HV Exit Exam • Set 1 Question 4 of 30
What mandatory step must be taken immediately after opening an HV circuit breaker and isolator?
✓
Direct Answer
Option C: Prove equipment dead using approved calibrated HV voltage detector, then apply safety earths
Testing with a certified HV voltage indicator ('prove dead') is mandatory before touching conductors or earthing.
All Options
A
Touch with bare hand
B
Spray water
C
Prove equipment dead using approved calibrated HV voltage detector, then apply safety earths
(Correct Answer)
D
Turn on generator
Detailed Explanation & Context
Testing with a certified HV voltage indicator ('prove dead') is mandatory before touching conductors or earthing.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • High Voltage Safety Officer & Switchgear Operations (HV).
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