Franchise Cold Connector 4-core

A 4-core cold connector is a pre-stretched elastomeric termination or joint that provides reliable insulation and sealing for medium-voltage power cables without the need for heat during installation.

Overview

A 4-core cold connector is designed to terminate or join four individual conductors in medium-voltage power cables, typically ranging from 1 kV up to 35 kV depending on the product and manufacturer . These connectors use cold shrink technology, where a pre-stretched silicone or EPDM rubber sleeve is placed over a removable support core. Once positioned on the cable, the core is removed, allowing the rubber to recover and tightly seal the cable conductors . This method eliminates the need for heat sources, making installation safer and faster, especially in confined or hazardous areas.

Key Features

• Voltage Range: Suitable for medium-voltage applications, often from 1 kV to 35 kV .
• Material: Made from elastomeric materials such as silicone or EPDM, providing flexibility, UV resistance, and long-term durability .
• Environmental Protection: Offers excellent sealing against water, humidity, and contaminants, making it suitable for indoor, outdoor, underground, or direct-buried installations .
• Ease of Installation: No heat or special tools required; the connector is simply slid onto the cable and the support core removed .
• Mechanical and Electrical Reliability: Maintains insulation integrity while accommodating cable expansion and contraction, reducing stress on the conductors .

Applications

• Power Distribution Networks: Terminating or splicing 4-core medium-voltage cables in substations or distribution lines.
• Industrial Installations: Connecting multi-core cables in factories or plants where heat application is restricted.
• Harsh Environments: Outdoor, underground, or high-humidity areas where long-term reliability is critical .

Installation Notes

1. Slide the cold connector over the prepared cable ends.
2. Remove the internal support core to allow the elastomeric sleeve to recover.
3. Ensure proper seating and alignment for all four cores.
4. Optional accessories may include shearbolt connectors, breakout boots, or rejacketing sleeves for enhanced mechanical support .

Advantages Over Heat Shrink

• Eliminates the need for torches or heat guns, reducing fire risk.
• Faster installation with fewer steps.
• Elastomeric material adapts to cable movement, maintaining a reliable seal over time . In summary, a Franchise Cold Connector 4-core is a robust, easy-to-install solution for medium-voltage multi-core cables, providing long-term insulation, environmental protection, and mechanical reliability without the need for heat during installation .