... 12C,14C,16C,20C 4.Copper,CCA or CCS 5.ISO,UL,CE, High Quality Alarm Cables , Specifications:1.) Conductor ... : bare copper or tinned copper or CCA or CCS conductor2.) Insulation ... , 8, 12, 14,16,18,206.) Used for alarm mechanisms or security system Standards: BS4737 BS6360 BS6746 Nom.DC ... 18.9Screened40x0.2240x7/0.201.110.8 Shielded Alarm Cable