DZYJ-WZR(A、B)-125地铁隧道专用电缆
 一、执行标准standard：
    企业标准Enterprise’s standard
二、适用范围Applications：
    DZYJ-WZR(A、B)-125型电缆适于地铁隧道．车站等相对密闭、人员集中、以及阻燃．且燃烧时不生产浓烟、无毒．要求苛刻的环境下使用，特别适合于隧道配电柜与地铁间的引线。
    Suitable for subway．tunnel．station etc with crowded people wherever requires higher flame-residence less amount of smoke and poisonous when burning halogen gas．Especially suitable for installation and laid wire between power cabinet and railway in tunnel．
三、使用特性Properties：
    1．产品型号：DZYJ-WZR(A、B)-125(具体规格参见附表)
    Model：DZYJ-WZR-125(details see the attached table)
  2．额定电压750V．1500V
    Rated voltage：750V．1500V。3．标称截面0.5--400mm2
    Nominal cross section：0．5-400rnm2
    4．导体长期工作温度125℃，短路过载温度可达到250℃(5s)
    Long-term working temperature is 125℃．Max．working temperature 0f the conductors in short-circuit is 250℃．(5S)
  5．电气性能物理机械性能优异
  Good electrical insulation．physical mechanical properties．
  6．电缆阻燃性能达到GB／T18380．1-2001中DZ-1法的要求
  Flame-residence conforms to DZ-1 of in GBl8380.1-2001
  7．低烟无卤特性：(1)导电率≤10μs／mm
                   (2)满足GB／T1 7651—1 998标准要求．其透光率≥60％
                   (3)PH值≥4．3
    Low smoke non-halogen property：(1)Conductivity≤1 O μs／mm
    (2)Density transparence of cable flaming smoke≥60％ conforming
    to GB／T17651—1998
    (3)PH≥4．3
 8．烟气毒性符合GAl32准安全级的要求。
    Smoke poisonous conform to GAl32．
地铁隧道专用电缆结构参数表Cable construction

空气敷设长期连续负荷载流量单位：A
Continuous loading current of cable laid in air

编制说明Directions：
    1、辐照交联聚烯烃绝缘地铁隧道专用电缆连续负载电流是依照IEC-287电缆载流量计算标准进行计算的．并通过修正确定。
    Continuous loading current of cable is calculated and revised per IEC-287
    2．地铁隧道专用电缆的长期工作温度为125℃。
    Long-term working temperature of cable is the cable is 125℃
    3、布线方式分为接触与非接触两种．其中非接触指电缆间的相互距离大于二倍的电缆外径，接触即指电缆相互靠在一起或相互间距小于二倍的电缆外径。
    4．周围环境温度以40℃作为基准温度。
    Environment temperature is supposed 40℃ as basic temperature
环境温度变化修正系数表
The revised coefficient of the environmental temperature change

注：K系指在塑料槽中有负荷电缆根数与总的电缆根数之比(负荷电缆我指通是流发热电缆，信号线除外)。  
                                                  Note．  k=   Loading current cables 

                                                                     Total number of the cables
(Loading current cables means cables that generating heat when working excet for signal line)
电缆敷设于塑料槽中载流量修正系数表
The revised coefficient of the cable loading current lay in plastic flume

电缆穿管敷时载流量修正系数表
The revised coefficient of the cable loading current lay in tube

注：
1．穿管根数指有负荷发热的电缆根数。
2．穿管线的体积不超过管体积的40％。
3．当管并列敷设时乘0．95修正系数。
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

• NA-YJRP 铜芯氟塑料绝缘和护套屏蔽耐火安装软线
• 氟塑料电缆参数的优势
• 氟塑料电缆工艺的优势
• 防水氟塑料电缆的优势
• 耐高温氟塑料电缆的优势