About |
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UV stabilised silane crosslinkable polyethylene compound for “Câble Torsadé” overhead power cable insulation This is a chemically crosslinkable polyethylene compounds for insulation of cables where resistance to ultra-violet radiation is required. The material is carbon loaded and possesses excellent extrusion properties at high output rates. The graft component SX523 is mixed with a crosslinking catalyst masterbatch CM493 or CM497 generally in the ratio 95:5 and is curable by exposure to moist conditions. The compound has been specially developed for the “Câble Torsadé” NFC 33-209 specification for overhead power cable applications.&& |
Product Description | |
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Generic | LDPE |
Material Status | Commercial: Active |
Features | Weather resistance is good,Crosslinked |
Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
Process Methods | Extrusion |
Technical Data | |||
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PHYSICAL | Nominal value | Unit | Test method |
Density | 0.950 | g/cm³ | BS 2782 620A |
MECHANICAL | Nominal value | Unit | Test method |
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tensile strength | 18.0 | MPa | IEC 60811-1-1 |
Tensile strain | |||
fracture | 450 | % | IEC 60811-1-1 |
Aging performance | Nominal value | Unit | Test method |
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The rate of change in tensile strength | |||
150℃,240 hr | 20 | % | IEC 60811-1-2 |
Changes in tensile stress during fracture | |||
150℃,240 hr | -18 | % | IEC 60811-1-2 |
THERMAL | Nominal value | Unit | Test method |
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thermosetting | IEC 60811-2-1 | ||
Elongation under load: 20 N/cm ², 200 ℃ | 80 | % | IEC 60811-2-1 |
Maximum permanent elongation after cooling | 5.0 | % | IEC 60811-2-1 |
Electrical performance | Nominal value | Unit | Test method |
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Volume resistivity | |||
20 ℃ | > 1.5E+16 | ohms·cm | IEC 60502 |
Relative permittivity | |||
23℃,50 Hz | 3.47 | IEC 60250 | |
power factor | |||
50Hz,23℃ | 0.00170 | IEC 60250 |
Process Conditions | |||
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Extrusion | Nominal value | Unit | Test method |
Barrel 1 zone temperature | 130 | °C | |
Barrel 2 zone temperature | 150 | °C | |
Barrel 3 zone temperature | 170 | °C | |
Barrel 4 zone temperature | 190 | °C | |
Head temperature | 200 | °C | |
Nozzle temperature | 210 | °C |
Notes |
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