Better watch it Ranger! Looks like he's getting ready for you.... [Linked Image]
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this would only be spread over two Phases + Neutral, this is still only 230V,
Trumpy,
But even though each heating element may be only 230V, there is still 400V in the range between phases.

Each 13A outlet here is only 240V, but the Regs. specify that all sockets in the same room should be on the same phase to avoid having 415V between them.