Running a new SWA to supply a shed

[Helm-Electric]

Running a 4mm SWA to the shed, approx distance is 20m. Earthing is PME.

I plan to run the 4mm SWA out from the wall of the house and cleat it along the side until it reaches the back of the house. From there the cable will go to ground at a depth of 450mm all the way to the shed. I plan to fit a 2 way CU for lights and a double socket within the SHED. The SWA will be protected by 30mA RCD and MCCB at the CU within the house. Total load shall not exceed 2kW. The installation will be inspected and tested by qualified electrician who also happens to be my friend. I am making it easier for him by doing all the grunt work...

I am guessing there is no height restriction for the SWA?

Thanks

 

[malcolmsanford]

none.........................unless your in caravan site or similar

 

[acowx]

Normally around 500mm...

How are you earthing the shed btw?

Cheers
Ash

 

[acowx]

Ah, thought it was around 500mm???

 

[Helm-Electric]

450mm comes from my DNO background. 500mm it is then if thats the spec for private cable. I will be using the SWA as the cpc from the CU in the house.


Below is the route. Hence why I am erecting the cable along the wall.

 

[Helm-Electric]

And the consumer unit. That socket appears to be in the way unless there is another way in. The wooden paneling is fixed into place. It is a split board with spare ways on the left.

 

[malcolmsanford]

move the socket???

 

[DPG]

If it's SWA to the shed, would the RCD protection be better in the shed rather than the house? Daz

 

[Silly Sausage]

If it's SWA to the shed, would the RCD protection be better in the shed rather than the house? Daz

I was thinking that but he's got an all RCD board.
It's not really worth the hassle.

 

[DPG]

Good point. Didn't notice. Daz

 

[Helm-Electric]

Yeah thats why I am not bothering with a RCD in the shed. So there is the option of upstairs or downstairs split of the board. I guess downstairs is more critical so I'll connect it to the upstairs of the board. Unless of course the board has been split equally regards to load.

 

[a1guvner]

Surely your cpc will only protect the cable and be left disconected at the shed end and a rod installed for the shed side

 

[malcolmsanford]

A1 .........................shall I get your coat

 

[a1guvner]

A1 .........................shall I get your coat

LOL, jumping ones gun

 

[malcolmsanford]

LOL, jumping ones gun

I just thoughts of the dreaded exported earth thread .................... rearing it's ugly head