Optical Fiber Composite Ground Wire with Aluminum Resin Layer
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Solution Overview
Problem
Conventional optical fiber composite ground wires have complex configurations, high manufacturing costs, and are bulky and heavy, leading to difficulties in manufacture and increased risk of damage due to excessive tensile strength and compression impacts, which compromises safety and communication quality.
Innovation Solution
An optical fiber composite ground wire using a high-strength composite material composed of fiber and resin, eliminating the need for a peripheral tension wire, with a simple structure, small outer diameter, and low electrical resistance, achieved by incorporating an aluminum wire layer twisted around the optical fiber unit protected by inner and outer tubes filled with a jelly compound and curable resin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional tight buffer type or loose tube type structures are used, then optical fiber protection is achieved, but the structure becomes complicated and manufacturing cost increases
Solution Approach 1:
The patent combines multiple protective functions into a single integrated structure. The outer tube serves both as a protective enclosure and as the structural element that eliminates the need for separate aluminum-clad steel wires and aluminum wires. The composite material filling the outer tube provides both mechanical protection and tensile strength, merging functions that were previously separated into multiple components.
Solution Approach 2:
The outer tube in the invention performs multiple functions simultaneously: it protects the optical fiber from mechanical damage, provides tensile strength to replace traditional aluminum-clad steel wires, and contributes to electrical conductivity through the aluminum wire layer. This multi-functional design eliminates the need for separate specialized components for each function.
2Strength
If aluminum-clad steel wire and aluminum wire are added to provide tensile strength and electrical properties, then mechanical and electrical performance improves, but weight and outer diameter increase
Solution Approach 1:
The patent uses a composite material consisting of aluminum wire and resin combined in a single layer. This composite structure provides high tensile strength comparable to traditional aluminum-clad steel wires but with reduced weight. The aluminum wire provides strength and electrical conductivity, while the resin matrix binds the fibers and reduces overall density, achieving a weight reduction of 10% or more compared to conventional designs.
3Reliability
If conventional multi-layer structure with aluminum tube and aluminum-clad steel wire is used, then electrical properties are satisfied, but manufacturing complexity and material cost increase
Solution Approach 1:
The patent merges the electrical conductor function and the tensile strength function into a single composite material layer. The aluminum wire within the composite material provides electrical conductivity, eliminating the need for separate aluminum tubes and aluminum-clad steel wires. This single integrated layer significantly simplifies the manufacturing process while maintaining reliable electrical properties.
4Strength
If outer diameter and weight are increased to provide sufficient tensile strength, then mechanical strength improves, but safety of steel tower decreases and compression impact damage risk increases
Solution Approach 1:
The composite material achieves high tensile strength through the aluminum wire component while the resin matrix provides compression resistance and impact absorption. This combination allows the ground wire to have sufficient tensile load capacity without increasing outer diameter or weight excessively, thereby reducing the risk of compression impact damage during installation and improving steel tower safety.
Data Source
AI summary
The present invention relates to an optical fiber composite ground wire using a composite material. More particularly, the present invention relates to an optical fiber composite ground wire using a composite material, which has simple structure, light weight, improved tensile strength, and reduced electrical resistance.