Electric Cable Compound Insulation Sheath
Specifications
compound sheath masterbatch1.reinforced and insulated cable sheath layer
2.anti aging and ultraviolet ray
Introduction of Electric cable sheath
Black LDPE granules for cable jacketing compound cable sheath masterbatch
for more details please contact us directly.
| Specification of flame-redardant PE sheath for Electric Cable | ||||||
| Property | Unit | Specification | Inspection | |||
| HFR-70 1 | HFR-70 2 | JFR-70 1 | JFR-70 2 | |||
| tensile strength | Mpa | 20.2 | 15 | 19.8 | 18.4 | GB1040 |
| Elongation at break | % | 320 | 340 | 290 | 300 | GB1040 |
| Thermal agining 100°C 168h | -- | -- | -- | -- | -- | -- |
| tensile strength at aging | Mpa | 19 | 14 | 19.9 | 17.8 | GB1040 |
| Maximum change rate of Tensile Strength | % | -5.9 | -5.7 | -4 | -3.3 | -- |
| Elongation ate Break after aging | % | 280 | 320 | 280 | 290 | GB1040 |
| Maximum change rate of Elongation at break | % | -12.5 | -5.9 | -3.4 | -3.3 | -- |
| Weight Loss after Thermal aging | g/cm3 | 13.6 | 16.3 | 11.4 | 126 | -- |
| Thermal deformation | % | 44 | 55 | 36 | 41 | -- |
| Brittle point of Low temperature impact | °C | (-)20pass | (-)30pass | (-)15pass | (-)20pass | GB5470 |
| Thermal stable time at 20°C | min | 75 | 80 | 80 | 80 | -- |
| Volume resistivity at 20°C | Ω.m | 1.1*1011 | 1.1*109 | 3.0*1012 | 2.2*1011 | GB1410 |
| Volume resistivity at working time of 70°C | Ω.m | -- | -- | 2.7*109 | 1.2*109 | GB1410 |
| Dielectronic strength | mv/m | 24 | 25 | 26 | 27 | GB1408 |
| Oxygen index | g/cm3 | 31 | 31 | 31 | 31 | GB2406 |
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