What are the models of suspension insulators?
2025-12-02
As a commonly used device in high-voltage transmission lines, suspension insulators serve the critical functions of supporting conductors, providing electrical insulation, and ensuring secure fixation, thereby playing an essential role in guaranteeing system reliability. Next, let’s take a closer look at the models and insulation resistance of suspension insulators.
1. What are the models of suspension insulators?
The models of suspension insulators vary depending on their shapes and specifications. Common models of suspension insulators include U-shaped, Y-shaped, letter-shaped, hook-shaped, long-blade, and short-blade types. Among these, U-shaped suspension insulators are suitable for applications with small-angle turning spans and short span lengths; Y-shaped suspension insulators are generally used in scenarios involving large-angle turning spans and long span lengths; and letter-shaped suspension insulators are primarily employed in special situations where the vertical spacing along the line can be adjusted.
2. What is the insulation resistance of suspension insulators?
The insulation resistance of suspension insulators refers to their ability, under specified test conditions, to resist the passage of conductive media between the two electrodes. Under normal circumstances, the insulation resistance of suspension insulators should exceed 10,000 megohms. If the insulation resistance falls below 10,000 megohms, the insulator must be replaced or treated to ensure the safe operation of high-voltage transmission lines.
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