應急燈是在正常照明電源發生故障時,能有效地照明和顯示疏散通道,或能持續照明而不間斷工作的一類燈具。應急燈十大品牌有(you)哪些?應急燈(deng)什么牌子好?
國內(nei)使(shi)用的(de)應(ying)急(ji)照明系統以(yi)自帶電(dian)(dian)源(yuan)獨立控制(zhi)型為主,正常(chang)電(dian)(dian)源(yuan)接自普通照明供(gong)電(dian)(dian)回路中,平(ping)時對應(ying)急(ji)燈蓄(xu)(xu)電(dian)(dian)池充電(dian)(dian),當正常(chang)電(dian)(dian)源(yuan)切(qie)斷時,備(bei)用電(dian)(dian)源(yuan)(蓄(xu)(xu)電(dian)(dian)池)自動供(gong)電(dian)(dian)。這(zhe)種形式的(de)應(ying)急(ji)燈每(mei)個燈具內(nei)部(bu)都有變(bian)(bian)壓、穩壓、充電(dian)(dian)、逆變(bian)(bian)、蓄(xu)(xu)電(dian)(dian)池等大量的(de)電(dian)(dian)子元(yuan)器件,應(ying)急(ji)燈在使(shi)用、檢(jian)修、故障(zhang)時電(dian)(dian)池均需充放電(dian)(dian)...進入應急燈知識講堂>>