Home > Products > Feed-In Cable Joints MV | 11kV 33kV Cables

Contact us

Get quote

Feed-In Cable Joints MV | 11kV 33kV Cables

Lovink LoviSil® Feed-In Cable Joint | MV 6/10 (12) kV – 18/30 (36) kV
Lovink LoviSil Medium Voltage Feed-In Cable Connection
MV Joints for Polymeric & Paper Cables (XLPE PILC)
MV Feed-In Cable Joint 11kV 33kV
Lovink Enertech Logo

Lovink LoviSil® Feed-In Cable Joint | MV 6/10 (12) kV – 18/30 (36) kV

Lovink Enertech Logo

Product Code: LoviSil® Feed-In Cable Joint (Module Selection Required)

12kV Feed-In Cable Joints Available
24kV Feed-In Cable Joints Available
36kV TFeed-In Cable Joints Available

Lovink LoviSil® Feed-In Cable Joint is purpose-designed for medium voltage (MV) network integration, enabling the direct connection of renewable or distributed power sources into existing underground cable systems without the need for additional switchgear or substations. Suitable for systems rated from 6/10 (12) kV up to 18/30 (36) kV, LoviSil® feed-in joints are widely specified for networks commonly referred to as 11kV and 33kV class.
Designed to accommodate connections between incoming generation cables and established MV distribution circuits, the joint supports polymeric (XLPE/EPR) and paper-insulated (PILC/PICAS) cable types, including single-core and selected multi-core configurations. Conductor sizes up to 1,000 mm² can be supported depending on the joint module and application requirements.

SEE TECHNICAL SPECIFICATIONS

MV Feed-In Joints for Polymeric & Paper Cables (XLPE PILC)

The Lovink LoviSil® Feed-In Cable Joint is a specialist medium voltage (MV) jointing solution designed to connect embedded generation and renewable energy sources directly into existing underground distribution networks. Unlike conventional jointing arrangements that require additional switchgear or substation infrastructure, the feed-in joint enables a compact, underground connection point within the cable system itself.

LoviSil® Fluid Silicone Technology

At the core of the design is LoviSil® liquid silicone insulation, which remains fluid within the joint body to fully encapsulate conductors, connectors and stress control components. This void-free insulation method minimises the risk of partial discharge and supports long-term dielectric reliability in demanding underground environments. Combined with a durable outer shell and resin-based mechanical protection, the joint delivers dependable performance in moisture-prone or contaminated soil conditions. Installation is flame-free, requires only standard tooling, and avoids heat shrink or soldered components.

6/10 (12) kV – 18/30 (36) kV Networks

Suitable for 6/10 (12) kV through to 18/30 (36) kV systems, LoviSil® Feed-In Joints are commonly specified for networks referred to as 11kV and 33kV class. The joint accommodates a wide range of polymeric (XLPE/EPR) and paper-insulated (PILC/PICAS) cable types, including large conductor cross-sections up to 1,000 mm² (subject to configuration). This makes the system particularly well suited to wind farms, solar parks, industrial generation facilities and other distributed power schemes requiring reliable grid integration.

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.

Contact Our Experts

MV FEED-IN Cable Joint – Technical Specifications

Lovink LoviSil® Feed-In Cable Joint (MV) – Technical Specifications

Primary Keyword Feed-In Cable Joint (Medium Voltage Renewable Integration Joint)
Voltage Rating 6/10 (12) kV – 18/30 (36) kV (suitable for 11kV and 33kV class networks)
Application Type Direct connection of distributed generation or renewable source cables into existing MV distribution circuits
Cable Insulation Types Polymeric (XLPE / EPR) and Paper-Insulated (PILC / PICAS)
Core Configuration Single-core (standard feed-in configuration) with compatible branch-style arrangement
Conductor Size Range Up to 1,000 mm² (dependent on joint size, connector configuration and cable module)
Connector System Specially developed feed-in connector enabling connection of smaller source cables to larger radial or ring main cables
Installation Method Cold-applied, flame-free system with pre-installed components (no heat shrinking or soldering required)
Insulation & Sealing System LoviSil® liquid silicone insulation with polyurethane resin encapsulated outer housing
Standards & Testing Tested in accordance with HD 629 (CENELEC) and related MV jointing standards; water pressure tested to 2 bar
  • Final joint configuration depends on source cable size, main cable size, insulation type, sheath diameter and project requirements.
  • Correct module selection (base module, cable module and resin module) is essential to achieve long-term dielectric performance.
  • Connector selection must match the conductor cross-sections of both the incoming generation cable and the existing MV network cable.
  • Suitability for 11kV and 33kV systems should be confirmed against network design, protection coordination and DNO specifications.

