When testing insulation resistance of electric equipment and machinery, ideally when should the insulation resistance be tested for the lowest normal insulation values?
A
every time the brush rigging is adjusted
B
every 30 days whether the machine is in use or not
C
immediately after starting up the machine
D
immediately after shutting down the machine
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Question 1 / 205eccefa4bacbc34ba4d4841a
Question 1 of 205eccefa4bacbc34ba4d4841a
When testing insulation resistance of electric equipment and machinery, ideally when should the insulation resistance be tested for the lowest normal insulation values?
When testing insulation resistance of electric equipment and machinery, ideally when should the insulation resistance be tested for the lowest normal insulation values?