Twin Flat Electric Cable Description Voltage: 300/450v  Conductors: Plain annealed copper  Insulation: PVC (Polyvinyl-Chloride)  Core identification: 1 core, 2 core, 3 core  Sheath/Jacket: PVC (Polyvinyl-Chloride)  Operating temperature: Maximum 70° C, minimum bending 0° C  Standard: IEC,BS Minimum Bending Radius: 15 x overall diameter