OT: house fires - electrical fault

"Jasen Betts" <jasen@xnet.co.nz> wrote in message
news:nd2ipo$fkb$4@gonzo.alcatraz...
On 2016-03-23, Ian Field <gangprobing.alien@ntlworld.com> wrote:


"Computer Nerd Kev" <not@telling.you.invalid> wrote in message
news:ncv2gv$1l8i$1@gioia.aioe.org...
Ian Field <gangprobing.alien@ntlworld.com> wrote:


"Computer Nerd Kev" <not@telling.you.invalid> wrote in message
news:ncsen0$1cm8$1@gioia.aioe.org...
Phil Allison <pallison49@gmail.com> wrote:
Computer Nerd Kev wrote:

Phil Allison

But if the safety ground connection goes only to some local earth
stake
or plumbing, then the resistance may be much higher than the cable
used
- reducing the fault current to a level that fails to blow a
supply
fuse. I understand that this method was commonly the case in the
UK
in
the past ( pre 1960) and may still used be in some installations.

Would this not be a potential problem with Single Wire Earth Return
systems?


** Not normally.

With that there is a resistance for both the Ground and the Nutural,
both of
which have to use the Earth as the return.

** Not true.

The single conducting wire is not carrying 240VAC, but more like 10
to
20kV.

Each user has a hefty isolation transformer that passes only a small
current
to ground while providing 240VAC at high current to the user.

The user's earth and neutral conductors are linked and grounded as
usual
to
a stake near the transformer.

Yes, of course. I forgot it is the High Voltage side that connects to
Earth for the return,

I'd always assumed that the high voltage distribution was 3-phase.

A star configuration more or less doesn't need an earth - but you can
earth
the middle conductor if that's what takes your fancy.

The delta configuration could at a stretch be considered as not having
anywhere to put an earth.

The pylons running past where I live have 3 pairs of arms, which I
assume
are 2 lots of the 3 phases. There is an earth wire strung along from
the
very tops of the pylons, its certainly not sufficient to handle any
significant fault current - I assumed it was just there as a more
inviting
target for any lightning strikes.

More than likely; it only has a "documented" earth from the point where
it
comes down from the pylons and gets transformed down for the buried
cables.

The thing to note with "Single-Wire Earth Return" is that it's
single-wire
in
order to save costs in building and maintaining the distribution lines.
It's
single phase and uses the Earth as the return to avoid having a second
wire.

From what is stated on the Wikipedia page, it seems that the system is
mostly
used in rural areas of Australia and New Zealand. In practice it's
mainly
used
for connecting power to farms. In towns, three phase is very common.

AFAIK: the high voltage distribution is 3-phase

yeah, except where it's DC.
Click to expand...

That's mostly the US, they're experimenting how high a voltage they can get
away with before corona discharge losses come up to capacitive losses on AC
distribution.

The UK trades electricity with France via DC undersea cables - AFAIK: there
aren't any DC overhead cables (yet).

That is about as recent as advances in technology that allows thyristor
inverters to handle those sort of voltages (about 800kV in the US last I
heard).

A long time ago when every town had its own power company and they didn't
have to shift electricity very far - about half of the UK had DC mains.
 
"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:nIfJy.370706$gz.827@fx40.am4...
"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:dljrodFoaimU1@mid.individual.net...


"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:OSFGy.105338$Na.62911@fx44.am4...


"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:dl0nq0Frbf9U1@mid.individual.net...


"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:z7FGy.119571$zA3.89485@fx38.am4...


"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:dl0kgvFqgcmU1@mid.individual.net...


"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:VgCGy.126812$Mw2.10757@fx35.am4...


"Phil Allison" <pallison49@gmail.com> wrote in message
news:231ebbf7-77b4-4a82-b12c-0ee13d8c979c@googlegroups.com...
Rod Speed e wrote:



Nope,

** Yes it is.


How odd that not one is visible in the quoting,


** Not odd - you snipped them.


Fact.

** No it isn't.



If it was, we'd have a higher rate of electrocutions.


