Self-Amalgamating Tape for Fiber Optic Cable Clamping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Fiber optic cables, particularly those with thin jackets, experience undesirable strain and damage due to clamping forces, which apply radial tension to the optical fibers, necessitating an improved clamping method that provides strain relief and can accommodate various cable diameters and withstand higher temperatures.
Innovation Solution
A method involving the use of self-amalgamating tape wrapped around the cable jacket to create a protective barrier between the cable and the clamp, allowing for clamping while transferring axial loads to a strain relief bracket, and utilizing a single-size clamp for a range of cable diameters, with the tape fusing to itself for a strong and waterproof seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a clamp is applied directly to the fiber optic cable to provide clamping force, then the clamping function is achieved, but the cable experiences undesirable strain and damage due to radial tension on the optical fibers
Solution Approach 1:
A foam material is introduced as an intermediary between the clamp and the fiber optic cable. The foam distributes the clamping force across a larger surface area of the cable jacket, preventing concentrated radial tension that would otherwise transmit directly to the optical fibers and cause strain or damage.
Solution Approach 2:
The foam material acts as a flexible protective layer that conforms to the cable surface. This flexible interface allows the clamp to apply holding force while the foam's compliance prevents rigid transmission of stress to the fragile optical fibers inside the cable.
2Object-affected harmful factors
If heat-shrink material is used to protect the cable during clamping, then protection is provided, but there are risks associated with heat application to the cable
Solution Approach 1:
The foam material serves as a disposable protective element that can be applied directly without thermal processing. Unlike heat-shrink material that requires heat activation and poses thermal risk to the cable, the foam provides immediate mechanical protection through its compressible structure, eliminating the need for heat application near the sensitive optical fibers.
3Strength
If adhesive is used to secure the protective material to the cable, then secure attachment is achieved, but the adhesive may damage the cable jacket or fail at high temperatures
Solution Approach 1:
The foam material is designed to be self-securing through mechanical interlocking or friction fit with the clamp, eliminating the need for adhesive application. This self-service approach avoids the risks of adhesive damage to the cable jacket and eliminates adhesive failure modes at elevated temperatures, as no chemical bonding agents are involved.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces strain on fiber optic cables, protects them from damage, and allows for secure clamping across various diameters and temperature ranges, including high temperatures, without adhering to the cable jacket and avoiding risks associated with heat-shrink materials.
Implementation Method 1
self-amalgamating tape is between the clamp and the cable jacket and the clamp compresses the self-amalgamating tape
Data Source
AI summary
Disclosed herein is a method including wrapping a self-amalgamating tape around a portion of a cable jacket of the fiber optic cable to provide a wrapped portion; and clamping the fiber optic cable at the wrapped portion with a clamp. Upon clamping, the self-amalgamating tape is between the clamp and the cable jacket and the clamp compresses the self-amalgamating tape.