Difference between Heat shrink and Mechanical dome enclosures

Heat Shrink Enclosure:

Design: Heat shrink enclosures are typically tubular in shape and made of heat shrinkable material, such as polyolefin. They require heat to shrink and form a tight seal around the fiber optic components.

Installation: Heat shrink enclosures are applied by heating the enclosure, causing it to shrink and conform to the size and shape of the fiber optic splice or connector. This process requires the use of a heat gun or a fusion splicer's built-in heater.

Protection: Heat shrink enclosures provide physical protection, strain relief, and environmental protection to the enclosed fiber optic components. They are effective in sealing out moisture, dust, and contaminants from the splice or connector.

Fusion Splicing: Heat shrink enclosures are commonly used in fusion splicing applications to protect and secure the fusion splice point. The heat shrink material encapsulates the splice, providing insulation and mechanical strength.

Size and Flexibility: Heat shrink enclosures are available in various sizes to accommodate different splice or connector configurations. However, they are less flexible than mechanical enclosures in terms of re-entry and reusability.

Mechanical Dome Enclosure:

Design: Mechanical dome enclosures have a dome-shaped design and are typically made of durable materials like metal or plastic. They consist of two or more parts that are mechanically fastened together.

Installation: Mechanical dome enclosures are installed by fitting the components together and using screws, latches, or other mechanical fasteners to secure the enclosure. They do not require heat for installation.

Protection: Mechanical dome enclosures provide physical protection and environmental sealing for the enclosed fiber optic components. They are designed to withstand harsh conditions, such as moisture, temperature fluctuations, and physical impact.

Re-entry and Reusability: Unlike heat shrink enclosures, mechanical dome enclosures are often designed for re-entry and reusability. They can be opened, accessed, and resealed without the need for replacing the enclosure.

Size and Configurations: Mechanical dome enclosures are available in various sizes and configurations to accommodate different fiber optic applications, such as splicing, branching, or connecting multiple cables.