應(ying)急燈原理是什么? 消防應(ying)急照明燈布(bu)燈位置

應急燈的作用

消防應急燈作為在火災現場(chang)及(ji)不可抗拒災難事故發生(sheng)時，為被困在事故現場(chang)的人員(yuan)尋(xun)找（發現）緊急(ji)逃生(sheng)安(an)全出(chu)口通(tong)道時提供應(ying)急(ji)照明和方(fang)向指示的必(bi)備燈具。

當發生(sheng)(sheng)突發性的(de)停(ting)電、火災(zai)事故(gu)的(de)發生(sheng)(sheng)或地(di)震等不可抗拒(ju)的(de)災(zai)難(nan)事故(gu)發生(sheng)(sheng)時，用于事故(gu)現場(chang)人員的(de)緊(jin)急疏散，迅速逃離現場(chang)，對被困現場(chang)人員的(de)營救(jiu)，提供指示(shi)照(zhao)明；并(bing)且適用于一般家庭的(de)使用。

應急燈原理

國內(nei)使用的應(ying)急照明系統以自(zi)帶(dai)電(dian)(dian)源(yuan)獨立控制(zhi)型為主(zhu)，正常電(dian)(dian)源(yuan)接自(zi)普通照明供電(dian)(dian)回路中，平(ping)時(shi)對應(ying)急燈(deng)蓄電(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)，當正常電(dian)(dian)源(yuan)切(qie)斷時(shi)，備用電(dian)(dian)源(yuan)（蓄電(dian)(dian)池(chi)）自(zi)動供電(dian)(dian)。這種形式的應(ying)急燈(deng)每個燈(deng)具內(nei)部都有變壓、穩(wen)壓、充(chong)(chong)電(dian)(dian)、逆(ni)變、蓄電(dian)(dian)池(chi)等大量的電(dian)(dian)子元器件，應(ying)急燈(deng)在使用、檢修、故障時(shi)電(dian)(dian)池(chi)均需充(chong)(chong)放電(dian)(dian)。

另一(yi)種是集(ji)中電源集(ji)中控(kong)制型(xing)，應急燈具(ju)內無獨立電源，正常照(zhao)明電源故障時，由(you)集(ji)中供(gong)(gong)電系(xi)統(tong)供(gong)(gong)電。在這(zhe)種形式的(de)應急照(zhao)明系(xi)統(tong)中，所有燈具(ju)內部復雜的(de)電子電路被省掉了，應急照(zhao)明燈具(ju)與普通(tong)的(de)燈具(ju)無異(yi)，集(ji)中供(gong)(gong)電系(xi)統(tong)設(she)置在專用(yong)的(de)房間內。

應急燈安裝高度

常見(jian)的(de)消防(fang)應(ying)急(ji)照(zhao)(zhao)明燈，一般安裝(zhuang)在(zai)2.2米或(huo)以上的(de)高度(du)，多(duo)以懸掛(gua)式或(huo)壁掛(gua)式掛(gua)置于安全(quan)出口（消防(fang)安全(quan)通(tong)道）的(de)上方或(huo)門(men)框的(de)上方。在(zai)火災發生(sheng)或(huo)停電(dian)之(zhi)時，自動點亮，作(zuo)(zuo)為應(ying)急(ji)照(zhao)(zhao)明燈具，提供應(ying)急(ji)照(zhao)(zhao)明條件。在(zai)火災發生(sheng)的(de)初期(qi)發揮(hui)的(de)作(zuo)(zuo)用大一些。

消防應急照明燈布燈位置

根(gen)據<建筑(zhu)(zhu)設(she)計防(fang)火規范>及<高層民(min)用建筑(zhu)(zhu)設(she)計防(fang)火規范>規定，應(ying)在建筑(zhu)(zhu)物內的下(xia)列部位(wei)設(she)置消防(fang)應(ying)急照(zhao)明燈(deng)：

