Curved Channel Cable Support for ADSS Fiber
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Solution Overview
Problem
Fiber optic cables, particularly all-dielectric self-supporting (ADSS) cables, face issues with damage from excessive bending and twisting due to their minimum bend radius limitations when surplus lengths are stored along aerial transmission routes, necessitating a solution to prevent damage and maintain signal integrity.
Innovation Solution
A cable supporting device with a channel member having a curved section, top and bottom flanges, and an outer wall defining an inward-facing channel is used to securely position and manage surplus cable lengths, maintaining the cable within the minimum bend radius and preventing displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If surplus cable is stored along aerial transmission routes, then rerouting and repairs become easier, but the cable is vulnerable to damage from bending and twisting when minimum bend radius is exceeded
Solution Approach 1:
The cable support device features a curved channel section with a radius of curvature specifically designed to maintain the cable within its minimum bend radius. This curved geometry allows the cable to be stored in loops or coils without exceeding the manufacturer's minimum bending limits, thereby preventing fiber damage while enabling rerouting capability.
Solution Approach 2:
The cable support device acts as an intermediary between the cable and the aerial transmission route. It provides a dedicated curved channel that mediates the cable's path, ensuring the cable maintains proper bend radius while being stored along the transmission route. This intermediary structure protects the cable from direct exposure to damaging bending forces.
2Loss of information
If cable is stored in long lengths to minimize splices, then signal degradation is reduced, but the cable requires careful management to prevent damage from excessive bending
Solution Approach 1:
The curved channel section provides a built-in geometric solution for cable management. By incorporating the minimum bend radius into the channel's curvature, the device automatically guides the cable through proper bends without requiring complex external management systems, thus reducing overall system complexity while preventing signal loss.
Solution Approach 2:
The cable support device is designed to be self-regulating regarding cable bend radius. The curved channel geometry inherently enforces the minimum bend radius constraint, eliminating the need for additional monitoring or adjustment mechanisms. The cable naturally follows the curved path, providing self-service cable management.
Data Source
AI summary
A cable supporting device includes a channel member. The channel member has a curved section bounding an interior. A top flange, a bottom flange, and an outer wall define a channel. The channel has an opening facing the interior.