Physics · Electrical Engineering
Which of the following statements is INCORRECT regarding the insulation resistance test between an installation and earth?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1For testing the whole installation, the test is conducted with the main switch in the off position, completely bypassing it.✓
- 2The earth terminal of the megger is connected either to the earth continuity conductor or directly to the earth electrode.
- 3This test is conducted to determine the quality of insulation of wires and cables used, ensuring it is sufficient to prevent leakage current to earth.
- 4A testing set known as a megger is used for the test.
Correct answer
For testing the whole installation, the test is conducted with the main switch in the off position, completely bypassing it.
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