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Product Overview
COMPAQ Heat Shrink Elastomeric Triple Layer (TriFit) Tubing is a next-generation insulation solution engineered for medium voltage networks up to 42kV. Built with a co-extruded semi-conductive, insulation, and elastomeric triple layer design, it combines electrical integrity with mechanical strength, ensuring dependable performance in demanding environments.
Manufactured from specially formulated, cross-linked thermoplastic polymers, the tubing delivers a precise fit once shrunk, forming a robust protective barrier around the cable. Its advanced construction not only provides superior dielectric strength and sealing but also protects against fire, moisture, and corrosion, extending service life and reducing maintenance needs.
Beyond tubing, COMPAQ’s heat shrink technology is available in a complete range of joints, splices, and terminations-all designed to connect, seal, and safeguard cables and accessories. The result is a proven, field-tested solution that ensures network reliability, operational safety, and minimized downtime for utilities, EPCs, and industrial operators worldwide.
| Parameter | Specification |
|---|---|
| Shelf Life | Over 5 years (–10°C to +40°C, <75% RH) |
| Construction | Co-extruded triple layer: semi-conductive, insulation, elastomer |
| Shrink Ratio | 3:1 |
| Standard Colours | Black / Red / Red |
| Tensile Strength | ≥ 10 MPa (ASTM D 2671) |
| Volume Resistivity | ≤ 10¹⁴ Ω·cm (IEC 93) |
| Application Voltage | Up to 42kV |
| Ultimate Elongation | ≥ 200% (ASTM D 2671) |
| Min. Full Recovery Temp. | 130°C |
Applications
Selection Criteria
To identify the correct kit configuration, kindly confirm the following project details:
01
Voltage class
02
Cable size and insulation type
03
Required length
04
Quantity and delivery location
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COMPAQ offers tubing solutions for low, medium, and high-voltage applications, with this triple layer tubing specifically designed for systems up to 42kV (extendable to 66kV in selected designs).
The standard shrink ratio is 3:1, ensuring a tight, profile-following fit over a wide range of cable diameters.
Installation is done using a standard gas torch or industrial hot-air gun. Once heated, the tubing shrinks uniformly and conforms tightly to the underlying surface.
Over 5 years when stored in a humidity-controlled environment (–10°C to +40°C, <75% relative humidity).
Yes. Custom lengths, diameters can be provided on request for specific project requirements.
Yes, it is engineered to withstand water ingress, chemical attack, and harsh environmental conditions.