As shown in figure "A" of the illustration,...

Question 1 / 270705eccefa3bacbc34ba4d47e61

Question 1 of 270705eccefa3bacbc34ba4d47e61

As shown in figure "A" of the illustration, under what conditions is the test proving unit used in conjunction with the high voltage probe? See illustration EL-0158.

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Question 1 of 27070

As shown in figure "A" of the illustration, under what conditions is the test proving unit used in conjunction with the high voltage probe? See illustration EL-0158.

If the question has a related picture, it will appear here.

🔍 Key Concepts

• Proper safety procedure for using a high voltage probe before approaching potentially energized equipment • Purpose of a test proving unit (to confirm the tester itself is working correctly) • Difference between detecting the presence of voltage and verifying the absence of voltage on high-voltage systems

💭 Think About

• When working high voltage, at what two critical moments do you need to be absolutely certain that your voltage detector is functioning correctly? • If the probe failed partway through the job, how would you know unless you checked it at specific times? • Why is it especially important to trust the reading that shows no voltage present before you touch the equipment?

✅ Before You Answer

• Determine whether best practice is to prove the tester only once, or at more than one point in time around its use • Focus on the phrase "for detecting the presence of and verifying the absence of voltage" – which choice fully supports both of those safety needs? • Ask yourself: which option matches standard electrical safety practice of "test – use – re-test" for voltage detectors?

Question 1 of 27070

As shown in figure "A" of the illustration, under what conditions is the test proving unit used in conjunction with the high voltage probe? See illustration EL-0158.

before using the probe each time for detecting the presence of and verifying the absence of voltage only

after using the probe each time for detecting the presence of and verifying the absence of voltage only

before and after using the probe each time for detecting the presence of and verifying the absence of voltage only

whenever it is suspected that the probe is not accurately detecting the presence of voltage

Question 1 / 270705eccefa3bacbc34ba4d47e61

Question 1 of 270705eccefa3bacbc34ba4d47e61

As shown in figure "A" of the illustration, under what conditions is the test proving unit used in conjunction with the high voltage probe? See illustration EL-0158.

Back

Question 1 of 27070

As shown in figure "A" of the illustration, under what conditions is the test proving unit used in conjunction with the high voltage probe? See illustration EL-0158.

If the question has a related picture, it will appear here.