Application Range (Feed-In Module Guide)

Module Main Network Cable Main Conductor Size (mm²) Feed-In Conductor Size (mm²) Max Joint Ø (mm)
M75 Polymeric / Paper (1 core radial or ring) 95 – 630mm² 35 – 240mm² 72
Polymeric / Paper (3 × 1 core system) 95 – 400mm² 35 – 185mm² 72
M85 Polymeric / Paper (1 core radial or ring) 400 – 1,000mm² 95 – 300mm² 82
Polymeric / Paper (3 × 1 core system) 240 – 800mm² 70 – 240mm² 82
M105 Polymeric / Paper (1 core high-load feeder) 630 – 1,000mm² 120 – 400mm² 105
Polymeric / Paper (3 core equivalent system) 300 – 500mm² 95 – 300mm² 105
MK125 Large 3 × 1 core transmission feeders 400 – 800mm² 150 – 500mm² 120
  • Feed-in joint selection is based on both the existing MV network cable size and the incoming generation cable size.
  • Actual suitability depends on conductor material, insulation type (XLPE, EPR, PILC, PICAS), sheath diameter and installation environment.
  • Special connector combinations are available to accommodate differing conductor cross-sections between main and source cables.
  • For 11kV and 33kV distribution systems, final configuration should align with network operator requirements and protection design.

Construction & Installation Notes (MV Feed-In Joint)

Insulation Technology LoviSil® liquid silicone insulation providing void-free encapsulation of connectors and stress control components
Mechanical Protection Robust outer shell system combined with polyurethane resin for long-term protection against moisture ingress and aggressive soil conditions
Feed-In Connector Arrangement Special branch-style connector configuration allowing integration of generation cables into existing MV radial or ring feeders
Installation Method Cold-applied, flame-free installation with pre-engineered components to support consistent on-site build quality
Tools Required Standard MV jointing tools only; no heat shrinking, soldering or specialist heating equipment required
Modular Configuration Base module, cable modules and resin module selected according to main cable and feed-in cable dimensions

For optimal performance in 11kV and 33kV MV feed-in applications, confirm the following before specification: main network cable size, incoming generation cable size, conductor material, insulation type (XLPE, EPR, PILC or PICAS), screen/sheath construction, armour type, outer diameter and installation environment.
Accurate data ensures correct Feed-In Cable Joint module and connector selection for safe, long-term integration into the distribution network.

Lovink Cable Joints – Selection Guide

Lovink MV Cable Joints (Quick Guide)

Cable Joint Type What it does (summary) Voltage Class Link
Transition Cable Joints MV transition connections between paper-insulated cables (PILC/PICAS) and polymeric cables (XLPE/EPR) for mixed networks and upgrades. 6/10 (12) kV – 18/30 (36) kV
(11kV / 33kV class)		 View
Straight Cable Joints Straight-through MV joint for cable-to-cable connections (same cable type): polymeric-to-polymeric (XLPE/EPR) or paper-to-paper (PILC/PICAS), selection dependent. 6/10 (12) kV – 18/30 (36) kV
(11kV / 33kV class)		 View
Stop-End Joints MV pot-end / termination solution that converts a standard joint into a fully insulated, sealed stop-end for energised cable systems (polymeric and selected paper-insulated). 6/10 (12) kV – 18/30 (36) kV
(11kV / 33kV class)		 View
Branch Joints Creates MV tees / take-offs on distribution networks to form branch connections for 11kV and 33kV class systems (module selection dependent). 6/10 (11) kV – 18/30 (33) kV
(modules also shown up to 36kV)		 View
Cable Repair Joints Repairs MV power cables where limited damage has occurred by replacing only the affected section (supports PILC/PICAS and XLPE/EPR, selection dependent). 6/10 (12) kV – 18/30 (36) kV
(11kV / 33kV class)		 View
Extended Resin Cable Joints Extended outer-shell MV straight-through / transition joint providing additional bonding space and enhanced sealing for buried/ducted/high-moisture installs (PILC/PICAS and XLPE/EPR, selection dependent). 6/10 (12) kV – 18/30 (36) kV
(11kV / 33kV class)		 View
Feed-In Cable Joints Enables direct connection of renewable or distributed power sources into existing underground MV cable systems (supports XLPE/EPR and PILC/PICAS, selection dependent). 6/10 (12) kV – 18/30 (36) kV
(11kV / 33kV class)		 View
Loop Cable Joints Internal looping joint for underground MV distribution, allowing two outgoing cables to be connected within one joint (space/time-saving vs external looping). 6/10 (12) kV – 18/30 (36) kV
(11kV / 33kV class)		 View
Oil Refill Cable Joints (PILC) Specialist MV joint for paper-insulated lead covered (PILC) cables, using an oil manifold + non-return valve to connect to an external reservoir and keep the paper dielectric oil-saturated. 6/10 (12) kV – 18/30 (36) kV
(11kV / 33kV class)		 View
Crossbonding Cable Joints Controls induced screen voltages and reduces circulating currents in long single-core MV circuits by integrating a flexible copper crossbonding conductor within the joint body. 12kV – 36kV
(commonly 11kV / 33kV networks)		 View
Compact Cable Joints Compact straight-through MV joint for polymeric insulated single-core cables (XLPE/EPR), using cold-shrink technology and a sealed resin-filled housing for moisture protection in confined installs. 6/10 (12) kV & 12/20 (24) kV
(often referenced as 11kV / 33kV class)		 View
  • Voltage class references (e.g., “11kV / 33kV”) should always be matched to the actual cable system rating and the correct joint/module selection.
  • Final suitability depends on cable construction and dimensions (insulation type, sheath/armour, conductor size, and installation environment).

