Fiber optic heat shrink tubing anti-tracking sample

Fiber optic heat shrink tubing with anti-tracking properties combines cross-linked polyolefin materials and thermal fusion layers to protect optical fibers while preventing electrical tracking in high-voltage or harsh environments.

Overview

Fiber optic heat shrink tubing, also known as fiber splice tubes or fusion protection tubes, is designed to safeguard optical fibers during splicing and installation. These tubes provide mechanical strength, environmental protection, and maintain optical transmission performance. Anti-tracking variants are specifically engineered to resist electrical tracking and surface degradation, making them suitable for medium-voltage applications or environments prone to moisture and contamination.

Material CompositionCross-linked polyolefin: Provides temperature resistance, mechanical strength, and elongation properties. Hot fusion inner tube: Ensures smooth, bubble-free shrinkage and seals the fiber splice. Stainless steel or ceramic rod: Reinforces the structure, preventing warping or fiber damage during heat application.

Adhesive coating: Applied at the ends to enhance sealing and environmental protection.

Performance Characteristics

Operating temperature: Typically from -55°C to 100°C, with shrink activation starting around 100°C and completing at 130°C. Moisture and environmental resistance: Sealing structure prevents ingress of water and contaminants, ensuring long-term reliability. Electrical tracking resistance: Anti-tracking formulations prevent surface carbonization and insulation failure under wet or polluted conditions, making them suitable for medium-voltage cable joints up to 36 kV.

Optical performance preservation: Maintains fiber transmission properties while providing mechanical protection at the fusion joint.

Applications

Fiber optic splicing: Protects single or ribbon fibers in telecommunications networks. Medium-voltage cable joints and terminations: Anti-tracking tubes prevent insulation failure in power distribution systems. Harsh environments: Suitable for outdoor, wet, or contaminated conditions where both mechanical and electrical protection are required.

Installation and CustomizationHeat-activated shrinkage: Tubes shrink tightly around the fiber and rod when exposed to heat, excluding air and securing the splice. Clear sleeves: Allow visual inspection of the splice before shrinkage. Customizable colors and sizes: Facilitate identification and installation in complex networks.

Single or ribbon fiber options: Available to match specific splicing requirements.

Sample Availability

Many suppliers, such as Shenzhen Dicore Technology and Bonelinks, offer customized samples for testing and evaluation. Samples typically include different diameters, lengths, and color options to match specific fiber optic or medium-voltage applications. Fiber optic heat shrink tubing with anti-tracking properties is therefore a versatile solution for both telecommunications and electrical applications, combining mechanical protection, environmental sealing, and electrical safety in a single product.