National Standard: JB/T8734.2-2012
This series of products is suitable for internal wiring of buildings, and can also be used for lightning protection equipment to introduce underground wires.
Insulation layer: material-high-quality PVC/C;
Conductor: material-oxygen-free copper.
| Nominal cross-sectional area mm2 | Minimum number of single wires in stranded conductors | Insulation Thickness Specified Value mm | Average outer diameter upper limit mm | Maximum conductor resistance at 20°C Ω/km | Minimum insulation resistance at 70°C MΩ·km | |
| copper core | Tinned copper core | |||||
| 0.75 | 7 | 0.7 | 2.9 | 24.5 | 24.8 | 0.013 |
| 1.0 | 7 | 0.7 | 3.1 | 18.1 | 18.2 | 0.012 |
| 1.5 | 7 | 0.7 | 3.4 | 12.1 | 12.2 | 0.011 |
| 2.5 | 19 | 0.8 | 4.1 | 7.41 | 7.56 | 0.011 |
| 4 | 19 | 0.8 | 4.8 | 4.61 | 4.70 | 0.009 |
| 6 | 19 | 0.8 | 5.3 | 3.08 | 3.11 | 0.0084 |
| 10 | 49 | 1.0 | 7.3 | 1.83 | 1.84 | 0.0072 |
| 16 | 49 | 1.0 | 8.6 | 1.15 | 1.16 | 0.0062 |
| 25 | 98 | 1.2 | 10.2 | 0.727 | 0.734 | 0.0058 |
| 35 | 133 | 1.2 | 11.7 | 0.524 | 0.529 | 0.0052 |
| 50 | 133 | 1.4 | 13.9 | 0.387 | 0.391 | 0.0051 |
| 70 | 189 | 1.4 | 16.0 | 0.268 | 0.270 | 0.0045 |
| 95 | 259 | 1.6 | 18.2 | 0.193 | 0.195 | 0.0044 |
| 120 | 259 | 1.6 | 19.8 | 0.153 | 0.154 | 0.0040 |
| 150 | 336 | 1.8 | 22.2 | 0.124 | 0.126 | 0.0040 |
| 185 | 427 | 2.0 | 24.6 | 0.0991 | 0.100 | 0.0040 |
| Product Standards | Product number | Product Specifications | Number of conductors | Conductor diameter | Average thickness of core wire | Insulation outer diameter | Maximum conductor resistance at 20°C | Minimum insulation resistance at 70°C |
| N | mm | mm | mm | Ω/km | MΩ.km | |||
| JB/T8734.2-2012(450/750V) | BVR | 1×2.5 | 19 | 0.410 | 0.87 | 3.80 | 7.41 | 0.011 |
| JB/T8734.2-2012(450/750V) | BVR | 1×4.0 | 19 | 0.520 | 0.87 | 4.35 | 4.61 | 0.009 |
| JB/T8734.2-2012(450/750V) | BVR | 1×6.0 | 19 | 0.630 | 0.86 | 4.90 | 3.08 | 0.0084 |
| JB/T8734.2-2012(450/750V) | BVR | 1×10.0 | 49 | 0.510 | 1.09 | 6.30 | 1.83 | 0.0072 |
National Service Number
CN