Consumer unit to be moved away from service head

[Chris]

Hi everyone.
I have been asked to relocate a consumer unit from a cupboard outside a house into the inside of the property. The main fuse and meter will be remaining outside however the run is about 6/7 metres long, i believe it states in BS7671 that the meter tails cannot exceed 3m in length.
would this require me to put a separate fused connection unit within the 3m of isolater and then run a 25mm SWA + 16mm earthing conductor from the fused connection unit, to the 6/7m away consumer unit location? If not who knows a better way?
thanks, chris.

 

[Nigel]

Because that’s what’s been done in my house,not by me, this thread just reminded me so I thought I’d ask....
100A 100ma if memory serves me,not Home at moment.

Are you on a TT?

 

[Baddegg]

Tns, but the consumer unit has been moved by someone before we bought the place as the original tails go into the rcd I mentioned earlier then leave the rcd in armoured and go to the unit under the stairs,

 

[Baddegg]

Apologies if I’ve hijacked your thread chris

 

[LankyWill]

the render .

Your really starting to annoy me, why do you always insist on taking threads of track. If your reply doesnt fall within the OP's question dont bother!

 

[Nigel]

Tns, but the consumer unit has been moved by someone before we bought the place as the original tails go into the rcd I mentioned earlier then leave the rcd in armoured and go to the unit under the stairs,

Then I cannot see why that RCD has been installed.

 

[buzzlightyear]

If your reply doesnt fall within the OP's question dont bother!

the op, is taking SWA has sub main to a new position and going to run it on the out side of the wall buried in render .me thinks it is bad idea .the op may has well run the SWA in the cavity if possible. or inside .

 

[Baddegg]

Then I cannot see why that RCD has been installed.

Thanks Essex,have been intending to look into this for a while this thread has just given me a kick up the arse,I believe it’s a 100a 100ma rcd main switch,not completely sure its time delayed I’ll have a look later

 

[Toneyz]

OP are you berrying the sub-distribution cable in the render as others are assuming that you are or are you cleating direct to render? What is your plan to run this cable?

 

[Chris]

Ma

Does the maximum demand require 25mm or could you get away with 16mm?

Maximum demand is 140-150A dont suppose you know if this falls within the allowance for 16mm?

 

[Chris]

OP are you berrying the sub-distribution cable in the render as others are assuming that you are or are you cleating direct to render? What is your plan to run this cable?

No i am not burying in render it is my fault for the assumptions as i wasnt very clear, the wall is due to be rendered over and it will be cleated and ran along the wall, then drilled through into property.

 

[Leesparkykent]

Ma

Maximum demand is 140-150A dont suppose you know if this falls within the allowance for 16mm?

No and it doesn’t for 25mm either. What kind of house is this.... A grow house?

 

[Ian1981]

Ma

Maximum demand is 140-150A dont suppose you know if this falls within the allowance for 16mm?

How did you conclude 140-150 amps ,have you simply added all the rating of the OCPD’s up?

 

[Baddegg]

Gonna have to be really creative with diversity to get them down to 16mm

 

[Chris]

How did you conclude 140-150 amps ,have you simply added all the rating of the OCPD’s up?

Yes i havent ap

No and it doesn’t for 25mm either. What kind of house is this.... A grow house?

Ah my mistake ive just added the rating of the MCBs up

 

[Toneyz]

Considering the OP has told Pete that he has done his 17th and 2391 bit concerning.