HV Exit Exam • Set 5 Question 16 of 30
The electrical breakdown strength of dielectric insulating materials depends on:
✓
Direct Answer
Option D: All of the above
Dielectric breakdown is a complex function of applied electrical field stress, test waveform duration, temperature, moisture content, pressure, and internal micro-voids.
All Options
A
Nature, magnitude, and rate of rise of applied voltage
B
Physical imperfections, voids, and impurities in the material
C
Ambient pressure, temperature, and relative humidity
D
All of the above
(Correct Answer)
Detailed Explanation & Context
Dielectric breakdown is a complex function of applied electrical field stress, test waveform duration, temperature, moisture content, pressure, and internal micro-voids.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • High Voltage Safety Officer & Switchgear Operations (HV).
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