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2391 practical


revjames

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Hi

I have done the 2391 course material on a 4 day intensive course. Sitting theory on 22nd Oct - not too worried about that. More concernend about the practical exam for some reason.

I am quite happy with finding the 12 faults on a DB and finding 2 faults with an insulation tester, there is also a test to do with 'interpreting earth loop impedance tests' that I'm not sure of, but the daunting task is the big test rig.

Anyone any suggestions, books etc that will help prepare?

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When i did the 2391 i passed the practical with flying colours but failed the theory. I was only told to study the guidance notes 3. Good luck anyway.

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Read through all of the test procedures in either the OSG or GN3, and if you can set up a practice board with DB, 1 Ring, 1 Radial, 1 One Way Lighting Circuit, and 1 Two way Lighting Circuit and practice testing them over and over according to the test procedures in the correct procedure. The testing aspect is all about familiarity, you will be nervous and nee to have the test procedures as second nature.

Of course if you do a lot of testing anyway it will be a breeze.

The version in the exam will be a three phase board with some circuits off, and a single phase submain, from memory there is a motor starter so need to be familiar with what to do with that, a dimmer which will require linking out.

Other thing to have down pat is your isolation procedures. I use a board as described above to get our guys ready for there exams, and they all feed back that it is an enourmous help, as you get limited rehearsals on the intense courses.

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Thanks for the replies. I sat the theory paper under exam conditions (the Dec 08 one) just to see and did it in an hour and a half and got 76% so quite confident on the theory, I am from a heavy industryu background so things like 3 phase boards, motor starters and isolation procedures are 2nd nature. I have done some testing and inspections but not to these standards and these forms so all a bit new to me. I will read up on the OSG and GN3.

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I muat be a glutton for punishment. I am supposed to be doing 2391-20 shortly too!

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I am not sure you would need to do 2392 is you pass 2391, my understanding is 2392 is a cut down version of 2391 (mainly single phase) and is used as a pre 2391 course also.

So if this is all true, I think you would be better investing your time and money on another course after completing 2391?

Either way, I have no test experiance. a couple of years working as a mate but that I dont think is of much help as was not testing related work really. I have some good books I am reading up on and once I feel more confident ill be signing up for 2391.

The above comment about motors and so on are a worry! I better read up on those.

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hi

the "big rig" is a periodic, so you can test in any order you like......now the easiest way is this:

1 incoming polarity test and safe isolation

2 Ze

3 pfc

4 R1+R2 all the radials on the 3 phase board( to do 3 phase socket, push contactor in with screwdriver)

5 R1+R2 the ring

(add R1+R2s to Ze to get circuit Zs results)

6 Do IR test on 3 phase board not forgetting to test at the 3 phase socket "backwards" to starter

7 transfer Zs of sub main to become Zdb of 1 phase board.

8 Do R1+R2s of radial circuits on little board

( add these to your previously obtained Zdb figure to get final Zs figs)

9 Do IR on little board not forgetting to work 2-way switching

10 ask examiner can you power up and then do RCD trip times not forgetting final button test

Does this help you out OP?

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Now thats exactly what I was after Doc, Tom - I have been assured that the only prerequisite for me to do the 2391 was the 2382 17th ed which I have.

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Now thats exactly what I was after Doc, Tom - I have been assured that the only prerequisite for me to do the 2391 was the 2382 17th ed which I have.

Yup your right, my bad, I thought u said you was doing 2392 after the 2391 :o

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Tom,

I am doing 2391-10 at the moment 'Inspection & Testing' There is also a course called 2391 -20 'design & verification' which I am doing straight after. I am also doing the 2393 building regs. The only reason that I am able to do these is because I have recently been made redundant and had a grant to do some study which I have made good use of.

James

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revjames and tom79,

me too!! need more advice please

thanks

Yes almost ready for mine, but I am going to get a tester 1st (be nice to use my tester for experiance), also my local college want

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My theory is on 22nd next week at Rotherham with the practical on 5th Nov also at Rotherham. Where are you doing yours TC?

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hi

i think a great learning tool is to test your house as there is no pressure....

on a saturday morning when the missus goes out to do the shopping print out a pir and say, "right today, i am going to get the mains out of the way" so you would fill out most of the first two pages and...... do.....

1 a safe isolation, 5 mins

2 a Ze, 5 mins- DONT FORGET THE EARTHING CONDUCTOR RE-CON

3 a pfc test, 5 mins

put the power back on and have a brew and reflect.....

next saturday, you could do say the upstairs lights and so on.-rushing to deadlines is where you slip up and you would be amazed at the problems you will uncoverheadbang

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I will be doing my pract on the 3rd Dec does the assesor give any indication if you have passed it?

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I will be doing my pract on the 3rd Dec does the assesor give any indication if you have passed it?

You should know on the day if you have passed the practical, it is the theory element you have to wait for the result of

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if you fail practical or theory test, do you get an option to just re-sit that failed part?

cheers

Yes you do Tom, can just resit the part you failed.

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You know I am thinking of doing 2392 1st, I have no real testing experience, and least then I can start taking on some jobs that I am comfortable doing, gain experience as I go, then do my 2391 after.

Only downside to this plan is in my area it seems very hard to get on a 2392, but I could travel for a few days to near London and do it....

2392 from what I read here and other places seems fine and will let me work on single phase and register as a domestic installer under part p which has got to be all good... well in theory!

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Can't believe it. just had a phone call from Connaughts and they have put off my practical - again, was supposed to be on 5th Nov. trouble was its getting further and furter away from the actual course content which isnt good....

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Now doing practical on 12th Nov. This is a pain cos it was going to be on the 5th and I would have already been there 2-4 th on the 2391-20 course. Now I have to make a special trip. So its Thursday next week to Rotherham for 2391 theory, Then there again 2-4th Nov, then Bracknell on Monday 9th, Rotherham again on 12th for 2391 practical, then again on 19-20th and finally 8th Dec Rotherham again for 2391-20 exam..... so 5 trips to Rotherham and 1 to Bracknell.... good job my cars cheap to run!

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Tom79

Yes!!!!! at the moment, very hard to study.........

how about yours????

a few bits to learn! i got all the books so I am working my way through them, still not sure if I should do 2391 or 2392, I would like to do a bit of a course testing and I think only the 2392 offer this so I might start there. Pain how far I need to go to do it but might be better in the long run.

That said if I study enought I should be ok...

How you getting on? you signed to a course yet?

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