Garden room installation

[Kasdigital]

Hi all, i am planning to install electrics to a garden room, cable length from CU is approx 45meters external,burried.
Should i use 3 core SWA and rely on earth from there or treat it as a T-T earth installation and just run 2 core from C/U ? there will be 2KW heater and 4 2G sockets plus led lighting and possibly Hottub retrospectively! Planning on 40amp MCB from C/U to give life to it, should i take this approach or split off meter tails and C/U in the shed itself?

 

[buzzlightyear]

Hi all, i am planning to install electrics to a garden room, cable length from CU is approx 45meters external,burried.
Should i use 3 core SWA and rely on earth from there or treat it as a T-T earth installation and just run 2 core from C/U ? there will be 2KW heater and 4 2G sockets plus led lighting and possibly Hottub retrospectively! Planning on 40amp MCB from C/U to give life to it, should i take this approach or split off meter tails and C/U in the shed itself?

more information needed mains DNO .ect......

 

[Strima]

Earthing arrangements?

Maximum demand?

Any bonding requirements?

 

[Kasdigital]

Earthing arrangements?

Maximum demand?

Any bonding requirements?

5/8 earth rod 2 meters in depth to garden external, maximum demand 2x 2kw heaters say 16amps and no more than 6amp for lighting 6x7w led, no bonding requirements in my head, just standard.

 

[Kasdigital]

more information needed mains DNO .ect......

Western power DNO

 

[buzzlightyear]

Western power DNO

What TNCS or other end outhouse water.

 

[Kasdigital]

What TNCS or other end outhouse water.

Water pipe for bonding only at house end currently, wanted to re bond at outhouse as i dont think it will pass resistance threshold?

 

[buzzlightyear]

Water pipe for bonding only at house end currently, wanted to re bond at outhouse as i dont think it will pass resistance threshold?

Is this a DIY job, cause has long I can see this work will be needing a test cert and part p jobby.

 

[Kasdigital]

Is this a DIY job, cause has long I can see this work will be needing a test cert and part p jobby.

Last time i touched a wire was 10+ years ago but yes would need sign off by someone as only part qualified. Just dont want to get it wrong as reason for needing a bit o guidance. Not sure of regs these days.

 

[buzzlightyear]

You need to get a spark in before hand and work with you.