【正文】
for Tele World Wide 全球電信領(lǐng)域空氣采樣早期探測規(guī)范 ASD Standards for Tele WW ? Camp。W Standard ? ATamp。T Standard ? Telstra Standard ? Optus Standard ? BFPSA ASD Code ? VFS ASD Code Standards World Wide 國際通行標(biāo)準(zhǔn) ? USA NFPA 76 “Standard for the Protection of Telemunications Facilities” 美國 NFPA76 “通訊設(shè)施防火標(biāo)準(zhǔn)” – “Every type of sensor and port installed in a space shall be limited to a maximum coverage area of 20 “各種類型的探測器和端點(diǎn)在場所內(nèi)安裝時(shí)都必須限定在每個(gè)點(diǎn)的最大保護(hù)面積為 20平方米的范圍內(nèi)” ? USA NFPA 72 “National Fire Code” 美國 NFPA72 “國家火災(zāi)規(guī)范” – area coverage for spot type detectors to be reduced within high airflow environments to as low as m2 per detector for rooms that have 60 air changes per hour. 在高氣流環(huán)境下,當(dāng)房間內(nèi)的換氣率達(dá)到每小時(shí) 60次時(shí),點(diǎn)式探測器每個(gè)探頭的保護(hù)面積要降至 ? British Standard BS6266 英國 BS6266標(biāo)準(zhǔn) – EDP equipment room (ceiling height above 3 metres), require a maximum spacing of 1525 square metres (150 – 250 square feet) 電子數(shù)據(jù)處理設(shè)備間(天花板的高度大于 3米)要求探測器的最大間距為15至 25平方米( 150至 250平方英尺) Industry Standards 行業(yè)標(biāo)準(zhǔn) ? Factory Mutual Property Loss Prevention Data Sheet (548) for Automatic Fire Detectors 廠商通用標(biāo)準(zhǔn) 預(yù)防財(cái)產(chǎn)損失一覽表之自動(dòng)火災(zāi)探測器( 548) – A maximum coverage of 200sq. ft. (20 m2) per detector may be necessary where room air is changing at a rate of 20 air changes per hour or 100ft/min (). “當(dāng)房間內(nèi)的換氣率在每小時(shí) 20次或 100平方英尺 /分( /秒)時(shí),每個(gè)探頭的最大保護(hù)面積為 200平方英尺( 20平方米) ? 美國 ATamp。T 通訊公司 – 20 Maximum Spacing for Priority1 amp。 Service Class 1 areas including (Telemunications Equipment Areas, DC power rooms, Data Center/Computer Rooms amp。 Cable Vaults) 對(duì)于一級(jí)的場所,每個(gè)探頭的最大保護(hù)面積為 20平方 米 (包括通訊設(shè)備間,動(dòng)力設(shè)備間,數(shù)據(jù)中心 /計(jì)算機(jī)房以及電纜間) ? 美國 Sprint Corporation 速跑通訊公司 – “There shall be one (1) or more sampling points for every two hundred (200) square feet of floor area. The maximum floor area that each sampling port may cover is two hundred (200) square feet. “房間內(nèi)每 20平方英 米 的面積需要一個(gè)或多個(gè)采樣點(diǎn),每個(gè)采樣點(diǎn)的最大室內(nèi)保護(hù)面積為 20平方 米 。 ” – “Where ceiling and low elevation sampling points are required, sampling points shall alternate between ceiling and low elevations. There shall be one ceiling and one low elevation point in every 40 square meter of floor area.” “在需要天花板和低處的采樣點(diǎn)時(shí),采樣點(diǎn)必須在天花板和低處之間交替安裝。在房間內(nèi)每 40平方 米就必須在天花板和低處各安裝一個(gè)采樣點(diǎn)。 ” ? 澳大利亞 Telstra通信公司 – VESDA specified for all Telephone Exchanges VESDA已被指定用于所有電話交換機(jī)房 例如使用 20平米 x Using 20m2 . x 如果在高氣流環(huán)境里安裝探測器,為了確保靈敏度,應(yīng)該減少間距,使得探頭的保護(hù)面積在 1525m2, VESDA很容易做到。 If covering a puter facility with high airflow39。s detector spacing should be reduced, this is to enable higher sensitivity levels. Detector spacing should be 1525m2 VESDA is easily configured to meet these requirements. 高氣流環(huán)境下的常規(guī)探測器布置方式 Siting of Conventional Detectors for high airflow environments Sampling pipes 采樣管 Sampling points 采樣孔 ASD Detector 探測器 Area Coverage 每個(gè)采樣孔的平均保護(hù)面積 20M2 高氣流環(huán)境下的采樣孔布置方式 Siting of Sampling Points for high airflow environments NFPA 72 NFPA 72 提供的關(guān)于氣流變化率與探頭保護(hù)面積對(duì)