I
Ian Field
Guest
"Phil Hobbs" <pcdhSpamMeSenseless@electrooptical.net> wrote in message
news:O96dnZ1TzpCi44_KnZ2dnUU7-IOdnZ2d@supernews.com...
My town has a huge transformer direct off the 400kV pylons. The substations
are dotted around all over town, typically about the same footprint as an
old style phone box but not as tall, often 2 to an enclosure. around the
industrial estates they can be about the size of a van. The rural ones range
from not much bigger than a suitcase to pretty big, depending what they
serve. Some farms have a full on substation if they have a lot of grain
handling machinery.
news:O96dnZ1TzpCi44_KnZ2dnUU7-IOdnZ2d@supernews.com...
On 04/16/2016 01:58 PM, Ian Field wrote:
"Phil Hobbs" <pcdhSpamMeSenseless@electrooptical.net> wrote in message
news:BcKdnVwN7oaO-ozKnZ2dnUU7-VGdnZ2d@supernews.com...
On 04/15/2016 04:43 PM, John Larkin wrote:
On Fri, 15 Apr 2016 21:27:47 +0100, "Ian Field"
gangprobing.alien@ntlworld.com> wrote:
"John Larkin" <jjlarkin@highlandtechnology.com> wrote in message
news:vjb0hbthji9jggq9v0sara39g976gbejl6@4ax.com...
On Thu, 14 Apr 2016 21:11:35 -0000 (UTC), Cursitor Doom
curd@notformail.com> wrote:
On Wed, 13 Apr 2016 11:14:03 -0700, John Larkin wrote:
When I was a kid, we could buy anything at a chemical supply store,
including crystalline iodine and pure ammonia. They knew what we
would
do with it.
I bought a big jug of nitrobenzine and made a Kerr cell. Might have
killed myself.
Yup, been there; done that. I made most of the naughty stuff
beginning
with "nitro-" by the time I was 15. Surprised I'm still here. But
that
was what boys of that age did back then and it wasn't the least bit
frowned upon.
We found a shopping bag full of shotgun shells in an abandoned house.
A basically unlimited supply of black powder. Fun summer!
And a local sign company used to give away used neon sign
transformers. I had a double-insulator 15KV one that I could barely
lift.
Pah - all the big kids are playing with surplus pole-pig transformers.
Big kids with pickup trucks?
Nah, pole pigs are 1600V->240V. Running one backwards from domestic
mains here would only get you 800V. Neon sign transformers are _way_
more fun.
Of course, if you're running your California Kilowatt rig, maybe.
Cheers
Phil Hobbs
AFAICR: the UK buried cables go up to 33kV for light to medium industry
and 11kV for the small businesses and domestic substations.
But those aren't pole pigs. Substation gear is of another order.
But you'd need something bigger than a pickup + winch.
Rural is a little different, high enough voltage for overhead cables are
provided for farms and villages. We have pole transformers, but very
rarely in towns.
Lots are generally larger in towns here, so you can't really run 240V all
the way from the substation. In my neighbourhood the lots are about 1/2
acre, which is not at all unusual.
My town has a huge transformer direct off the 400kV pylons. The substations
are dotted around all over town, typically about the same footprint as an
old style phone box but not as tall, often 2 to an enclosure. around the
industrial estates they can be about the size of a van. The rural ones range
from not much bigger than a suitcase to pretty big, depending what they
serve. Some farms have a full on substation if they have a lot of grain
handling machinery.