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hi can i run a exstension lead from a 13amp socket from house to shed for a small fridge and 13amp hot tub what would be best
Discuss hottub in the Electrical Forum area at ElectriciansForums.net
ok ive been told from a engineer at work that i could put a rcd in the house socket then run a 16amp lead 2.5mm to my shed said should be ok?If your hot tub is 3kW (13A) then it is already at the limit for a socket so you could not use the fridge as well as when the compressor is on they typically takes or the order of 5A or so.
Yourt best choice is to get an electrician to put in a double socket in the shed (and probably some lights when they are at it). That would need a viable cable route from house to shed to either bury armour cable, or a route around above ground where it can safely be clipped to walls / fences / etc.
going to put a rcd in house socket hot tub has one fittedWelcome to the forum mate.
I would not recommend running an extension lead to the shed for something that is going to be used for a long time, like a small fridge. Also extension leads have a max rating of 13A. I'm presuming the power requirements of your small fridge and hot tub will be more than this.
Does your socket supply have RCD protection?
Almost, but there are issues to consider:
- ok ive been told from a engineer at work that i could put a rcd in the house socket then run a 16amp lead 2.5mm to my shed said should be ok?
i was thinking the sort they use for camping 16amp with the 3 pinsWhat sort of ‘lead’ are you intending to use?
When I use an extension lead, to cut my grass for example, it’s used under my supervision, and inspected before and after use.
As said, using an extension as a permanent supply, is not a good design. The cable could become easily damaged, without you being aware.
You should have a properly designed circuit and suitable cable. I would suggest installed by a competent electrician. A poorly designed installation, especially in an outdoor environment could be very dangerous.
i was goin to use 16 amp 1.5 cable like the cables for camping as its not going to be on 24/7 just when tub is in useAlmost, but there are issues to consider:
Getting in a professional electrician who is registered with on of the "competent person schemes" is by far the easiest route to this.
- You really ought to have RCD protection on your house sockets anyway, so it would be worth checking your CU (consumer unit = fuse box) to see if it has it or not (or post a photo here).
- Having an out-building off your socket ring circuit is not ideal, as if you have a fault outside you trip off your house sockets as well. You may be OK with that, or have an isolator switch fitted to allow it to be turned off independently if there is a fault, but having a dedicated circuit from your CU is the recommended approach.
- The type of cable uses (and how it is run) has to be suitable for the outdoor environment. So the usual flat twin & earth is not acceptable unless run in some form of conduit, for example. You would need to look at either SWA (steel wire armoured) if there is any mechanical risk of damage, or NYY-J (like SWA but without the armour), or H07RN-F (flexible rubber that is UV tolerant) if the cable is safe in duct or run up high away from likely impact from garden activities.
- The size of the cable (2.5mm, 4mm, etc) depends on the length as well as the load current. Since it is not just the current carrying capacity (i.e. overheating risk) that has to be considered, but also the voltage drop under load.
- If you have extraneous metal stuff in the shed (unlikely, but in case...) such as metal water pipes, or it is a steel framed building, then you need to have the earth bonded. Depending on the type of your supply (i.e. if it is TN-C-S which is the most common type these days) that can either require a large earth conductor (e.g. 10mm) or steps to have an isolated earthing arrangement (known as TT).
- As you are based in England & Wales, this sort of work probably comes under Part P of the building regulations and needs notification to the local authority.
you should leave the hot tub on 24/7 durung the times you want to use it. from cold it will take a day and a hlf to heat up. no use switching it on and sitting around for 36 hours waiting.i was goin to use 16 amp 1.5 cable like the cables for camping as its not going to be on 24/7 just when tub is in use
then you finally decide onok ive been told from a engineer at work that i could put a rcd in the house socket then run a 16amp lead 2.5mm to my shed said should be ok?
why bother askingi was goin to use 16 amp 1.5 cable like the cables for camping as its not going to be on 24/7 just when tub is in use
I thought you already had one, @telectrix ?hot tubs are the spawn of Satan, onlyof any benefit to the leccy supplier who's rubbing his hands in glee all them kWH being used to fund his pension.
mrs. tel's daughter persuaded her to get one, was a cheapo that needed a small repair.once i done that, it was left on, 2.4kW for 2 months, nobody used it. then she moans if i leave a 5watt LED desk lamp on for an hour or 2. never ever be able to undersatand a woman's mentality.I thought you already had one, @telectrix ?
I've found 3 just in my street alone by customers wanting "an outside socket just for the lawnmower"
I can see their attraction, but not if I am paying for the power!hot tubs are the spawn of Satan, only of any benefit to the leccy supplier who's rubbing his hands in glee all them kWH being used to fund his pension.
I decide to get one, mainly for the summer months, when my grandson visits. Fed up with filling up the paddling pool, then fishing out all the dead bugs after etc.Hi. By coincidence I was going to make a post regarding hot tubs and installation. To see what others think about the electrical side of these things. I'll apologise now for the long post.
About two years ago I installed an outdoor socket for a friend, at the time he only wanted to use it for his lawn mower.
Three weeks ago I went back there because he had broken the cover and wanted me to replace it. I found he had a "plug & play" hot tub. I didn't take much notice of it as it was on a 13A plug. So I just replaced the socket.
Last week a customer asked me to install an outdoor socket, as the plug and play hot tub they had just bought kept tripping the breaker in the board when the washing m/c was on. The checking it out, the best way was to put a new 2.5mm radial in. I then got hold of the instructions for the tub, which show that it is a class one product and also had to be TT.
So this changed a few things. going tomorrow to finish off.
But it got me thinking there must be hundreds possibly thousands of these "plug and play" hot tubs installed throughout the UK that have not been installed to the maufacturers instructions. So could be electrically unsafe?
What do you guys think?
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