Electrical Junction Box Layout for Branch Cable Relocation
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Solution Overview
Problem
The challenge lies in relocating existing branch circuit electrical cables within electrical enclosures without requiring additional length of sheathed cable, especially when the cables are already incorporated into the building structure and there are no unused lengths available outside the enclosure.
Innovation Solution
A novel electrical enclosure is designed to serve as a junction box, allowing cable entry through an angled surface adjacent to the original enclosure. This enables the relocation of electrical cables without needing additional sheathed cable length, by integrating the new enclosure with the existing one.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If branch circuit cables are routed through existing electrical enclosures and incorporated into building structure, then electrical system stability and structural integration are improved, but cable relocation becomes impossible without additional sheathed cable length
Solution Approach 1:
The invention divides the electrical enclosure system into modular components - a first enclosure housing the load center and a second enclosure serving as a junction box. This segmentation allows cables to be routed through the first enclosure for structural integration while providing a separate second enclosure for cable access and relocation, thus maintaining both stability and adaptability
Solution Approach 2:
The second enclosure acts as an intermediary junction box between the load center in the first enclosure and the building structure. It provides an intermediate access point where cables can be connected, extended, or relocated without disrupting the integrated routing through the first enclosure, enabling flexibility while maintaining structural stability
2Ease of manufacture
If cable entry points are provided only on the original enclosure, then enclosure simplicity and manufacturing ease are improved, but cable routing flexibility and relocation capability deteriorate
Solution Approach 1:
The invention segments the enclosure system into two separate enclosures, each with its own cable entry points. The first enclosure maintains simple manufacturing for load center integration, while the second enclosure provides additional entry points for flexible cable routing and relocation, resolving the contradiction between manufacturing simplicity and routing flexibility
Solution Approach 2:
The second enclosure adds a new spatial dimension for cable access by providing entry points on multiple surfaces including adjacent sides and angled surfaces. This dimensional expansion allows cables to approach from different directions, increasing routing flexibility without complicating the manufacturing of either enclosure
3Adaptability or versatility
If additional cable length is required for relocation, then cable routing options are improved, but installation complexity and material requirements worsen
Solution Approach 1:
The second enclosure serves as an intermediary junction box that eliminates the need for additional cable length. Cables routed through the first enclosure can be directly connected to the second enclosure at its cable entry points, providing routing flexibility without requiring extra sheathed cable or increasing installation complexity
Data Source
AI summary
A system and method for relocating branch circuit electrical cables which enter an existing electrical enclosure, and for which additional cable length is unavailable, to a novel enclosure presenting cable entry points favorably positioned to receive the existing branch circuit cables without additional length required, and in a manner considered safe and repeatable for multiple branch circuit cables to be relocated at present or in the future.