Can someone work this out for me

[rudeboy500]

Hi sorry to bother you guys. I am stuck on this question hope you can help

Question

A 3KW,230V storage heater is supplied by 15m of multi-core 70 degrees PVC cable clipped direct to the wall. Protection is BS EN 60898 type C circuit breaker. Ambient temp is 30 degrees.
determine the
1 Load Current
2 CB Rating
3 cable rating
4 cable size
5 allowed voltage drop
6 Voltage Drop

Thank you in advance
Merry Christmas and happy new year

 

[Specialist]

I know what you mean tel, but he's apparently doing the 2330 level 3 so you would have hoped this would'nt be the 1st time he'd come across this calc. You forgot Needlework by the way lol.

 

[DaveyD]

it's the whole education system is to blame. we did calcs like this for "0" levels, now lads in school are taught cooking, and other useless subjects, so are ill prepared for the college work.

lol, "When I were lad men were proper men ...."

 

[mackers]

Wouldn't say cooking useless basic needs may be I'm 40 i did cooking has been more use than learning about crop rotation in the 16 century and the new waste of time media studies etc saying that I'm getting pretty fed up of cheese on toast and Christmas log LOL

 

[telectrix]

evedrything you buy has cooking instructions anyway. don't take a genius to work out the difference between microwave from chilled and same from frozen. anything more ambitious, that's why we get married, innit?

 

[mackers]

i supose so ,but your knackered if she cant cook lol
love how these threads start off about something to do with electrics then end up about cooking! love it

 

[Specialist]

evedrything you buy has cooking instructions anyway. don't take a genius to work out the difference between microwave from chilled and same from frozen. anything more ambitious, that's why we get married, innit?

Well, there are a few other reasons tel. But that's a pretty good 1, you know if my missus reads this i'm dead meat

 

[GLENNSPARK]

well theres something else that rhymes with cooking that the fairer are useful for n all.....couldn`t live without em n all that...lol...

 

[Specialist]

well theres something else that rhymes with cooking that the fairer are useful for n all.....couldn`t live without em n all that...lol...

Well Glenn, whatever could you mean? i've only got 3 Bambinos & i don't know about things like that:drool5::tounge_smile:

 

[johnboy6083]

http://www.electriciansforums.net/e...-electrical-forum/46947-cable-selection.html#

I wrote a summary in this thread to help someone struggling with cable calcs.

 

[mackers]

I wore a summary dress lol

 

[rudeboy500]

Do all you guys take this biscuit out of people in this forum.

This course I am doing is not for fun. I am not made of money.

This course is to better myself and provide for my family so what harm is it that I ask for a bit of help.

Thank you to the guys who went out of there way to help me.
.
Thank you to the people who thought this was a joke, everyone struggles with some thing and I hope one day if you are stuck with a question i know!!!

I will be there to help you

Thanks

Rudeboy500

 

[mackers]

hi rudeboy,
if you r coming into the building trade banter and **** taking is the norm!
no fun working with people who can't take and give abit.
trouble is sometimes in this day and age it is easier to just ask the internet and let other people do the math
but the whole idea is for you to be able to go find the imformation in the regs etc to solve the problems yourself
i dont know how old you r but when i was training there was no internet (good i feel old) so you looked at the books and spoke to the lecturer,
in the faceless world of emails and texts the humour can be lost
reading the posts most have tried to help but sometimes we get side tracked
how this helps happy new year

 

[Guest112]

i see where your coming frome rudeboy500 my college was awful also i did a day release for 3 years and the lecturers there were useless bar one i should say, most of them were literally just handing out old pass papers and sometimes telling us the answers in advance, i couldnt believe it.

i have started threads in the past to no success, these old sparks had it different in their day they were taught, we were taught how to pass exams, and they have a go because your going the extra mile its silly really (i just put it down to having too much time on their hands) lennys post from page to with his calc template is great ive saved it on my comp id just go with that a bit of small calcs p/v=i and have a look at the tables in the regs mate

 

[Guest112]

read my post and you may possibly understand, colleges are different these days and the lecturers are mainly rubbish sparks who got too lazy to walk around site anymore, and i know id rather speak to sparks doing these calcs in the real world in real situations rather than simulated pretend ones, my college was awful and most people i speak to out of college say the same thing these days

@mackers

 

[rudeboy500]

Hi peterdainels,
I understand what your saying, ever since I started the electro technology course from level 2, the lecturers have some what been under par in their way of teaching.

Some Lectures cannot understand that all students coming in to this industry are not working in the electrical industry or have anything to do with the electrical industry.

Take my example I don't work in this industry I do 3 hours a week at college 6pm to 9pm trying to absorb as much as I can by the time next week comes, only 10% of what I learn't is still in my head, this is because I have work commitments, family commitments.

The lectures should ask what industry you are in ? and go from there I am in my forties plus, life at the minute is hard trying to keep a job this is why I want something to fall back on just in case the inevitable happens and I lose my job due to redundancies.

This college course in like a fast track course and City and Guilds don't make it any easier what we are being taught and what comes up on the exam paper is nearly always completely different which totally annoys me. There question are based around an everyday working life of an apprentices.
All they want to do is make money

sorry for being so bitter.

Thanks
Rudeboy500