SWA & Meter Tails

[chloebear]

Hi All,
I have a 50m run to extend services into a sub main in a new house. The majority of the run will be in 25mm 3core SWA - however once I get into the house and up into the loft, would it be acceptable to block this and change to 25mm meter tails. Reason for this is that handling the 25mm swa trough the loft area etc will be challenging to say the least.

 

[Sintra]

Doing that might mean you have to add additional protection to the sub main depending on the installation method of the tails from the loft to cu position.

 

[chloebear]

By additional protection are we talking metal box trunkig etc?

 

[Sintra]

30mA rcd if the cables are to be installed within a wall etc.

 

[chloebear]

ahhhh, with you - cables will be surface clipped through the loft at high level - surface all the way to the CU.

 

[Sintra]

That should be fine then.