Lazy apprentice getting tested

[High Tower]

Your boss says he thinks about 4mm that means he wants you to work it out, get the info on the panels, find out the rating and do your cable calcs and do them neetly so you can present them to him. Most panels only require about 3a so even 2 of them should only come to less than 10a, 1.5mm will carry way more than this.

13a spur at origin, fused down to 3a at the load.

 

[Nearly there]

I worked it out and decided to go with 2.5mm
He said ive got a surprise for me
We went to the warehouse and there was no mains board dist board or anything
Some gypsies stole everything even the main board so now I have to fit a small one
just for the intruder alarm
He told me to figure out what type of protection to use
Id jus think a normal 6a RCD protection will do

 

[High Tower]

They are intruder alarms so you don't want them tripping out because of faults on other circuits!

Rcbo all the way mate!

 

[Nearly there]

6a RCBO protection should be fine ey

 

[High Tower]

Should be fine mate