該電纜適用于地鐵．隧道．車站等相對密閉人員集中．有很高的阻燃要求．且特別要求在燃燒時不生產(chǎn)濃煙，有毒害作用的鹵酸氣體及嚴禁燃燒產(chǎn)生“二次災害”的苛刻環(huán)境下使用。尤其適用于隧道沿線及配電柜與地鐵之間的敷設。
 

一、執(zhí)行標準standard：
企業(yè)標準Enterprise’s standard
二．適用范圍Applications：
    該電纜適用于地鐵．隧道．車站等相對密閉人員集中．有很高的阻燃要求．且特別要求在燃燒時不生產(chǎn)濃煙，有毒害作用的鹵酸氣體及嚴禁燃燒產(chǎn)生“二次災害”的苛刻環(huán)境下使用。尤其適用于隧道沿線及配電柜與地鐵之間的敷設。
  Suitable for subway．tunnel，station etc with crowded people wherever requires higher flame-retardant，less amount of smoke and poisonous halogen gas when burning and not cause“the second disaster”．Especially suitable for installation and laid along tunnel line．power cabinet and rai1way．
三、使用特性Properties：
    1．產(chǎn)品型號：WZR-DZY(具體規(guī)格參見附表)
  Model：WZR-DZY(detail is see the attached table)
  注：①WZR(A、B)-DZY WZR(A、B)-DZY均與上型號等效。
      ②阻燃級別：WZRA--為A類低煙無鹵阻燃
                  WZRB--為B類低煙無鹵阻燃
                  WZR---為c類低煙無鹵阻燃
  2．額定電壓750V，1500V
  Rated voltage：750V．1500V
  3．標稱截面O.5-400mm2
  Nominal cross section area：O.5-400mm2
  4．導體長期工作溫度70℃，短路過載溫度可達到130℃(5s)
  Permissible long-term working temperature is 70℃．Max．working temperature of the conductors in short- circuit is 130℃．(5S)
  5．電纜z.ui小允許彎曲半徑不超過電纜直徑的15倍。
    Allowed Min．bending radius are not more than 1 5 times 0f cable O．D．
  6．電絕緣性能，物理機械性能優(yōu)異
    Possessing good electrical insulation performance，physical mechanical properties．
7．電纜阻燃性能達到GB／T18380．3-2001電纜成束燃燒試驗A、B、C類(IEC332-3)的要求
Flame-residence comforts to the requirement of GB／T1 8380．3-2001(IEC332-3)
8、低煙特性：滿足GB／T17650-1998，GB／T17651—1998的要求 
Low-smoke property comforts to GB／T17650-1 998．GB／T17651—1 9989．
9、無鹵特性：(1)導電率≤10  μs／mm
               (2)PH值≥4．3
 Non-halogen property：(1)Conductivity≤10 μs／ram
                       (2)PH≥4．3
10、煙氣毒性符合GAl32準安全級的要求。
  Smoke poisonous conform to GAl32．
空氣敷設長期連續(xù)負荷載流量單位：A
Continue loading current of cable laid in air

注：環(huán)境溫度為40：C Note：environment temperature is 40℃
地鐵隧道專用電纜結構參數(shù)表Cable construction

編制說明Directions：
    1．低煙無鹵阻燃聚烯烴絕緣地鐵隧道專用電纜連續(xù)負載電流是依據(jù)IEC-287電纜載流量計算標準進行計算的，并通過修正確定。
    Continuous loading current of cable is calculated per IEC-287
    2．此地鐵隧道專用電纜的長期工作溫度不超過70℃。
    Long-term working temperature is not more than 70℃．
    3．布線方式分為接觸與非接觸兩種，其中非接觸指電纜間的相互距離大于二倍的電纜外徑．接觸即指電纜相互靠在一起或相互間距小于二倍的電纜外徑。
  Laid method：contact and non contact．Non contact laid means the distance between the laying cable is more than 2 times of cable O．D．Contact laid means the distance between the laying cable is not more than 2 times of cable O．D．
    4．周圍環(huán)境溫度以40℃作為基準溫度。
    Environment temperature is supposed 40℃ as basic temperature
環(huán)境溫度變化修正系數(shù)表
The revised coefficient of the environmental temperature change

電纜敷設于塑料槽中載流量修正系數(shù)表 
The revised coefficient of the cable loading current lay in plastic flume

注：K系指在塑料槽中有負荷電纜根數(shù)與總的電纜根數(shù)之比(負荷電纜我指通是流發(fā)熱電纜，信號線除外)。
                                                    Note．  k=   Loading current cables

                                                                      Total number of the cables
(Loading current cables means cables that generating heat when working excet for signal line)
電纜穿管敷時載流量修正系數(shù)表
 The revised coefficient of the cable loading current lay in tube

注：
1．穿管根數(shù)指有負荷發(fā)熱的電纜根數(shù)。
2．穿管線的體積不超過管體積的40％。
3．當管并列敷設時乘0．95修正系數(shù)。
Note：
1) The number of the cable in tube means the number of the cables which generates heat while loading.
2)The cable’s volume is not more than 40％ of the rube’s volume．
3)When cable laid stand by stand，multiply the revised coefficient with 0.95

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