HEATSHRINK JOINTING KIT
3M™ Heat Shrink Cable Jointing / Splicing Kits deliver long-term operational reliability and mechanical flexibility for high-voltage power distribution networks. Designed for splicing single-core and three-core extruded dielectric shielded cables, these kits provide a lightweight, compact, and completely moisture-sealed jointing solution.
Manufactured at 3M’s state-of-the-art facility in Pune, each kit comes fully equipped with specialized heat-shrinkable tubing, stress control molded components, sealing mastics, and all necessary hardware for a complete, field-proven joint.
Key Features & Benefits
- High Voltage Coverage: Suitable for medium to high-voltage cable networks operating at 11 kV, 22 kV, 33 kV, and up to 66 kV.
- Wide Conductor Range: Accommodates large cable cross-sections up to 1200 sq. mm for both single-core and 3-core cable runs.
- Effective Stress Control: Features high-permittivity stress-control tubes and mastics that dissipate electrical stress concentrations over the insulation screen cut point.
- Hermetic Environmental Seal: Integrated hot-melt adhesive linings and high-grade sealants create a moisture-proof, water-tight seal resistant to soil chemicals and ambient humidity.
- Compact & Rugged Build: Lightweight, low-profile design fits easily into tight trenches, cable trays, and underground duct banks while offering superior impact and abrasion resistance.
Technical Specifications Summary
| Specification | Technical Details |
|---|---|
| Voltage Ratings | 11 kV / 22 kV / 33 kV / 66 kV (High Voltage / HT) |
| Cable Size Range | Up to 1200 mm² |
| Core Configurations | 1-Core and 3-Core |
| Conductor Material | Aluminium and Copper |
| Cable Insulation Types | XLPE and PVC (Armored or Unarmored) |
| Technology | Heat Shrink (Cross-linked polyolefin) |
| Origin | 3M India Manufacturing Division, Pune |
Primary Applications
- Underground Cable Splicing: Straight and branch jointing of underground high-voltage power cables in urban utilities and industrial grids.
- Substation & Infrastructure Grid: Connecting primary power feeds in renewable energy parks, switchyards, and transmission lines.
- Cable Repair & Maintenance: Restoring structural and electrical integrity in damaged HT power cables.