Heat Shrink Non Tracking Tubes
Insultube – Nontracking is used in Medium Voltage Cable Joints and Terminations up to 36 KV. The tubes are produced from high quality non-tracking cross-linked polyolefin material that offers exceptional insulation and long-term service reliability.
General Properties
- Excellent anti-tracking performance and erosion resistance.
- Halogen free, flame retardant.
- Good weather / UV resistance.
- High resistance to chemical, solvent, corrosion and fungus.
- Customised dimension, thickness, length & colour available on request.
Diagram
Selection Chart
| Code | D Min (mm) | d Max (mm) | T ±10% (mm) | Spool Length (mtr) |
|---|---|---|---|---|
| GAT 25/8 | 25 | 8 | 2.5 | 30 |
| GAT 35/12* | 35 | 12 | 2.7 | 30 |
| GAT 45/16* | 45 | 16 | 3.0 | 30 |
| GAT 55/20* | 55 | 20 | 3.0 | 30 |
| GAT 65/25 | 65 | 25 | 3.0 | 15 |
| GAT 75/28 | 75 | 28 | 3.0 | 15 |
| GAT 100/38 | 100 | 38 | 3.0 | 15 |
| GAT 120/45 | 120 | 45 | 2.5 | 15 |
| Code | D Min (mm) | d Max (mm) | T ±10% (mm) | Spool Length (mtr) |
|---|---|---|---|---|
| GAT(HW) 25/8 | 25 | 8 | 5 | 1.5 |
| GAT(HW) 35/12 | 35 | 12 | 5 | 1.5 |
| GAT(HW) 55/18 | 55 | 18 | 5 | 1.5 |
| GAT(HW) 65/25 | 65 | 25 | 5 | 1.5 |
| GAT(HW) 85/30 | 85 | 30 | 5 | 1.5 |
| GAT(HW) 100/38 | 100 | 38 | 5 | 1.5 |
| GAT(HW) 120/45 | 120 | 45 | 5 | 1.5 |
| GAT(HW) 140/50 | 140 | 50 | 5 | 1.5 |
Technical Specification
| Properties | Value | Standard |
|---|---|---|
| Physical | ||
| Tensile Strength | 10 N/mm² (MPA)(min.) | ASTM D638 |
| Ultimate Elongation | 350% (Min.) | ASTM D638 |
| Longitudinal Change | -10% (Max.) | ASTM D2671 |
| Hardness | 45 ± 10 Shore D | ASTM D2240 |
| Water Absorption | 0.5 % (max.) | ASTM D570 |
| Thermal | ||
| Accelerated Ageing | (120°C for 500 Hrs) | ASTM D2671 |
| Tensile Strength | 8 N/mm² (Mpa) (min.) | ASTM D 638 |
| Ultimate Elongation | 250% (Min.) | ASTM D638 |
| Low Temperature Flexibility (-40°C for 4 Hrs.) | No Cracking | ASTM D2671 |
| Heat Shock (250°C for 30 Min.) | No Cracking or flowing | ESI 09-11 |
| Shrink Temperature | 125°C | IEC 216 |
| Continuous Temperature limit | -40°C to +100°C | IEC 216 |
| Electrical | ||
| Dielectric Strength | 15 KV/mm. (Min.) | ASTM D149 |
| Volume Resistivity | 1 x 10¹⁴ Ohm.cm (min.) | ASTM D257 |
| Dielectric Constant | 5 (Max.) | ASTM D150 |
| Resistant to track & erosion | No Tracking, erosion or flame failure upto 3.25 KV for 20 min. | ASTM D2303 |
Certificates
FAQs
1. What is a Heat Shrink Shroud?
A Heat Shrink Shroud is a protective sleeve made from cross-linked polymer material that shrinks when heat is applied. It provides insulation, sealing, and mechanical protection for cables, joints, and terminations.
2. How does a Heat Shrink Shroud work?
When heat is applied using a heat gun or torch, the shroud shrinks uniformly and tightly wraps around the cable or joint, creating a secure and sealed covering.
When heat is applied using a heat gun or torch, the shroud shrinks uniformly and tightly wraps around the cable or joint, creating a secure and sealed covering.
3. What material is Heat Shrink Shroud made of?
It is typically made from cross-linked polyolefin material, often containing carbon black for UV resistance and weather protection.
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