Applications    
It is used in the environment with high demand on fire-resisting performance such as high-rise building,oil field,power station, power plant,mine,chemical industry, subway, and so on, also the necessary cable prepared for emergency power, fire-fight pump, and communication system of elevator. In time of being Directly fired by flame, it could ensure continually Supplying power and transmitting signal to keep lighting within certain time(no less than 3h)for people to retreat safely and also to benefit fighting fire to lower damage.    

Executive Standard    As the enterprise is standard    

Working conditions    
   1.A.C.Rated voltage: U/U(V series:600/1000V
       K series: 450/750V, B series: 450/750V)      
   2. Max.cable working temperature:   
     (1)Flame-retardant PVC insulation & sheath: 70℃&105℃,XLPE insulation: 90℃.
     (2)Fluoroplastics insulation & sheath: 200℃ & 260℃ Fluoroplastics insulation & 105℃ Flame-retardant PVC sheath: 90℃ & 125℃. 
     (3)Low smoke & Halogen,Flame-retardant PVC Insulation & sheath: 70℃,low Smoke & Halogen-free, flame-retardant polyolefin insulation &sheath: 90℃ & 125℃. 
    3. Min. Environment Temperature: 
        (1) Flame-retardant PVC insulation & sheath: -40℃ for fixed installation,-15℃for non fixed installation  
        (2) Fluoroplastics insulation & sheath: -60℃ for fixed installation,-20℃ for non fixed installation 
    4. Environment temperature in installation should be no lower than 0℃ 
    5. Fire-resistant Character as the stipulations in IEC331 

   


Technical  characters   
   1.  the outer diameter of fire-resistant cable with cross-section area 25 m㎡or less is bigger than that of common cable by 15% ,and that of the cable with cross-section area of more than 25m㎡ is bigger than that of common cable by 25%;  
   2. the electric,physic & mechanical performance of the cable remains the same as that of common one;   
   3.the current-loading capacity of fire-risistant Cable remains the same as those of similar type cable;   
   4. fire-resistant test should be conducted as IEC331 or GB12666.6 standard

Cautions
 1. four layers if mica tape should be wrappde around between insulation and conductor as fire-resistant layer in connection lf the cable.other installation measures may be taken according to that for similar type cable;
 2. the user should strictly avoid damage on the cable with sharp-edged objects. Otherwise it would affect fire-resistant performance of the cable;
 3. cable allowable radius: OD less than 25mm should not less than 4D; OD more than 25mm should not less than 6D.