** Massive fallacy.


Not the issue at all.

Even sillier than you usually manage.


** The same repetitious shit that ASD fucked morons can only
manage.



Millions of homes do.

Sweet fuck all do.


** Nope - there are millions you pathetic, ASD fucked liar.



Power and light are separate circuits.

Still power


** Still separate circuits.



Fraid it is correct.

Like hell it is. We have plenty of light 3
core cables without any fused plug tops.

** No we don't.


Like hell it does.

Wrong, as always.


** Shame you cannot post any case - you lying POS.

My win, as always.

FOAD ASAP.

Just watch out for him on the Darwin Awards
site.....................................

Never happened. And when I had moved into the house
I had built on a bare block of land, well before it was legal
to move in, I powered the entire house from the builder's
temporary supply by plugging the entire house in using
a jesus adapter.

I used a long lead from the pole that the builder's temporary
supply was on to the fascia of the house closest to the temp
supply. I had a knot in that lead there which was a melted
enough so I had to cut it off when the council eventually
demanded that I connect the house properly.

Wouldn't have mattered if it did short at the knot, it would
have just blown the fuse in the meter box on the builder's
temporary supply. No fire, no nothing.

You certainly qualify for a Darwin Award

Nope, I know what is perfectly safe, even if you're too stupid to work
that out.

Pride before a fall etc etc

There never was any fall, fuckwit.

Yet.................................
Click to expand...

Since I'm in my 70s now, it ain't gunna happen.
 
"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:dlm540FbvlkU1@mid.individual.net...
"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:nIfJy.370706$gz.827@fx40.am4...


"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:dljrodFoaimU1@mid.individual.net...


"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:OSFGy.105338$Na.62911@fx44.am4...


"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:dl0nq0Frbf9U1@mid.individual.net...


"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:z7FGy.119571$zA3.89485@fx38.am4...


"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:dl0kgvFqgcmU1@mid.individual.net...


"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:VgCGy.126812$Mw2.10757@fx35.am4...


"Phil Allison" <pallison49@gmail.com> wrote in message
news:231ebbf7-77b4-4a82-b12c-0ee13d8c979c@googlegroups.com...
Rod Speed e wrote:



Nope,

** Yes it is.


How odd that not one is visible in the quoting,


** Not odd - you snipped them.


Fact.

** No it isn't.



If it was, we'd have a higher rate of electrocutions.


** Massive fallacy.


Not the issue at all.

Even sillier than you usually manage.


** The same repetitious shit that ASD fucked morons can only
manage.



Millions of homes do.

Sweet fuck all do.


** Nope - there are millions you pathetic, ASD fucked liar.



Power and light are separate circuits.

Still power


** Still separate circuits.



Fraid it is correct.

Like hell it is. We have plenty of light 3
core cables without any fused plug tops.

** No we don't.


Like hell it does.

Wrong, as always.


** Shame you cannot post any case - you lying POS.

My win, as always.

FOAD ASAP.

Just watch out for him on the Darwin Awards
site.....................................

Never happened. And when I had moved into the house
I had built on a bare block of land, well before it was legal
to move in, I powered the entire house from the builder's
temporary supply by plugging the entire house in using
a jesus adapter.

I used a long lead from the pole that the builder's temporary
supply was on to the fascia of the house closest to the temp
supply. I had a knot in that lead there which was a melted
enough so I had to cut it off when the council eventually
demanded that I connect the house properly.

Wouldn't have mattered if it did short at the knot, it would
have just blown the fuse in the meter box on the builder's
temporary supply. No fire, no nothing.

You certainly qualify for a Darwin Award

Nope, I know what is perfectly safe, even if you're too stupid to work
that out.

Pride before a fall etc etc

There never was any fall, fuckwit.

Yet.................................

Since I'm in my 70s now, it ain't gunna happen.
Click to expand...

Ahhh - a bitter twisted old fart.

That explains everything.
 
"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:EjBJy.417220$O02.29422@fx38.am4...
"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:dlm540FbvlkU1@mid.individual.net...


