1.5mm cable loading

[Teridactyl]

A disused fused switch was connected to a boiler that was removed. The wire running to the switch was 2.5mm and the person wants a socket to run a tumble dryer (2300w). This is the only device that can be connected to the cable.
When checking the CU, it appeared that it was 1.5mm connected to a 6A mcb (B type). I am rechecking as it's next to a 10mm so might have looked a bit deceptive. It appears that the cable run is very small (3 mts) as it goes into wall and out.
I could use a 10A or 16A (to allow for start up current) in place of the 6A which would leave only 2amps for cable (17.5 Imax Table 4D1A method 3). This seems a little close to maxing out cable (using 16A) for me and heavy loading of the mcb (using 10A)
The alternative is to start pulling up carpets and floor boards and running a new cable adding to cost and time for client.
Any suggestions (sensible) as best way to approach this
Cheers

 

[davesparks]

What exactly do you think is wrong with having a current which is less than the tabulated CCC of a cable flowing through it?

 

[telectrix]

the dryer will only pull 10A when on max. heat. a 10A MCB will run happily up to 14A for an hour. fit a 10A and be done.

 

[Teridactyl]

thanks guys for that and the quick reply :yesnod:

 

[Octopus]

Hold on..... you first say its 2.5mm to the fcu, then its 1.5mm at the CU

Which is it???

 

[jase]

1.5mm is good for a 16A radial, with a single socket on it the dryer will have a 13A fuse in the plug and will be pulling 10A.

 

[baldsparkies]

If you max out a 10 amp mcb and its in a plastic consumer unit it will all go up in flames.
We are all doomed amendment 3 tells us so.
Well I jest of course but you have to wonder these days !!
No smoke without fire fellas.

 

[Plonker 3]

If you max out a 10 amp mcb and its in a plastic consumer unit it will all go up in flames.
We are all doomed amendment 3 tells us so.
Well I jest of course but you have to wonder these days !!
No smoke without PLASTIC.

Corrected that for you.

 

[trev]

So the cable is rated at X amps, the device which will be supplied by that cable pulls <X amps.
This is a bad idea because?

 

[baldsparkies]

So the cable is rated at X amps, the device which will be supplied by that cable pulls <X amps.
This is a bad idea?

Keep going Trev this is a bad idea because !!

 

[trev]

Keep going Trev this is a bad idea because !!

Noted and changed mate

 

[Silly Sausage]

Keep going Trev this is a bad idea because !!

Nit picking or what?
Tell him to sod off Trev!

 

[baldsparkies]

Nit picking or what?
Tell him to sod off Trev!

Do you wanna build a snowman ?
Sod off Baldie !!
Ok bye :dunce2: xx

 

[frecossais]

Calm doon guys, it's Friday night. Few beers then chill out!

 

[trev]

Calm doon guys, it's Friday night. Few beers then chill out!

Divvent ye tell me te calm doon bonny lad, Aav had a couple and Aam ridy te clash sum lugs