JLS-35 35 kV Cold Shrinkable Cable Joint Kit
JLS-35 35 kV Silicone Rubber Cold Shrinkable Straight-through Joint for XLPE Power Cables
Product Features
• Manufactured from liquid silicone rubber with excellent tear resistance, tracking resistance, corrosion resistance and electrical properties
• Integrated stress control and insulation design effectively avoids interlayer air gaps and reduces installation steps
• High elasticity of the silicone rubber helps eliminate defects caused by the breathing effect of cables
• Equipped with constant force springs, eliminating the need for welding of the earthing and shielding connection
• Red, yellow and green sealing tubes provide clear phase identification and easy phase separation
• Cold-shrink design, no open flame required, ensuring easy, safe and reliable installation
- Zhizheng
- Hubei
- Information
Product Performance Test Results
| Test Item | Standard Requirement | Test Result | Evaluation |
|---|---|---|---|
| 1 min Power Frequency Voltage Test | 45 kV, 1 min, no flashover, no breakdown | 45 kV, 1 min – All phases of the combined sample showed no flashover or breakdown | Pass |
| Partial Discharge Test | Discharge ≤ 20 pC at 13 kV | At 13 kV – Partial discharge of combined sample: 2.0 pC, 1.8 pC, 1.9 pC (per phase) | Pass |
| Load Cycle Test | Conductor heated to 90°C–95°C for 5 hours, cooled for 3 hours (8-hour cycle), total of 3 cycles | Three load cycles completed in accordance with standard requirements | Pass |
| Partial Discharge Test (After Load Cycle Test) | Discharge ≤ 20 pC at 13 kV | At 13 kV – Partial discharge of combined sample: ≤2.0 pC, 1.9 pC, 2.0 pC (per phase) | Pass |
| Impulse Voltage Test | 105 kV, 10 shots for both positive and negative polarity, no flashover or breakdown | 105 kV – All phases of the combined sample withstood 10 shots per polarity without flashover or breakdown | Pass |
| 15 min DC Voltage Test (Negative Polarity) | -52 kV, 15 min, no flashover, no breakdown | -52 kV, 15 min – All phases of the combined sample showed no flashover or breakdown | Pass |
| 4 h Power Frequency Voltage Test | 35 kV, 4 h, no flashover, no breakdown | 35 kV, 4 h – All phases of the combined sample showed no flashover or breakdown | Pass |
| Appearance Inspection | No crack, no deformation | No cracks or deformation observed | Pass |
Note: All test data were conducted by the Electrical Equipment Quality Inspection and Testing Center of the Power Industry.
JLS-35 Series Specification Sheet
| Model/Specification | Description | Applicable Cable Specifications (mm²) |
|---|---|---|
| JLS-35/1.1 | 35 kV Cold shrinkable XLPE Cable Straight Joint Kit Single Core | 25–50 |
| JLS-35/1.2 | 35 kV Cold shrinkable XLPE Cable Straight Joint Kit Single Core | 70–120 |
| JLS-35/1.3 | 35 kV Cold shrinkable XLPE Cable Straight Joint Kit Single Core | 150–240 |
| JLS-35/1.4 | 35 kV Cold shrinkable XLPE Cable Straight Joint Kit Single Core | 300–400 |
| JLS-35/3.1 | 35 kV Cold shrinkable XLPE Cable Straight Joint Kit Three Core | 25–50 |
| JLS-35/3.2 | 35 kV Cold shrinkable XLPE Cable Straight Joint Kit Three Core | 70–120 |
| JLS-35/3.3 | 35 kV Cold shrinkable XLPE Cable Straight Joint Kit Three Core | 150–240 |
| JLS-35/3.4 | 35 kV Cold shrinkable XLPE Cable Straight Joint Kit Three Core | 300–400 |
