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HENGYANG ZK INDUSTRIAL CO., LTD

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China 24kV 3-Core Cold Shrink Straight Cable Joint Kit XLPE Power Cable Connector 70
China 24kV 3-Core Cold Shrink Straight Cable Joint Kit XLPE Power Cable Connector 70

  1. China 24kV 3-Core Cold Shrink Straight Cable Joint Kit XLPE Power Cable Connector 70
  2. China 24kV 3-Core Cold Shrink Straight Cable Joint Kit XLPE Power Cable Connector 70
  3. China 24kV 3-Core Cold Shrink Straight Cable Joint Kit XLPE Power Cable Connector 70

24kV 3-Core Cold Shrink Straight Cable Joint Kit XLPE Power Cable Connector 70

  1. MOQ: 10 Sets
  2. Price: USD 30-65 / Set
  3. Get Latest Price
Conductor Size 70-120mm²
Installation Method Cold Shrink (No Heat Required)
Insulation Material Silicone Rubber (HTV)
Impulse Withstand Voltage 125kV Peak
Connector Type Straight Through Joint
Short Circuit Rating 40kA / 1 sec
Supply Ability 5000 Sets per Month
Cable Type XLPE Power Cable
Payment Terms T/T,L/C,Western Union
Number of Cores 3-Core
Operating Temperature -60°C to +180°C
Packaging Details Standard export carton with inner EPE foam cushion, waterproof PE vacuum bag, plywood pallet
Rated Voltage 24kV (Um=25kV)
Delivery Time 5-15 working days
Brand Name WNRLN
Model Number CSJ-24/3C-120-SI
Certification ISO 9001:2015, IEC 60502-4
Place of Origin Guangdong, China

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  1. Product Details
  2. Company Details

Product Specification

Conductor Size 70-120mm² Installation Method Cold Shrink (No Heat Required)
Insulation Material Silicone Rubber (HTV) Impulse Withstand Voltage 125kV Peak
Connector Type Straight Through Joint Short Circuit Rating 40kA / 1 sec
Supply Ability 5000 Sets per Month Cable Type XLPE Power Cable
Payment Terms T/T,L/C,Western Union Number of Cores 3-Core
Operating Temperature -60°C to +180°C Packaging Details Standard export carton with inner EPE foam cushion, waterproof PE vacuum bag, plywood pallet
Rated Voltage 24kV (Um=25kV) Delivery Time 5-15 working days
Brand Name WNRLN Model Number CSJ-24/3C-120-SI
Certification ISO 9001:2015, IEC 60502-4 Place of Origin Guangdong, China
High Light 24kV Silicone Cable JointHigh Temp Silicone ConnectorXLPE Straight Joint 24kV

24kV Silicone Cold Shrink Straight Cable Joint Kit – 3-Core XLPE Power Cable Connector

Product Overview

The WNRLN CSJ-24/3C-120-SI is a premium 24kV silicone cold shrink straight cable joint kit designed for 3-core XLPE insulated power cables with conductor sizes 70mm² to 120mm². Utilizing high-temperature vulcanized (HTV) silicone rubber insulation, this joint kit delivers exceptional thermal stability up to +180°C, making it the ideal choice for demanding industrial environments, high-ambient substations, and regions with extreme temperature swings.

Key Features

  • HTV Silicone Rubber Insulation – Superior thermal resistance from -60°C to +180°C continuous operation, far exceeding EPDM limits. Excellent UV, ozone, and corona discharge resistance for outdoor and high-altitude installations.
  • 24kV Rated Voltage – Designed and tested for 24kV (Um=25kV) medium voltage power distribution per IEC 60502-4.
  • Cold Shrink Installation – Pre-stretched silicone body on removable spiral core. Pull out the core for instant, uniform contraction – no heat, no gas, no tools.
  • 3-Core Straight Joint Design – Integrated three-phase connector with stress control, insulation, shielding, and outer sealing in one compact assembly.
  • Wide Conductor Range – Compatible with 70-120mm² sector-shaped or round stranded copper/aluminum conductors.
  • Hydrophobic Surface – Silicone rubber naturally repels water and resists tracking, providing superior pollution performance in coastal and high-humidity environments.
  • IP68 Sealed – Triple-layer moisture barrier ensures reliable operation in direct burial and submerged applications.
  • Fast Installation – Typical joint completion under 50 minutes by a trained two-person crew.

Applications

  • High-temperature industrial plants (steel mills, foundries, glass factories)
  • Coastal and offshore wind farm collector grids
  • High-altitude substation cable interconnections
  • Underground MV distribution in tropical climates
  • Mining and chemical processing power systems
  • Cable repair in fire-resistant circuits

Technical Specifications

Rated Voltage (U0/U)12/20kV (24kV class, Um=25kV)
Conductor Size Range70mm² – 120mm²
Number of Cores3-Core
Insulation MaterialHTV Silicone Rubber
Connector TypeStraight Through Joint (In-line)
Cable Insulation TypeXLPE (Cross-Linked Polyethylene)
Installation MethodCold Shrink – Pull-out Core, No Heat Required
Operating Temperature-60°C to +180°C (Continuous)
Short Circuit Thermal Rating40kA / 1 second
Impulse Withstand Voltage125kV Peak (1.2/50μs waveform)
Power Frequency Withstand55kV / 5 minutes
Partial Discharge<10pC at 1.73U0 (20.7kV)
Tracking ResistanceClass 1A 4.5 (IEC 60587)
Ingress ProtectionIP68 (Submersion Ready)
Standards ComplianceIEC 60502-4, IEEE 404

Kit Contents

  • 3 x Cold Shrink Straight Joint Bodies (HTV Silicone, one per phase)
  • 1 x Cold Shrink Outer Jacket Sleeve (Silicone)
  • 3 x Shear Bolt Connectors (tinned copper, 70-120mm²)
  • 1 x Roll Silicone Mastic Sealing Tape
  • 3 x Copper Mesh Screen Socks
  • 1 x Constant Force Spring Set
  • 1 x Roll Abrasive Cloth
  • 3 x Cleaning Wipes
  • 1 x Installation Instruction Manual

Quality Assurance

Every WNRLN silicone cold shrink joint undergoes 100% routine testing including partial discharge measurement, AC voltage withstand, thermal cycling, and dimensional inspection. Our ISO 9001:2015 certified facility ensures batch-to-batch consistency. Type test reports per IEC 60502-4 available on request.

Contact our sales team today for pricing, custom silicone formulations, or OEM requirements. Volume discounts available for project orders.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer

  • Year Established:

    2012

  • Employee Number:

    11~50

  • Ecer Certification:

    Verified Supplier

Hengyang ZK Industrial Co., Ltd. mainly specialize in manufacturing and exporting cold shrink series sealing products, including customized processing machines and products kits, for examples: processing winding and expanding machines, spiraling strip/tube supporting material, EPDM cold sh... Hengyang ZK Industrial Co., Ltd. mainly specialize in manufacturing and exporting cold shrink series sealing products, including customized processing machines and products kits, for examples: processing winding and expanding machines, spiraling strip/tube supporting material, EPDM cold sh...

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Get in touch with us

  • Reach Us
  • HENGYANG ZK INDUSTRIAL CO., LTD
  • Building 3, Entrepreneurship Center, High-tech Zone, Hengyang City, Hunan Province.
  • https://www.cold-shrinktube.com/

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