Loop Cable Joints MV | 11kV 33kV
Lovink LoviSil® lOOP CABLE JOINTS | MV 6/10 (11) kV – 18/30 (33) kV
Product Code: LoviSil® Loop Cable Joints (Module Selection Required)
Lovink LoviSil® Loop Cable Joint is engineered for medium voltage (MV) underground cable looping applications, allowing two outgoing cables to be connected internally within a single joint without the need for external looping. Designed for networks operating from 6/10 (12) kV up to 18/30 (36) kV, this solution is ideal for 11kV and 33kV distribution systems where space, excavation depth, and installation time are critical factors.
Based on LoviSil® branch joint technology, the loop joint supports a wide range of paper-insulated (PILC/PICAS) and polymeric (XLPE/EPR) cables, including 1-core and 3-core constructions, mixed cable systems, and various armour types. Featuring advanced liquid silicone insulation and modular design, LoviSil® loop joints provide long-term electrical reliability, fast cold-applied installation, and conductor sizes up to 1,000 mm² (dependent on module selection).
GO TO DOWNLOADSMV Loop Joints for Underground Cable Networks (11kV – 33kV)
The Lovink LoviSil® Loop Cable Joint provides a compact and efficient solution for creating continuous loops within medium voltage underground cable systems. By enabling internal looping within a single joint body, it eliminates the need for external cable bends and oversized joint pits, making it particularly suitable for space-restricted and congested installation environments.
Advanced LoviSil® Jointing Technology
Developed from LoviSil® branch joint technology, the loop joint features liquid silicone insulation that remains permanently fluid, filling voids and preventing partial discharge activity. Pre-configured components and a structured installation sequence support consistent workmanship and long-term reliability. The modular design allows the joint to be adapted to varying cable diameters and constructions while maintaining strong mechanical protection through reinforced outer shells and polyurethane resin encapsulation.
Suitable for 6/10 (12) kV – 18/30 (36) kV Cable Systems
LoviSil® loop joints are engineered for operation across 6/10 (12) kV to 18/30 (36) kV networks and are compatible with PILC, PICAS, XLPE, and EPR insulated cables. The system accommodates 1-core and 3-core designs, multiple armour arrangements, and a wide range of conductor sizes, making it ideal for ring main units, urban distribution circuits, renewable energy connections, and network reinforcement projects.
Need the right Cable Joints for your MV cables? Speak to our trusted experts to confirm suitability for your 11kV / 33kV class network application (as well as cable type, insulation, sheath/armour construction and dimensions). Thorne & Derrick International provide technical advice, quotations and fast worldwide delivery for MV joints, medium voltage cable accessories and engineered power solutions.
MV Loop Cable JOINTS – Technical Specifications
Lovink Cable Joints – Selection Guide
lOOP CABLE Joint – Key Benefits
✔ Purpose-designed Loop Cable Joint solution for creating internal cable loops in medium voltage underground networks
✔ Eliminates external looping and oversized joint bays, helping reduce excavation depth, civil works, and installation time
✔ Compatible with PILC, PICAS, XLPE, and EPR insulated cables in mixed and single-system networks
✔ Supports multiple cable constructions including 1-core, 3-core, and 3 × 1-core arrangements with varied armour types
✔ Engineered for MV systems up to 36 kV (6/10 (12) kV to 18/30 (36) kV), suitable for 11kV and 33kV distribution circuits
✔ Advanced sealing system using liquid silicone insulation and polyurethane resin ensures long-term resistance to moisture and soil contamination
✔ Cold-applied installation process enables safe, flame-free jointing with consistent quality on site
✔ Modular design with interchangeable base, branch, cable, and resin components simplifies project planning and inventory management
✔ Designed to minimise partial discharge risk and maintain stable electrical performance throughout service life
✔ Custom cable modules available to accommodate unusual conductor sizes, layouts, and non-standard cable constructions (on request)
Applications
✔ Internal looping of medium voltage cables within a single joint for compact underground network layouts
✔ Ring main units and closed-loop MV distribution systems using PILC / PICAS and XLPE / EPR cables
✔ Utility and private power networks including 11kV and 33kV class installations (subject to correct configuration)
✔ Urban substations, secondary substations, and space-restricted joint bays
✔ Industrial facilities, data centres, renewable energy sites, and infrastructure projects with MV looping requirements
✔ Network reinforcement and circuit sectionalising schemes using underground cable loops
✔ Distribution routes requiring simplified cable routing and reduced excavation footprint
✔ Projects demanding long-term reliability in aggressive soil, high-moisture, or contaminated ground environments
Loop cable JOINTs – Additional Information
LoviSil® Loop Cable Joints for medium voltage networks (commonly associated with 11kV and 33kV class systems) use fluid silicone insulation as the primary dielectric medium. Unlike traditional heat-shrink or cold-shrink technologies, the liquid silicone remains mobile during installation, enabling it to flow around conductors, screens, and connectors. This ensures complete insulation coverage and helps eliminate air pockets that could otherwise lead to partial discharge activity over time.
In loop joint applications, where cables are connected in series or branched within the same circuit, the self-levelling properties of fluid silicone support consistent electrical performance across all connection points. For higher voltage classes up to 36 kV, integrated field control elements and pre-shaped components help maintain stable electric field distribution within the joint body.
✔ Stable electrical performance: fluid silicone delivers uniform insulation across multiple cable connections
✔ Reduced PD risk: void-filling properties help minimise internal discharge activity
✔ Multi-cable compatibility: suitable for looped, branched, and in-line MV circuit layouts (selection dependent)
✔ Long service life: proven materials and design support dependable operation in demanding environments
✔ Installer-friendly system: transparent housing and controlled filling process support visual quality checks
✔ Flame-free installation: no heat application required, suitable for confined, hazardous, and regulated work sites
Lovink Product CatalogueDownload
Lovink Loop Cable Application TableDownload