"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:nIfJy.370706$gz.827@fx40.am4...


"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:dljrodFoaimU1@mid.individual.net...


"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:OSFGy.105338$Na.62911@fx44.am4...


"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:dl0nq0Frbf9U1@mid.individual.net...


"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:z7FGy.119571$zA3.89485@fx38.am4...


"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:dl0kgvFqgcmU1@mid.individual.net...


"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:VgCGy.126812$Mw2.10757@fx35.am4...


"Phil Allison" <pallison49@gmail.com> wrote in message
news:231ebbf7-77b4-4a82-b12c-0ee13d8c979c@googlegroups.com...
Rod Speed e wrote:



Nope,

** Yes it is.


How odd that not one is visible in the quoting,


** Not odd - you snipped them.


Fact.

** No it isn't.



If it was, we'd have a higher rate of electrocutions.


** Massive fallacy.


Not the issue at all.

Even sillier than you usually manage.


** The same repetitious shit that ASD fucked morons can only
manage.



Millions of homes do.

Sweet fuck all do.


** Nope - there are millions you pathetic, ASD fucked liar.



Power and light are separate circuits.

Still power


** Still separate circuits.



Fraid it is correct.

Like hell it is. We have plenty of light 3
core cables without any fused plug tops.

** No we don't.


Like hell it does.

Wrong, as always.


** Shame you cannot post any case - you lying POS.

My win, as always.

FOAD ASAP.

Just watch out for him on the Darwin Awards
site.....................................

Never happened. And when I had moved into the house
I had built on a bare block of land, well before it was legal
to move in, I powered the entire house from the builder's
temporary supply by plugging the entire house in using
a jesus adapter.

I used a long lead from the pole that the builder's temporary
supply was on to the fascia of the house closest to the temp
supply. I had a knot in that lead there which was a melted
enough so I had to cut it off when the council eventually
demanded that I connect the house properly.

Wouldn't have mattered if it did short at the knot, it would
have just blown the fuse in the meter box on the builder's
temporary supply. No fire, no nothing.

You certainly qualify for a Darwin Award

Nope, I know what is perfectly safe, even if you're too stupid to
work that out.

Pride before a fall etc etc

There never was any fall, fuckwit.

Yet.................................

Since I'm in my 70s now, it ain't gunna happen.

Ahhh - a bitter twisted old fart.

That explains everything.
Click to expand...

You never could bullshit your way out of a wet paper bag.
 
"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:dlo6jdFrlo2U1@mid.individual.net...
"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:EjBJy.417220$O02.29422@fx38.am4...


"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:dlm540FbvlkU1@mid.individual.net...


"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:nIfJy.370706$gz.827@fx40.am4...


"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:dljrodFoaimU1@mid.individual.net...


"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:OSFGy.105338$Na.62911@fx44.am4...


"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:dl0nq0Frbf9U1@mid.individual.net...


"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:z7FGy.119571$zA3.89485@fx38.am4...


"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:dl0kgvFqgcmU1@mid.individual.net...


"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:VgCGy.126812$Mw2.10757@fx35.am4...


"Phil Allison" <pallison49@gmail.com> wrote in message
news:231ebbf7-77b4-4a82-b12c-0ee13d8c979c@googlegroups.com...
Rod Speed e wrote:



Nope,

** Yes it is.


How odd that not one is visible in the quoting,


** Not odd - you snipped them.


Fact.

** No it isn't.



If it was, we'd have a higher rate of electrocutions.


** Massive fallacy.


Not the issue at all.

Even sillier than you usually manage.


** The same repetitious shit that ASD fucked morons can only
manage.



Millions of homes do.

Sweet fuck all do.


** Nope - there are millions you pathetic, ASD fucked liar.



Power and light are separate circuits.

Still power


** Still separate circuits.



Fraid it is correct.

Like hell it is. We have plenty of light 3
core cables without any fused plug tops.

** No we don't.


Like hell it does.

Wrong, as always.


** Shame you cannot post any case - you lying POS.

My win, as always.

