Insulator Cover Securing Clip for Wind Stability
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Solution Overview
Problem
Existing insulator covers for high voltage power lines are ineffective in preventing rotation or tilting due to high winds, especially in asymmetrical configurations, which can lead to reduced protection against wildlife contact and electrical shorts.
Innovation Solution
A semi-rigid insulator cover system with an internal securing clip and pin mechanism that accommodates both symmetrical and asymmetrical configurations, preventing rotation and tilting by securing the cover to the insulator through a clip in the narrowed neck area and pins below the cable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a prior art insulator cover is used without securing mechanisms, then the cover can be easily installed and removed, but the cover rotates or tilts during high winds, reducing protection effectiveness
Solution Approach 1:
The cover system is divided into separate functional components: the cover body, the securing clip, and the pin. The securing clip attaches to the insulator neck while the pin passes through the cable to anchor the cover, allowing each component to perform its specific function independently while working together to prevent rotation and tilting
Solution Approach 2:
The securing clip acts as an intermediary element between the cover and the insulator neck, providing a positive mechanical engagement that prevents cover rotation. The pin serves as an intermediary between the cover and cable assembly, anchoring the cover position. These intermediary components transfer and distribute wind loads without requiring complex integration
2Adaptability or versatility
If a prior art insulator cover is designed for symmetrical configurations, then it fits standard insulators, but it seats at an angle in asymmetrical configurations, compromising cover performance
Solution Approach 1:
The securing clip is designed with an asymmetrical geometry that accommodates both symmetrical and asymmetrical insulator configurations. The clip's shape allows it to engage with the insulator neck regardless of cable position, while the pin can be positioned to align with the cable in any configuration, ensuring proper cover orientation without requiring custom covers for each scenario
Solution Approach 2:
The cover system is designed as a universal solution that works with both symmetrical and asymmetrical insulator/cable configurations. The securing clip and pin mechanism provides multi-functional adaptation, allowing the same cover design to be used across different installation scenarios without compromising orientation accuracy or performance
3Object-affected harmful factors
If the insulator cover is made larger to provide better wildlife protection, then coverage area increases, but the cover has more play between cover and insulator, making rotation more likely
Solution Approach 1:
The securing clip is installed on the insulator neck before the cover is placed, creating a pre-positioned anchor point. The pin is positioned to align with the cable before final cover installation. These preliminary actions ensure that when the cover is installed, it is immediately secured in the correct position with minimal play, preventing rotation while maintaining adequate coverage area for wildlife protection
Data Source
AI summary
A dielectric cover system for an insulator supporting a high voltage conductor is molded to fit over the insulator to cover at least a top portion of the insulator and the conductor in contact with the insulator. A clip internal to the cover allows the cover to be freely placed over the insulator and then effectively restricts an inner diameter of the cover at a reduced diameter neck portion of the insulator, such that the clip blocks the cover from being lifted off the insulator and rotated about the insulator during high wind conditions. The clip is particularly effective where the conductor is supported in a side groove of the insulator, so the insulator and conductor form an asymmetric structure.