Wedge Connector Holding Device for Cable Installation
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Solution Overview
Problem
Traditional wedge connectors used in overhead electrical applications are difficult to assemble by field operators, especially when wearing insulated gloves, due to the need to manage multiple loose pieces during screw tightening, and they do not effectively address issues like oxidation and thermal fluctuations.
Innovation Solution
A holding device is designed to securely attach a C-Frame to a cable run using a removable and reusable locking mechanism, allowing the operator's hands to be free for assembly, while maintaining a constant connection force and minimizing tool usage, and is made from materials that withstand electrical temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional wedge connectors are assembled by field operators wearing insulated gloves, then the connection can be established, but the assembly process becomes difficult and time-consuming due to the need to manage multiple loose pieces
Solution Approach 1:
The connector is divided into separate modular components: a C-shaped frame that attaches to the cable run, and a separate wedge mechanism. This segmentation allows each component to be prepared and positioned independently, reducing the complexity of managing multiple loose pieces during assembly while improving ease of operation and reducing assembly time.
Solution Approach 2:
The C-shaped frame is pre-assembled and positioned on the cable run before the wedge mechanism is engaged. This preliminary action allows the operator to have the structural component ready and secured, so that only the final tightening action is needed, significantly reducing assembly time and simplifying the operation when wearing insulated gloves.
2Reliability
If traditional wedge connectors are used, then the connection can be made, but oxidation of metallic surfaces occurs especially in salt-laden environments
Solution Approach 1:
The connector employs composite material construction with corrosion-resistant materials such as stainless steel or aluminum alloys for the C-shaped frame and wedge components. This material selection provides both mechanical strength and resistance to oxidation in salt-laden environments, maintaining connection reliability while protecting against harmful oxidative effects.
Solution Approach 2:
The design incorporates features that create a protective environment around the metallic contact surfaces, such as sealed interfaces or coating layers that isolate the metal from oxidizing agents in the environment. This protective barrier prevents oxidation while maintaining electrical conductivity, ensuring reliable connections in corrosive environments.
3Strength
If traditional connectors are used, then the connection can be established, but they do not effectively compensate for thermal fluctuations while maintaining secure connection force
Solution Approach 1:
The wedge mechanism is designed with adjustable geometric parameters that allow the connection force to be maintained across varying thermal conditions. The wedge angle and compression geometry can be optimized to compensate for thermal expansion and contraction, ensuring stable connection force despite temperature fluctuations while maintaining both strength and thermal stability.
Solution Approach 2:
The connector incorporates dynamic elements such as spring-loaded components or flexible joints that can adapt to thermal expansion and contraction of the cable and connector materials. This dynamic design allows the connection to maintain secure force while accommodating dimensional changes due to thermal fluctuations, preserving both connection strength and thermal stability.
Data Source
AI summary
An apparatus and methods of securing a C-Frame to a cable run during the installation process of a cable tap are disclosed. A holding device is removably coupled to an interface positioned adjacent to a C-Frame loosely coupled to a cable run. The holding device which is coupled to the interface is slid over and onto the C-Frame, thereby securing the C-Frame to the cable run. Thereafter, a cable tap is coupled to the C-Frame.