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The page number you need in the TLDR document is the page number I already stated above. But ave yourself the trouble, here is what it says;

SUPPLY
May be single phase (230 V-50 Hz)
or - in the majority of cases -
3 phases (400 / 230 V-50 Hz).

(...)

POWER CIRCUITS
Single phase up to 3 WA, 7.3 KVA:
3 phases.

Electrical appliances having
a high power consumption
(cookers, washing machines, etc.)
are supplied via a specific circuit
and connected either to 16 A
socket-outlet or cable outlet or to
a specific socket Perilexi or CEE 17.

It is not uncommon to find 3 phases
appliances.

 [[User talk:Spinningspark|Spark]]''' "