| About |
|---|
| SI-LINK™ Crosslinkable Polyethylene DFDA-6451 Natural with a density of 0.922, and a melt index of 1.5, is a silane-ethylene copolymer for use in medium voltage power cable applications. DFDA-6451 Natural may be crosslinked after it is extruded with DFDB-5480 Natural catalyst masterbatch by allowing moisture to diffuse into the insulation. Specifications SI-Link DFDA-6451 NT / SI-Link DFDB 5480 in combination, can be used as the insulation of XLPE medium voltage cables. DFDA-6451 NT/DFDB 5480 NT, when processed using sound extrusion and crosslinking conditions, meet typical medium voltage requirements as outlined in IEC 60502.&& |
| Product Description | |
|---|---|
| Supplier | DOW |
| Generic | PE copolymerization |
| Material Status | Commercial: Active |
| Availabilitys | Africa & Middle East ,North America,Asia Pacific |
| Process Methods | Profile extrusion |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 0.922 | g/cm³ | ASTM D1505 |
| Melt Flow Rate | |||
| 190℃，2.16kg | 1.5 | g/10min | ASTM D1238 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | 16.5 | MPa | ASTM D638 |
| Tensile strain | |||
| fracture | 350 | % | ASTM D638 |
| Aging performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Tensile strength retention rate | |||
| 7 days，121℃ | 90 | % | ASTM D638 |
| Elongation retention rate | |||
| 7 days，121℃ | 95 | % | ASTM D638 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| High temperature creep | 100 | % | ICEA T-28-562 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Dielectric constant | 2.30 | ASTM D150 | |
| power factor | 2.50E-4 | rad | ASTM D150 |
| Process Conditions | |||
|---|---|---|---|
| Extrusion | Nominal value | Unit | Test method |
| Drying temperature | 60 to 71 | °C | |
| Drying time | 4.0 to 6.0 | hr | |
| Melt temperature | 149 to 232 | °C | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 20 in/min |
| 3. Cured 2.5 hours in 90°C water, 30 mil wall |
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