Visico ME4425/LE4462 is a silane crosslinkable black compound system designed for overhead track resistant energy cables. Visico ME4425 is a medium density polyethylene, copolymerized with vinyl silane. LE4462 is a crosslinking catalyst masterbatch specially designed to be used with Visico ME4425 to accelerate the moisture-induced reaction and impart track resistance. The system crosslinks quickly in sauna or in hot water.
Cable insulation with a proper mixture of Visico ME4425 (90 parts) and LE4462 (10 parts) exhibits excellent thermo-oxidative stability. The system can be used with copper or aluminum although overhead cables, covered conductors, is primarily aluminum conductors due to the weight saving versus copper for overhead pole cables. The use of ME4425 and LE4462 is designed to provide good weathering performance.
If a semiconductive inner layer is required, we recommend to use Borealis LE0542 together with Visico ME4425/LE4462.
Applications
Visico ME4425/LE4462 is designed as a track resistant covering for overhead energy cables with rated voltages up to 35 kV.
Specifications
Visico ME4425/LE4462 in combination meets the applicable requirements as below when processed using sound extrusion and testing procedure: NBR 11873 / NBR 10296 ASTM D2303/ASTM D2132 IEC 60587
The standards referred to above is a selection and is not complete coverage of all applicable standards. Contact your Borealis representative for additional information.
Special Features
Visico ME4425/LE4462 insulation system offers: Excellent processing properties Low scorch allowing long runs and more frequent tooling changes Excellent surface finish Less smell, more consistent quality (no volatiles) Good curing speed No drying prior to extrusion Excellent storage stability
| Original Document | Technical Datasheet-ISO(English) | |||
| Features | Good SurfaceEasy processingWeather ResistanceCopper Contact Stabilized | |||
| Appearance | Black | |||
| Processing | Wire & Cable Extrusion | |||
| Physical | Value/Unit(Sign in to View) | Test Standard | Test Condition |
|---|---|---|---|
Density/Specific Gravity | *** g/cm³ | ISO 1183 | mixture 90:10 |
Melt Mass Flow Rate(MFR) | |||
190℃/2.16 kg | *** g/10min | ISO 1133 | |
Environmental Stress Cracking Resistance | *** Hours | IEC 60811-406 | 50 °C, Igepal 10 %, F20 |
| Mechanical | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Tensile Strength | |||
- | *** Mpa | IEC 60811-501 | 250 mm/min |
Tensile Elongation | |||
Break | *** % | IEC 60811-501 | 250 mm/min |
| Impact | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Brittleness Temperature | *** °C | ASTM D 746 | |
| Hardness | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Shore D hardness | *** D | ISO 868 | 1 s |
| Electrical | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Volume Resistivity | *** Ohm-cm | IEC 60093 | |
Dielectric Constant(Permittivity) | |||
50 Hz | *** - | IEC 60250 | |
Dielectric Strength | *** kV/mm | IEC 60243 | |
| Aging | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Tensile Strength(Heat Aging) | *** % | IEC 60811-401 | Change, 240 h, 135 °C |
The information presented on this datasheet was acquired by AjiEng.com from the producer of the material. AjiEng.com makes substantial efforts to assure the accuracy of this data. However, AjiEng.com assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.
