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Aug 05 2025
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The overhead line cover is a tube used to protect overhead lines, which is usually used for line protection and maintenance in power, communication and other fields. It is made of polyethylene (PE) material and has the characteristics of light weight, corrosion resistance and good insulation. Because of its excellent performance and convenient installation method, it has been widely used in the field of overhead line protection, and is an indispensable supporting product in the electric power, communication and other industries.
Selection Table
| Product No. | Spec. | Conductor Cross Section/mm² | Max Conductor Diameter/mm | Thickness/mm (D) | Length/mm (L) |
| Voltage class: Up to20kV | |||||
| WRKG-1 | φ14 | up to 70 | 14 | 1.8±0.2 | 53±2 |
| WRKG-2 | φ18 | 95/120/150 | 18 | 2.2±0.2 | 68±2 |
| WRKG-3 | φ23 | 185/240 | 24 | 2.3±0.2 | 74±3 |
| WRKG-4 | φ31 | 300 | 28 | 2.3±0.2 | 85±3 |
| WRKG-5 | φ38 | 400-800 | 38 | 2.4±0.2 | 115±3 |
| Voltage class: 25kV and Above (Sealed with adhesive) | |||||
| WRKG-2* | φ18 | up to 150 | 18 | 2.2±0.2 | 68±2 |
| WRKG-3* | φ23 | 185-240 | 24 | 2.3±0.2 | 74±3 |
| WRKG-4* | φ31 | 300 | 28 | 2.3±0.2 | 85±3 |
| WRKG-5* | φ38 | 400-800 | 38 | 2.4±0.2 | 115±3 |
Technical Data
| Property | Test Method | Standard Value |
| Tensile Strength | ASTM-D-638 | ≥8MPa |
| Elongation at Break | ASTM-D-638 | ≥300% |
| Volume Resistivity | IEC 60093 | ≥1x10⁴ Ω ·cm |
| Dielectric Strength | IEC60243 | ≥25kV/mm |
Made of cross linked polyolefin.
Simple and fast wraparound installation.
Built-in creepage fitting with longer creepage distance and better performance.
High resistance to aging and erosion.
Superior UV and abrasion resistance.
New product sealed with adhesive is available for 25kv.
Voltage class: 15 kV, 25 kV.
