Single Core 300/500V Electrical Cable Wire PVC Insulation With Flexible Copper Wires 1. Description:Single core cables with copper conductor , ( solid, stranded or flexible ) and insulated with PVC compound. 2. Construction:- Conductor : Plain annealed circular copper class 1,2 ,5 and 6. - Insulation : PVC compound rated 70º C or 85º C for continuous operation 3. Applications : Building wires fixed installation and laid in pipes for general applications