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← TechnologyWhich outcome results when a circuit breaker with inverse-time characteristic trips in a high-humidity environment?
A)Reduced trip time due to corrosion rate✓
B)Increased contact resistance lowers threshold
C)Thermal runaway in surrounding conductors
D)Arc flash intensity reduces significantly
💡 Explanation
When a breaker operates in high humidity, increased corrosion causes resistance changes in the bimetallic strip because electrolytic film formation alters its expansion rate during overload, thus changing the response time. Therefore, reduced trip time occurs, rather than increased resistance, runaway, or lower arc because proper material dynamics are compromised.
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