidianliuyichangshangshengdaoyidinggaodushi，shishebeizishenrongduanqieduandianliu，congerqidaobaohudianluanquanyunxingdezuoyong。zhongsuozhouzhi
，rongduanqikeyiqibaohuzuoyong。cheyongrongduanqizuozhuangzhidedianlushicaiyongedingdianliuwei3安培的塑料銅芯軟線
，熔斷電流為1安培

，熔斷電流為2安培，除去一個小燈泡
，在I、J之間接入約2歐姆的電爐絲。因此當電源電壓為6伏，電流應為3安培
，接上開關K，熔絲熔斷。

cheliangbaoxiansizuozhuangzhidianluchuyuzhengchangqingkuang，yekeyudaoxianxiangdeng，huodianluchuxianguzhang
，baoxiansizuoweibaoxiansichuanzaidianluzhong，dangdianluchuxianguzhangshi

，zaidianliuzengjiadaoweixianchengduzhiqian，zidongqieduandianyuan，yibimianyiwaifasheng。