What will help me understand and pass my 2391-52?

[ppelec100]

Hi guys,

I’m looking to book my testing and inspection 2391-52, I have very limited experience on testing. I have completed my AM2 and the testing part was pretty easy.

Of course the 2391 will be more in depth etc and I’ve been hitting the books going through guidance note 3 and bs7671 and I’ve got The practical guide to inspection, testing and certification of electrical installations by Christopher kitcher which I will be going through.

Was thinking of putting a CU and some sockets switches lights etc on a bit of ply and wiring it up and have a go at just adding faults or getting someone else to and trying to find the faults

I’ve been watching mainly electrical on YouTube and paid for the subscription to get his full videos and have learnt quite a bit so far.

Might look at buying the napit EICR codebreakers…

What else can I add/do to gain more knowledge?

What are things in the exam that I might find quite tricky that I should try and cover or things that are basic but catch people out?

Any other tips?

Thanks

 

[Tom256]

Will they go through all of these things during the course? The centres seem to say they only focus on the theory side and not practical but there are practical prep days which I will pay for…

I haven’t got much experience on three phase circuits but I understand it but motors I have no experience at all except for college and exams

The motor circuit is normally and triple pole and neutral socket for a motor. They should demonstrate the testing and sequence of tests and give you practice time, the sequence is important to remember.

Yes they should demonstrate and it is not a motor it is a motor circuit.

So for example initial verification of a motor circuit, never been live you are the guy coming in to verify. What might be some of the issues that could affect how that circuit perform correctly - motor rotation say?
They should go through all this but that aside you now in your own time have a think if you were the inspector what are the possible issues, how would you run the tests to identify those possible issues.

How would you test through a DOL starter?

 

[Tom256]

Will they go through all of these things during the course? The centres seem to say they only focus on the theory side and not practical but there are practical prep days which I will pay for…

I haven’t got much experience on three phase circuits but I understand it but motors I have no experience at all except for college and exams

That is true it is not really a practical class it is expected you have some knowledge of practical testing before the class.
I do a lot of industrial testing and the basics get you through. Understand the process of what you are looking to achieve with each bank of tests. They have a sequence for a reason.
As I said in an earlier post - Testing of an RCD - as an exercise write out the way you would go about this, why you are doing it as you are.

 

[richy3333]

I've done the old and new 2391. On the new one less that 30% of people passed the theory so didn’t continue on to the practical. The course does assume you are confident with testing for the practical side of things. There is no training on how to use a test meter etc

For the theory exam some of the questions I had built upon a previous answer. There was a lot of maths and calculations to do. You might have a (say) 4 or 5 part answer section and if your answer to question 1 is wrong it might make your subsequent answers to the remainder of the section wrong also because you have to rely on data you have calculated.

The practical - there’s a 3 phase board. It feeds a single phase board but also has other circuits off it. A motor circuit, sockets and lighting, plus some FP200 for a fire alarm feed. The single phase DB has sockets and lights on them with various switching scenarios. Fill in your EICR and EIC as you progress as there’s little time for doing all the work.

I used my own tools and tester which was fine.

 

[Tom256]

I've done the old and new 2391. On the new one less that 30% of people passed the theory so didn’t continue on to the practical. The course does assume you are confident with testing for the practical side of things. There is no training on how to use a test meter etc

For the theory exam some of the questions I had built upon a previous answer. There was a lot of maths and calculations to do. You might have a (say) 4 or 5 part answer section and if your answer to question 1 is wrong it might make your subsequent answers to the remainder of the section wrong also because you have to rely on data you have calculated.

The practical - there’s a 3 phase board. It feeds a single phase board but also has other circuits off it. A motor circuit, sockets and lighting, plus some FP200 for a fire alarm feed. The single phase DB has sockets and lights on them with various switching scenarios. Fill in your EICR and EIC as you progress as there’s little time for doing all the work.

I used my own tools and tester which was fine.

I think the point made here on knowing the calculations for verification of results etc is a good one.
With one question leading onto the next not knowng one aspect could cost your several questions.

That said know the basics well and your can fly through it.
I took mine in Glasgow, during the winter and during the period I was moving to Yorkshire. I drove back to Glasgow the morning of the Test ready for it starting at 10 am. 2 hours usual stuff, however, snow was forecast from early afterrnon over the Pennines and I did not have time for getting stuck. Had it done in 20 minutes and gone. The looks.