Sub main board question

[maluka]

Thanks needasparks.
Just been on to the doncaster website as i was unsure of the csa of the cpc of the 10mm T&E and as it comes out at 4mm. My plan will be to running an additional 6mm cpc.



Edit
Sorry for the late response but i could not reply posts till today

 

[netblindpaul]

Why are you using Flat Twin & CPC in trunking there is no need?
In fact it is detrimental as the sheath takes up unnecessary space.

 

[supasparxs]

if your running trunking why don't you wire everything in singles and use MCB's?
if there is a suspended ceiling why don't you use cable tray above the ceiling?

 

[maluka]

We had a drum of about 70m of T&E so couldn't justify the £200 spend on singles. As for the trunking, there is plenty space as it is 100mm x 100mm and about 20% full.

 

[Engineer54]

We had a drum of about 70m of T&E so couldn't justify the £200 spend on singles. As for the trunking, there is plenty space as it is 100mm x 100mm and about 20% full.

Save your T&E for another job and use singles on this installation. Your already having to supply a separate single CPC conductor, so bite the bullet and do things properly by using the right installation cable....