Why Can't Insulators Be Used In Current-carrying Insulation Structures?

dead end insulators As a structural element that blocks current flow, its primary function is to separate the potential difference between a charged conductor and the grounded structure, maintaining system safety and stable operation. dead end suspension insulators is essentially a high-resistivity material with very few free electrons in its atomic structure, preventing current from flowing freely within the material. This characteristic determines its essential function as an isolation material rather than a current-carrying material.

For current-carrying insulating structures, the material must simultaneously withstand large currents and maintain a certain level of electric field stability. polymer deadend insulator Long-term exposure to high-current environments will generate internal heat accumulation and electromagnetic force effects, the combined effects of which far exceed the electrothermal-mechanical load range designed for traditional porcelain dead end insulators under normal operating conditions. Recent technical evaluations show that suspension insulator lacks quantitative model support for heat accumulation and mechanical stress response under short-circuit or sudden high-current conditions, which will affect the reliability and predictability of suspension composite insulator in current-carrying structures.

composite suspension insulator The high resistivity of the selected ceramic, glass, or composite insulating materials is necessary to prevent current flow, but this also means that in current-carrying scenarios where current must flow, their physical properties do not support current conduction or handling the resulting thermal and electromagnetic effects. In power transmission line design, this characteristic makes the polymer suspension insulator more suitable as a support and isolation component than as a current-carrying component.