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← TechnologyWhich risk significantly increases when interrupting an inductive circuit with high inrush current using a mechanical switch?
A)Arc flash and contact degradation✓
B)Thermal runaway and insulation breakdown
C)Electromagnetic interference and data loss
D)Resonance and harmonic distortion
💡 Explanation
When an inductive circuit with a high inrush current is interrupted mechanically, a large voltage spike occurs due to Lenz's Law attempting to maintain current flow, leading to significant electrical discharge. Therefore, arc flash and contact degradation becomes a major risk, rather than runaway, EMI, or resonance which result from different conditions.
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