Hi

Comments, please. I've read history in this group, consulted the Wiring Regs and the OSG. I
can find nothing that precludes me from implementing my preferred design for a power feed to the
garden shed.

I intend to take feed from kitchen ring main through a DP switch and a 13A fused spur unit to a
4mm.sq SWA cable running to the shed. I intend to fit some RCD protected mains sockets in the
shed, and take a feed through a 5A fused plate for lighting. The SWA cable is 3 core so I get a
4mm earth as well as the armour. The cable is burried at 400mm in an old metal pipe and plastic
tape above. The house istallation is PME and I have test equipment to check earth loop
impedence etc once the job is done. I will rely on the earth from the house (rather than treat
the shed as a TT, float the earth at the shed end and drop an electrode). The load in the shed
is minimal, including the use of power tools and garden tools and while I may install a small
freezer I will accept a trip risk.

I have considerable DIY electrical experience and I would not as a matter of personal preference
take a spur off the kitchen ring but I have no spare ways on the CU whuch is towards the front
of the house which has concrete floors and there's no viable cable route. My only other
possibility would be a feed from the Cooker Unit (this is a serious possibility if we put in a
gas cooker when the kitchen is refurbed!).

Can anyone point me to any breach of regs or problems in the above design - I know it's not
ideal, but it is a considered design.

Thanks
John