2330 303 Practical Exam

[Monks]

Hello, everyone.

I have always been pleasantly surprised by the amount of people who have provided me helpful information and tips in the past on this forum, so I am appealing to everyone's good nature to hopefully help me out again!

I am due to take the 303 practical exam in 2 weeks and unfortunately our tutor has cocked-up with the time that he has (or should I say hasn't) allocated for practical lessons aimed at providing us with some background knowledge of how to search for, and diagnose, faults efficiently; in fact, we have had less than 3 hours to prepare us for this exam, and after half-term we have no more lessons scheduled with our 303 tutor.

I hardly have any experience with fault finding at work as I am always on installation jobs, but I am fairly conversant with testing. With that in mind, could anyone give me a short list of basic faults that you are most likely to come across? Additionally, which test(s) would I have to do to find/ confirm diagnosis of certain faults?

I would really appreciate it if anyone takes the time to reply to this thread in order to help me out and, should I recieve any response(s), I shall be sharing any helpful information that anyone could provide with my fellow classmates.

Thank you.

 

[Monks]

Did the exam today. To be honest, I found it harder than the 302 practical, although this could be down to my lack of experience on fault finding. I found all of the faults, though, so I would like to thank all of the people who posted help and guidance on this thread.

Many thanks, everyone. I really appreciate it.

 

[mattmoo1974]

I think th whole point of the test is for you to suss out whats wrong.
Just know your tests and in what order monks.
And remeber to do them from the start again once you ve found a problem.
As iv mentioned before they can just flick a fault in with a key
Stare at page 33 of GN3 for about a week and you wont go far wrong.unk:

 

[Wiltz11]

Could you tell me what they asked you in the exam it would be a great help.

 

[Monks]

All sorts.

First of all you are asked to identify 3 visual faults, and then you are asked to perform the safe isolation procedure on your fault rig. After that is done you are expected to find a number of faults, each with their own scenario; like 'The plumbers have been working under the floorboards and since they have left the RCD keeps tripping'. Then you go through whichever tests you think are necessary to find the fault.

It's not that bad, TBH. I was actually expecting it to be really difficult, but I found all of the faults in the end. As long as you think about what each circuit does and how electrical circults/ fault protection behaves, you should be OK.

Best of luck.

 

[Wiltz11]

Ok thanks what collage did u go to has im from bristol

 

[toofasttoosoon]

Hi Monkk pretty much hit the nail on the head regarding the 303 practical,We had work cards with faults ranging from dim lighting to socket failure.Test for insulation resistance and continuity etc.We also after all faults found tested ZS readings on all circuits and compared them with the OSG.Good luck..