Solar Array Cable Hanger Structure for Strain and Tangle Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Large-scale solar photovoltaic (PV) panel array installations face challenges in wire management, including mechanical strain on electrical cables due to their weight, which can lead to damage, ground faults, and system downtime, especially under extreme weather conditions.
Innovation Solution
The use of cable hangers that suspend cables below torsion tubes or other structures in solar arrays, either directly or indirectly, to reduce mechanical strain and prevent tangling, with modular and versatile designs that can be clipped anywhere along the structure, including H-piles or I-piles, to manage cable tension and prevent damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If electrical cables are suspended between structural elements without support, then the structure remains simple, but the cables experience significant mechanical strain from their own weight
Solution Approach 1:
A messenger cable is introduced as an intermediary element between the structural elements and the electrical cables. The messenger cable serves as a support backbone that bears the mechanical strain of the electrical cables, allowing them to be suspended without direct structural support at every point while maintaining system simplicity.
2Strength
If messenger cable is used to support electrical cables, then mechanical strain on electrical cables is reduced, but the device complexity increases
Solution Approach 1:
The wire management system is segmented into distinct functional components: messenger cables for mechanical support, electrical cables for power transmission, and cable hangers for localized suspension. This segmentation allows each component to perform its specific function efficiently, reducing overall system complexity despite the addition of multiple elements.
Solution Approach 2:
Cable hangers serve as intermediary components that connect electrical cables to the messenger cable system. These hangers provide localized support points and enable flexible cable routing while maintaining the overall simplicity of the messenger cable backbone structure.
3Area of stationary object
If cables are suspended close to torsion tubes during solar tracking, then the structure remains compact, but cables may become tangled with the system
Solution Approach 1:
The cable suspension system utilizes the vertical dimension by suspending cables well below the torsion tubes through extended cable hangers. This vertical separation creates sufficient clearance to prevent cable tangling during solar tracking operations while maintaining horizontal compactness of the overall system.
4Adaptability or versatility
If cable hangers are made modular and versatile for clipping anywhere along the structure, then adaptability increases, but manufacturing complexity increases
Solution Approach 1:
The cable hanger is designed as a universal component with a standardized clipping mechanism that can be attached to various structural elements (torsion tubes, H-piles, I-piles) at any location. This multi-functional design allows a single hanger type to serve multiple purposes and locations, increasing adaptability while maintaining manufacturing simplicity through standardization.
Data Source
AI summary
In an example, a cable hanger includes a body and an upper portion. The body defines a cable retention channel. The upper portion extends from the body and is configured to suspend the cable hanger from structure of a solar array. In some embodiments, the upper portion includes a component retention clip having a base wall and two side walls that form a planar slot therebetween and the cable hanger further includes at least one grip element in the slot and coupled with at least one of the two side walls. In some embodiments, the upper portion is configured to indirectly suspend the cable hanger from the structure of the solar array and the upper portion includes a cable hanger slide-coupling element configured to couple with a discrete component retention clip that is couplable to the structure of the solar array.