This product is made of polymer resin as the base material, with cross-linking agent, antioxidant and other additives added, and then mixed and plasticized and granulated.
This product is made of polymer resin as the base material, with cross-linking agent, antioxidant and other additives added, and then mixed and plasticized and granulated. It does not contain harmful substances such as heavy metals, and has excellent mechanical properties, electrical properties and wide processing temperature margin.
Application areas:
Applicable to photovoltaic cable insulation materials that meet the waterproof performance indicators in EN 50618:2014, IEC 62930, and 2PFG2750.
| No. | Testing Items | VALUE | Typicalval | UNIT | Method |
| 1 | Density（20℃） | -- | 1.15 | g/cm3 | GB/T 1033 |
| 2 | Tensile strength | ≥10 | 14.5 | MPa | GB/T 1040.2 |
| 3 | Elongation at break | ≥200 | 340 | ％ | GB/T 1040.2 |
| 4 | Hot extension 250℃,0.2Mpa,15min | ||||
| The elongation rate under load | ≤100 | 50 | ％ | GB/T 2951.21 | |
| Permanent rate of change after cooling | ≤15 | 0 | ％ | ||
| 5 | heat deterioration 150±2℃, 168h | ||||
| Rate of change in the tensile strength | ≤±30 | 12 | % | GB/T 2951.12 | |
| Rate of change of fracture elongation | ≤±30 | -10 | % | GB/T 2951.12 | |
| 6 | Impact brittlement temperature(-40 ºC) | ≤15/30 | 0/30 | GB/T 5470 | |
| 7 | Volume resistivity(20ºC) | ≥1.0×1013 | 1.5×1013 | Ω·m | GB/T 1410 |
| 8 | Volume resistivity(90ºC) | ≥1.0×1010 | 2.5×1010 | Ω·m | GB/T 1410 |
| 9 | Dielectric strength(20ºC) | ≥20 | 30 | MV/m | GB/T 1408.1 |
| 10 | Water resistance AD8 | ||||
| Tensile strength after 100 days of immersion in water | ≥5 | 8 | MPa | GB/T 1040.2 | |
| The rate of change in tensile strength after 28/100 days of immersion | ≤±15 | -10 | % | GB/T 2951.12 | |
| Elongation at break after 100 days of immersion in water | ≥175 | 195 | % | GB/T 1040.2 | |
| The rate of change ofelongation at break after 28/100 days of immersion | ≤±20 | -13 | % | GB/T 2951.12 | |
| 11 | Resistant to damp heat 90℃ relative humidity 85%, 1000h | ||||
| Rate of change in the tensile strength | ≤-30 | -18 | % | EN60068-2-78 | |
| Rate of change of fracture elongation | ≤-30 | -19 | % | EN60068-2-78 | |
| 12 | HCl and HBr gas releases | ≤2 | 0 | mg/g | GB/T17650 |
| 13 | Combustion gas PH | ≥4.3 | 5.8 | / | GB/T17650 |
| 14 | Combustion gas conductivity | ≤10 | 5 | μs/mm | GB/T17650 |
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