The premolded stress cone, designed using geometrical electric field control and combine with sufficient interface pressure, ensures uniform electric field distribution and long-term reliable operation;
With sufficient electrical margin;
Have excellent sealing performance with armor tape as normalMature design with long-term successful service experience.
Application
• Designed for the connection of MV power cables.
• Suitable for underground tunnels, direct burial installations (protective box recommended), and installation on cable racks or supports.
• Applicable for connecting different cable cross-sections within a certain range of MV cable systems.
Compatible Cables
• Cable type: : XLPE or other polymer-insulated, single or three cores MV power cables;
• Metallic Screen: Copper tape, Copper wires, Al wires, Al foil tape and etc
Product Application Standards
• Applicable standards: IEC 60502-4，GB/T 12706.4
Technical Parameters
| Item | Technical Specifications |
Voltage Level（kV） | 18/30 (36) kV |
Rated Voltage (U₀ / U) | 18/30kV |
Highest System Voltage (Uₘ) | 36kV |
Partial Discharge Test (pC) | At 1.73 U₀: no detectable PD above the specified sensitivity |
Power Frequency Withstand Voltage (KV) | At 4.5 U₀ for 5 min, no breakdown or flashover |
Lightning Impulse Withstand Voltage | 170 |
Overall Dimensions (L × Ø) | 520*81 |
Net Weight (excluding cable) | 15 |
Optional Solutions
• The connector between cable conductors could be crimp or mechanical type.
• Optional protective box according to installation conditions;
• Sectionalized Joint design can be used for longer circuit with outer earthing system.
Operating Conditions
• Ambient temperature: –45 °C to +45 °C
• Installation altitude: No limitation.
Storage Conditions
• Optimal Storage Temperature: 10°C to 25°C
• Indoor with dry and clean environment, keep sealing and avoiding ≥4 layers overlap.
Straight-Through Joint Selection Guide(Recommended selection based on cable insulation diameter)
Voltage Level （kV） | Product Type | Conductor Size Range (mm²) | Cable Insulation Diameter (mm) | Protective Housing |
18/30/36 | JLS-18/30-1x50~120 | 50~120 | 30.9~52.6 | W/O protective housing |
18/30/36 | JLS-18/30-1x150~300 | 150~300 | 37.2~43.2 | |
18/30/36 | JLS-18/30-1x400~630 | 400~630 | 46.4~52.6 | |
18/30/36 | JLS-18/30-3x50~120 | 50~120 | 30.9~52.6 | |
18/30/36 | JLS-18/30-3x150~300 | 150~300 | 37.2~43.2 | |
18/30/36 | JLS-18/30-3x400~630 | 400~630 | 46.4~52.6 |
Note:If the Termination's specification is outside the above ranges can be customized based on cable section and insulation diameter.
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