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Lc elbow cold splice

Fibre interconnection and data room reference Published 18 Mar 2026

Use this reference to prepare product questions for FD SOLUCIONES. Check interfaces, capacity, protection and installation requirements against the current product documentation.

LC elbow cold splices are cold-applied silicone or EPDM rubber kits designed to join or terminate longitudinally corrugated (LC) medium-voltage cables safely and reliably without heat. OverviewLC elbow cold splices are used to connect or repair longitudinally corrugated shielded cables in medium-voltage systems (typically 15–35 kV). These splices are cold-applied, meaning they do not require heat or open flames, making them safer for environments with combustible gases or outdoor installations.

They are suitable for indoor, outdoor, and direct-burial applications.

Materials and Construction

Splice Body: Typically made of silicone rubber, providing high UV resistance, flexibility, and dielectric strength. Jacketing: Often EPDM rubber, offering physical protection and corrosion resistance. Mastic or Sealant: Some kits include mastic strips for additional moisture sealing, especially for elbow-to-cable jacket applications.

Connectors: Compatible with copper or aluminum compression (crimp) connectors or shearbolt connectors for reliable electrical continuity.

Key Features

Cold Shrink Technology: The pre-expanded tubing contracts onto the cable when the support core is removed, creating a tight, circumferential seal. Active Memory Seal: Maintains tight contact during thermal expansion and contraction, ensuring long-term reliability. Voltage and Temperature Ratings: Many kits, such as the 3M QS4 series, are rated for 35 kV with a BIL of 250 kV and operating temperatures up to 105°C, with emergency overload up to 140°C.

Ease of Installation: No hot-work permits are required, and installation is straightforward with minimal tools.

Applications

Inline Splices: Joining two LC cables in series.

Elbow-to-

Cable Connections: Sealing the interface between a cable and an elbow termination. Size Transitions: Accommodates conductor size changes within the kit's range (e.g., 1/0 AWG to 1000 kcmil),.

Outdoor/

Exposed Environments: UV-resistant silicone and EPDM materials allow use in trackside or direct-burial installations.

Popular Products3

M Cold Shrink QS4 Integrated Splice Kits: Designed for LC, JCN, tape shield, and flat strap cables; rated 35 kV, BIL 250 kV, silicone body with EPDM jacketing.

T

E Connectivity Cold Shrink Splices (CATJ, CSJD, CST): One-piece cold-applied splices for LC and other shielded cables, including integrated stress control and mastic for void filling. DSG-Canusa CSS Series: Cold-applied silicone rubber kits for in-line or elbow-to-cable applications, with optional mastic strips and external ground kits.

Installation Notes

Prepare Cable: Strip insulation and shields according to kit instructions. Install Connector: Use compatible compression or shearbolt connectors. Position Cold Shrink Tube: Slide over the splice area.

Release Core: Allow the tubing to shrink and form a tight seal. Optional Mastic: Apply mastic strips for additional moisture protection if included.

L

C elbow cold splices provide a safe, reliable, and maintenance-friendly solution for medium-voltage cable systems, ensuring electrical integrity and environmental protection without the need for heat or complex installation procedures.

Lc elbow cold splice - FD SOLUCIONES OPTICAL SYSTEMS [PDF]

Lc elbow cold splice

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Technical note

This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.

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