110v volt transformer testing and completion of a periodic inspection report

[bigpaul]

Hi,

I need to test and certify an existing 110 volt distribution board. however, I am having trouble completing the standard BS7671 schedule of test results.

Firstly
What is the tripping time? 5 seconds ( TABLE 41.6 Refers) or 0.3 Seconds or 0.8 seconds ( TABLE41.1 refers)

The distribution board is fed from a 240v source, through a transformer to the 110 distribution board.

With regard to the schedule of test result. What is the origin?

I assume I should be testing both "legs" of the transformer for an EFLI i.e. each 55volt side.

If so when I record the KA at the origin of the installation do I use the EFLI across the phase to record the KA?

RCD protection for 110volt outlets. Does anyone know if you need to do this?

I really do need some direction on this can anyone help as NICEIC seem to give conflicting answers.

Thanks