Dead-end shoe apparatus for removable powerline coupling
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Solution Overview
Problem
Traditional tap connectors in overhead powerline assemblies are difficult to remove, posing safety risks and material wastage during maintenance, as they require excessive force and time, diverting linemen's attention and increasing the risk of accidents while suspended.
Innovation Solution
A dead-end shoe apparatus with a capping mechanism, coupling mechanism, and connection clamp that allows for the removably coupling of conducting lines, eliminating the need for tap connectors by enabling secure and efficient transmission of electrical current between lines without the need for separate tap connectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional tap connectors are used to connect main conductor lines and jumper lines, then electrical current transmission is achieved, but the connectors become difficult or impossible to remove, requiring excessive force and time for maintenance
Solution Approach 1:
The connector is divided into separate components: a C-shaped metal component with grooves, a removable metal wedge, and optional powder cartridge. This segmentation allows the wedge to be inserted for secure connection and later removed for maintenance without damaging the main connector structure, resolving the contradiction between connection stability and removal ease.
Solution Approach 2:
The connector transitions from a static permanent connection to a dynamic removable connection. The metal wedge can be inserted to create a secure wedged connection during operation, and later removed when maintenance is needed, allowing the system to adapt between requiring stable connection and requiring easy removal based on operational phase.
2Reliability
If tap connectors are used to secure conducting lines, then current transmission between lines is enabled, but maintenance requires linemen to spend excessive time suspended in the air
Solution Approach 1:
By separating the connector into modular components (C-shaped component, wedge, powder cartridge), the maintenance process becomes simplified. The wedge can be quickly removed and replaced without requiring complex disassembly or cutting operations, significantly reducing the time linemen must remain suspended while maintaining secure connection during operation.
Solution Approach 2:
The metal wedge acts as a consumable component that can be easily replaced. Rather than attempting to undo permanent connections, the wedge is designed to be removed and reinstalled as needed, transforming a time-consuming maintenance operation into a quick component replacement task.
3Strength
If tap connectors require excessive force for removal, then secure connection is maintained, but safety risks increase for linemen performing maintenance
Solution Approach 1:
Dividing the connector into separate components eliminates the need to apply excessive force to a monolithic structure. The metal wedge can be removed by simply pulling it out from the C-shaped component, avoiding the dangerous unbending or cutting operations required by traditional connectors, thus maintaining connection strength while eliminating safety risks.
Solution Approach 2:
The design converts the potential harm of difficult removal into a benefit by using a wedge mechanism that is intentionally easy to remove. The wedge's tapered shape provides strong holding force during operation but allows for simple extraction when needed, transforming the removal difficulty from a harmful factor into a controlled, safe maintenance procedure.
4Reliability
If traditional connectors are used, then conducting lines are securely connected, but material wastage occurs when lines must be cut during maintenance
Solution Approach 1:
By separating the connector from the conducting lines themselves, the design allows the lines to remain intact. The C-shaped component and wedge provide the connection function without requiring the lines to be cut or permanently modified, enabling maintenance without material wastage while maintaining connection integrity during operation.
Solution Approach 2:
The metal wedge is designed as a recoverable component rather than a consumable that damages the lines. It can be removed, stored, and reused for future maintenance operations, eliminating the need to discard portions of the expensive conducting lines that would otherwise be wasted when using traditional connectors.
Data Source
AI summary
An apparatus and method for enabling removable coupling of conducting lines in a powerline assembly is disclosed. In one embodiment, a dead-end shoe apparatus is disclosed that comprises a capping mechanism, coupling mechanism, and connection clamp, the connection clamp facilitating the removable coupling of conducting lines of variable diameters to the apparatus. In another embodiment, a method of selectively transmitting electricity in a powerline assembly is disclosed, wherein conducting lines are removably coupled to dead-end shoe apparatuses to facilitate the transmission.