Photovoltaic cable insulation material is made of high-purity resin as the base material, with halogen-free flame retardant, cross-linking agent, antioxidant, etc. mixed and extruded into granules. It has excellent performance such as halogen-free, heat-resistant, weather-resistant, etc., no precipitation pollution, meets the relevant requirements of Rohs, etc., and is easy to extrude and process.
Product application: Suitable for the production of solar photovoltaic cables with EN50618, 2PFG1169, IEC62930 and other standards.
| Project | Standard Value | Typical Value | Unit | Method |
| Physical Property | ||||
| Hardness | 95±3 | 95 | Shore A | GB/T2411 |
| Density | ≤1.2 | 1.1 | g/cm3 | GB-T1033 |
| Low-Temperature Brittle Temperature | ≤15/30 | 0/30 | PCS | GB/T5470 |
| Tensile Strength Before Irradiation | ≥8 | 12 | MPa | GB/T1040 |
| Elongation at Break Before Irradiation | ≥180 | 220 | % | GB/T1040 |
| Tensile Strength Before Aging | ≥10 | 14.8 | MPa | GB/T1040 |
| Elongation at Break Before Aging | ≥150 | 180 | % | GB/T1040 |
| Thermal Elongation(0.2MPa×250℃×15min) | ||||
| Elongation Under load | ≤100 | 30 | GB/T2951 | |
| Permanent Deformation | ≤25 | 0 | GB/T2951 | |
| Aging Performance(150℃×168H) | ||||
| Change Rate of Tensile Strength | ≤-30 | -20 | % | GB/T2951.12 |
| Change Rate of Elongation At Break | ≤-30 | -24 | % | GB/T2951.12 |
| Electrical Performance | ||||
| 20℃ Volume Resistivity | ≥1.0×10^15 | 2.8×10^15 | Ω.cm | GB/T 1410 |
| Dielectric Strength | ≥20 | 30 | MV/m | DIN EN 6024 |
| ≥13 Cycles Insulation Resistance(Water) | Pass | Pass | - | UL4703 |
| ≥13 Cycles Insulation Resistance (Air) | 98℃ Pass | 98℃ Pass | - | UL4703 |
| (90℃)Immersion Capacitance Appreciation | ||||
| 1-Day Dielectric Constant | ≤3.8 | 2.9 | - | UL4703 |
| 1-to 14-Day Capacitance Change Rate | ≤4.9 | 3.8 | - | UL4703 |
| 7-to 14-Day Capacitance Change Rate | ≤1.6 | 1.2 | - | UL4703 |
| Flame Retardant And Combustion Performance | ||||
| Halogen Acid Gas Generation | ≤0.5 | 0.1 | mg/g | IEC60754 |
| PH | ≥4.3 | 5.5 | - | IEC60754 |
| Conductivity | ≤10 | 6 | μs/mm | IEC60754 |
Notes:
1. When the storage environment is humid or the surface quality requirements are high, the pellets can be placed in a hot air hopper at 80°C to dry for 1 to 2 hours.
2. The screw should be cleaned before extrusion to ensure the cleanliness of the product. It is recommended to use an 80-mesh or 100-mesh filter.
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