| About |
|---|
| A Silane Grafted Crosslinkable Polyethylene Compound, Curable by exposure to moisture, for insulation of Power Cables and possessing excellent extrudability at output rate. PP 411 has been specially developed for cables upto 11KV. The special formulation and compounding techniques used ensure that the contamination level is kept within the required limits for this voltage grade. PP 411 has general Melt Flow Index range of 0.5-0.8, which provides firm stability during extrusion, especially for the thick insulation required for high voltage. Silane Grafted Crosslinkable Polyethylene For Medium Voltage Power Cable Insulation.&& |
| Product Description | |
|---|---|
| Generic | XLPE |
| Material Status | Commercial: Active |
| Features | Excellent Processability,Crosslinked |
| Availabilitys | Africa & Middle East |
| Process Methods | Extrusion |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 0.925 | g/cm³ | ASTM D1505 |
| Melt Flow Rate | |||
| 190℃，2.16kg | 0.55 | g/10min | ASTM D1238 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | 18.0 | MPa | IEC 60811 |
| Tensile strain | |||
| fracture | 650 | % | IEC 60811 |
| Aging performance | Nominal value | Unit | Test method |
|---|---|---|---|
| The rate of change in tensile strength in air | |||
| 135℃，168 hr | 6.0 | % | IEC 60811 |
| Changes in tensile stress during fracture in air | |||
| 135℃，168 hr | -6.0 | % | IEC 60811 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| thermosetting | IEC 60811 | ||
| Insufficient elongation | 110 | % | IEC 60811 |
| Maximum permanent elongation after cooling | 5.0 | % | IEC 60811 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Volume resistivity | |||
| 20 ℃ | 1.4E+16 | ohms·cm | IEC 60502 |
| Dielectric strength | 25 | kV/mm | IEC 60243-1 |
| Dielectric constant | 2.20 | IEC 60250 | |
| power factor | |||
| 23℃ | 4.00E-4 | IEC 250 |
| Process Conditions | |||
|---|---|---|---|
| Extrusion | Nominal value | Unit | Test method |
| Barrel 1 zone temperature | 160 | °C | |
| Barrel 2 zone temperature | 170 | °C | |
| Barrel 3 zone temperature | 180 | °C | |
| Barrel 4 zone temperature | 190 | °C | |
| Connector temperature | 200 | °C | |
| Nozzle temperature | 210 | °C | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 50 Hz |
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