Centrally-Mounted Ground-Rod Driver for Utility Vehicles
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Solution Overview
Problem
Current methods for grounding utility vehicles working on or around energized power lines are difficult, time-consuming, and often not used due to the need for extra equipment and safety concerns, such as electrified ground areas and potential damage to vehicles.
Innovation Solution
A centrally-mounted ground-rod driver system that automatically deploys and removes a ground-rod from beneath the utility vehicle, minimizing the electrified radius near workers and eliminating the need for manual effort and additional equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual ground-rod emplacement method is used, then grounding can be achieved, but the process becomes difficult and time-consuming
Solution Approach 1:
The utility vehicle performs grounding automatically through its own integrated driver assembly, eliminating the need for manual intervention. The system serves itself by autonomously driving the ground-rod into the ground and securing the grounding cable, thereby reducing both time and labor while maintaining reliability
Solution Approach 2:
The ground-rod is positioned and driven into the ground before the utility vehicle begins work. The system prepares the grounding path in advance by automatically driving the rod and securing cables, ensuring grounding is established prior to any potential electrical discharge events
2Reliability
If manual ground-rod emplacement is used, then grounding is achieved, but extra equipment must be brought to the work site
Solution Approach 1:
The grounding system is merged with the utility vehicle itself. The driver assembly, ground-rod storage, and grounding cable are all integrated into the vehicle's structure, combining multiple functions (transport, grounding rod deployment, cable management) into a single unified system rather than requiring separate equipment
Solution Approach 2:
The utility vehicle serves multiple functions: it transports workers and equipment, performs the grounding operation, and manages the grounding components. The vehicle is designed to be a multi-functional platform that eliminates the need for dedicated grounding equipment by incorporating grounding capabilities directly into its structure
3Reliability
If ground-rod is driven near the work site, then grounding is achieved, but utility workers must avoid the electrified ground area
Solution Approach 1:
The ground-rod is extracted from the work area and positioned beneath the utility vehicle. By relocating the grounding point to under the vehicle rather than near the workers' operational zone, the electrified ground area is separated from the workers, reducing their exposure to electrical hazards while maintaining grounding effectiveness
4Reliability
If ground-rod is left in the ground, then grounding continues, but utility vehicle may be damaged when driving away
Solution Approach 1:
The grounding system is designed to be dynamic rather than static. The driver assembly can automatically retract the ground-rod from the ground, and the grounding cable can be retracted or disconnected, allowing the vehicle to move without the ground-rod while maintaining grounding capability when needed. This dynamic capability prevents vehicle damage during movement
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
Facilitates safe and efficient grounding of utility vehicles, reducing the risk of electrical discharge and equipment damage, while ensuring compliance with safety regulations by automating the grounding process.
Implementation Method 1
a driver assembly configured to drive the ground-rod into an underlying surface under the chassis
Implementation Method 2
a grounding cable associated with the ground-rod so as to allow an electrical discharge through the grounding cable, through the ground-rod, and into the underlying surface
Data Source
AI summary
A utility vehicle includes a chassis and a centrally-mounted ground-rod driver system. The chassis presents a central area. The centrally-mounted ground-rod driver system is secured to the chassis at the central area. The centrally-mounted ground-rod driver system includes a ground-rod, a driver assembly configured to drive the ground-rod into an underlying surface under the chassis, and a grounding cable associated with the ground-rod so as to allow an electrical discharge through the grounding cable, through the ground-rod, and into the underlying surface. The ground-rod is driven in beneath the central area of the chassis such that a radius of electrified ground of the underlying surface is away from a utility worker.