What is the primary hazard of working on High Voltage marine equipment compared to Low Voltage?
Direct Answer
Option C: Severe electric arc flash explosion, high-energy blast, and arcing across air gaps
High voltage systems possess immense fault energy. Unlike low voltage, an arc flash generates extreme thermal radiation, pressure waves, and molten metal spray. IEC 60092-503 emphasizes that the primary risk is not just shock, but the catastrophic explosive energy released during a short circuit or insulation failure.
All Options
Detailed Explanation & Context
High voltage systems possess immense fault energy. Unlike low voltage, an arc flash generates extreme thermal radiation, pressure waves, and molten metal spray. IEC 60092-503 emphasizes that the primary risk is not just shock, but the catastrophic explosive energy released during a short circuit or insulation failure.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • High Voltage Safety Officer & Switchgear Operations (HV).
Practice Full HV Set 1
Test yourself with 30 interactive questions, live timer, and instant score.