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← TechnologyWhich increased risk occurs when under-sized circuit breakers are installed within an industrial robotic welding cell?
A)Inaccurate positional encoder feedback
B)Three-phase motor winding insulation breakdown
C)Premature robotic arm joint wear
D)Arc flash incident propagation✓
💡 Explanation
Increased likelihood of arc flash propagation appears with undersized breakers because *overcurrent protection* fails to trigger quickly enough during faults, therefore allowing the arc flash energy and duration rise dangerously, rather than limiting them.
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