Quick Connect Cable Junction Box for Bypass Operations
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Solution Overview
Problem
In bypass operations for inspecting and repairing ring main units, the challenge lies in connecting a power supply point and laying bypass cables over long distances in urban areas, where spare sections of ring main units are scarce, leading to increased construction work, operation time, and safety risks.
Innovation Solution
A quick connect and disconnect cable junction box is designed to directly connect an incoming cable of a ring main unit with a bypass cable, utilizing a box body with insulators, copper busbars, connection wires, T-shaped cable terminals, and linear adapters, enabling a temporary bypass power supply line without affecting user power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a bypass cable is connected to a distant ring main unit with spare section, then power supply point connection is achieved, but cable laying distance increases and construction work amount increases
Solution Approach 1:
The patent introduces a cable junction box as an intermediary device that enables direct connection between the incoming cable of the ring main unit and the bypass cable. This mediator eliminates the need to search for distant spare sections, as the junction box creates a local connection point that reduces cable laying distance while ensuring reliable power supply connection.
2Stability of the object's composition
If a traditional connection mode is used, then structural stability is maintained, but connection speed is slow and operation time is prolonged
Solution Approach 1:
The patent segments the connection system into modular components: a cable junction box, pre-fabricated cable assemblies with connectors, and standardized terminal connections. This segmentation allows for rapid assembly and disconnection while maintaining stable electrical connections, significantly reducing operation time compared to traditional continuous wiring methods.
Solution Approach 2:
The patent employs pre-fabricated cable assemblies with pre-installed connectors and terminals. These components are prepared in advance with proper insulation, bonding, and connection elements, allowing for quick installation at the job site without time-consuming field preparation, thus reducing operation time while ensuring connection stability.
3Reliability
If bypass cable is laid over long distance, then power supply point is reached, but safety risks increase
Solution Approach 1:
The cable junction box serves as a protected intermediary that houses all connection points, insulation elements, and bonding components in a single enclosed structure. This localization of connection activities eliminates the need for long-distance cable laying through complex urban environments, thereby reducing exposure to safety hazards such as road crossings, traffic, and environmental exposures while maintaining reliable power connection.
Data Source
AI summary
The present disclosure provides a quick connect and disconnect cable junction box, including: a box body, insulators, copper busbars, connection wires, T-shaped cable terminals, linear adapters, and an insulation spacer. The insulators, the copper busbars, the connection wires, and the T-shaped cable terminals are positioned inside the box body. The linear adapter includes a conductive rod, an insulation layer, a quick engagement connector, and a housing. One end of each of three linear adapters is electrically connected to the T-shaped cable terminal inside the box body. The three linear adapters, three T-shaped cable terminals, three connection wires, and three copper busbars form a three-phase electrical path. During operation, the three copper busbars are correspondingly connected to three phase lines of an incoming cable of a ring main unit; and the three linear adapters are engaged with quick connectors of three bypass cable connectors via the quick engagement connectors thereof.