低煙無(wú)(低)鹵阻燃、耐火電線電纜  Low-smoke no(low)-halogen flame retardatory  fire resistance wire & cable  1 產(chǎn)品使用場(chǎng)所的分級(jí)及選用  Grade and choose for the using location  1.1 低煙無(wú)(低)鹵使用場(chǎng)所應(yīng)根據(jù)建筑物的使用特性、火災(zāi)危險(xiǎn)性、疏散和撲救難度等分為特級(jí)、一級(jí)、二級(jí)、三級(jí)，并符合表1-1規(guī)定。  Low-smoke free/low-halogen types divides into four kinds, special class, first class,  second class, third class according to the using property, fire damage and evacuation & extinguishment difficulty.

Meanwhile, it also complies with the requirement of Table 1-1. 表1-1  Table 1-1  等級(jí) Grade 使用場(chǎng)所 Using place  特級(jí) Special class  建筑高度超過(guò)100m的高層民用建筑（超高層住宅除外）  The high-rise residential building with structural height exceeded 100m（except super high-rise uptown）  建筑高度超過(guò)100m的高層住宅  The high-rise residence with structural height under 100m  一級(jí) First class  建筑高度不超過(guò)100m的高層民用建筑 The high-rise civil building with height  under 100m  一類(lèi)建筑（一類(lèi)建筑的住宅除外） First type building（except the residential zone）  建筑高度不超過(guò)24m的民用建筑和建筑高度超過(guò)24m的單層公共建筑 The civil building with height under 24m and single-floor public building with height  under 24m  1.200床及以上的病房樓，每層建筑面積1000m2及以上的門(mén)診樓；  sickroom building with 200-bed or above, clinic building with each structural  area floor of 1000m2 or above;  2.每層建筑面積3000m2以上的百貨樓、展覽樓、高級(jí)旅館、財(cái)貿(mào)金融樓、電信樓、高級(jí)辦公樓；  shopping building, exhibition building, senior ho, financial building, communication building,  senior office building with each structural area floor of 1000m2 or above; 3.藏書(shū)超過(guò)100萬(wàn)冊(cè)的圖書(shū)館、書(shū)庫(kù)； library with more than 1 million books; 4.超過(guò)3000座位的體育館；  gymnasium with more than 3000 seats; 5.重要的科研樓、資料檔案樓；  important research building or archives building;  6.市級(jí)的郵政樓、廣播電視樓、電力調(diào)度樓、防災(zāi)指揮調(diào)度樓、車(chē)站旅客候車(chē)室、民用機(jī)場(chǎng)候機(jī)室；  civic post building, broadcast & TV building, electrical power control center, commanding & controlling building for guard against blast, station waiting room, and civil airfield waiting room; 7.重點(diǎn)文物保護(hù)場(chǎng)所； emphases cultural relic;  8.大型以下的影劇院、會(huì)堂、禮堂；  large-sized cinema, showplace, auditorium and hall; 9.建筑面積在2000m2及以上公共娛樂(lè)場(chǎng)所。  public entertainment place with structural area more than 200m2. 地下民用建筑 Underground civil  building  1.地下鐵道及地下鐵道車(chē)站； subway and its station; 2.地下影劇院、禮堂；  underground cinema and hall;  3.使用面積超過(guò)1000m2的地下商場(chǎng)、醫(yī)院、旅館、展覽廳及其他商業(yè)后公共活動(dòng)場(chǎng)所； underground shop, hospital, ho, exhibition hall and other commercial or public place with using area more than 1000m2;  4.重要的實(shí)驗(yàn)室和圖書(shū)、資料、檔案庫(kù)。 important lab, library, and muniment room  續(xù)表1-1  Extend table 1-1  等級(jí) Grade  使用場(chǎng)所 Using place  二級(jí) Second class  建筑高度不超過(guò)100m的高層民用建筑 The civil building with structural area not more  than 100m  一類(lèi)建筑的住宅  residence of the first type building 二類(lèi)建筑（二類(lèi)建筑的住宅除外） second type building (except the residence)  建筑高度不超過(guò)24m的 民用建筑 The civil building with structural area not more  than 24m  1.每層建筑面積超過(guò)2000m2但不超過(guò)3000m2的商業(yè)樓、財(cái)貿(mào)金融樓、電信樓、展覽樓、旅館、辦公室、車(chē)站、海河客運(yùn)站、航空港等公共建筑及其他商業(yè)或公共活動(dòng)場(chǎng)所；  business building, fincial building, communication building, exhibition building, ho, office building, station, ocean/rive shipping station, airport and other commercial or public place with  each floor structural area from 2000m2 to3000m2;  2.區(qū)縣級(jí)的郵政樓、廣播電視樓、電力調(diào)度樓、防災(zāi)指揮調(diào)度樓；  post building, broadcast & TV building, electrical power control center, commanding & controlling building for guard against blast in district or county; 3.