a, Construction:

Conductor: Stranded Copper
Insulation: Cross-linked polyethylene (XLPE) or Polyvinyl chloride (PVC) 
Filler: Polypropylene filament with lapped binding tape 
Binder: Binding tape 
Sheath: Polyvinyl chloride (PVC)

b. Operating Features:
 1)The maximum conductor operating temperature: 90°C
During short circuit (lasting less than 5 seconds) the maximum temperature of the cable conductor shall not be above 250°C
Environment temperature should be no lower than 0°C for laying the cable.
2)Bending Radius of the Cable:
Single Core Cable: Non Armored Cable 20D, Armored Cable 15D
Cores Cable: Non Armored Cable 15D, Armored Cable 12D.
 Remarks: D means practical external diameter of the cable