HV Exit Exam • Set 5 Question 6 of 30

Which of the following is a generally recognized primary hazard of working on High Voltage electrical systems?

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Direct Answer

Option A: Arc Flash / Arc Blast

Arc flash and arc blast represent the most severe hazards in high-voltage systems, capable of causing catastrophic thermal burns, pressure waves, and shrapnel injuries. Per IEC 60092-503 and marine safety standards, mitigating these risks requires strict adherence to Permit to Work (PTW) procedures, proper isolation, and the use of certified arc-rated personal protective equipment.

All Options

Arc Flash / Arc Blast (Correct Answer)

Electromagnetic induction

Static charge accumulation

Acoustic resonance

Detailed Explanation & Context

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • High Voltage Safety Officer & Switchgear Operations (HV).

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