The outer diameter of the wire is (3.0 ± 0.1) mm, with a tensile strength between 180-200 Newtons.
The inner layer consists of two wires, each with a polypropylene ethylene (PPE) insulation layer, with a diameter of (1.0 ± 0.05) mm and a tensile strength between 90-110 Newtons.
The core wire of the inner layer conductor is made of galvanized or tin-plated steel with a diameter of (0.52 ± 0.02) mm and a tensile strength between 70-110 Newtons.
The minimum thickness of the external insulation layer should not be less than 0.25 mm.