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MENTAL MODEL · M6281

Breakdown Voltage

Breakdown Voltage
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Version 1.0.0 · Updated 2026-07-28

CORE DEFINITION

Breakdown voltage is the minimum voltage that causes an insulating medium to become conductive over a period of time. When the voltage applied to an insulating medium is sufficiently high, electrical breakdown occurs, allowing current to pass through.

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Breakdown voltage is the minimum voltage that causes an insulating medium to become conductive over a period of time. When the voltage applied to an insulating medium is sufficiently high, electrical breakdown occurs, allowing current to pass through.

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In insulators, charge carriers are normally bound. When the external electric field strength exceeds the material's critical value, carriers are excited or undergo collisional ionization, leading to a chain multiplication that makes the medium conduct instantly. In engineering and social analogies, this refers to a person or system accumulating 'deformation' under sustained pressure, and upon exceeding a threshold, an irreversible and violent reaction occurs, often without obvious warning signs before breakdown.

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Source support: Explicit

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    zh.wikipedia.orghttps://zh.wikipedia.org/wiki/%E5%87%BB%E7%A9%BF%E7%94%B5%E5%8E%8BZH · Explicit
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