Garage SWA

[liam b]

Hi,
would it be bad practice to run a supply to a garage through the house loft in 6mm pvc/pvc from main house DB and into an enclosure to run 6mm SWA outside to garage?

just to keep costs down on cable

thanks

 

[Robo]

Thats fine. Run 6mm from db into an enclosure. And then use proper sw glands to gland swa to enclosure. Id recommend you use 3 core rather than relying on the swa as a cpc. However make sure armourings are properly glanded to garage db and connected to earth. Its only essential to earth armourings at 1 end. Hope this helps.

Robo

 

[nickblake]

i use twin and earth in the house mainly because its easier to install into an insulated CDU , what you could do is gland it into a galve u box and use a 20mm stuffing gland for the 6mm then terminate in a 30 amp chocolate block with a fly lead to earth the box fix to the wall and armour lid on job done

 

[Risteard]

Id recommend you use 3 core rather than relying on the swa as a cpc.

Why? The armour is designed to be used as the cpc.

 

[liam b]

cheers for the replies

my concern was changing from a 2.5mm earth in the pvc to a 6mm earth in the swa.
there will be a metal enclosure in the loft that will be earthed and one above the CU in the garage where i can gland into and run the cores straight through into the garage CU, sounds like its fine

thanks again.

 

[nickblake]

cheers for the replies

my concern was changing from a 2.5mm earth in the pvc to a 6mm earth in the swa.
there will be a metal enclosure in the loft that will be earthed and one above the CU in the garage where i can gland into and run the cores straight through into the garage CU, sounds like its fine

thanks again.

Not all 6mm has a CPC of 2.5mm some 6mm has a CPC of 4 mm ,i insist that the 6m i use has a CPC of 4mm not 2.5

 

[telectrix]

you could ron a sepatate, 6mm earth alongside the T/E.

 

[telectrix]

of course the armour is designed for use as cpc. that's why the regs. say we musn't use it as cpc. DOH

 

[Risteard]

of course the armour is designed for use as cpc. that's why the regs. say we musn't use it as cpc. DOH

Which Reg is that?