Need help with Design question

[eli]

Hi

I need help, im not sure how to answer this type of question. Its a basic circuit design question. ive got a book and it says that these are the eight basic steps in a simplified form.


1. Determine the design current Ib
2. Select the rating of the protection In
3. Select the relevant rating factors (CFs)
4. Divide In by the relevant Cfs to give tabulated cable current carrying capacity It
5. Choose a cable size to suit It
6. Check the voltage drop
7. Check for shock risk constraints
8. Check for thermal constraints


How would you work out each stage?. Any ideas, are there any sample questions just to show working out so i can get a idea.

thanks.

 

[Apollo]

Get this book. Its got everything in there you need.

Hope that helps

 

[eli]

the link doesnt work

 

[Apollo]

Try it now.

 

[eli]

thanks it works.

 

[eli]

has anyone got any questions similar to this and working out

 

[IQ Electrical]

Get this book. Its got everything in there you need.

Hope that helps

I'll second that, great book, especially for 2391-20 students.

 

[eli]

thanks for the replies