Overhead Line Tube (Insulcover)
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Overhead Line Tube is a Medium Voltage Line Cover that provides insulation for overhead conductors to help prevent electrical outages caused by trees or wildlife coming into the contact with distribution lines. It is manufactured from high quality Non Tracking Polyolefin material.
Features and Benefits
- High Di-electric strength
- Excellent UV stabilized & weather resistant
- Tracking & Erosion resistant
- Prevent Conductor from Chemical corrosion effected by strong acid, alkali, salt etc.
- Halogen free.
- Flame retardant.
Diagram
Selection Chart – GOT-M (Upto 11kV)
Selection Chart – GOT-M (Upto 11kV)
| Gala Code | Internal Diameter (mm) (Min.) | Thickness (mm) (±10%) | Packaging (Mtr./Roll) |
|---|---|---|---|
| GOT-M 18 | 18.0 | 1.0 | 50 |
| GOT-M 25 | 25.0 | 1.0 | 50 |
| GOT-M 35 | 35.0 | 1.0 | 50 |
Selection Chart – GOT-H (Upto 33kV)
Selection Chart – GOT-M (Upto 33kV)
| Gala Code | Internal Diameter (mm) (Min.) | Thickness (mm) (±10%) | Packaging (Mtr./Roll) |
|---|---|---|---|
| GOT-H 18 | 18.0 | 2.5 | 50 |
| GOT-H 25 | 25.0 | 2.5 | 50 |
| GOT-H 35 | 35.0 | 2.5 | 50 |
Technical Specification
Technical Specification
| PROPERTIES | VALUE | TEST METHOD |
|---|---|---|
| Tensile Strength | 10 N/mm² (MPa) (Min.) | ASTM D638 |
| Ultimate Elongation | 350% (Min.) | ASTM D638 |
| Density | 1.20 ± 0.2 gm/cm³ | ASTM D792 |
| Hardness | 30 ± 5 Shore D | ASTM D2240 |
| Water Absorption | 0.5% (Max.) | ASTM D570 |
| Accelerated Ageing | (90°C for 7 Days) | ASTM D2671 |
| a. Tensile Strength (After Ageing) | ±25% Variation | ASTM D638 |
| b. Ultimate Elongation (After Ageing) | ±25% Variation | ASTM D638 |
| Low Temperature Flexibility (-40°C / 4 hrs.) | No Cracking | ASTM D2671 |
| Continuous Temperature Limit | -45°C to +105°C | — |
| Dielectric Strength | 20 kV/mm (Min.) | ASTM D149 |
| Volume Resistivity | 1 × 10¹⁴ Ohm·cm (Min.) | ASTM D257 |
| Dielectric Constant | 5 (Max.) | ASTM D150 |
Related Products
Polyolefin Overhead Line Cover
Polyolefin Overhead Line Cover
Polyolefin Overhead Line Cover
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