My summer project is to build two large log cabins at the bottom of my garden. They are separated by a couple of metres. One is for use as a workshop / storage and the other for leisure / home office use.
I am planning on burying a 3 core 10mm2 SWA cable about 600mm under the mainly grass garden, with a metal junction box connecting to 10mm2 T&E from the RCD protected house CU with a 32A MCB. I am using 10mm2 cable throughout due to the relatively long run of over 40m to the workshop as I want to minimise volts drop.
Each cabin will have 4 or 5 double sockets and 1 or 2 internal lights plus an external PIR lantern. I don't want any visible cabling between the two cabins.
My question is this:
Can I have an RCD protected 2 way CU in EACH cabin (1 x 2.5mm2 spur and 1 x 1.5mm2 lighting circuits). The first workshop cabin would have the 10mm2 SWA cable IN and another SWA (unfused) 10mm2 SWA cable OUT to the other lighter load cabin CU. This is effectively a radial distribution.
Alternatively, would it be better to have a single 4 way CU in the workshop cabin with buried 2.5mm2 SWA and 1.5mm2 SWA cables to the second cabin.
Thoughts / opinions welcome.
Many Thanks.
I am planning on burying a 3 core 10mm2 SWA cable about 600mm under the mainly grass garden, with a metal junction box connecting to 10mm2 T&E from the RCD protected house CU with a 32A MCB. I am using 10mm2 cable throughout due to the relatively long run of over 40m to the workshop as I want to minimise volts drop.
Each cabin will have 4 or 5 double sockets and 1 or 2 internal lights plus an external PIR lantern. I don't want any visible cabling between the two cabins.
My question is this:
Can I have an RCD protected 2 way CU in EACH cabin (1 x 2.5mm2 spur and 1 x 1.5mm2 lighting circuits). The first workshop cabin would have the 10mm2 SWA cable IN and another SWA (unfused) 10mm2 SWA cable OUT to the other lighter load cabin CU. This is effectively a radial distribution.
Alternatively, would it be better to have a single 4 way CU in the workshop cabin with buried 2.5mm2 SWA and 1.5mm2 SWA cables to the second cabin.
Thoughts / opinions welcome.
Many Thanks.