This product is made of polymer resin as the base material, halogen-free flame retardant, cross-linking agent, antioxidant and other additives, and is mixed, plasticized and granulated.
This product is made of polymer resin as the base material, halogen-free flame retardant, cross-linking agent, antioxidant and other additives, and is mixed, 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 sheath 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℃） | -- | 1.35 | g/cm3 | GB/T 1033 |
| 2 | Tensile strength | ≥10 | 13.5 | MPa | GB/T 1040.2 |
| 3 | Elongation at break | ≥250 | 320 | ％ | GB/T 1040.2 |
| 4 | Hot extension 250℃, 0.2Mpa, 15min | ||||
| The elongation rate under load | ≤100 | 40 | ％ | 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 | 14 | % | GB/T 2951.12 | |
| Rate of change of fracture elongation | ≤±30 | -12 | % | GB/T 2951.12 | |
| 6 | Impact brittlement temperature（-40 ºC） | ≤15/30 | 0/30 | GB/T 5470 | |
| 7 | Volume resistivity(20ºC) | ≥1.0×10^12 | 2.5×10^12 | Ω·m | GB/T 1410 |
| 8 | Volumere sistivity(90ºC) | ≥1.0×10^9 | 1.2×10^9 | 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 | ≥7 | 8.5 | 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 100days of immersion in water | ≥200 | 258 | % | GB/T 1040.2 | |
| The rate of change ofelongation at break after 28/100 days of immersion | ≤±20 | -16 | % | GB/T 2951.12 | |
| 11 | Resistant to damp heat 90℃ /relative humidity 85%, 1000h | ||||
| Rate of change in the tensile strength | ≤-30 | -19 | % | EN60068-2-78 | |
| Rate of change of fracture elongation | ≤-30 | -20 | % | EN60068-2-78 | |
| 12 | HCl and HBr gas releases | ≤2 | 0 | mg/g | GB/T17650 |
| 13 | Combustion gas PH | ≥4.3 | 5.9 | / | GB/T17650 |
| 14 | Combustion gas conductivity | ≤10 | 4 | μs/mm | GB/T17650 |
| 15 | LOI | ≥28 | 30 | % | GB/T2406 |
| 16 | Weather/UV resistance test 720h（360/loops） | ||||
| Tensile strength retention | ≥70 | 85 | % | EN 50618:2014 appendix E | |
| Elongation at break retention | ≥70 | 88 | % | EN 50618:2014 appendix E | |
| 17 | Ozone resistant 25±2℃, 24h Ozone concentration （250-300）×10^-4% | ||||
| \ | No cracking | No cracking | IEC 60811-403 | ||
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