13amp Hot tub supply

[HRM-ELEC]

Hi, I've been asked to install 13amp supply for a hot tub around 30m from the house.

Supply to property TN-C-S

Plan is to run a 4mm 2 core swa from a 16 amp mcb in the CU to a IP66 RCD switched fused spur (Aprox 25m from house)

Use the armour as the earth until it reaches the Rcd spur in which case I will heat shrink swa and then fit stuffing gland to terminate.

Earth rod with 10mm to the RCD spur and TT the rest.

Any advice would be great

 

[PEG]

we have that one. it's exactly as you posted. the biggest drawback is the leccy bill.costs about £20/week.

Honestly,Tel? .....You've changed..........

 

[Midwest]

Honestly,Tel? .....You've changed..........

He must wash his smalls in it or keep his beer warm.

 

[Deleted member 26818]

This is what I was doing Easter weekend:

 

[Midwest]

An arbour laying on its side?

 

[Charlie_]

I like the look of the log burner type..
Especially for installations, only have to sort out lighting then

 

[PEG]

This is what I was doing Easter weekend:
View attachment 49153

....I'm not sure what worries me more...the lead hanging out of the window...or,the giant fish-eye mirror,set up at gonad-height...

Either is a potential shock

 

[telectrix]

i'm more concerned about the bird cage on the wall. how do they get in and out?

 

[freddo]

How much of that garden is plastic?!

 

[Charlie_]

ESD woukd be my biggest concern

 

[Spoon]

I do feel these 'like, dislike, agree etc etc' icons create more negative responses, than they set out to achieve.

I mean, why is there a 'bad spelling' icon. Do I need some **** on here to tell me, when someone has posted a reply with incorrect spelling & grammar??

I could of said, 'I mean, wheir is their a 'bid spelling' icen. Do I nead some twot on hear to till me, when someone has pisted incurrect spilling & grammer'.

I have always said the same thing. They are a waste of time and just starts slagging off comments. I'd get rid of them if it was up to me, but the powers that be seem not to care but whinge when there is fighting in threads.

 

[leebut]

Last hot tub (last year) I fitted, I put a separate CU the house next to the main CU which had spare ways but they were on a split load board so I didn’t want any nuisance tripping in the house, I installed a supply to the tub with a rcbo on supply end used 6mm three core SWA at the hot tub end I installed an IP65 lock off isolator switch then the last five metres used 6mm three core flex (can’t remember the VV code for the flex)

 

[Pete999]

The reason for heat shrink was to drop the pme earth at the FCU

As in the regs it recommends not to use PME earth.

Is the enclosure you are terminating the SWA into an insulated one?

 

[UNG]

Thing with these hot tubs, is you have to use chlorine, continuously heat and circulate the water and clean the filter daily.

You can use Bromine it is a lot more pleasant than chlorine and doesn't rot the tub and equipment.
Seen both chemicals used over the last 15 years and tubs used with chlorine generally have never ending repair bills from regularly replacing valves, seals, heaters and pumps etc.
Tubs used with bromine do seem to last longer before major repairs are needed