I have an existing install in my house and an extension supply to an outbuilding. It has a lighting cct and a power radial (no permanent items, rarely used – so happy with load & discrimination)
I wish to add a 32A supply to a Hot Tub, via 6mm2 SWA cable.
Thinking the easiest way is to add the Hot Tub off the Outbulding supply (closer to Hot Tub than house), this is a 40A RCD protected supply, any reason not to do this ?
Only requirement stated by the Hot Tub manufacturer is that it is a 32A suply an isolator must be fitted to supply for servicing, but no closer than 2m, are there any Regs requirements on location of the isolator wrt Outbuilding?
I could fit IP65 rotary switch isolator on outside wall of the Outbuilding and terminate underground cable on that. I can’t think of a reason why it would need to be inside, unless there is a need for it to be within a certain distance of MCB ?
Or simpler I could put a 32A switch fuse inside & alongside the existing Outbuilding install (TT supply) and terminate the undergound cable on that, avoiding need for MCB, and any external isolator ..... drawing attached for both options in case my description not clear.
Also attach a schematic of the existing install and what I want to add (shown in red)
Welcome advice.
I wish to add a 32A supply to a Hot Tub, via 6mm2 SWA cable.
Thinking the easiest way is to add the Hot Tub off the Outbulding supply (closer to Hot Tub than house), this is a 40A RCD protected supply, any reason not to do this ?
Only requirement stated by the Hot Tub manufacturer is that it is a 32A suply an isolator must be fitted to supply for servicing, but no closer than 2m, are there any Regs requirements on location of the isolator wrt Outbuilding?
I could fit IP65 rotary switch isolator on outside wall of the Outbuilding and terminate underground cable on that. I can’t think of a reason why it would need to be inside, unless there is a need for it to be within a certain distance of MCB ?
Or simpler I could put a 32A switch fuse inside & alongside the existing Outbuilding install (TT supply) and terminate the undergound cable on that, avoiding need for MCB, and any external isolator ..... drawing attached for both options in case my description not clear.
Also attach a schematic of the existing install and what I want to add (shown in red)
Welcome advice.
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