What is the purpose of an Arc Flash Detection system inside HV switchboard cubicles?
Direct Answer
Option D: Detect light flash via fiber-optic sensors and trip main breaker in milliseconds before pressure explosion develops
Arc flash detection systems utilize fiber-optic sensors to detect the intense light emitted during an arc fault. By triggering the main circuit breaker in milliseconds, the system interrupts the fault current before the pressure wave causes an explosion, significantly reducing the risk of severe injury and equipment destruction.
All Options
Detailed Explanation & Context
Arc flash detection systems utilize fiber-optic sensors to detect the intense light emitted during an arc fault. By triggering the main circuit breaker in milliseconds, the system interrupts the fault current before the pressure wave causes an explosion, significantly reducing the risk of severe injury and equipment destruction.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • High Voltage Safety Officer & Switchgear Operations (HV).
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