Optical Cable Enlarged Section for Strain Distribution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current optical fiber cable installation tools apply substantial strain to cables, leading to damage, signal loss, and increased installation time due to inadequate strain distribution and handling issues.
Innovation Solution
A stopper and strain relief devices, such as spiral and S-curve designs, are attached to the optical fiber cable to distribute strain effectively, preventing tool slippage and reducing frictional resistance during installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If current installation tools are used to pull the cable, then the cable can be installed, but substantial strain is applied to the cable causing damage, signal loss, and extended installation time
Solution Approach 1:
The cable is segmented into two functional zones: a reinforced stopping section with increased diameter and higher strength properties, and a standard cable section. This segmentation allows the stopping section to bear the pulling strain while the optical fibers remain protected, enabling faster installation without cable damage or signal loss.
2Ease of operation
If a pulling eye is used for cable installation, then the cable can be pulled, but there is added time and risk of cable damage when the pulling eye is disassembled
Solution Approach 1:
The stopping section serves dual functions: it acts as both the structural reinforcement for strain distribution and the attachment point for pulling tools. This self-service design eliminates the need for separate pulling eyes and their associated disassembly procedures, reducing installation time and complexity.
3Force
If strain is applied to the cable during installation, then the cable can be pulled through the installation path, but permanent damage to fibers and connections occurs
Solution Approach 1:
The cable structure is modified locally at the stopping section with increased diameter and enhanced mechanical properties. This localized quality enhancement concentrates the strain-bearing capability at the stopping section while the optical fibers and connections maintain their original integrity, allowing high pulling forces without damage to critical components.
Data Source
AI summary
An optical fiber cable includes a stopper, an enlarged section, around a portion of its outside surface that is adapted to engage a tool, which is used for pulling the cable through a conduit or the like. The stopper may be an integrated part of the cable, or it may be applied to the cable as a shrink tube or an adhesive tape.