Inner Conductor: 0.77±0.005mm, Solid Bare Copper, OFC Core No .: 2 Core Color Code: Red / Black Insulation Thickness(mm) : 0.29 Insulation Dia.(mm): 1.35±0.1 Insulation: FR-PVC Rip Cord: Yes Jacket Thickness(mm) : 0.70 Jacket Dia.(mm) : 4.1±0.2 Jacket: FR-PVC, Red color, Extruded tube jacket, ropy finish Max Operating Voltage : 300V DC resistance @ 20C: 37.5 Ohm / Km