Harry Bloomfield wrote
NY wrote

Ah, I wasn't aware that there was an intermediate distribution voltage
between 11kV and 240V. Are most power lines on pairs of wooden poles with
big glass insulators and pole-mounted transformers 3.3 rather than 11 kV?

On wooden poles, I would suggest yes..

Ours were mostly on wooden poles when
they first went in and are definitely 11Kv.

The pole is irrelevant, it's the insulators that matter, trivial at 11KV.

We don't have any 3.3Kv distribution at all.