Conductor Insulation (mm) Type Yellow/Green Grounding Core Size Construction Nominal Maximum Diameter Yes No (mm2) (mm) Thickness Diameter (mm) H07V-U × 1G1.5 1/1.38 0.7 2.78 3.2 × 1×1.5 1/1.38 0.7 2.78 3.2 × 1G2.5 1/1.78 0.8 3.38 3.9 × 1×2.5 1/1.78 0.8 3.38 3.9 × 1G4 1/2.25 0.8 3.85 4.4 × 1×4 1/2.25 0.8 3.85 4.4 × 1G6 1/2.76 0.8 4.36 5.0 × 1×6 1/2.76 0.8 4.36 5.0 × 1G10 1/3.58 1.0 5.58 6.4 × 1×10 1/3.58 1.0 5.58 6.4