Special cables with two steel wire support can be used in high-rise buildings and high quantities. The properties are:
- Class 5 IEC 228, annealed electrolytic flexible copper conductor
- PVC insulated Grey and black PVC outer case (PVC/ST5).
- The cable conductive values are coded on it. The numbers are marked at least 25 times in one meter.
- Nylon thread to easily separate the outer case.
