Twin-core solar cables are ideal for photovoltaic (PV) systems. By integrating the positive and negative conductors into a single cable, they simplify cable routing, reduce installation time and labor costs, and improve overall installation efficiency. This makes them a popular solution for utility-scale solar projects in Australia.
Item | Specification |
Conductor | Soft stranded tinned copper conductor, Class 5 |
Insulation | XLPE; colors: red and black |
Outer sheath | XLPE; color: black |
Marking | EN 50618 H1Z2Z2-K 2 × **mm² DO NOT DISCONNECT UNDER LOAD Suzhou Jinhan CO., LTD. |
Reference standard / declaration | EN 50618; RoHS |
Item | Specification |
Ambient temperature when cable is used | 90°C |
Maximum rated conductor temperature | 120°C (for a maximum of 20,000 hours) |
Rated voltage | DC 1.5 kV |
Minimum bending radius | 5 × D |
AC dielectric test | 6.5 kV / 5 min; no breakdown |
DC dielectric test | 15 kV / 5 min; no breakdown |
Size (mm²) | Conductor construction | Reference conductor diameter (mm) | Max. DC resistance at 20°C (Ω/km) | Insulation nominal thickness (mm) | Insulation minimum thickness (mm) | Sheath nominal thickness (mm) | Sheath minimum thickness (mm) | Reference cable O.D. (mm) | Min. insulation resistance at 20°C (MΩ·km) | Min. insulation resistance at 90°C (MΩ·km) |
2 × 2.5 | 49/0.25 | 2.0 | 8.21 | 0.7 | 0.53 | 0.8 | 0.58 | 5.1 × 10.2 | 690 | 0.69 |
2 × 4 | 56/0.285 | 2.5 | 5.09 | 0.7 | 0.53 | 0.8 | 0.58 | 5.7 × 11.4 | 580 | 0.58 |
2 × 6 | 84/0.285 | 3.0 | 3.39 | 0.7 | 0.53 | 0.8 | 0.58 | 6.2 × 12.4 | 500 | 0.50 |
Nominal cross-section (mm²) | Single cable free in air (A) | Single cable on a surface (A) | Two loaded cables touching on a surface (A) |
1.5 | 30 | 29 | 24 |
2.5 | 41 | 39 | 33 |
4 | 55 | 52 | 44 |
6 | 70 | 67 | 57 |
10 | 98 | 93 | 79 |
16 | 132 | 125 | 107 |
25 | 176 | 167 | 142 |
35 | 218 | 207 | 176 |
Ambient temperature (°C) | Conversion factor |
Up to 60 | 1.00 |
70 | 0.92 |
80 | 0.84 |
90 | 0.75 |
