【正文】 bbbbbbbbbbbbbbbbbbbagraphFoLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointse11111111111111111111111111111111lectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraphFormatLineSpaci2222222222222222222222ngLinesToPoints2SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraphFccccccccccccccccccccccccccccccccccccccccccccccccccccccccormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraSelec 13 災(zāi)報警記憶功能，時鐘單元功能，火災(zāi)報警優(yōu)先報故障功能，聲報警音響消音及再次聲響報警功能。報警按鈕安裝采用 進線管 明裝和 進線管 暗裝兩種方式，安裝示意圖如圖所示：（ 25） SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesTSelectionParbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbagraphFoLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointse11111111111111111111111111111111lectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraphFormatLineSpaci2222222222222222222222ngLinesToPoints2SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraphFccccccccccccccccccccccccccccccccccccccccccccccccccccccccormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraSelec SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormatLineSpacingLinesToPointsSe。它以聲、光音響方式向報警區(qū)域發(fā)出火災(zāi)警報信號，以警示人們采取安全疏散、滅火救災(zāi)措施。 探測器底座布線管預(yù)埋盒56 圖 22 探測器安裝示意圖 SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesTSelectionParbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbagraphFoLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointse11111111111111111111111111111111lectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraphFormatLineSpaci2222222222222222222222ngLinesToPoints2SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraphFccccccccccccccccccccccccccccccccccccccccccccccccccccccccormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraSelec SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesTSelectionParbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbagraphFoLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointse11111111111111111111111111111111lectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraphFormatLineSpaci2222222222222222222222ngLinesToPoints2SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraphFccccccccccccccccccccccccccccccccccccccccccccccccccccccccormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraSelec 12 12安裝孔430 Z D2 圖 23 探測器通用底座外形示意圖 第二節(jié) 火災(zāi) 報警 裝置 在火災(zāi)自動報警系統(tǒng)中，用以接收、顯示和傳遞火災(zāi)報警信號，并能發(fā)出控制信號和具有其它輔助功能 的控制指示設(shè)備稱為火災(zāi)報警裝置。紅外光束感煙探測器又分為對射型和反射型兩種。離子感煙式探測器是點型探測器，它是在電離室內(nèi)含有少量放射性物質(zhì)（镅 241），可使電離室內(nèi)空氣成為導(dǎo)體，允許一定電流在兩個電極之間的空氣中通過，射線使局部空氣成電離狀態(tài)，經(jīng)電壓作用形成離子流，這就給電離室一個有效的導(dǎo)電性。定溫、差定溫探頭各級靈敏度探頭的動作溫度分別不大于 1 級 62℃ 、 2 級 70℃ 、3 級 78℃ 。它是將溫度的變化轉(zhuǎn)換為電信號以達(dá)到報警目的。一般火災(zāi)自動報警系統(tǒng)和SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesTSelectionParbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbagraphFoLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointse11111111111111111111111111111111lectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraphFormatLineSpaci2222222222222222222222ngLinesToPoints2SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraphFccccccccccccccccccccccccccccccccccccccccccccccccccccccccormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraSelec SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesTSelectionParbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbagraphFoLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointse11111111111111111111111111111111lectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraphFormatLineSpaci2222222222222222222222ngLinesToPoints2SelectionParagraphFormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPointselectionParagraphFccccccccccccccccccccccccccccccccccccccccccccccccccccccccormatLineSpacingLinesToPointsSelectionParagraphFormatLineSpacingLinesToPoctionParagraSelec 8 自動噴水滅火系統(tǒng)、室內(nèi)消火栓系統(tǒng)、防排煙系統(tǒng)、通風(fēng)系統(tǒng)、空調(diào)系統(tǒng)、防火門、防火卷簾、擋煙垂壁等相關(guān)設(shè)備聯(lián)動，自動或手動發(fā)出指令、啟動相應(yīng)的裝置。所以，對于火災(zāi)自動報警系統(tǒng)的基本認(rèn)識和了解是必要的，是熟練掌握業(yè)務(wù)的基礎(chǔ)。另外，在做預(yù)算的時候也有一定的幫助。感煙和感光等火災(zāi)探測器變成電信號，傳輸?shù)交馂?zāi)報警控制器，并同時顯示出火災(zāi)發(fā)生的部位，記錄火災(zāi)發(fā)生的時間。 感溫式火災(zāi)探測器是對警戒范圍中某一點或某一線路周圍溫度變化時響應(yīng)的火災(zāi)探測器。例如：易熔合金或熱敏絕緣材料、雙金屬片、熱電偶、熱敏電阻、半導(dǎo)體材料等。感煙式火災(zāi)探測器有離子感煙式、光電感煙式、激光感煙式等幾種型式。它同前面兩種點型感煙探測器的主要區(qū)別在于線型感煙探測器將光束發(fā)射器和光電接受器分為兩個獨立的部分，使用時分裝相對的兩處，中間用光束連接起來。 ：探測器二總線宜選用截面積≥ RVS 雙絞線，穿金屬管或阻燃管敷設(shè)。 第三節(jié) 火災(zāi)警報裝置 在火災(zāi)自動報警系統(tǒng)中，用以發(fā)出區(qū)別于環(huán)境聲、光的火災(zāi)警報信號的裝置稱為火災(zāi)警報裝置