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7,300 Watts supplied on a 2.5mm2 T&E.

Yes a 2.5mm2 T&E cable can supply a 7,300 Watt instantaneous water heater at 240 Volts. I came across this today. The supply was from a B32 M.C.B. So why do we use bigger cable than 2.5mm2 if it will do the job?

The run was about 5m maximum. 

Z.

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  • Chris Pearson: 
     

    gkenyon: 
    (Apologies for pedancy)

    Pedantry even! ?

    ? There are those pedants who can only see it as pedancy in English, and those who want to import (and mis-spell) an Italian word root ‘pedanter' rather than treat the word as “adopted into English” and follow the “ant” to “ancy" approach (although that usually applies to adverbial nouns).

    Yet at the same time, some of those who support pedantry would be highly unlikely to use octopodes, favouring probably octopuses but perhaps octopi … pedantically the latter being wholly incorrect, because octopus is not Latin, but phonetically-spelled Greek οκτάπους  (8-footed).

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  • Chris Pearson: 
     

    gkenyon: 
    (Apologies for pedancy)

    Pedantry even! ?

    ? There are those pedants who can only see it as pedancy in English, and those who want to import (and mis-spell) an Italian word root ‘pedanter' rather than treat the word as “adopted into English” and follow the “ant” to “ancy" approach (although that usually applies to adverbial nouns).

    Yet at the same time, some of those who support pedantry would be highly unlikely to use octopodes, favouring probably octopuses but perhaps octopi … pedantically the latter being wholly incorrect, because octopus is not Latin, but phonetically-spelled Greek οκτάπους  (8-footed).

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