SWA Cable Under Floor

[Deleted member 14631]

Got a real pain of a Client who keeps changing there mind and not listening to me

I am putting a New Small DB in to a new extension and was going to run a 3 core 10mm SWA cable to it from the meterbox. The run was nice, along the outside wall through a hole and up a utility room wall.

However they now want me to resite the new DB to a porch. The most Direct, Shortest and simple route to the new porch area is across the new Kitchen Slab Floor before the Screed goes down. The Floor will also have hot water underfloor heating in it

Was wondering any comments on the floor solution as the alternative to avoid the floor is a very long external wall and trenching run

 

[malcolmsanford]

You can run SWA direct under the floor, what size sub main are you thinking of running.

 

[Deleted member 14631]

I am putting a New Small DB in to a new extension and was going to run a 3 core 10mm SWA cable to it from the meterbox.

It was in the Original Post

 

[telectrix]

It was in the Original Post

think malcolm means what amperage

 

[malcolmsanford]

It was in the Original Post

Yes

think malcolm means what amperage

No but thanks Tel for bailing me out lol

I saw sub mains, new DB SWA and ...........ahhhh 16mm^ at least, never read the 10mm^ bit, I'm going senile here lol.

 

[Deleted member 14631]

think malcolm means what amperage

Oh Sorry

Working on a Design Load of 60 amps

 

[telectrix]

Yes

, I'm going senile here lol.

happen sto us all mate

 

[pushrod]

Agree about the position. Porches make me think of little add ons that eventually leak, not the ideal place for a CU/submain IMO.
If going under the floor does that lend itself to using ordinary cable in conduit - maybe a bit cheaper and more accessible?

 

[Deleted member 14631]

Yes but I was trying to avoid a join from SWA outside property to ordinary Cable inside

 

[telectrix]

adaptable box, gel filled .

 

[pushrod]

Yes but I was trying to avoid a join from SWA outside property to ordinary Cable inside

Obviously you can see the whole situation so might be inappropriate, but nothing to stop you having a bit of wall mounted cable unless it is exposed to direct sunlight.

 

[Engineer54]

How about extending existing cables and/or installing a couple new circuits. Why the hell do you need a remotely separated CU anywhere in a standard sized house. Need to increase size of existing Cu??, ....So be it!! Even add an extra CU if you must, ....But NOT remote from the existing CU!!!!