Industrial Silicone Cold Shrink Tubing Wrap Grip Seals
- Reference standards:
- JB/T7829,JB/T 7830
- AC Withstand Voltage for 5 min:
- 8 kV,no breakdown
- Heating Cycles Test in Air:
- 4.5 kV, heating cycles at least 8 h, 95–100 ℃ for at least 2 h, natural cooling for at least 3 h, total 30 heating cycles
- Heating Cycles Test Under Water:
- 4.5 kV, heating cycles at least 8 h, 95–100 ℃ for at least 2 h, natural cooling for at least 3 h, total 30 heating cycles
- AC Withstand Voltage:
- 7.2 kV,4 h no breakdown
Moisture ingress and environmental degradation cause significant downtime in power distribution networks. Traditional heat-applied sleeves introduce fire hazards in classified environments, requiring hot-work permits and specialized torches. Utilizing a pre-expanded silicone cold shrink tube eliminates flame risks while providing immediate moisture barriers across low-voltage utility splices.
Field Performance and Mechanical Sealing
The elastomeric memory of high-grade silicone rubber maintains constant radial pressure over irregular cable geometries. This dynamic tension prevents void formation during thermal cycling.
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Rapid Cold Installation: Technicians pull the inner plastic core to deploy the cold shrink wrap without external heating tools or open flames.
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Hydrophobic Protection: Natural water repellency resists tracking and prevents fungal growth in subterranean vaults.
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Vibration Damping: Resilient material absorbs mechanical shock and cable movement without splitting.
Operational Reliability in Power Distribution
Silicone formulations deliver continuous service across wide temperature spans (-55°C to +200°C), making silicone shrink tubing suitable for aerial lines, marine environments, and direct-burial joints.
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High Dielectric Strength: Resists electrical breakdown up to 20 kV/mm under continuous load.
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Ozone and UV Resistance: Prevents micro-cracking and material hardening from solar exposure.
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Uniform Seal Integrity: Active tension compensates for cable insulation expansion and contraction.
| Parameter | Standard Value |
|---|---|
| Voltage Rating | 0.6/1kV |
| Hardness (Shore A) | 45 ± 5 |
| Tensile Strength | ≥ 10.0 MPa |
| Elongation at Break | ≥ 650% |
| Ingress Protection | IP68 |
Cable Splice Protection
Selecting a durable cold shrink grip ensures dependable insulation for conduit entrances, terminal lugs, and inline splices. Explore certified Cold Shrink Cable Accessories engineered for 0.6/1kV power systems to streamline field retrofits and secure utility infrastructure against environmental intrusion.
0.6/1 kV Fully Cold Shrink Three-Core Terminal – Installation Outline Drawing
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| 0.6/1 kV Five-Core Cold Shrink Terminal – Supporting Drawing | 0.6/1 kV Five-Core Cold Shrink Joint – Supporting Drawing |
Electrical Performance Tests
| No. | Test Item | Standard Requirements |
| 1 | AC Withstand Voltage for 5 min | 8 kV,no breakdown |
| 2 | Heating Cycles Test in Air | 4.5 kV, heating cycles at least 8 h, 95–100 ℃ for at least 2 h, natural cooling for at least 3 h, total 30 heating cycles |
| 3 | Heating Cycles Test Under Water | 4.5 kV, heating cycles at least 8 h, 95–100 ℃ for at least 2 h, natural cooling for at least 3 h, total 30 heating cycles |
| 4 | AC Withstand Voltage | 7.2 kV,4 h no breakdown |
| 5 | Reference Standards | JB/T7829,JB/T 7830 |
Product overview
◆The product is available in single-core, two-core, three-core, four-core, and five-core versions, and has been widely used for low-voltage cable terminations and intermediate connections.
◆Excellent surface hydrophobicity, ensuring the product maintains strong resistance to contamination.
◆Compact size, lightweight, and reliable performance.
◆Application Scope: The product demonstrates excellent cold and heat resistance, making it particularly suitable for high-altitude, cold, humid, salt-spray, and heavily polluted environments.
