Single wire electrolytic copper conductors are insulated with PVC (VDE0281/HD.21.1.S4 TI1) in suitable colours as per VDE 0815 standards. Cores twisted in pairs., Pairs twisted in layers. All of them are wrapped with polyester tape. Up to 10 pairs onwards the 0.40 mm, from 10 pairs onwards the 0.60 mm tinned copper drain wire is placed on the polyester tape along. The cable wrapped with AL-PES foil and covered with the PVC outer sheath (VDE0281/HD.21.1.S4 TM1) in RAL 3000 red colour.
This Cable group has ""flame retardancy"" property according to IEC 332-1
In reference to: VDE 0815