Bob Eager Wrote in message:
On Thu, 27 Aug 2020 20:01:43 +0100, newshound wrote:

On 27/08/2020 19:30, Scott wrote:
On Thu, 27 Aug 2020 18:46:57 +0100, Harry Bloomfield, Esq.
wrote:

No Name expressed precisely :
On 27/08/2020 18:22, Tim+ wrote:
jon wrote:
On Thu, 27 Aug 2020 16:50:18 +0000, JohnP wrote:

Does anyone think that 3 phase may become a practial proposition
four houses to enable better electric car charging in the future?
Is there really much more involved in the scheme of things for new
build areas?

My house is on the yellow phase and houses opposite are on blue
phase, so 3 phase is piped to our development.

I would imagine that all three phases pass down virtually every
street.
Only properties requiring three phases will be supplied with it
though.

Tim

What would the criteria be for a domestic house to have a 3 phase
supply?
S.

An high enough demand, or a customer willing to pay the cost of
installing it and the higher standing charge.

Would you get a lower unit charge? I think I saw a suggestion that
three phase is more efficient.

Are there any special rules about balancing the phases (within one
property)?

Might be wrong, but I thought normally 3 phase on a property was only
fed to three phase loads, with a separate single phase supply for other
loads. (At least, that is how it is at a very small commercial property
that I know).

Certainly running different phases "nearby" is deprecated because of the
higher phase to phase voltage.

Yes. SWMBO used to work in a 'posh' grammar school. They had a Linux room
for the A level computing students. It was fed off one phase.

They needed an extra mains outlet in one corner, so the electricians
drilled a hole in the wall from a socket in the next room, and added a
spur. On a different phase.

I forget how she found out, but there were no markings and two of the
sockets, on different phases, were about a metre apart.

She complained and was labelled a troublemaker. She was 'advised to
leave' shortly afterwards.



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I used to install kit in betting shops for SiS. On one job a new
shop had been created by knocking through the party wall between
two units.
The satellite receiver and decoder were in one half and the
distribution amps and text computer and multiple screens in the
other. There was an almighty 50Hz hum on the sound and hum-bars
on the screens, it was obvious why but no one else had twigged.

I cured it for the time being with an extension cable.

My sister used to teach in a small very exclusive private girls'
school. They were doing some classroom renovations and discovered
a boarded-up room between two classrooms amongst the chemistry
glassware that was in there was a large beaker of a dull looking
metallic substance half covered in oil. They called the fire
brigade.
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%Profound_observation%


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