Silicone Interlocking Overhead Line Cover
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Gala Silicone Interlocking Overhead Line Covers are made from high quality non-tracking silicone rubber that are designed for field installation over bare conductors. These covers provide a layer of electrical insulation for Phase-to-Phase and Phase-to-Ground protection from bird and animals. The GSIOC provides electrical insulation, UV resistance and tracking resistance. Provide Insulation upto 33 kV.
Features and Benefits
- High Di-electric strength
- Tracking & Erosion resistant
- Excellent UV stabilized & weather resistant
- Operating temperature ranges from -70°C to +180°C
- Prevent Conductor from Chemical corrosion effected by strong acid, alkali, salt etc.
- Halogen free
- Easy to install
Diagram
Selection Chart – GSIOC-M (Upto 12kV)
Selection Chart – GSIOC-M (Upto 12kV)
| Gala Code | Conductor Dia. (mm) | Thickness (mm) | Packaging (Mtr./Roll) |
|---|---|---|---|
| GSIOC-M 12 | Up to 12 | 2 | 15 |
| GSIOC-M 15 | Up to 15 | 2 | 15 |
| GSIOC-M 18 | Up to 18 | 2 | 15 |
| GSIOC-M 20 | Up to 20 | 2 | 15 |
| GSIOC-M 24 | Up to 24 | 2 | 15 |
Selection Chart – GSIOC-H ( Upto 33kV )
Selection Chart – GSIOC-H (Upto 12kV)
| Gala Code | Conductor Dia. (mm) | Thickness (mm) | Packaging (Mtr./Roll) |
|---|---|---|---|
| GSIOC-H 12 | Up to 12 | 2.7 | 15 |
| GSIOC-H 15 | Up to 15 | 2.7 | 15 |
| GSIOC-H 18 | Up to 18 | 2.7 | 15 |
| GSIOC-H 20 | Up to 20 | 2.7 | 15 |
| GSIOC-H 24 | Up to 24 | 2.7 | 15 |
Selection Chart – GSDIOC ( Upto 33kV )
Selection Chart – GSDIOC ( Upto 33kV )
| Gala Code | Conductor Dia. (mm) | Thickness (mm) | Packaging (Mtr./Roll) |
|---|---|---|---|
| GSDIOC-10 | Up to 10 | 3.8 | 15 |
Technical Specification
Technical Specification*
| PROPERTIES | TEST METHOD | TYPICAL VALUE |
|---|---|---|
| Physical | ||
| Tensile Strength | ASTM D638 | 4 N/mm² (Min.) |
| Elongation | ASTM D638 | 200% (Min.) |
| Density | ASTM D792 | 1.10 – 1.45 gm/cm³ |
| Hardness | ASTM D2240 | 65 ± 5 Shore A |
| Low Temp. Flexibility (-20°C / 4 Hrs.) | ASTM D2671 | No Cracking |
| Water Absorption (24 Hrs @ 23°C) | ASTM D570 | 0.5% (Max.) |
| Thermal | ||
| Thermal Ageing | ASTM D2671 | 150°C for 168 Hrs. |
| Tensile Strength (After Ageing) | ASTM D638 | 3 N/mm² (Min.) |
| Elongation (After Ageing) | ASTM D638 | 100% (Min.) |
| Electrical | ||
| Dielectric Strength | ASTM D149 | 21 kV/mm (Min.) |
| Volume Resistance | ASTM D257 | 1 × 10¹⁰ Ohm·cm (Min.) |
| Tracking & Erosion Resistance | ASTM D2303 |
No tracking or erosion to top surface or flame failure after: • 1 hr at 2.5 kV • 1 hr at 2.75 kV • 1 hr at 2.5 kV • 1 hr at 3.0 kV • 20 min at 3.25 kV |
* The above mentioned values are typical analytical values obtained on material when tested as per applicable standards under controlled laboratory conditions and should not be construed as product specifications.
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