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  • FIRST POST
    • Two
    • By Two 16th Oct 19, 10:13 PM
    • 16Posts
    • 2Thanks
    Two
    15kw cooker
    • #1
    • 16th Oct 19, 10:13 PM
    15kw cooker 16th Oct 19 at 10:13 PM
    Anyone care to double check my figures for me? I've just picked up a 15.9kw electric range cooker and need my figures double checking before I connect it up.

    Allowing for diversity (10 amps + 30% + 5 amps due to socket) would give 22.7 amp loading. The cooker circuit is already on a 32 amp mcb with 6mm t&e and its clipped direct with a total run of less than 0.5 metre.

    Sound about right?
Page 1
    • bris
    • By bris 16th Oct 19, 10:39 PM
    • 8,889 Posts
    • 7,787 Thanks
    bris
    • #2
    • 16th Oct 19, 10:39 PM
    • #2
    • 16th Oct 19, 10:39 PM
    Minimum I would use would be a 50amp with 10mm cable, that's a big cooker. Looking at the possibility of everything in use 32amp and 6mm is simply not enough.
    • Two
    • By Two 16th Oct 19, 11:30 PM
    • 16 Posts
    • 2 Thanks
    Two
    • #3
    • 16th Oct 19, 11:30 PM
    • #3
    • 16th Oct 19, 11:30 PM
    Is that taking diversity into account?
    • baldelectrician
    • By baldelectrician 17th Oct 19, 12:04 AM
    • 2,377 Posts
    • 1,664 Thanks
    baldelectrician
    • #4
    • 17th Oct 19, 12:04 AM
    • #4
    • 17th Oct 19, 12:04 AM
    More importantly - what does the manual say?
    baldly going on...
    • Risteard
    • By Risteard 17th Oct 19, 1:24 AM
    • 1,128 Posts
    • 481 Thanks
    Risteard
    • #5
    • 17th Oct 19, 1:24 AM
    • #5
    • 17th Oct 19, 1:24 AM
    A 32A supply is considered adequate for 15kW of cooking appliances. You are fractionally over that, but the idea that you need a 50A supply is nonsense.

    You will probably find that all of those elements cannot actually be energised together, and even where they are they will cycle on and off.

    So it's possible that a 32A supply will be adequate, although a 40A may be more appropriate. Really you need an Electrician on board.

    PS your calculation is incorrect.
    • onomatopoeia99
    • By onomatopoeia99 17th Oct 19, 3:47 PM
    • 5,928 Posts
    • 13,715 Thanks
    onomatopoeia99
    • #6
    • 17th Oct 19, 3:47 PM
    • #6
    • 17th Oct 19, 3:47 PM
    Allowing for diversity (10 amps + 30% + 5 amps due to socket) would give 22.7 amp loading.
    Originally posted by Two
    You seem to have forgotten to add the 10A back in. 32.7A would be closer ...
    INTP, nerd, libertarian and scifi geek. Home is where my books are.

    5.2kWp system, SE facing, >1% shading, installed March 2019.
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