Little help please?

S

SimpleSimon

Gents. Studying for the 2391 exam Thursday, I've come across some practice questions that I can't get, would you mind helping me please?
First one coming up

An insulation resistance test was carried out on a large complex installation before it wasput into service. The test values obtained between live conductors and earth was 10Mohms. State
A) two possible reasons for this value excluding connect equipment and cable damage.
B) whether measured value is acceptable
 
Last edited by a moderator:
Just thought - could be something to do with lower ambient temperature when Zs being taken. As that would lower resistance and so give lower reading.
 
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