On Wed, 01 Feb 2017 17:36:48 -0000, wrote:

On Wed, 01 Feb 2017 16:38:12 -0000, "James Wilkinson Sword"
wrote:


Three phase is on the national grid. Supplying only one phase off that would be lop-sided. That's why all three phases come right to every transformer in the UK, then alternate houses are connected to each phase.

If you only fed on street that might be a problem but they alternate
the load by distributing the 3 phases along roughly equal loads on
multiple streets.
It basically just saves them wire. The neutral will be going
everywhere, common from primary and secondary and a single phase
conductor on the primary. We use wye distribution here.
We also end up with more transformers than you see in europe. There is
a transformer for every 1-3 houses. That probably got started when
houses were pretty far apart and it was more efficient to distribute
medium voltage than to try to go very far with low voltage.

I guess it depends on the topological distribution of houses. More transformers, more wire, more current losses, you have to pick something.

--
Cold showers/baths/swimming:
1) Cure Hayfever. Apparently this is due to the strengthening effect on the mucous membranes.
2) Help circulation by bringing blood to capilliaries and increasing circulation through the body.
3) Improve the internal furnace, be warmer when it's cold.
4) Make losing weight easier - generating heat burns loads of calories.
5) Detoxify, by contracting muscles to eliminate toxins - skin and hair also improves.
6) Save energy.
7) Increase libido (contrary to the old wives' tale).