Incoming SWA too short

[Podooser]

Can you help?
The supply meter is in a small purpose built shed on the property boundary. The house (new build) is supplied from this via 25mm2 SWA. For some inexplicable reason they have only left enough SWA inside the house for a CU about 600mm of finished floor level. I would like to have it above head high. What is the best way to achieve this?

 

[breezer]

renew 25mm cable is the best way.

other way fit very big metal adaptable box and join new cable to old one

 

[Podooser]

Impossible to renew SWA. It is buried right up to the house and enters below ground.

 

[securespark]

Impossible is a strong word....

 

[davy_owen_88]

Impossible to renew SWA. It is buried right up to the house and enters below ground.

Are you sure it isn't in some form of duct? It should be...

 

[Podooser]

Apart from relaying the cable what is the best way to extend it. Can I convert it into tails and run them up the wall in large conduit for example, and if so can I use a henly block inside an adaptable box with the armour connected to the earth using a gland/banjo (it is a 3 core SWA).

 

[ColJack]

they have built to the building regs..

CU's are supposed to be at low level now so that people in wheelchairs can re-set a breaker if it goes..

it really ought to have aome form of isolation where it enters the house..
put your cutout or isolator at low level then have long tails up to the board..

 

[Podooser]

There will be an isolator in the meter shed, will I need to have one in the house as well?

 

[Lectrician]

I would use a cold pour joint outside, and renew the final length into the building. Small excavation outside house to find cable and joint. However, CU's are not meant to be at ceiling height any longer.

 

[Lectrician]

There will be an isolator in the meter shed, will I need to have one in the house as well?

No - I see no reason to what so ever - It will be integral to your CU.

 

[Lectrician]

Impossible to renew SWA. It is buried right up to the house and enters below ground.

Are you sure it isn't in some form of duct? It should be...

Why *should* it be?