| Serial number | Product name | Product grade | Main uses of the product |
| 1 | 125°C irradiated cross-linked ethylene propylene rubber insulation | R5125 | Cable control instrumentation is used for wires |
|
Testing items |
Unit |
R5125 | |
| Standard value | Typical values | ||
| Density | g/cm³ | — | 1.36 |
| Hardness | A | 87±2 | 89 |
| Tensile strength | Mpa | ≥6.0 | 10.0 |
| Elongation at break | % | ≥300 | 330 |
| Thermal aging | °C ×h | 158×168 | |
| Tensile strength retention | % | ≥70 | 80 |
| Elongation at break | % | ≥70 | 85 |
| Mineral oil resistance test 902# oil | ℃xh | 50×24 | |
| The rate of change in tensile strength | % | ≤±40 | -11 |
| Rate of change in elongation at break | % | ≤±40 | -15 |
| 20°C volumetric resistivity | Oh · cm | ≥1.0×1014 | 2.4×1014 |
| Dielectric strength | Mv/m | ≥18 | 32 |
| Oxygen index | % | ≥28 | 30 |
| Smoke density | — | — | |
| There is flame | % | ≤100 | 75 |
| No flames | % | ≤250 | 175 |
| PH value | — | ≥4.3 | 5.9 |
| Conductivity | μs/ mm | ≤10.0 | 3.4 |