Product Code: CSTO

The Chardon Cold Shrinkable Termination offers easy installation and reliable performance when terminating indoor and outdoor medium voltage cables. Made from high quality, UV resistant, silicone rubber, the Chardon Cold Shrinkable Termination offers a combination of durability and high performance in the field.

It includes a stress controlling compound housing, preassembled on a plastic “hold out” tube. As the plastic hold out is removed, the stress relief housing shrinks onto the cable. The terminations are easy to install, and have a wide application range. No tools, or heat sources are required. The products are designed to last the entire life of the cable.

Chardon Part-Number Configurator

Product Selection Tool v1.6.1

Part Number Selector Cable Insulation O.D. Estimator

Configure your IEEE/ANSI Outdoor Cold Shrinkable Termination up to 35 kV

Input your cable specs below to instantly generate the exact Chardon part number for your quotation.

1 Select Product Line

Separable Connectors Terminations

Continue

2 Define Rating & Standard

Standard

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Voltage Class (kV)

Current Rating (A)

Application / Environment

Outdoor (CSTO)Indoor (CSTI)

Voltage Class

Select...15 kV25 kV35 kV

Product Name

BASE-CODE

Selected. Proceed to Step 3.

Continue to Cable Dimensions

3 Cable Dimensions & Options

Cable Insulation O.D. (mm)

Required to define the correct cable adapter size for a void-free dielectric seal.

Not sure? Estimate it here.

Conductor Size (mm²)

Dictates the size of the internal metallic lug (compression or shear-bolt).

Conductor Type

Stranding configuration of your cable core.

Compact or SolidConcentric or Compressed

Connector Type

Preferred installation method for the lug.

CompressionShear-Bolt

Connector Material

Match this with your actual cable material.

Copper (C)Bi-metal (Al & Cu) (B)

Connector Position

Orientation of the T-Body interface.

Front (FDT)Rear (RDT)

Include Capacitive Test Point

Generate Part Number

Application / Environment

Outdoor (CSTO)Indoor (CSTI)

Voltage Class

Select...15 kV25 kV35 kV

Cable Insulation O.D. (mm)

Required to ensure the cold shrink tube fits tightly over the insulation.

Not sure? Estimate it here.

Conductor Size (mm²)

Dictates the size of the termination's metallic lug.

Connector Lug

Include a matching metallic lug in the kit?

Not necessaryCompression ConnectorShear Bolt Connector

Search Termination

Cable Insulation O.D. Estimator

Quickly estimate your diameter over insulation based on our global market database.

Voltage Class

Conductor Size (mm²)

Brand (Optional)

Calculate O.D.

Estimated Diameter over Insulation

0.0 mm

Value copied to the Selector automatically!

Return to Selector

⚠️ Note: This is an estimation. Always verify the exact diameter over insulation with your cable manufacturer before installing accessories.

Understand the Cable: Sizing Physics

Why do we need both measurements?

The conductor cross-section (e.g., 95 mm²) is standardized and almost always printed on the cable jacket or listed in datasheets. However, cables with the exact same conductor can have vastly different Insulation Outer Diameters depending on their voltage class and the manufacturer's design.

While some catalogs provide the nominal Insulation O.D., manufacturing tolerances mean the real diameter can differ. That is why verifying the exact dimension using an appropriate tool, such as a caliper, is highly recommended before specifying your medium voltage accessory.

1. Sizing the Separable Connector or Termination

The accessory body (adapter or cold shrink) stretches over the insulation. A precise interference fit is critical to eliminate air gaps and control the electric field.

Requires exact Insulation O.D. (mm)

2. Sizing the Metallic Lug

The internal connector (compression or shear-bolt) must perfectly match the core to safely carry the electrical current without overheating.

Requires exact Conductor Size (mm²)

Resources:

• Download Catalog

Installation Instructions:

• 15 & 25 kV Class: Download Instructions Sheet (English Version)
• 15 & 25 kV Class: Download Instructions Sheet (Spanish Version)
• 15 & 25 kV Class: Download Instructions Sheet (Portuguese Version)
• 35 kV Class: Download Instructions Sheet (English Version)
• 35 kV Class: Download Instructions Sheet (Spanish Version)
• 35 kV Class: Download Instructions Sheet (Portuguese Version)