FEED-IN Cable Joint – Key Benefits

✔ Advanced feed-in joint solution engineered for secure connection of MV distribution cables to network systems

✔ Suitable for modern polymeric insulated cables and selected legacy cable interfaces in MV installations

✔ Rated for medium voltage applications up to 36 kV depending on system configuration

✔ Enhanced environmental sealing using multi-layer insulation and high-performance sealing compounds

✔ Pre-assembled components help ensure consistent quality and shorten installation time

✔ Installation designed around common professional tools without complex heat-shrinking processes

✔ Modular construction philosophy supports flexible adaptation to different cable designs

✔ Developed in line with the engineering standards for dependable network performance

✔ Provides strong resistance against groundwater ingress and soil contamination effects

✔ Suitable for distribution grids requiring durable, low-maintenance MV jointing solutions

11kV 33kV Transition Cable Joint

Applications

✔ MV cable network entry and distribution connection points using modern feed-in jointing technology

✔ Linking of underground MV feeders to substations, kiosks and ring main circuits

✔ Compatibility with polymeric insulated medium voltage cables in distribution systems

✔ Suitable for infrastructure expansion, reinforcement and network reconfiguration projects

✔ Use in commercial, municipal and utility-operated MV power delivery systems

✔ Integration into renewable energy, storage and decentralized generation connections

✔ Field installation situations requiring dependable electrical sealing and mechanical stability

✔ Designed in accordance with engineering practices for distribution network reliability

Feed-In Cable Joint – Additional Information

The MV feed-in cable joint system is designed to provide a secure electrical and mechanical interface for underground distribution feeders entering network nodes. The joint construction uses engineered insulation materials combined with sealed structural housing to maintain stable performance under variable load conditions. This solution is particularly suited for distribution circuits where reliability and environmental durability are essential, especially in outdoor or buried network segments.

For medium voltage installations, the feed-in joint design supports controlled electric field management through integrated stress regulation elements and precision-moulded insulation layers. When deployed in modern distribution assets, the system helps maintain stable impedance characteristics and reduces the risk of localised electrical ageing in connected cable sections, following engineering practices.

MV Feed-in Joint Sealed Silicone

Sealed Structural Housing

The feed-in joint incorporates a reinforced outer enclosure engineered to resist soil pressure, moisture migration and mechanical impact. The housing system supports stable operation in underground or exposed MV feeder entry locations.

Stress Regulation MV Feed-in Joint

Integrated Stress Regulation

Precision-moulded insulation components manage electrical field intensity around conductor transitions. This helps maintain uniform dielectric performance and supports long-term stability in energized distribution circuits.

Lovink Logo

Distribution Network Integration

The joint system is developed for feeder connection points in MV distribution grids, supporting stable energy transfer in utility, commercial and infrastructure applications where dependable network interface performance is required.

✔ Supports secure MV feeder entry connections in underground distribution environments

✔ Engineered for polymeric insulated medium voltage cable systems

✔ Helps reduce electrical stress concentration at termination transition zones

✔ Reinforced sealing architecture for improved resistance to groundwater and particulate ingress

✔ Suitable for utility network expansion, reinforcement and asset renewal projects

✔ Designed for professional field installation using standard MV cable preparation tools

✔ Supports stable long-term operation in distribution feeders supplying urban and industrial loads

Enquire

Data Sheets