Insulation resistance testing - combined L & N test

[bigbadal13]

Good Morning all,

When you are doing the combined L&N to earth test on a circuit that contains vulnerable items, do you record the result in all 3 columns ? And do you have to mark the results that you have done the combined test?

Thanks

 

[Richard Burns]

L+N - E is recorded as Live to earth only, the live to live is left as not tested, if you have L-E, N-E, L-N then just fill out L-E and N-E and note on the comments that the test was the combined test.