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Item | Typical Data | Test Method |
Electrical Strength Test | ≥20kV/mm | GB/T 1408.1-2006 |
Volume Resistivity | ≥1×1014Ω·cm | GB/T 1410-2006 |
Dielectric Constant | 2~3 | GB/T 1409-2006 |
Shore Hardness | 70±5A | GB/T 531 |
Mechanical Property | ||
Before heat ageing | ||
Tensile Strength | ≥4.0MPa | GB/T 528-2009 |
Elongation at break | ≥200% | GB/T 528-2009 |
After Heat aging (180℃, 7d) | ||
Tensile Strength Change | ±30% | GB/T 528-2009 |
Elongation Change | ±30% | GB/T 528-2009 |
LowTemperature Elongation(-15℃, 2h) | ≥20% | GB/T 2951.4-1997 |
Low Temperature Flexibility(-50℃, 4h) | Nocracks | UL224-2004 |
High Temperature Crack Resistance(155℃, 2h) | Nocracks | GB/T2951.6-1997 |
Nominalcross-sectionalarea(mm²) | Recommended Inner Diameter of ConductorCover(mm) |
50~70 | 12 |
95~120 | 17 |
150~185 | 20 |
210~300 | 24.2 |
400 | 30 |
500 | 32 |
630 | 35 |
800 | 39.8 |
Voltage(KV) | ≤10kV | ≤35kV | ≤110kV | ≤220kV |
Wallthickness | 2.0±0.3mm | 3.0±0.4mm | 4.0±0.5mm | 6.0±1.0mm |