| NO. |
Test Items |
Values |
| 1 |
Before ageing test |
1.1Elongation at break(%) |
≥250 |
| 1.2Tensile strength(MPa) |
≥5 |
| 2 |
After Oven ageing test |
2.1Test condition |
100±2℃/168h |
| 2.2Middle range of tensile strength(MPa) |
≥4.2 |
| 2.3Middle range of elongation at break(%) |
≥250 |
| 3 |
Compatibility oven ageing test |
3.1Test condition |
80±2℃/168h |
| 3.2Tensile strength rate(%) |
±25 |
| 3.3Elongation rate at break(%) |
±25 |
| 4 |
Air bomb ageing test |
4.1Test condition |
127±2℃/40h, 0.55MPa |
| 4.2Tensile strength rate(%) |
±30 |
| 4.3Elongation at break rate(%) |
±30 |
| 5 |
Ozone ageing test |
5.1Test condition |
40℃/72h, concentration 2ppm or 25℃/24h, 260ppm |
| 5.2Test result |
Without crack |
| 6 |
Heat extension test |
6.1 Test condition |
200±3℃/15min, stress20N/cm2 |
| 6.2Loading elongation rate(%) |
< 100 |
| 6.3Un-loading elongation rate(%) |
< 25 |
| 7 |
Low-temperature bend test |
7.1Test condition |
-40℃/4h |
| 7.2Low-temperature elongation at unbreak rate(%) |
> 30% |
| 7.3Wire surface after low-temperature bend |
Without crack |
| 8 |
Oxygen index and flame resistance( EN50265-2-1 burning test ) |
≥20 |
