Tracer Wire Grounding Rod Structure for Accurate Utility Detection
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Solution Overview
Problem
The increasing use of nonmetallic utility lines poses challenges for detection, as traditional magnetic detection methods fail, necessitating the use of tracer wires, which require accurate grounding at both ends to facilitate reliable utility line identification without causing line strikes.
Innovation Solution
A tracer wire grounding rod with a cylindrical outer surface, a pointed end for easy insertion, a cavity for a conductive prong, and a channel to stabilize the wire, along with a cap for protection and moisture prevention, ensures reliable connection and reduces corrosion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If tracer wire is buried with nonmetallic pipelines to enable detection, then utility line identification becomes possible, but the risk of line strikes increases due to high-frequency voltage jumping to unintended targets
Solution Approach 1:
The patent changes the electrical parameters of the tracer wire system by providing selective grounding at different locations along the wire. This allows control over where current enters and exits the tracer wire, enabling low-frequency energization that reduces the risk of high-voltage jumping to adjacent lines while maintaining detection accuracy.
Solution Approach 2:
The patent introduces grounding rods as intermediary elements that facilitate controlled current flow through the tracer wire. These ground rods act as mediators between the tracer wire and earth ground, enabling safe energization and detection while preventing harmful voltage buildup that could cause line strikes.
2Measurement precision
If low-frequency voltage is applied to tracer wire to maximize electrical energy for accurate identification, then detection accuracy improves, but the complexity of proper grounding at both ends increases
Solution Approach 1:
The patent segments the grounding function by providing grounding capability at multiple discrete locations along the tracer wire rather than requiring complex grounding at both ends. This allows flexible configuration where grounding can be established at convenient locations, simplifying the overall system while maintaining detection accuracy.
Solution Approach 2:
The grounding rod design incorporates multiple functions: it provides electrical grounding, protects the tracer wire from damage during installation, and can be selectively placed at different locations. This multi-functionality reduces the need for separate components and simplifies the overall grounding system complexity.
3Reliability
If tracer wire ground rod is placed deep within the earth to ensure proper grounding, then grounding reliability improves, but replacement and maintenance become difficult
Solution Approach 1:
The patent makes the grounding system dynamic by allowing the grounding rod to be removed and repositioned. The rod is designed to be extractable from the ground and can be relocated to different positions along the tracer wire, enabling easy replacement and maintenance while maintaining grounding reliability through selective placement.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The grounding rod provides a secure and durable connection for tracer wires, enhancing detection accuracy while minimizing the risk of line strikes and corrosion, ensuring effective utility line identification even in complex configurations.
Implementation Method 1
a substantially cylinder outer surface terminating in a point that facilitates rod insertion into the ground
Implementation Method 2
The opposite end of the grounding rod is a cavity that accommodates a conductive prong
Implementation Method 3
The cap provides a tight seal between the grounding rod's outer surface and an insulated portion of the tracer wire to reduce the chances of moisture ingress into the opening
Data Source
AI summary
A tracer wire configured to be situated on, or adjacent to a buried utility line is provided. The tracer wire allows the hidden utility line to be quickly and accurately identified. A tracer wire grounding rod is interconnected to the tracer wire and provides a means by which electrical current used to identify utility line can travel through the earth to a ground point. The tracer wire grounding rod has a prong residing in a cavity that receives one end of the tracer wire.