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 高(gao)壓熔斷器的(de)作用(yong)是什(shen)么？常用(yong)的(de)熔斷器有哪些？

　　答：熔(rong)斷器(qi)（FU）是最為簡(jian)單和常用(yong)的保護電(dian)器(qi)，它的作用(yong)是在通過(guo)的電(dian)流超過(guo)規(gui)定(ding)值并(bing)經過(guo)一定(ding)的時(shi)間后熔(rong)體（熔(rong)絲或熔(rong)片）熔(rong)化(hua)而(er)分(fen)斷電(dian)流，斷開(kai)電(dian)路，在電(dian)路中起到過(guo)載（過(guo)負(fu)荷）和短(duan)路保護。

　　在輸配電(dian)(dian)(dian)系統中，對容量小且不太重要的負荷，廣(guang)(guang)泛(fan)采用(yong)高(gao)(gao)(gao)(gao)壓(ya)(ya)熔斷(duan)器(qi)作為高(gao)(gao)(gao)(gao)壓(ya)(ya)輸配電(dian)(dian)(dian)線路(lu)(lu)、電(dian)(dian)(dian)力變壓(ya)(ya)器(qi)、電(dian)(dian)(dian)壓(ya)(ya)互感器(qi)和電(dian)(dian)(dian)力電(dian)(dian)(dian)容器(qi)等電(dian)(dian)(dian)氣(qi)設備的短路(lu)(lu)和過(guo)負荷保護。戶內廣(guang)(guang)泛(fan)采用(yong)RN系列(lie)的高(gao)(gao)(gao)(gao)壓(ya)(ya)管式(shi)限(xian)流(liu)熔斷(duan)器(qi)，戶外(wai)則(ze)廣(guang)(guang)泛(fan)使用(yong)RW4、RW10F等型(xing)號的高(gao)(gao)(gao)(gao)壓(ya)(ya)跌開(kai)式(shi)熔斷(duan)器(qi)或RW10-35型(xing)的高(gao)(gao)(gao)(gao)壓(ya)(ya)限(xian)流(liu)熔斷(duan)器(qi)。