Cable Joints
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Cable joints play an important role in the electrical and electronic systems of any home or industry. They connect the power cables and ensure the flow of continuous electric current through them. Different types of cables are used depending upon their intended application and accordingly the type of requirements will differ. Following are some of the factors that will ensure your cable joint purchase is in line with your requirements.
The joints are available in varied structures to cater to differing modes of connection. The joints are normally used in cables connecting two power sources while the branch joint facilitates branching off. A most suitably structured joint can be purchased if one is sure of the intended application.
There are several accessories that are needed for any electrical system such as cable breakout, insulation tape, inline transition joint, outdoor and indoor transitions, cold shrink tubing, heat shrink tubing and many more and each one of them fulfils a specific function.
Technical Specifications
Technical Specification
| Properties | Value | Standard |
|---|---|---|
| Physical | ||
| Tensile Strength | 12 N/mm2 (Mpa) (min.) | ASTM D638 |
| Ultimate Elongation | 350 % (min.) | ASTM D638 |
| Density | 1.0 ± 0.2 gm/cm³ | ASTM D792 |
| Longitudinal Change | -10% (max.) | ASTM D2671 |
| Hardness | 45 ±10 Shore D | ASTM D2240 |
| Water Absorption | 0.5 % (max.) | ASTM D570 |
| Thermal | ||
| Accelerated Ageing | (150°C for 168 hrs.) | ASTM D2671 |
| Tensile Strength | 12 N/mm² (MPa) (min.) | ASTM D638 |
| Ultimate Elongation | 300 % (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 +110°C | IEC 216 |
| Electrical | ||
| Dielectric Strength (2mm Wall) | 12 kV/mm (min.) | ASTM D149 |
| Volume Resistivity | 1 x 1012 Ohm.cm (min.) | ASTM D257 |
| Dielectric Constant | 5 (max.) | ASTM D150 |
| Weathering : The material from which Medium and Heavy wall tubings are manufactured contains carbon black to protect it from UV light. | ||
Features and Benefits
- Excellent Strain relief
- Provides Cable Entry Sealing.
- Hot melt adhesive for complete environmental protection, and insulation, according to IP 68 (Ingress Protection).
- Excellent resistance to weathering, UV rays, Chemical and Solvents.
- Custom dimensions, thickness, length & colours available on request.
Selection Chart
Selection Chart
| Gala Code | D min (mm) | D max (mm) | T±10%(mm) |
|---|---|---|---|
| GMW 22/6 | 22 | 6 | 2.3 |
| GMW 30/8 | 30 | 8 | 2.6 |
| GMW 33/10 | 33 | 10 | 2.6 |
| GMW 40/12 | 40 | 12 | 2.7 |
| GMW 50/16 | 50 | 16 | 2.7 |
| GMW 65/19 | 65 | 19 | 2.7 |
| GMW 70/22 | 75 | 22 | 2.7 |
| GMW 95/25 | 95 | 25 | 3.0 |
Diagram
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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