Socket for tumble Dryer

Discussion in 'Electricians' Talk' started by Scouse30, Apr 24, 2024.

  1. The Happy Builder

    The Happy Builder Screwfix Select

    Same answer.

    Reference BS7671 Regulation 553.1.7 permanent and semipermanent extension leads warrant at least a C3 on an EICR.
     
  2. Sparkielev

    Sparkielev Screwfix Select

    Are you related to wellwisher ?
     
    WH55, Matthew Gray and bright_Spark like this.
  3. Refuse to Bend

    Refuse to Bend Active Member

    That Regulation makes no reference to Coding whatsoever. Do you conside a tumble drier mobile equipment?
     
  4. spinlondon

    spinlondon Screwfix Select

    Code C2 sometimes for unwound extension reels
     
  5. spinlondon

    spinlondon Screwfix Select

    Manufacturer’s Instructions generally have to be taken into account.
    There are some instances where they must be complied with (generally in relation to equipment installed in CUs).
     
  6. The Happy Builder

    The Happy Builder Screwfix Select

    There is not any guidance on EICR codes in any regulation in BS 7671 Wiring Regulations.

    The Wiring Regulations is not a manual telling people how to do things, that is why there is a set of Guidance Notes, an On-Site Guide and other guidance available.This is why there are arguments about the appropriate EICR codes,because ultimately it is a decision made by the inspector.

    553.1.7 says there should be a socket within reach of the appliance cord without an extension lead being required.

    It could be that the use of extension lead is a C2 or even a C1, if for an example an extension lead crosses a door way on or under the carpet, resulting in a trip hazard or the insulation being damaged due to people walking on it.
     
    Last edited: Apr 25, 2024
  7. techie

    techie Screwfix Select

    Omg…
     
  8. The Happy Builder

    The Happy Builder Screwfix Select

    Electrical Safety First (NICEIC) website

    Extension leads are out of scope for a periodic inspection unless specifically requested

    Answered by Sarah, Electrical Safety Expert
    Extension leads are out of scope for a periodic inspection unless specifically requested. However, if they are being used as a result of too few sockets in a property then this should be reported on the Electrical Installation Condition Report (EICR).

    https://www.electricalsafetyfirst.o...-extension-leads-included-in-a-test-and-eicr/
     
  9. Scouse30

    Scouse30 Member

    Hi everyone, I did initially intend to add a spur from an existing radial socket in the dining room but that circuit already has a spur off it using a junction box. I read this was a no no to add another spur.

    The photos show the location of the tumble dryer in the kitchen and the double socket in the dining room.

    There is a single socket in the kitchen in a cupboard on a separate radial circuit.
     

    Attached Files:

  10. Coloumb

    Coloumb Screwfix Select

    With a radial you can add as many branches as you like providing you don't reduce the csa of the cable, it's only on a ring final that you can't spur from a spur. I'm still not clear on what you want to do though? You're not sure if you want to take a feed from the dinning room socket or the kitchen socket to the t dryer?

    Are you 100% sure you have radial? Most kitchen radials would be wired with a 32a breaker in 4mm. Sockets in the rest of the house would commonly be on a ring final. Is that the case with yours? Can you get a pic of the CU up?
     
  11. arrow

    arrow Screwfix Select

    That is what Vulcascot is for
     
    Coloumb likes this.
  12. Wellwisher

    Wellwisher Well-Known Member

    What you read was wrong. It is perfectly OK to take 2 spurs from one point. What you can’t do is spur off a spur.
     
    Scouse30 likes this.
  13. Scouse30

    Scouse30 Member

    Thanks this is what I wanted to know
     
  14. Scouse30

    Scouse30 Member

    Thanks for clarifying this
     
  15. Coloumb

    Coloumb Screwfix Select

    The risk is you could potentially overload the ring final on one leg by doing this. If the ring is in a good healthy state and you understand the implications of multiple spurs from one point then you would evaluate the risks involved etc, and design as such. If the ring is an unknown quantity then it's not something I would recommend, particularly with high current loads like tumble dryers.

    In the guidance issued by the IET there are no diagrams or references to using this method so I would presume it's not something they would endorse or encourage.
     
  16. Wellwisher

    Wellwisher Well-Known Member

    Very unlikely. No more likely than two 13A loads close together on a ring which no one ever questions.
     
  17. Coloumb

    Coloumb Screwfix Select

    I would imagine if the ring has a break in it or a badly formed joint offering a high resistance then it going to be dependent on that more than anything else.
     
  18. Refuse to Bend

    Refuse to Bend Active Member

    Your electrical knowledge doesn't sound great so installing an additional socket outlet isn't the greatest of ideas. Either find an electrician or use a good quality 13A single extension lead.
     
  19. adgjl

    adgjl Screwfix Select

    Only if the terminals are intended to take four 2.5mm cables. They may not be.
     
  20. MGW

    MGW Screwfix Select

    Oh dear, this has gone a bit stupid, anyway to change an existing socket to a double is not a problem, or change it for a fuse connection unit and single which is doing the same thing, but one must ensure that a single 2.5 mm cable does not have over a 20 amp load, so if coming from a ring OK but can't have unfused spur from an unfused spur.

    As to extension leads often they will have an overload built into the reel to trip it if it over heats, and typically a 10 amp extension is only rated 5 amp if not fully unwound.

    Also many extension leads not rated for full 13 amp.

    As to dryer, the vented and condensing using resistive elements can draw high currents, so using an extension is not the preferred method, the condensing using a heat pump uses far less power, so no problem with power rating, but there is a problem with volt drop, unless a heat pump is inverter powered they have a high start up amps, so any refrigeration plant be it built into tumble dryer, an AC, or fridge or freezer needs to start up fast before the pressure builds up, so volt drop needs keeping to a minimum, so most manufacturers do say don't use an extension lead.

    However it would need to be rather long to really cause a problem, I have seen it once in Algeria where an AC was run off 2 phases and the guy doing it clearly did not under stand how three phase works, so thought 110 - 0 - 110 = 220 volt where in reality it = 190 volt so it was running 30 volt under rating.
     

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