Question 9Electricity/Electronics - 1st Asst/Chief70% to pass
When performing an absence-of-voltage test before commencing repair work, at the minimum where must the absence-of-voltage test be performed?
AI Explanation
The correct answer is B) At the point of contact where the work will take place.
When performing an absence-of-voltage test before commencing repair work, it is essential to check for the absence of voltage at the specific point where the work will be conducted. This ensures that the worker is not exposed to any live electrical circuits, which is a critical safety measure. Checking the voltage at the main feeder circuit breaker, the load side disconnect switch, or the source disconnect branch circuit breaker does not provide the necessary confirmation that the work area is de-energized. The absence-of-voltage test must be performed at the point of contact where the repair work will take place to ensure the safety of the worker.
Related Questions
#7 For the purposes of safety and determining the shock hazard, nominal voltage is defined as the normal electrical system design voltage. This can be determined from what is displayed on nameplates, dataplates, schematics, or single-line diagrams. What does the nominal voltage represent? #8 When performing an absence-of-voltage test, a live-dead-live test may be required in conjunction with the absence-of-voltage test. What is the purpose of the live-dead-live test? #10 When taking voltage measurements, for reasons of electrical safety, what should be the proper sequence of actions? #11 Why should an electrical worker determine the nominal voltage of a circuit first before making contact with the circuit? #12 In figure "A" of the illustration, the battery Vbb and resistor Rb are in the circuit for what purpose? Illustration EL-0022