2391 question

[brucelee]

hi all
heads gone with all study would appreciate a little help with this one

an isulation resistance test is to be carried out on a large, complex installation before it was put into service. the test value obtained between live conductors and earth was 10 Mohm State

two possible reasons for this value, excluding connected equipment and cable damage

cheers

 

[kablue2000]

hi all
heads gone with all study would appreciate a little help with this one

an isulation resistance test is to be carried out on a large, complex installation before it was put into service. the test value obtained between live conductors and earth was 10 Mohm State

two possible reasons for this value, excluding connected equipment and cable damage

cheers

you are testing everything in parellel so it will reduce your overall reading

 

[brucelee]

you are testing everything in parellel so it will reduce your overall reading

hi mate cheers
all the study turned me head to mush i know this think i need to give the study a rest as its the exam tomorrow
so if i put down
number of circuits connected in parallel
and the summation of individual circuit insulation resistance
is that ok cheers mate