Cable size from the meter to the fuse board

[beansause]

I am in the process of doing a bit of renovation and i need to run a cable from the meter to the distribution board, the distance is 45m. 25 of them are under ground and then it goes up through the cavity and into the attic and over to the board. Will 16mmsq swa be to small or will i have to go to a 25mmsq swa? it's a standard domestic house 3 bed, bathroom, kitchen, sitting room, utility etc.

 

[onions1066]

You need to do your calcs, loadings etc. can't give an answer without all he info

 

[trev]

Underground then up through the cavity to the attic then down to the CU? Anyone else seeing a shorter way? If there's extensive renovations going on then you may as well save a few metres.
Not a job for an amatuer though I'm afraid, no matter how enthusiastic you are.

 

[beansause]

what info is required for the calc?

 

[onions1066]

Just read again bit of renovation! 45 meters! That's a long way? Have to got a midgets tape measure or is it really that long.

 

[trev]

what info is required for the calc?

That's why it's not a job for an amatuer mate. Sorry.

 

[wildgoose]

FORTY FIVE METERS!!!!!

If you haven't already done it then:-
- Over 3 meters, you should advise your DNO so they can come and fit a fused isolator (Ca-Ching!!!!!!).
- If it is buried or not fully visible along the whole run, then it must be mechanical protected.
- Calculations need to be done to ensure the correct sized cabling for the load.

 

[trev]

Just out of interest, what's the problem with the existing cable?

 

[beansause]

Just read again bit of renovation! 45 meters! That's a long way? Have to got a midgets tape measure or is it really that long.

that's the distance.

That's why it's not a job for an amatuer mate. Sorry.

that's not much help,
I can gather the info for the calculation's if i knew what was required.

 

[beansause]

Just out of interest, what's the problem with the existing cable?

dug up many years ago

 

[onions1066]

I think the point that is being made is if you don't know what is required to work it out you probably won't be able to work it out if we tell you what you need, with your chosen route there are many variables, get an electrician in.

 

[beansause]

FORTY FIVE METERS!!!!!

If you haven't already done it then:-
- Over 3 meters, you should advise your DNO so they can come and fit a fused isolator (Ca-Ching!!!!!!).
- If it is buried or not fully visible along the whole run, then it must be mechanical protected.
- Calculations need to be done to ensure the correct sized cabling for the load.

i know it will be swa steel wired armoured
if i knew what was required for the calculation's i'd provide them?

 

[Octopus]

How big is the house? 45 meters is long.

what sparking experience do you have?

 

[beansause]

I think the point that is being made is if you don't know what is required to work it out you probably won't be able to work it out if we tell you what you need, with your chosen route there are many variables, get an electrician in.

PROBABLY!! try me and we'll see sure.

 

[Silly Sausage]

Get yourself one of these, use it and leave the rest to the electrician.