FOAD ASAP.

Just watch out for him on the Darwin Awards
site.....................................

Never happened. And when I had moved into the house
I had built on a bare block of land, well before it was legal
to move in, I powered the entire house from the builder's
temporary supply by plugging the entire house in using
a jesus adapter.

I used a long lead from the pole that the builder's temporary
supply was on to the fascia of the house closest to the temp
supply. I had a knot in that lead there which was a melted
enough so I had to cut it off when the council eventually
demanded that I connect the house properly.

Wouldn't have mattered if it did short at the knot, it would
have just blown the fuse in the meter box on the builder's
temporary supply. No fire, no nothing.

You certainly qualify for a Darwin Award

Nope, I know what is perfectly safe, even if you're too stupid to
work that out.

Pride before a fall etc etc

There never was any fall, fuckwit.

Yet.................................

Since I'm in my 70s now, it ain't gunna happen.

Ahhh - a bitter twisted old fart.

That explains everything.

You never could bullshit your way out of a wet paper bag.
Click to expand...

No need - the truth works better.
 
"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:ZTCJy.418189$O02.367204@fx38.am4...
"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:dlo6jdFrlo2U1@mid.individual.net...


"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:EjBJy.417220$O02.29422@fx38.am4...


"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:dlm540FbvlkU1@mid.individual.net...


"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:nIfJy.370706$gz.827@fx40.am4...


"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:dljrodFoaimU1@mid.individual.net...


"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:OSFGy.105338$Na.62911@fx44.am4...


"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:dl0nq0Frbf9U1@mid.individual.net...


"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:z7FGy.119571$zA3.89485@fx38.am4...


"Rod Speed" <rod.speed.aaa@gmail.com> wrote in message
news:dl0kgvFqgcmU1@mid.individual.net...


"Ian Field" <gangprobing.alien@ntlworld.com> wrote in message
news:VgCGy.126812$Mw2.10757@fx35.am4...


"Phil Allison" <pallison49@gmail.com> wrote in message
news:231ebbf7-77b4-4a82-b12c-0ee13d8c979c@googlegroups.com...
Rod Speed e wrote:



Nope,

** Yes it is.


How odd that not one is visible in the quoting,


** Not odd - you snipped them.


Fact.

** No it isn't.



If it was, we'd have a higher rate of electrocutions.


** Massive fallacy.


Not the issue at all.

Even sillier than you usually manage.


** The same repetitious shit that ASD fucked morons can only
manage.



Millions of homes do.

Sweet fuck all do.


** Nope - there are millions you pathetic, ASD fucked liar.



Power and light are separate circuits.

Still power


** Still separate circuits.



Fraid it is correct.

Like hell it is. We have plenty of light 3
core cables without any fused plug tops.

** No we don't.


Like hell it does.

Wrong, as always.


** Shame you cannot post any case - you lying POS.

My win, as always.

FOAD ASAP.

Just watch out for him on the Darwin Awards
site.....................................

Never happened. And when I had moved into the house
I had built on a bare block of land, well before it was legal
to move in, I powered the entire house from the builder's
temporary supply by plugging the entire house in using
a jesus adapter.

I used a long lead from the pole that the builder's temporary
supply was on to the fascia of the house closest to the temp
supply. I had a knot in that lead there which was a melted
enough so I had to cut it off when the council eventually
demanded that I connect the house properly.

Wouldn't have mattered if it did short at the knot, it would
have just blown the fuse in the meter box on the builder's
temporary supply. No fire, no nothing.

You certainly qualify for a Darwin Award

Nope, I know what is perfectly safe, even if you're too stupid to
work that out.

Pride before a fall etc etc

There never was any fall, fuckwit.

Yet.................................

Since I'm in my 70s now, it ain't gunna happen.

Ahhh - a bitter twisted old fart.

That explains everything.

You never could bullshit your way out of a wet paper bag.

No need - the truth works better.
Click to expand...

You wouldn't know what the truth was if it bit you on your lard arse.
 
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