一、EPS應急電源供電持續多長時間

EPS應急電源是一種用于應(ying)(ying)對突(tu)發停(ting)電(dian)(dian)情況(kuang)的重要(yao)設備，它在供電(dian)(dian)中斷時能(neng)(neng)夠提(ti)供繼續(xu)供電(dian)(dian)的功(gong)能(neng)(neng)，確(que)保(bao)關鍵(jian)設備的正常運行。EPS消防(fang)應(ying)(ying)急電(dian)(dian)源(yuan)可以為消防(fang)逃生(sheng)提(ti)供應(ying)(ying)急照(zhao)明。那么(me)EPS應(ying)(ying)急電(dian)(dian)源(yuan)供電(dian)(dian)持(chi)續(xu)多長時間？

EPS應(ying)(ying)(ying)急電(dian)源(yuan)持續(xu)供(gong)(gong)電(dian)時間需要視具體情(qing)況而定。根據(ju)《消防應(ying)(ying)(ying)急照(zhao)(zhao)明和疏散指示(shi)系統 GB17945-2010》規(gui)定，在市電(dian)中斷時，EPS應(ying)(ying)(ying)急電(dian)源(yuan)可(ke)以持續(xu)供(gong)(gong)電(dian)不(bu)能低于90分鐘，這(zhe)不(bu)僅滿足(zu)在發生(sheng)火(huo)災疏散時的應(ying)(ying)(ying)急照(zhao)(zhao)明，也要為(wei)消防人員的救援照(zhao)(zhao)明等(deng)需要。

一般情況下，普通照明燈的EPS應(ying)急電(dian)(dian)源(yuan)(yuan)的供(gong)電(dian)(dian)中(zhong)斷時(shi)間不(bu)能(neng)超(chao)過(guo)(guo)(guo)5秒。對于高危險(xian)工作區及關鍵工作區的應(ying)急照明，EPS應(ying)急電(dian)(dian)源(yuan)(yuan)的供(gong)電(dian)(dian)中(zhong)斷時(shi)間不(bu)能(neng)超(chao)過(guo)(guo)(guo)0.25秒。EPS應(ying)急電(dian)(dian)源(yuan)(yuan)的最長充電(dian)(dian)時(shi)間不(bu)能(neng)超(chao)過(guo)(guo)(guo)24小(xiao)時(shi)，且(qie)連(lian)續過(guo)(guo)(guo)充電(dian)(dian)電(dian)(dian)流(liu)不(bu)能(neng)超(chao)過(guo)(guo)(guo)0.05C5A。

根(gen)據《民用建筑電(dian)氣設計標準 GB51348-2019》規定(ding)，部(bu)分消防設備(bei)對EPS應急電(dian)源也有(you)著不同的供(gong)電(dian)時間要求：

火災自動報警(jing)裝置不能低于180（120）分(fen)鐘(zhong)。

消火(huo)栓、消防泵(beng)及水幕泵(beng)不能低(di)于(yu)180（120）分鐘。

自動(dong)噴水系統(tong)不能低于60分鐘。

水噴霧和泡(pao)沫滅火(huo)系統不能低于30分鐘。

滅火和(he)干粉(fen)滅火系統不能低于30分鐘。

防、排煙設備不能低于90、60、30分鐘。

火災應急廣播不能低于90、60、30分鐘。

消防(fang)電梯不能低(di)于180（120）分鐘。

由(you)此(ci)(ci)可見，EPS應(ying)急電(dian)(dian)源持續供電(dian)(dian)時(shi)間對不同的消(xiao)防設備也(ye)有著不一樣的要(yao)求，所以在采購EPS消(xiao)防應(ying)急電(dian)(dian)源時(shi)，一定(ding)要(yao)弄清楚其使用場所及相(xiang)關的要(yao)求規定(ding)。此(ci)(ci)外，定(ding)期檢(jian)查和(he)維(wei)護(hu)EPS應(ying)急電(dian)(dian)源也(ye)是(shi)確保其正常工(gong)作和(he)延長供電(dian)(dian)時(shi)間的重要(yao)措施。

二、EPS消防應急電源標準新要求

1、應急(ji)照(zhao)明集中EPS電源(yuan)應設模擬主電源(yuan)供電故障的(de)自復式試驗按(an)鈕（或幵關），不(bu)應設影響應急(ji)功(gong)能(neng)的(de)開關。

