HELP PLEASE!!! 2365/615 electrical system designs

[John J]

So I’ve recently started my level 3 course and I’m doing electrical system designs the one with the hotel extension and pool and cafe block I’ve done question 1 but stuck on all of question 2 some guidance would be appreciated thanks.

 

[tild01]

View attachment 86309
Column 1 Circuit name
Column 2 applicable 7671 regulations
Column 3 reasons for RCD Omission
Column 4 RCD Required? Y/N

Thanks for both of your comments, really helpful, I'm gonna use that information to keep going at it. Even if I get it wrong worse thing that happens if the tutor hands it me back to try again hopefully

 

[Roodini]

this has been a helpful link as i am about to go to college to do my design week then my 2391-052, 52 practical assessment and exam the week after.

 

[Adamm_]

Heyo lads, I’ve currently finished my Level 3 course and only have this Hotel Design project to hand in to complete it. I have 3 weeks to hand it in before I fail.

Due to COVID, job losses, family losses, I’ve only just managed to pick myself up and get round to it. Having finished my course a couple of months ago, I’m kind of stuck on a lot of questions and unsure where to go from here.

Mainly the drawings, unsure of the correct symbols to use, colours to use and where to place them.

If anyone could give some guidance on this project an help with a few questions it would he much appreciated, I already see some of the posts in the past can help so i’ll also use them.

Feel free to pm me or reply

thank you

 

[Lister1987]

Heyo lads, I’ve currently finished my Level 3 course and only have this Hotel Design project to hand in to complete it. I have 3 weeks to hand it in before I fail.

Due to COVID, job losses, family losses, I’ve only just managed to pick myself up and get round to it. Having finished my course a couple of months ago, I’m kind of stuck on a lot of questions and unsure where to go from here.

Mainly the drawings, unsure of the correct symbols to use, colours to use and where to place them.

If anyone could give some guidance on this project an help with a few questions it would he much appreciated, I already see some of the posts in the past can help so i’ll also use them.

Feel free to pm me or reply

thank you

Throw th up here and we'll see what we can help with. A fair few questions have been asked in recent months about the hotel project so you might find your answer with a bit of scrolling and searching

 

[SteveSparks]

Hi guys, new to the forum. Can some one tell me how I can get access to the trainee forum? Everytime I click on the link Apply to Gain Access to Trainee-Only Forum, it stays on the same page.

I'm probably just being a bit thick!

 

[Fender]

Easy method, use the adiabatic equation to find out the size

S = ✓ I^2 * t / k

I = the current required to operate the device
t = disconnection time required for the device
k = factor given for the cable selected - Typically 115

So for argument's sake, let's say we have a fault current of 320 (taken from your trip curves) a time of 0.1 (taken from your device operating times) and a K factor of 115 (taken from the tables following the trip times)

S = ✓ I^2 * t / k
S = ✓ 320^2 * 0.1 / 115
S = ✓ 102,400 * 0.1 / 115
S = ✓ 10,240 / 115
S = 101.19 / 115
S = 10.05

As there is no conductor with a CSA of 10.5, you select the next size up, in this case 16mm^2

The above is purely and illustration and values may not be accurate but it serves to show how to lay out the equation so that you can understand what is going on at each step.

Hope this helps

I'm with you all the way, apart from 101.19/115 equaling 10.05. I feel awful for pointing that out.

Sorry

 

[Fender]

Ah. Just noticed the date....

 

[Lister1987]

I'm with you all the way, apart from 101.19/115 equaling 10.05. I feel awful for pointing that out.

Sorry

Don't, the point was to put across the layout/concept, thr fact that maths is wrong just gives me a chuckle.. that'll learn me for trying to be a smartarse ?

 

[Lister1987]

Hi guys, new to the forum. Can some one tell me how I can get access to the trainee forum? Everytime I click on the link Apply to Gain Access to Trainee-Only Forum, it stays on the same page.

I'm probably just being a bit thick!

Drop a PM to @Dan or @Lou , follow the template given and you'll be in soon

 

[Gooner85]

@Loki be much appreciated completely lost Atm

I’m doing this aswell and completely lost did you manager to do it all

 

[BrumElecEng]

Hi all,

Just started doing the 2365-305 assignment myself. As with the above advice given by the experienced/expert members, I'll try and ask one focused question at a time
Is there a website that we can see all of the BS EN 60617 symbols needed for the assignment?

Thanks

 

[Lister1987]

Most listed here; Electrical Symbols | TLC Electrical - https://www.tlc-direct.co.uk/Technical/Symbols/Index.htm

In fairness you'll find that ones you need in OSG, atypically you'll be using sockets, light fixtures, light switches, motors, emergency lighting and the standard symbol for a CU

 

[BrumElecEng]

Most listed here; Electrical Symbols | TLC Electrical - https://www.tlc-direct.co.uk/Technical/Symbols/Index.htm

In fairness you'll find that ones you need in OSG, atypically you'll be using sockets, light fixtures, light switches, motors, emergency lighting and the standard symbol for a CU

Thanks for the help lister! Think I have nailed questions 1,2,8,9,10. Going to give the others a shot now but will be back if I need some hints/tips

 

[Ljs1996!]

Thanks for the help lister! Think I have nailed questions 1,2,8,9,10. Going to give the others a shot now but will be back if I need some hints/tips

Hi on question 1 did you find an example on the internet to use

 

[Lister1987]

Hi on question 1 did you find an example on the internet to use

Likely yes, it's not a hard one to grasp; Find a manufacturer (Fusebox, Wylex, BG), Download/Print the datasheets and use them in your project. Not sure why this is hard for some (not a dig at OP, purely an observation as it's not that first time this has come up)