Cable calcs questions needed 4 revision

[gullyboy_131]

Has anyone got any questions and answers for cable calcs to help towards my 2330 l3 inspecting and testing written exam, got to be 17th edition

cheers if any can help

 

[gullyboy_131]

here we go no has got any and we are all in the same boat so here goes

A 230v 4.5Kw load is supplied using single core 70 degrees c thermoplastic cables in conduit, the protection device is a BS 88 type 2 ,length of circuit is 25m and ambient temp is 35 degrees c

a)calc design current

b)the min fuse rating

c)correction factors that apply

d)minimum cable rating

e)cable size

f)actual voltdrop

good for revision

i'l put my workings out up later

 

[Andy™]

here we go no has got any and we are all in the same boat so here goes

Are you wanting someone to work this out for you or is this a sample question for others to guess?

 

[Badger]

no what he hopes is someone brainy person will do all the work for him to get the answer in class correct in the mornind :^O :^O :^O

JOKE BY THE WAY BEFORE ANY SLAPS ON THE WRISTS ARE HANDED OUT

 

[gullyboy_131]

no what he hopes is someone brainy person will do all the work for him to get the answer in class correct in the mornind :^O :^O :^O JOKE BY THE WAY BEFORE ANY SLAPS ON THE WRISTS ARE HANDED OUT

Ib=19.56

In=20amp

ca 0.94 cg 1.00

ci =n/a cc = n/a

Iz = 21.7a

cable size 2.5mm

vd= 8.8v

 

[gullyboy_131]

Are you wanting someone to work this out for you or is this a sample question for others to guess?

trying to help others out mate,B-)