This product is suitable for high-rise buildings, oil fields, power stations, power plants, mines, chemical industries, mines, subways and other occasions that require high fire prevention conditions. It is also a backup cable for emergency power supplies, fire pumps, elevator communication signal systems; This product has high fire resistance and can withstand direct flames without short circuit or open circuit faults for a certain period of time (not less than 3 hours), ensuring continuous power supply to maintain lighting and transmit signals, protecting personnel with sufficient time for safe evacuation, and facilitating fire extinguishing and reducing losses.
Compliant with IEC331 regulations
6. Recommended allowable bending radius for laying:
Non armored and braided shielded cables should not be less than 6 times the outer diameter of the cable; Steel tape armored cables should not be less than 12 times the outer diameter of the cable; Fluoroplastic insulated and sheathed cables
It should not be less than 8 times the outer diameter of the cable.
Model and name
1. AC rated voltage: U0/U (V series: 600/1000V, K series: 450/750V, B series: 450/750V)
2. Long term maximum operating temperature of cable
① Flame retardant polyvinyl chloride insulation and sheath: two types of cross-linked polyethylene insulation at 70 ℃ and 105 ℃: 90 ℃;
② Fluoroplastic insulation and sheath: two types at 200 ℃ and 260 ℃, fluoroplastic insulation at 105 ℃ and flame-retardant polyvinyl chloride sheath: two types at 90 ℃ and 125 ℃;
③ Low halogen, low smoke, flame-retardant PVC insulation and sheath: 70 ℃, halogen-free, low smoke, flame-retardant polyolefin insulation and sheath: 90 ℃ and 125 ℃.
3. Minimum ambient temperature:
① Flame retardant polyvinyl chloride insulation and sheath: fixed installation at -40 ℃; Non fixed installation -15 ℃;
② Fluoroplastic insulation and sheath: fixed installation -60 ℃; Non fixed installation -20 ℃.
4. The environmental temperature for cable installation and laying should not be lower than 0 ℃.
5. Fire resistance characteristics