Installation requires no open flame, making it ideal for flammable and explosive areas such as petroleum, chemical, mining, and tunneling sites.
Technical Data - Model Selection
| Product Type | Model | Conductor Cross-section(mm²) | Product Type | Model | Conductor Cross-section(mm²) |
| 0.6/1 kV Single-Core Cold Shrink Termination | GHD-1LS-1*10-16 | 10-16 | 0.6/1 kV Single-Core Cold Shrink Joint | GHD-1JTLS-1*10-16 | 10-16 |
| GHD-1LS-1*25-50 | 25-50 | GHD-1JTLS-1*25-50 | 25-50 | ||
| GHD-1LS-1*70-120 | 70-120 | GHD-1JTLS-1*70-120 | 70-120 | ||
| GHD-1LS-1*150-240 | 150-240 | GHD-1JTLS-1*150-240 | 150-240 | ||
| GHD-1LS-1*300-400 | 300-400 | GHD-1JTLS-1*300-400 | 300-400 | ||
| 0.6/1 kV Two-Core Cold Shrink Termination | GHD-1LS-2*10-16 | 10-16 | 0.6/1 kV Two-Core Cold Shrink Joint | GHD-1JTLS-2*10-16 | 10-16 |
| GHD-1LS-2*25-50 | 25-50 | GHD-1JTLS-2*25-50 | 25-50 | ||
| GHD-1LS-2*70-120 | 70-120 | GHD-1JTLS-2*70-120 | 70-120 | ||
| GHD-1LS-2*150-240 | 150-240 | GHD-1JTLS-2*150-240 | 150-240 | ||
| GHD-1LS-2*300-400 | 300-400 | GHD-1JTLS-2*300-400 | 300-400 | ||
| 0.6/1 kV Three-Core Cold Shrink Termination | GHD-1LS-3*10-16 | 10-16 | 0.6/1 kV Three-Core Cold Shrink Joint | GHD-1JTLS-3*10-16 | 10-16 |
| GHD-1LS-3*25-50 | 25-50 | GHD-1JTLS-3*25-50 | 25-50 | ||
| GHD-1LS-3*70-120 | 70-120 | GHD-1JTLS-3*70-120 | 70-120 | ||
| GHD-1LS-3*150-240 | 150-240 | GHD-1JTLS-3*150-240 | 150-240 | ||
| GHD-1LS-3*300-400 | 300-400 | GHD-1JTLS-3*300-400 | 300-400 | ||
| 0.6/1 kV Four-Core Cold Shrink Termination | GHD-1LS-4*10-16 | 10-16 | 0.6/1 kV Four-Core Cold Shrink Joint | GHD-1JTLS-4*10-16 | 10-16 |
| GHD-1LS-4*25-50 | 25-50 | GHD-1JTLS-4*25-50 | 25-50 | ||
| GHD-1LS-4*70-120 | 70-120 | GHD-1JTLS-4*70-120 | 70-120 | ||
| GHD-1LS-4*150-240 | 150-240 | GHD-1JTLS-4*150-240 | 150-240 | ||
| GHD-1LS-4*300-400 | 300-400 | GHD-1JTLS-4*300-400 | 300-400 | ||
| 0.6/1 kV Five-Core Cold Shrink Termination | GHD-1LS-5*10-16 | 10-16 | 0.6/1 kV Five-Core Cold Shrink Joint | GHD-1JTLS-5*10-16 | 10-16 |
| GHD-1LS-5*25-50 | 25-50 | GHD-1JTLS-5*25-50 | 25-50 | ||
| GHD-1LS-5*70-120 | 70-120 | GHD-1JTLS-5*70-120 | 70-120 | ||
| GHD-1LS-5*300-400 | 150-240 | GHD-1JTLS-5*150-240 | 150-240 | ||
| GHD-1LS-5*300-400 | 300-400 | GHD-1JTLS-5*300-400 | 300-400 |