1、封閉樓梯間、防煙樓梯間及其(qi)前(qian)室(shi)，消(xiao)防電梯及其(qi)前(qian)室(shi)；

2、配電(dian)(dian)(dian)室、消防控制(zhi)室、自(zi)動發(fa)電(dian)(dian)(dian)機房(fang)、消防水泵房(fang)、防煙(yan)排煙(yan)機房(fang)、供消防用電(dian)(dian)(dian)的蓄電(dian)(dian)(dian)池室、電(dian)(dian)(dian)話總(zong)機房(fang)以及在(zai)發(fa)生火災時仍(reng)需(xu)堅(jian)持(chi)工(gong)作的其它房(fang)間；

3、觀眾廳每層超過(guo)(guo)1500m2的展覽廳、營(ying)業廳、建筑面積超過(guo)(guo)200m2 的演播室、人員密集(ji)且建筑面積超過(guo)(guo)300m2的地下室；

4、公共建筑內的疏(shu)散走(zou)道和(he)長度(du)超過20m的內走(zou)道。

消防應急標志燈布燈標志

疏(shu)(shu)散(san)指(zhi)示(shi)(shi)標(biao)(biao)志(zhi)(zhi)可分為出(chu)(chu)口(kou)標(biao)(biao)志(zhi)(zhi)和(he)疏(shu)(shu)散(san)通(tong)(tong)(tong)(tong)(tong)(tong)道(dao)指(zhi)示(shi)(shi)標(biao)(biao)志(zhi)(zhi)。出(chu)(chu)口(kou)標(biao)(biao)志(zhi)(zhi)的安裝部位通(tong)(tong)(tong)(tong)(tong)(tong)常是(shi)在建(jian)筑物通(tong)(tong)(tong)(tong)(tong)(tong)向(xiang)室外的正常出(chu)(chu)口(kou)和(he)應(ying)急出(chu)(chu)口(kou)，多層(ceng)和(he)高層(ceng)建(jian)筑各樓層(ceng)通(tong)(tong)(tong)(tong)(tong)(tong)向(xiang)樓梯間和(he)消(xiao)防電梯前(qian)室的門口(kou)，大(da)面積的廳、堂、場(chang)、館(guan)通(tong)(tong)(tong)(tong)(tong)(tong)向(xiang)疏(shu)(shu)散(san)通(tong)(tong)(tong)(tong)(tong)(tong)道(dao)和(he)通(tong)(tong)(tong)(tong)(tong)(tong)向(xiang)前(qian)廳、側廳、樓梯間的出(chu)(chu)口(kou)。出(chu)(chu)口(kou)標(biao)(biao)志(zhi)(zhi)燈一般裝于(yu)出(chu)(chu)口(kou)門的上(shang)方，門太高時(shi)，可裝于(yu)門的側口(kou)。為防止火災時(shi)煙霧(wu)影(ying)響視覺，其高度以(yi)2-2.5m為宜(yi)。正面應(ying)盡(jin)量(liang)使標(biao)(biao)志(zhi)(zhi)面垂直于(yu)疏(shu)(shu)散(san)通(tong)(tong)(tong)(tong)(tong)(tong)道(dao)截(jie)面。疏(shu)(shu)散(san)通(tong)(tong)(tong)(tong)(tong)(tong)道(dao)指(zhi)示(shi)(shi)標(biao)(biao)志(zhi)(zhi)的安裝部位通(tong)(tong)(tong)(tong)(tong)(tong)常是(shi)公共建(jian)筑內的疏(shu)(shu)散(san)通(tong)(tong)(tong)(tong)(tong)(tong)道(dao)，為使人(ren)員疏(shu)(shu)散(san)時(shi)，無(wu)論在從何(he)處都能找(zhao)到出(chu)(chu)口(kou)標(biao)(biao)志(zhi)(zhi)，走(zou)道(dao)上(shang)的指(zhi)示(shi)(shi)標(biao)(biao)志(zhi)(zhi)間距不(bu)宜(yi)大(da)于(yu)20m。