Advise/Help needed for testing ring final circuit accessories on a fused/unfused spur.

[Gracey]

I have posted this in the Qualifications forum but nobody was answering and I need some info for my retest on 2365 Level 3 fault finding practical (303) before next week.

My question is not on the online test, I have already done this.

I failed this test the first time round as I got caught on finding the faults on the accessories from a fused spur on a ring final circuit . This test is on the test rig Level 3.

Through Continuity and insulation resistance I found the normal faults but failed to find the others. when it came to the accessories on the spurs, I had spent 2 hours beforehand with the instructor and he never gave us any clue about the accessories. There were 6 scenarios but four of them were on the spurs on the ring, I am told all accessories are tested the same but looking through Guidance Note 3, I cannot locate that part and my retest is coming up quick so I am a bit desperate for info.

Has anyone done this exam and could offer advise?

Could anyone point me to a link on YouTube or even offer advise where I should improve?

Thank you.

Gracey
Reading, Berks.

 

[Gracey]

I am new to this forum and maybe I posted this question in the wrong section.

Maybe people cannot see the questions with all the adds on this site, very frustrating killing the popups and adds on every click on here.

I just wanted some advice from anybody or even advise on where to go, different forum or website or YouTube video.

My retest is this week so desperate.

Thank you

Gracey

 

[newfutile]

Nor really sure what your asking that GN3 does not know or can't be found.
It was a different course in my day, I guess you already checked polarity,continuity,IR, R1+R2,ZS

End to end ring on all 3 conductors,functional switching,fuse size if FCU,Cable size and any derating factors that my apply.

 

[Gracey]

It was 2 years ago I took the exam and just going for my retake now, I remember on the test rig I had to diagnose faults on generators and motors on fused spurs on a ring final circuit.

I just wanted to see some examples to cover these.