| General > General Technical Chat |
| Junctioning 32A cooker circuit with a 13A spur. |
| << < (3/8) > >> |
| themadhippy:
so its a standard single box? is is buried in the wall or surface? Either way it dont make any difference,if its a surface pattress whip it of and replace with a 47mm double pattress and fit a new cooker control unit,if its flush and you dont mid the new box being surface, whip of the switch,fit a 47mm double pattress and new ccu |
| paulca:
--- Quote from: themadhippy on February 09, 2022, 04:34:49 pm ---so its a standard single box? is is buried in the wall or surface? Either way it dont make any difference,if its a surface pattress whip it of and replace with a 47mm double pattress and fit a new cooker control unit,if its flush and you dont mid the new box being surface, whip of the switch,fit a 47mm double pattress and new ccu --- End quote --- Buried in a tiled wall. Interesting. If I take the existing switch off, I should expect to find at least a plastic or metal back box... I should be able to find a way to fix the new surface mount box onto the metal box's lugs or through it into the wall if I have to and as long as the new box is held on tight it should sit fine on the surface allowing the double CCU with the plug to go there. I still have options and time, oven is delivered Tuesday and as I accidentally paid £44 to have it "installed" by their experts, I might actually leave the work until after that, so they will say, "Sorry our experts could not fit your cooker due to inadequate electrical installation... we are refunding the install fee."... you can hope, right? |
| MadScientist:
I don’t see the problem , spur off to a 13A fused outlet . Fuse the spur as well |
| themadhippy:
--- Quote --- should expect to find at least a plastic or metal back box... --- End quote --- my moneys on metal,unless its a very old installation --- Quote --- I should be able to find a way to fix the new surface mount box onto the metal box's lugs --- End quote --- yes,theres even boxes designed for just this,for example https://www.toolstation.com/axiom-pattress-box-conversion/p80152 but 32mm is a a bit tight for cooker control units,you really want 45mm for an easy life,just make sure its got fixing holes in the back of the box that will line up with lugs on a single box,not all do,this looks like it might do the job https://www.screwfix.com/p/british-general-2-gang-surface-pattress-surface-box-47mm/714ht#product_additional_details_container --- Quote ---Sorry our experts could not fit your cooker due to inadequate electrical installation... we are refunding the install fee."... --- End quote --- What will really happen is they will bodge it in any way they can |
| paulca:
--- Quote from: MadScientist on February 10, 2022, 09:52:50 am ---I don’t see the problem , spur off to a 13A fused outlet . Fuse the spur as well --- End quote --- Yes. That is one option. However it requires a junction at some point. At the point is drops to 13A the fuse needs to be present between the 32A circuit and the 13A one. I don't find junction boxes with fuses, so that only leaves the 2 way consumer unit with 2 fused outputs the "best" option. The cowboy approach is to accept the risk of the 32A circuit spuring to a 13Amp outlet with no fuse. Knowing the only thing plugged in there has a 13Amp fuse in it's plug. The risk is the 13A flex could technically overload between the 6mm connection and the fuse in the appliance plug. That is extremely remote risk, the result would potentially be a hidden smoldering cable and or connections, which may persist to fire in the unlikely event the heat melts some flammable plastic, paint or varnish. My tame spark says that is done all the time. That is obviously tame spark code for, it's not how it's meant to be done. Finally I have the easiest option of all, but it's a bit janky. I can just run the hob off the plug socket for the dishwasher and a double extension. The janky bit is, when someone flips the isolator for the cooker, it will NOT isolate the hob. I can put a sticky label on the isolator that says "OVEN ONLY" and on the dishwasher spur: DISHWASHER + HOB. Would that cut it? Seems the easiest option. |
| Navigation |
| Message Index |
| Next page |
| Previous page |