In message , Mike Tomlinson
writes
En el artículo , NY
escribió:

Is three-phase (or at least two-phase or split-phase) wiring common in
domestic UK environments?

One of my properties, an old Victorian semi converted into two flats,
has a 3-phase supply coming into the hall cupboard in the downstairs
flat. One phase is used for downstairs and another for upstairs. The
third is unused.

To answer NY, no 3 phase isn't common in domestic installations.

Our house (Victorian, biggish, but not unusually so) has a 3 phase
supply, though we are only connected to one of them.

Each phase is terminated with a separate terminal block, though this was
originally an overhead supply, with four separate incoming cables. Since
replaced with an single underground cable - though terminated
externally, so as to avoid the mess of bringing it indoors
--
Chris French