Heat Shrinkable Pole Cap
Pole Cap is Heat Shrink Cap, used to cover the top of the Wooden Power Pole & to protect it from ingress of water / moisture, thereby increasing Pole life. The caps are manufactured from high quality Cross-linked Polyolefin material.
Features
- Hot melt adhesive lining provides 100% environmental sealing against weathering, moisture, contamination and adverse environmental conditions according to IP 68.
- Resistance to UV rays & Ozone.
- Versatile and cost effective, as 5 sizes of Pole Cap covers Pole dia. from 140 mm to 460 mm.
- Service life of Pole Cap is more than 30 years.
- Easy installation on concrete, wood, steel or composite poles in minutes.
Benefits
- Once the heat applied, adhesive filled inside the top surface (optional) melts & penetrates into the pole cracks and cavities, thereby reinforces the top of the pole.
- Provides excellent Impact resistance, i.e. when a Pole end covered with Pole cap hits on a sharp edge, it would not crack.
- Prevents birds from perching (woodpecker damage) or nesting on top of round tubular & solid poles. Protects the top of the pole from damage caused by freeze and thaw conditions.
- Eliminates outages from flash-over & electrocutions.
- No maintenance after installation.
Diagram
Selection Chart
| Code No. | Ds (Min.) | Df (Max.) | Ls (Min.) | Tf (± 10%) | Pole Range |
|---|---|---|---|---|---|
| GPC 801S | 190 | 125 | 220 | 4.0 | 140 – 165 |
| GPC 801 | 230 | 125 | 220 | 4.0 | 140 – 200 |
| GPC 901 | 310 | 120 | 220 | 7.0 | 140 – 280 |
| GPC 1001 | 400 | 204 | 220 | 6.0 | 230 – 360 |
| GPC 1101 | 500 | 200 | 220 | 6.0 | 230 – 460 |
D: Internal Diameter | s: as supplied | f: after free recovery
Technical Specification
| Properties | Value | Standard |
|---|---|---|
| Tensile Strength | 12 N/mm² (MPa) (min.) | ASTM D638 |
| Ultimate Elongation | 350% (min.) | ASTM D638 |
| Water Absorption | 0.2% (max.) | ASTM D570 |
| Accelerated Ageing (120°C for 500 Hrs.) | ASTM D2671 | |
| Tensile Strength | 11 N/mm² (MPa) (min.) | ASTM D638 |
| Ultimate Elongation | 300% (min.) | ASTM D638 |
| Heat Shock (250°C for 30 Min.) | No Cracking or Flowing | ESI 09-11 |
| Continuous Temperature Limit | -40°C to +100°C | IEC 216 |
| Dielectric Strength | 12 KV/mm. (min.) | ASTM D149 |
| Volume Resistivity | 1 x 10¹⁴ Ohm.cm (min.) | ASTM D257 |
| Dielectric Constant | 5 (max.) | ASTM D150 |
Installation Instructions
Polecap supplied by us are in an expanded form. When heated above 1250c they attempt to shrink back to their original dimensions, conforming to the objects they cover. Use a propane (preferred) or butane gas torch. Adjust the torch to obtain a soft blue flame with a yellow tip. Pencil-like blue flames should be avoided. Keep the flame moving continuously to avoid scorching the material.
Pole Preparation :
If necessary, cut the Pole end so that it is straight and even. Clean and de-grease the Pole surface that will come into contact with sealant. (Fig. 1)
Installation of Polecap :
Place the Polecap over the top of the Pole.(Fig. 2)
Shrink the Polecap into place, starting at the closed end and working towards the Pole Adhesive will be visible at ends. (Fig. 3)
Properly installed Polecap will be smooth and conform to Pole. Allow the cap to cool before applying any mechanical strain. Installation of Pole cap completed. (Fig. 4)
The Best & Cost-effective Solution for long term maintenance of Poles :
- Wood shrinks when losing moisture from the cell walls & swells when gaining moisture in the cell walls. This shrinking & swelling can result in warping, splitting, cracking mainly from top surface; which can cause gaps & loosening of Tool Handles. Wooden Poles with Pole Cap eliminates such problems & avoids extra cost of Clamps, used to tighten the gaps; thereby avoiding long term maintenance of wooden poles.
- Use of Polecap typically adds some nominal percentage to the total cost of New Pole replacement. Precaution is always better than cure.
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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