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Splitting up a 3 phase area???

Hi everyone,


There are some 21 'open' areas and each 'area' doesn't have a door... each 'area', (about 10ft x 10ft x 20), has to have 4 DSO and a cooker supply / outlet. 


The problem is, as there are so many 'open' areas, (without any doors'), the 3 phase has to be 'balanced', (as we know), and each phase would be broken into about 7 areas, ie; 1 phase for 7 'areas / 'units'. That's simple enough BUT, as there aren't any doors' to these 'areas' / units I'm concerned about someone running, (unlikely but possible), a lead from one 'unit' to another thereby one 'area' would then have 415v in it. 


How could you protect this from happening / alternative wiring? There isn't a bus-bar anywhere and really all of the 21 'units' couldn't be put on the same phase. I don't know what the incoming fuse rating is yet. Has anyone done something similar??


I haven't worked out the amount of amps, per unit, yet but, with some 21 cooker outlets and some 80 odd DSO's it just wouldn't be possible to all go on one phase.


Any ideas welcomed!!


Cheers, Tom

Parents
  • Harry Macdonald:

    I suspect the concerns about 415V being present disappeared when it was realised that is is exceedingly difficult to touch 2 phases without first touching one phase and earth. It needs to be a very clever set up to do that.


    Hello Harry, thanks for the reply!


    Good to know it's ok nowadays!!! 


    regards... Tom


Reply
  • Harry Macdonald:

    I suspect the concerns about 415V being present disappeared when it was realised that is is exceedingly difficult to touch 2 phases without first touching one phase and earth. It needs to be a very clever set up to do that.


    Hello Harry, thanks for the reply!


    Good to know it's ok nowadays!!! 


    regards... Tom


Children
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