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← TechnologyWhich hazard triggers 'arc flash' during transformer maintenance?
A)Loose conductor connection forming a plasma✓
B)Oil breakdown impeding convective cooling
C)Ferromagnetic domain saturation reduces inductance
D)Harmonic resonance distorts sine waveform
💡 Explanation
During transformer maintenance, a loose conductor near energized components can initiate an 'arc flash' through plasma formation via *partial discharge*, because this creates an uncontrolled current path; therefore large energy release occurs, rather than current disruption arising from inductive saturation.
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