Protective Device Insulating Mounting Hardware
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Solution Overview
Problem
Electrical devices in power systems pose a risk of power outages and potential animal fatalities due to objects becoming conducting paths between energized and grounded terminals, with existing insulation methods being inadequate in preventing current flow.
Innovation Solution
A protective device with a cover and insulating interface is positioned over the mounting hardware of electrical devices, providing electrical insulation between energized and grounded terminals, using an insulating material capable of withstanding high voltage and designed for easy installation without tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional insulation methods are used for mounting hardware, then the device provides basic electrical insulation, but the insulation is inadequate in preventing current flow between energized and grounded terminals
Solution Approach 1:
The protective cover is made from composite insulating material that combines high dielectric strength properties with mechanical durability, enabling it to withstand high voltage stresses while providing reliable physical protection. This composite material structure ensures adequate insulation between energized and grounded terminals that traditional single-material solutions cannot achieve.
Solution Approach 2:
The protective cover features rounded external surfaces and edges instead of sharp corners, which eliminates points of high electric field concentration. This curvature design reduces the risk of electrical breakdown and flashover, providing more reliable insulation protection compared to conventional flat-surfaced insulators.
2Reliability
If a protective cover is added over the mounting hardware, then electrical insulation is improved, but the device complexity and material usage increase
Solution Approach 1:
The protective cover is designed as a separate, modular component that can be independently manufactured and installed over existing mounting hardware. This segmentation allows the insulation function to be added without redesigning the entire mounting structure, maintaining simplicity while improving electrical safety.
Solution Approach 2:
The protective cover is designed as a thin-walled shell structure that provides adequate electrical insulation without excessive material usage. The shell form factor allows it to conform to the mounting hardware while maintaining compact dimensions, avoiding the bulk and complexity of traditional insulator designs.
3Reliability
If the protective device is designed with traditional installation methods, then adequate insulation is provided, but installation requires tools and is time-consuming
Solution Approach 1:
The protective cover incorporates self-retaining features such as interference fits, snap-in mechanisms, or friction locks that enable it to secure itself to the mounting hardware without requiring additional fasteners or tools. This self-service design allows installers to quickly install the protective cover by simply positioning it over the hardware, significantly reducing installation time and complexity.
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 solution effectively reduces the risk of power outages and animal fatalities by preventing current flow between energized and grounded terminals, enhancing system reliability and safety while minimizing material usage and bulk.
Implementation Method 1
an insulating interface coupled to the base of the cover such that, when the cover is positioned over the mount, the interface contacts the support structure to substantially electrically insulate the mount
Data Source
AI summary
A device includes a cover that includes a base. The cover is configured to be positioned over a mount that couples a support structure of an electrical device to another element. The electrical device includes an energized terminal that is configured to connect to an electrical power system and a grounded terminal. The device also includes an insulating interface coupled to the base of the cover such that, when the cover is positioned over the mount, the interface contacts the support structure to substantially electrically insulate the mount. A system includes an electrical device, a support structure that holds the electrical device on the first side, a mount configured to couple the structure to another element, the mount being grounded during operation of the system, and a protective device positioned over the mount.