Fiber Protection Sleeve | 60mm | 45mm | 40mm Supplier

Fiber Protection Sleeve | 60mm | 45mm | 40mm Supplier

The fiber optic fusion splice protector sleeve serves a crucial role in safeguarding the junction where two optical fibers connect. This protection is vital in preventing damage and contamination that could compromise the optical connection. Typically, a fiber optic fusion splice sleeve only partially covers the optical fiber, allowing a portion to remain exposed so that light can sufficiently traverse through it.

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Why You Need a Fiber Optic Splice Sleeve

When preparing the fiber optic fusion splice protector sleeves, it is essential to strip the outer coatings and protective layers. This action can make the area where the fusion splicing occurs more susceptible to environmental factors, thereby reducing its mechanical integrity.

The fiber optic splice protection sleeve is a specialized tube made from polyethylene that undergoes shrinkage when heated. It features an inner wall coated with a hot melt adhesive for enhanced bonding.

A slender steel tube, approximately 1.5 mm in diameter, is positioned centrally within the sleeve. Upon application of heat, the fiber sleeve contracts and bonds around both the fiber optic connector and the steel tube simultaneously.

This procedure reinforces the optical fiber joint, mitigating the effects of bending on the joint, and significantly improves moisture resistance. It is crucial to expel any air from the tube and ensure even heating to avoid air bubble formation during shrinkage. Careful control over the heating temperature is also necessary to prevent damage to the polyethylene tube.

How to Use a Fiber Protection Sleeve?

The inner strength component of the splice protection sleeve is designed to provide stability during the installation and removal of splice holders. Therefore, when inserting the spliced fiber into a holder, the strength component should be positioned downwards. This approach ensures that the strength element, rather than the fiber, is installed first into the target holder, thereby minimizing fiber contact and facilitating the easier removal of a splice sleeve when needed.

Types of Fiber Optic Fusion Splice Sleeves

Single Fiber Splice Sleeve

These splice sleeves are specifically designed for individual optical fibers, providing robust protection after fusion splicing.

Ribbon Fiber Splice Protection Sleeve

Ribbon fiber splice protectors cater specifically to ribbon optical fibers, safeguarding multiple fibers within a single cable. These sleeves typically have multiple slots for secure positioning of the optical fiber ribbon, crafted from soft and flexible materials such as rubber or silicone.

60mm Fiber Optic Splice Sleeve

The splice sleeve with a size and length of 60mm features a circular design with an internal diameter of 1.6mm. It incorporates a circular steel pin on the underside, measuring 1.5mm in diameter, while the outer tube has a diameter of 4.0mm.

Basic Requirements

The heat-shrinkable tube of the fiber optic cable protection sleeve is manufactured from low-density western polyolefin, which expands post-cross-linking. It acts as a protective component tailored for optical fiber splicing.

Key requirements include:

1. The object's appearance and shape must be intact with no deformities, burrs, cracks, scratches, or other visible flaws, while maintaining consistent wall thickness throughout.
2. Using the protection should not incur extra splice losses.
3. It must ensure that the optical fiber remains unharmed during insertion and extraction.
4. Utilizing the splice protection sleeves should enhance the mechanical properties of the optical fiber's fusion splicing points.
5. The sleeves should maintain the optical fiber's original performance and shape without damage.
6. The stainless steel used for reinforcement must meet GB standards and possess adequate flexural strength.

Further reading:
Why Choose Custom Fiber Optic Cable Drums?

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Features

• Does not interfere with the light-transmitting properties of the optical fiber, enhances the splice point protection, and improves mechanical strength.
• Easy operation, safe to use, significantly lowering the risk of optical fiber damage during installation.
• Transparent design allows for easy verification of the optical fiber connection status.
• Fully sealed internal structure provides excellent resistance to temperature and humidity.

Heat Shrink Parameter Setting

Heating duration is set to 30 seconds at a temperature of 200°C with an endpoint temperature of 140°C.

Technical Requirements

Starting temperature: 90°C
Working/storage temperature: -55°C to 125°C
Service life: 30 years
Radial shrinkage: >= 50%
Axial shrinkage: >= 2%
Tensile strength: >= 14 Mpa
Aging: 7 days at 90°C, 60 days at 60°C
Strength after aging: >= 10 Mpa
Elongation at break after aging: >= 200%
Insulation resistance: >= 10^14 Ω·cm
Dielectric strength: >= 25KV/mm

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Feel free to reach out to us to discuss your requirements with China Fiber optic protective sleeves Exporter. Our knowledgeable sales team is ready to help you find the best options tailored to your needs.