【正文】 二線制和三線制型應(yīng)急燈具可統(tǒng) 一接在專用電源上。 第 條 自帶電源型消防應(yīng)急照明燈具所用電池 必須的全封閉免維護的充電電池，電池的使用壽命不小于 4 年，或全充、放電循環(huán)次數(shù)不小于 400 次。 第 條 疏散通道中， “ 安全出口 ” 標(biāo)志宜設(shè)置在通道兩側(cè)部及拐彎處的墻面上，標(biāo)志牌的上邊緣距地面不應(yīng)大于 1m，標(biāo)志的間距不應(yīng)大于 20m 袋形走道的盡頭離標(biāo)志的距離不應(yīng)大于 10m. 哈爾濱應(yīng)用職業(yè)技術(shù)學(xué)院畢業(yè)設(shè)計（論文） 14 第 條 方向輔助標(biāo)志應(yīng)設(shè)置在公眾選擇方向的通道處，并按通向目標(biāo)的最短路線設(shè)置。同時可進行必要的操作，以有效地制止災(zāi)害或故障蔓延的必要設(shè)施。 哈爾濱應(yīng)用職業(yè)技術(shù)學(xué)院畢業(yè)設(shè)計（論文） 10 總 結(jié) 建筑物發(fā)生火災(zāi)，在正常電源被切斷時如果沒有事故照明和疏散指示標(biāo)志等應(yīng)急照明燈具，受 困人員往往因找不到安全出口而發(fā)生擁擠 、碰撞、摔倒，尤其是高層建筑、影劇院、禮堂、歌舞廳等公眾聚集場所發(fā)生火災(zāi)后，由于人員擁擠，對場所情況不熟悉，更是極易造成較大的傷亡事故。作為消防應(yīng)急電源系統(tǒng)，當(dāng)建筑物發(fā)生火災(zāi)時，為疏散照明和其它重要的一級供電負(fù)荷提供集中供電。 555 時基集成電路是數(shù)字集成電路，是由 21 個晶體三極管、 4 個晶體二極管和 16個電阻組成的定時器，有分壓器、比較器、觸發(fā)器和放電器等功能的電路。開關(guān)S用 22 的小型撥動開關(guān) 。消防應(yīng)急燈電池主要用來為消防應(yīng)急照明提供電源，是消防應(yīng)急照明燈的重要裝置，與消防應(yīng)急照明燈一起用于是在 發(fā)生火災(zāi)時正常照明系統(tǒng)不能提供照明時為人員疏散、特殊崗位堅持工作以及滅火救援行動提供應(yīng)急照明。 關(guān)鍵詞： 消防應(yīng)急燈、原理、電路、故障分析 哈爾濱應(yīng)用職業(yè)技術(shù)學(xué)院畢業(yè)設(shè)計（論文） II Abstract Fire emergency lights, emergency lighting for fire, fire emergency is the most mon type of lighting tools, emergency long time, high brightness with automatic emergency poweroff function. Emergency evacuation lights has small power consumption, high brightness, long service life, the edge of the design of the power switch and lights that were suitable for factories, hotels, schools, units and other public places to prepare for power outages for emergency lighting purposes. Fire evacuation indicator is the choice of industrial plastic and highbrightness light bulb made of material does not age, fast heat dissipation, impact resistance and other characteristics. Emergency evacuation lights with a wallmounted, portable, hanging installation. Users install the evacuation light, you can choose according to the actual situation of different installation methods. Emergency lighting batteries are used in fire emergency light battery, when the AC input to charge the battery using the charging circuit, the normal AC power is disconnected electricity off our normal circumstances, fire emergency lighting lamps battery to power the light bulb. Now the state fire emergency light power supply emergency lighting batteries required time shall not be less than 90 minutes. Fire emergency light batteries are mainly used to provide power to fire emergency lighting is a major fire emergency lighting installations, emergency lighting and fire with fire when used in normal lighting system can not provide illumination for the evacuation, the special status continued to work fire fighting and rescue operations and emergency lighting. Key words: Fire emergency lights, principles, circuits, fault analysis 哈爾濱應(yīng)用職業(yè)技術(shù)學(xué)院畢業(yè)設(shè)計（論文） 目 錄 摘 要 .........................