2、應(ying)急照明集(ji)中EPS電(dian)(dian)源應(ying)顯(xian)示主電(dian)(dian)電(dian)(dian)壓(ya)、電(dian)(dian)池電(dian)(dian)壓(ya)、輸(shu)出電(dian)(dian)壓(ya)和輸(shu)出電(dian)(dian)流(liu)。

3、應(ying)(ying)急照(zhao)明集中EPS應(ying)(ying)急電(dian)(dian)(dian)源應(ying)(ying)設主電(dian)(dian)(dian)、充電(dian)(dian)(dian)、故(gu)障和應(ying)(ying)急狀(zhuang)態指示燈，主電(dian)(dian)(dian)狀(zhuang)態用(yong)(yong)綠色(se)，故(gu)障狀(zhuang)態用(yong)(yong)黃色(se)，充電(dian)(dian)(dian)狀(zhuang)態和應(ying)(ying)急狀(zhuang)態用(yong)(yong)紅色(se)。

4、應(ying)急照明集(ji)中EPS電源每個輸(shu)出支(zhi)路均應(ying)單(dan)獨保(bao)護，且任一支(zhi)路故障(zhang)不應(ying)影響其他(ta)支(zhi)路的正常工作。

5、應(ying)(ying)(ying)急照明集中(zhong)EPS電(dian)源(yuan)主電(dian)和備(bei)電(dian)不應(ying)(ying)(ying)同時輸出(chu)，并能以手(shou)動、自動兩種方(fang)式(shi)轉(zhuan)人(ren)(ren)應(ying)(ying)(ying)急狀態，且應(ying)(ying)(ying)設只有人(ren)(ren)員可操作的強制應(ying)(ying)(ying)急啟(qi)動按鈕，該按鈕啟(qi)動后，應(ying)(ying)(ying)急照明集中(zhong)電(dian)源(yuan)不應(ying)(ying)(ying)受過放電(dian)保護的影響。

6、應(ying)急照明集中EPS電源應(ying)能(neng)在空載(zai)、滿(man)載(zai)10%和超載(zai)20%條件下(xia)正常工作，輸(shu)出特性(xing)應(ying)符(fu)合制造商的規定(ding)。

7、當(dang)串接(jie)電(dian)(dian)池(chi)組額定電(dian)(dian)壓(ya)(ya)(ya)(ya)大于等(deng)于12V時(shi)(shi)，應(ying)急照明集中(zhong)電(dian)(dian)源應(ying)對電(dian)(dian)池(chi)組分段(duan)(duan)保護(hu)，每段(duan)(duan)電(dian)(dian)池(chi)（組）額定電(dian)(dian)壓(ya)(ya)(ya)(ya)不應(ying)大于12V，且在電(dian)(dian)池(chi)（組）充滿電(dian)(dian)時(shi)(shi)，每段(duan)(duan)電(dian)(dian)池(chi)（組）電(dian)(dian)壓(ya)(ya)(ya)(ya)均(jun)不應(ying)小于額定電(dian)(dian)壓(ya)(ya)(ya)(ya)。當(dang)任(ren)一段(duan)(duan)電(dian)(dian)池(chi)電(dian)(dian)壓(ya)(ya)(ya)(ya)小于額定電(dian)(dian)壓(ya)(ya)(ya)(ya)時(shi)(shi)，應(ying)急照明集中(zhong)電(dian)(dian)源應(ying)發出故(gu)障聲、光(guang)信(xin)號并指(zhi)示相應(ying)的部(bu)位。

8、應急照明集中EPS電源在下述情況下應發出故(gu)障(zhang)(zhang)聲(sheng)(sheng)、光信號(hao)，并指(zhi)示故(gu)障(zhang)(zhang)的類型；故(gu)障(zhang)(zhang)聲(sheng)(sheng)信號(hao)應能手動(dong)(dong)消(xiao)除，當有新的故(gu)障(zhang)(zhang)信號(hao)時(shi)，故(gu)障(zhang)(zhang)聲(sheng)(sheng)信號(hao)應再啟(qi)動(dong)(dong)；故(gu)障(zhang)(zhang)光信號(hao)在故(gu)障(zhang)(zhang)排除前應保持。故(gu)障(zhang)(zhang)條件如下所(suo)述：

a）充(chong)電(dian)(dian)器與電(dian)(dian)池之間連接線開路。

b）應急輸出回(hui)路開(kai)路。

c）在應急狀態下(xia)，電池電壓低于過放保護電壓值。