2396 Design exam help on processes

[chrisjw3330]

Hi
I am resitting my 2396 tomorrow and going through my past papers I have a question that I stumbled on last time out. The training provider I failed with are no longer in business, they weren't very good, so I am on my own.

The questions are ;

A 230v single phase circuit is wired using a multicore 70c thermoplastic cable having 1.5mm2 conductors and 49m in length.
It is protected by a 16a BS88c,PScc reading at the origin of the circuit is 110a.

Q. Determine if this circuit has adequate short circuit protection?

And -

Q. How do you determine if a circuit breaker will protect the live conductors in line with 434.5.2?

Not necessarily looking for answers but a breakdown of the process would be greatly appreciated.

Thanks

Chris

 

[Strima]

I remember doing mine. You may start, pens down....

Where did that three hours go and what just happened???

 

[Spottydogs]

Yep that middle hour just disappeared. Can you recall how long it took for results? I expect it will be well into January now?

 

[Strima]

Took about 10 weeks for the results to come through.

 

[Spottydogs]

Passed with Merit, pretty pleased with the result!

 

[Strima]

Well done, I was overjoyed with a simple pass. IIRC only 40% of my written test peers passed that part.

 

[Strima]

Have you started your project yet?

 

[Spottydogs]

Not sure on the pass mark this time round, maybe the report will be out soon. Didn’t like to ask tutor how others had got on.

I made a very brief start on the project, answers first couple of questions and began sourcing some suitable luminaries etc. But towards end of the course I decided it was best to focus on the exam, no point going too far with project if I hadn’t got through that!!

Just need to get my head down now between work and family and start chipping a few hours off.

 

[Zdb]

What type of building are you designing for your project ?

 

[Strima]

Not sure on the pass mark this time round, maybe the report will be out soon. Didn’t like to ask tutor how others had got on.

I made a very brief start on the project, answers first couple of questions and began sourcing some suitable luminaries etc. But towards end of the course I decided it was best to focus on the exam, no point going too far with project if I hadn’t got through that!!

Just need to get my head down now between work and family and start chipping a few hours off.

Take my advice, even if you dedicate a couple of hours a week stick to it. I aimed to complete mine within 6 months and it still took me a year.

Who's the company/college you taking it with?

 

[Spottydogs]

What type of building are you designing for your project ?

Electrical Training Centre!

 

[Spottydogs]

Hi all, beginning to make a start on the project now. Does anyone have any example projects they would be able to share? Obviously I know they’re all different, I’m just interested to get some ideas on how best to present it. For example how did you do your cable runs/lengths without it looking a mess. How did you present your calcs in electronic format (I’ve not really done much with excel). Any other time saving tips would also be welcome!

 

[Zdb]

I can't seem to upload any files other than images to this thread. P.M me your email address and I'll send a template over.

 

[Deleted account]

I did mine just over a year ago. I found the questions easy enough, but I just didn't have time. 3 hours goes by pretty quickly.
I got to 2 hours 45 mins and had only answered 7 questions, so I just scribbled what I thought was nonsense for the last 3 questions in the hope of grabbing a few more marks.

Amazingly I did pass. Guess I must have answered the first seven questions really well.

Good luck

 

[Spottydogs]

Sounds familiar Pete. I was frustrated after the exam that with a little more ‘real world’ time I could have done a better job of some of the questions. However I got through it, so I must have done well enough on the earlier questions!

Finding time around work and normal family life is definitely a challenge and I need to keep motivating myself not to just say ‘I’ll do some next weekend’.

 

[Strima]

I've attached a couple of examples of circuit sheets and one question I did for my project. This format may not be ideal for you but it worked for me. Please feel free to bastardise as you wish.

Make sure you answer each question, you may feel as if some of your answers repeat themselves but this is just the nature of the project.

DB1 Way 1-3 HVAC.pdf

DB1 Way 2L2-Coffee Machine.pdf

Max Demand.pdf

Edit: And as for getting time, I decided to dedicate one day a month to this, a couple of hours and you'll only just get into the swing of things. I manged to book a small conference room in work so I wouldn't be disturbed. However there might be a company in your local area that rents out hot desks etc. I gave in trying to do this at home due to too many distractions.