Description
ZARLNKTM SC0592 is a crosslinkable black polyethylene compound, specially designed for semiconductive conductor screen and bonded insulation screen of power cables.
Applications
ZARLNKTM SC0592 is intended for semiconductive screen of XLPE medium voltage (MV) AC cables with rated voltages up to 33 kV (Um = 36 kV). It can be used as conductor and insulation screen for bonded cable constructions and as conductor screen for strippable cable constructions.
The values are voltages between phases as defined in IEC 60183.
Specifications
ZARLNKTM SC0592 LE0592 is expected to meet the applicable requirements included in the below mentioned standards provided it is processed using sound material handling, extrusion and crosslinking practices as well as appropriate testing procedures. This applies up to the maximum recommended voltage level indicated in “Applications” section above since some standards cover wider voltage ranges.
- IEC 60502-2
- AEIC CS9 (below 8 kV/mm) – AEIC CS8
- ANSI/ICEA S-108-720 – ANSI/ICEA S-93-639 – ANSI/ICEA S-94-649 – ANSI/ICEA S-97-682
- DIN VDE 0276-620 – DIN VDE 0276-632
- Cenelec HD 620 S2 (Part 1) – Cenelec HD 632 S1
- NF C33-226
- UL 1072
Special Features
ZARLNKTM SC0592 is a ready-to-use semiconductive compound. It offers excellent thermal stability which provides robust cable extrusion and crosslinking at high surface temperature, allowing for high line speed.
The excellent distribution of carbon black and additives in ZARLNKTM SC0592 results in a smooth semiconductive screen.
Physical Properties
Data should not be used for specification work
| Property | Typical Value | Test Method |
|---|---|---|
| Density (Base Resin) | 1.13 gr/cm3 | ISO 1183 |
| Elongation at Break (250 mm/min) | >150 % | IEC 60811-401 |
| Tensile Strength (250 mm/min) | 14 N/mm2 | IEC 60811-401 |
| Change of Tensile strength after aging 168h , 135’C | < 25% | IEC 60811-401 |
| Hot set test (200’C , 20N/cm2) Elongation under load | <100 % | IEC 60811-507 |
| Permanent Elongation | <10 % | “ |
| MDR , max torque | 12 dNm | ISO 6502 |
Electrical Properties
Data should not be used for specification work
| Property | Typical Value | Test Method |
|---|---|---|
| DC Volume Resistivity (23’C) | <100 Ohm.cm | ISO 3915 |
| DC Volume Resistivity (90’C) | <1000 Ohm.cm | ISO 3915 |
Processing Techniques
ZARLNKTM SC0592 provides excellent surface finish and outstanding output rates, when processing conditions are optimized for the actual processing equipment and cable dimensions. Optimal conditions may vary according to the equipment used. Hence all material handling should preferably be conducted in closed systems and in clean room conditions. Please contact your Borealis representative for more details.
Pre-drying
It is recommended that ZARLNKTM SC0592 is dried prior to extrusion. Typical drying conditions are shown below: Pre-drying (4 h): 60 °C (With dehumidified air)
Extrusion
A screen-pack on the extruder is recommended for improved melt homogenization. Typical processing temperature ranges for ZARLNKTM SC0592 are shown below:
Melt temperature: 120 – 135 °C
Packaging
- Small Octabin (700 kg)
Storage
ZARLNKTM SC0592 has a shelf life of 18 months from production date if stored in unopened original packages, under dry and clean conditions at temperatures between 10 – 30 °C (50 – 85 °F). Material shelf life is affected by the storage conditions and extreme conditions influence the general material quality and performance. An opened package should be used within two weeks or be sealed airtight for further storage. Before use, material shall be conditioned indoors (production room) to reach ambient temperature. It is also recommended to ensure proper stock rotation by First In – First Out principle