Cold Shrink Tubing Termination Types And Applications
- Power Frequency Withstand Voltage:
- 39 kV, 5 min, no breakdown
- Partial Discharge Test:
- Partial Discharge Magnitude≤ 10 pC at 15 kV
- Impulse Voltage Test:
- 95 kV, 10 positive and 10 negative impulses, no breakdown
- Constant Voltage Load Cycling Test (in Air):
- 23 kV, conductor temperature 95–100 ℃, total 60 cycles, no breakdown, no flashover
- Thermal Stability Test (185 mm² Conductor):
- 23.4 kA, 2 s, twice, no visible damage
- Dynamic Stability Test:
- 82.6 kA, ≥ 10 ms, no visible damage
- Moisture Test (Indoor):
- 11 kV, 300 h, no breakdown, no flashover
- Salt Spray Test (Outdoor):
- 11 kV, 1000 h, no breakdown, no flashover
Medium Voltage Termination Classifications
Medium-voltage power cable networks demand geometric stress control and void-free insulation restoration at metallic screen cutoffs. Hangda Electric designs Cold Shrink Cable Accessories using high-grade silicone elastomer that delivers constant radial active pressure over extruded solid dielectric cables.
Environmental Design Configurations
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Indoor units: Tailored for compact air-insulated switchgear, transformer connection boxes, and substations where non-tracking sheds protect against surface leakage currents.
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Outdoor units: Equipped with extended alternate weather sheds to withstand solar ultraviolet exposure, heavy precipitation, and airborne salt fog contamination.
Deploying pre-expanded cold shrink tubing ensures continuous mechanical tension along cross-linked polyethylene jackets, completely sealing interfaces against moisture ingress.
Industrial Use Cases
Field-proven cold shrink termination assemblies solve installation challenges across rigorous power distribution environments:
Sector Implementations
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Renewable collector grids: Solar inverter blocks and wind turbine towers operate under fluctuating loads where dynamic elasticity prevents void creation.
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Petrochemical plants: Hazardous zones restrict open flames, making hot-air heat guns unfeasible and favoring cold shrink installation.
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Underground vaults: Confined manholes and utility tunnels require rapid placement to avoid water exposure on exposed conductors.
Factory Verification and Performance Ratings
Each production lot of cold shrinkable tube bodies undergoes strict screening for low partial discharge and high tracking resistance under international testing protocols.
| Parameter | Specification Rating | Standard Verification |
|---|---|---|
| Voltage Rating | 8.7 / 15 kV | IEC 60502-4 |
| AC Withstand (1 min) | 39 kV | IEEE 48 |
| Lightning Impulse (BIL) | 95 kV | IEC 60502-4 |
| Operating Temperature | -50°C to +130°C | Factory Certified |
8.7/15 kV Fully Cold Shrink Three-Core Terminal – Installation Outline Drawing
Electrical Performance Tests
| No. | Test Item | Standard Requirements |
| 1 | Power Frequency Withstand Voltage | 39 kV, 5 min, no breakdown |
| 2 | Partial Discharge Test | Partial Discharge Magnitude≤ 10 pC at 15 kV |
| 3 | Impulse Voltage Test | 95 kV, 10 positive and 10 negative impulses, no breakdown |
| 4 | Constant Voltage Load Cycling Test (in Air) | 23 kV, conductor temperature 95–100 ℃, total 60 cycles, no breakdown, no flashover |
| 5 | Thermal Stability Test (185 mm² Conductor) | 23.4 kA, 2 s, twice, no visible damage |
| 6 | Dynamic Stability Test | 82.6 kA, ≥ 10 ms, no visible damage |
| 7 | Moisture Test (Indoor) | 11 kV, 300 h, no breakdown, no flashover |
| 8 | Salt Spray Test (Outdoor) | 11 kV, 1000 h, no breakdown, no flashover |
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.
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| 8.7/15 kV Single-Core Cold Shrink Indoor Termination – Installation Drawing | 8.7/15 kV Three-Core Cold Shrink Outdoor Termination – Installation Drawing | 8.7/15 kV Three-Core Cold Shrink Outdoor Termination – Supporting Drawing | 8.7/15 kV Three-Core Cold Shrink Joint – Supporting Drawing |
Technical Data - Model Selection
| Product Type | Model | Conductor Cross-section(mm²) | Product Type | Model | Conductor Cross-section(mm²) | |||
| 8.7/15 kV Three core cold shrink indoor terminal | GHD-15HNLS-3*25-50 | 25-50 | 8.7/15 kV Single core cold shrink indoor terminal | GHD-15HNLS-1*25-50 | 25-50 | |||
| GHD-15HNLS-3*70-120 | 70-120 | GHD-15HNLS-1*70-120 | 70-120 | |||||
| GHD-15HNLS-3*150-240 | 150-240 | GHD-15HNLS-1*150-240 | 150-240 | |||||
| GHD-15HNLS-3*300-400 | 300-400 | GHD-15HNLS-1*300-400 | 300-400 | |||||
| 8.7/15 kV Three core cold shrink outdoor terminal | GHD-15HWLS-3*25-50 | 25-50 | 8.7/15 kV Single core cold shrink outdoor terminal | GHD-15HWLS-1*25-50 | 25-50 | |||
| GHD-15HWLS-3*70-120 | 70-120 | GHD-15HWLS-1*70-120 | 70-120 | |||||
| GHD-15HWLS-3*150-240 | 150-240 | GHD-15HWLS-1*150-240 | 150-240 | |||||
| GHD-15HWLS-3*300-400 | 300-400 | GHD-15HWLS-1*300-400 | 300-400 | |||||
| 8.7/15 kV Three core cold shrink intermediate joint | GHD-15JTLS-3*25-50 | 25-50 | 8.7/15 kV Single core cold shrinkintermediate joint | GHD-15JTLS-1*25-50 | 25-50 | |||
| GHD-15JTLS-3*70-120 | 70-120 | GHD-15JTLS-1*70-120 | 70-120 | |||||
| GHD-15JTLS-3*150-240 | 150-240 | GHD-15JTLS-1*150-240 | 150-240 | |||||
| GHD-15JTLS-3*300-400 | 300-400 | GHD-15JTLS-1*300-400 | 300-400 | |||||
