Fire security cable 1)with BC,TC,CCA conductor from 1-100cores, 2 PE insulation, 3)PVC ... 7*0.18mm ,7*0.20mm or 7*0.24mm copper,tinned copper or CCA,stranded,,shield or unshielded,good PVC, LZSH PVC.conductor ... :bare copper or tinned copper or CCA or CCS conductorinsulation: PVC flame proof or common PVC insulationcable core: ... or security system fire security cable 6 core,7 core,8 core