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By goodvin | 15 September 2023 | 0 Comments

Fiber Optic Splice Closure FAQs

Fiber Optic Splice Closure FAQs

A fiber optic splice closure, also known as an enclosure or a joint closure, is a device used to house and protect the spliced ends of fiber optic cables. When two fiber optic cables need to be joined together, the individual fibers within the cables are carefully aligned and fused together using a specialized fusion splicer. The resulting splice needs to be protected from external elements such as moisture, dust, and physical stress. This is where the fiber optic splice closure comes into play.

1. What is Fiber Optic Splice Closure? 
Fiber Optic Splice Closure is a closed container used to protect the fiber optic splice point. It provides internal space to accommodate excess fiber and fusion protection sleeves and has good sealing performance. It is used for outdoor cable splicing and repair.

2. What is the basic structure of Fiber Optic Splice Closure? 
The basic structure of Fiber Optic Splice Closure includes the box body, box components, sealing ring, and lock buckle. Box body: generally made of metal or high-strength plastic material, providing space to accommodate internal components and fiber. Box components: used to store fusion protection sleeves and excess fiber, generally with a modular structure for easy management. Sealing ring: set at both ends of the box body to ensure the sealing performance when the fiber enters and exits. Lock buckle: used to lock the sealing ring to prevent seal failure caused by internal and external air pressure.

3. What are the common types of Fiber Optic Splice Closure? 
The common types of Fiber Optic Splice Closure include: Buried type: used for pipes or direct burial in the ground, with a high protection level, generally IP68. Overhead type: hung on poles or walls, with a protection level above IP55. Handhole type: set at the entrance of manholes or pipelines for easy operation and maintenance. Distribution box: mainly used for outdoor fiber optic cable distribution, with a large capacity and convenient distribution.

4. How to choose the appropriate Fiber Optic Splice Closure? 
The selection of Fiber Optic Splice Closure mainly considers: Protection level: select according to the use environment, the highest in the well. Capacity: choose the appropriate specification according to the number of access fiber cores, and a small capacity will affect the fusion efficiency. Structural form: buried type, overhead type, handhole type, or distribution box can be selected. Sealing method: O-ring sealing or heat sealing can be selected, and heat sealing has better sealing effect.

5. What are the testing requirements for Fiber Optic Splice Closure? 
The common testing items for Fiber Optic Splice Closure are: Tensile strength test: check the maximum tensile force that the box body can withstand and whether it meets the requirements. Waterproof test: test the protection level of the junction box, such as whether IP68 and IP65 meet the standards. Temperature cycle test: test the performance changes under high and low temperature environments, such as the changes in joint loss. Aging test: long-term environmental exposure test to check the durability performance of the product. Fusion joint test: check whether the fusion joint loss is within the allowable range.
The above provides a comprehensive knowledge of the types, structures, selection, and testing of Fiber Optic Splice Closure. We hope to provide a systematic and in-depth understanding of this product.

Fiber optic splice closures are essential components in the world of fiber optic communication. They provide a secure and protected environment for spliced fibers, ensuring the integrity and reliability of data transmission. With their scalability, ease of installation, and resistance to external factors, these closures play a crucial role in the construction and maintenance of fiber optic networks. As technology continues to advance, fiber optic splice closures will undoubtedly play an even more significant role in the seamless transmission of data across the globe.


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