2391 Course pass rate

[Ashley-Joseph]

I have been meaning to get around to doing this course just wondering what the pass rate is ? How hard is it, what kind off study material would I need. I do alot of condition reports already and fault finding.

 

[JBW175]

When I did mine a few years ago it was split into 4 parts, don’t know if it still is.

1. A visual inspection, where you get a photo pack and have to code them accordingly.

2. A section called 4 short answers, where you get 4 questions and have to give them written answers. Can’t remember much else about that part.

3. The online exam, a little bit on the cheeky side but you’ll be ok if you know GN3, where to looks in the regs, and you’ve done your homework. Pass marks around 75% but been told it can vary either way.

4. The practical assessment, where most people fall down. You’ll have a 3P installation with various circuits that you’ll need do an EICR on, and a sub main fed from the 3P board that has around 4 circuits on that you’ll need to complete an EIC for as a new install.

You’ll naturally find 3 / 4 faults as you’re going along testing and code accordingly. Low IR, no continuity on R1R2 readings etc….

You’ve got 2.5 hours to complete, and if you can finish testing and leave an hour for the paperwork you’re on to a winner.

Bearing in mind though, that’s easier said than done, out of 9 on my course only 2 of us passed, some didn’t even finish testing and some didn’t leave enough time and complete the paperwork.

There’s different books out there you can buy to help you prep but don’t know how good they are as I just used GN3 & my BBB. Also check out sparky ninja 2391 page on FB.

 

[SJD]

As mentioned, assuming the format is still similar, the practical is the hard part, where you can easily run out of time.

If you are not too familiar with testing, I'd recommend to construct your own test board, something vaguely similar to what you'll meet on the day, and practice with your own MFT. The only bit you might have to improvise on is not having 3-phase at home. It also helps to use your own MFT in the practical, as you are hopefully very familiar with it, and don't waste any time getting familar with one you've not used before.

 

[Petej999]

I have been meaning to get around to doing this coarse just wondering what the pass rate is ? How hard is it, what kind off study material would I need. I do alot of condition reports already and fault finding.

BS7671 a copy of the OSG, some past papers if available, proper training, and experience , DO the course and take the exam after completion

 

[Ashley-Joseph]

BS7671 a copy of the OSG, some past papers if available, proper training, and experience , DO the course and take the exam after completion

What about GN3

 

[Petej999]

What about GN3

That as well been a long time since I took the course mate sorry

 

[James]

i think when I did it, 3 people passed from a class of about 15.

it is no walk in the park but if you practice and work hard, it’s not so tough

best of luck

 

[tidytech]

I just recently passed (July-24) the 2391-52 Initial and Periodic Inspection and Testing of Electrical Installations. Some tips, even if they are basic, they helped me and others:

• It is certainly hard but not impossible!!
• Preparation and practice is essential. Do at least 4 Initial inspections and EICRs before the exam, including filling in the paperwork EXACTLY as it should be, every box
• Make TODO and checklists, your OWN, write them into the notes section of the OSG or BS7671. Keep it short, an essential guide.
• Before each major step, pause and think, what to check for safety, what to connect, what to probe... easy to miss a step
• On the back of the EIC and other paperwork, write your steps and all values recorded, make it CLEAR, easy to understand and include the symbols like Ohms and ms (milliseconds) etc
• Take a Clipboard with a hard back and a pen that hooks into a holder
• Take a pencil and an rubber, some values you may not be sure of, write in pencil, then into pen and rub out pencil
• Take your own tools, you are familiar with them
• Take work multi-pocket trousers
• Understand the purpose of every test, and the range of acceptable values, for example on a ring final, step 1 (end to end) will indicate values for step 2 and step 3
• 3phase, if you are not used to this, GET USED TO IT, else will bite you in the rear end!
• Take OSG and BS7671, GN3, they are essential for a sanity check too
• Allow time for the paperwork, it takes much longer than you may think.
• Prepare ahead of time, know and note down the BS numbers for common MCB, RCBOs and main switches, time saved looking them up or struggling to read the worn out writing on the rig!