中型以下的影劇院；  under medium-sized cinema and showplace; 4.圖書(shū)館、書(shū)庫(kù)、檔案樓； lab, library, and muniment room;  5.建筑面積在200m2以下的公共娛樂(lè)場(chǎng)所。  public entertainment place with structural area under 200m2 地下民用建筑 Underground civil  building  1.長(zhǎng)度超過(guò)500m的城市隧道；  tunnel with length more than 500m;  2.使用面積不超過(guò)1000m2的地下商場(chǎng)、醫(yī)院、旅館、展覽廳及其他商業(yè)或公共活動(dòng)場(chǎng)所。 underground shop, hospital, ho, exhibition hall and other commercial or public place with using area not more than 2000m2.  三級(jí) Third class  不屬于特級(jí)、一級(jí)、二級(jí)的其他民用建筑  The other civil building that not belong to special, first and second class  1.2 低煙無(wú)(低)鹵電線電纜成束敷設(shè)時(shí)，應(yīng)采用阻燃電線電纜，阻燃級(jí)別選擇應(yīng)符合表 1-2、1-3，在外部火勢(shì)作用下，需保持線路完整性、維持通電的場(chǎng)所，其線路應(yīng)采用耐火電線電纜。  When they are laying in colligation, the low-smoke free/low-halogen wires and cables  should be flame-retardancy types whose grades comply with Table 1-2 and Table 1-3. If the location needs integrated lines and constant electricity under the outside fire, they should be fire resistance types.  電線的阻燃級(jí)別選擇  Table 1-2 the grade choice to the flame-retardancy property of electrical wires  試用場(chǎng)所 Applicable place  電線截面 Section area 阻燃級(jí)別 Flame-retardancy grade  特級(jí) Special class  50mm2及以上 50mm2 and above B級(jí) B class 35mm2及以下 35mm2 and below C級(jí) C class 一級(jí) First class 50mm2及以上  50mm2 and above  C級(jí) C class 所有截面 All area D級(jí) D class 二級(jí)、三級(jí) Second class、Third class  所有截面 All area  D級(jí) D class  表1-3 電纜的阻燃級(jí)別選擇  Table 1-3 the grade choice to the flame-retardancy property of cables  適用場(chǎng)所 Applicable place  阻燃級(jí)別 Flame-retardancy grade  特級(jí) Special class  A級(jí) A class 一級(jí) First class B級(jí) B class 二級(jí)、三級(jí) Second class、Third class  C級(jí) C class  2. 2 產(chǎn)品技術(shù)性能  Technical property  2.1 電線電纜導(dǎo)體正常運(yùn)行時(shí)的zui高溫度及短路時(shí)（zui長(zhǎng)持續(xù)時(shí)間不超過(guò)5s）zui高溫度：  The maximum temperature of the normal operating cable conductor or short circuit (should not persist for 5 seconds):  交聯(lián)聚乙烯絕緣為90℃，熱塑性低煙無(wú)鹵聚烯烴絕緣為80℃，短路時(shí)zui高溫度不 超過(guò)250℃；  90℃ for XLPE insulated type, 80℃ for thermoplastic low-smoke low-halogen polyolefin insulated type, and not more than 250℃ as short circuit; 輻照交聯(lián)型聚乙烯絕緣為105℃，短路時(shí)zui高溫度不超過(guò)250℃。  105℃ for irradiated cross-linked PE insulated type, and not more than 250℃ as short  circuit.  2 低煙無(wú)(低)鹵電纜的安裝條件及允許連續(xù)載流量均與相應(yīng)非低煙無(wú)(低)鹵型號(hào)規(guī)格電纜電線相同。  The installation conditions and allowable constant carrying capacity of the low-smoke free/low-halogen cables are as same as the corresponding non-free/low-halogen ones.   2.3 電纜電線在燃燒時(shí)具有低煙、無(wú)鹵、阻燃和耐火性能，具體指標(biāo)如表1-4。  The cables have the properties of low smoke, free halogen, flame retardancy and fire resistance. The detail sees Table 1-4.  表1-4  Table 1-4  序號(hào) Sequence number  試驗(yàn)項(xiàng)目 Testing item  標(biāo)準(zhǔn)要求 Standard requirement   1  電線電纜單根垂直燃燒試驗(yàn)  Single vertical combustion testing for wires and cables  ——上支架下緣與炭化部分起點(diǎn)間距離  The distance from the skirt lf upper bracket to charcoal part  ——燃燒向下延伸至上支架下緣距離  The distance from combustion prolongation to the skirt of upper bracket  ≥50mm ≤540mm 2  電纜成束燃燒試驗(yàn)——炭化部分所達(dá)高度  Cable colligated combustion testing——the height of charcoal part  ≤2.5m 3  耐火試驗(yàn)  Fire resistance testing  燃燒試驗(yàn)期間，施加額定電 壓，2A熔絲不熔斷 As testing, bear rated voltage and the 2A fuse will not be  melted  4 PH值  PH value ≥4.3 5 電導(dǎo)率  Conductance  ≤10μs/mm 6  電纜煙密度試驗(yàn)——zui小透光率  Smoke density testing——minimum light-pass rate  ≥60%

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