"John Williamson"


People have been telling him that for as long as I've been on usenet, and,
from what I read then, even before that.

** ROTFL !!

Tell us - what profession deals with smug, ****wit, know nothing pommy ****s
like you ??



..... Phil

"Dave Plowman Criminal Psychopath "

Phil Allison

Bet the Beeb et alia stopped doing that when they nearly electrocuted the
first guitarist.

1. The most common error in AC plug wiring is Neutral-Earth reverse - the
item works and there is no big problem until you find an AC outlet that has
Active and Neutral reversed.

2. Add a 240:240V iso-transformer that carries the supply ground through to
the outlet and it becomes instantly LETHAL.

Supply earth goes direct to one side of the amp's AC tranny, then the
iso-tranny's 240V winding and back to the amp's chassis. The amp will not
run - but the chassis is 240AC live.



..... Phil

In article ,
Phil Allison wrote:

"Dave Plowman Criminal Psychopath "

Phil Allison

Bet the Beeb et alia stopped doing that when they nearly electrocuted
the first guitarist.

1. The most common error in AC plug wiring is Neutral-Earth reverse -
the item works and there is no big problem until you find an AC outlet
that has Active and Neutral reversed.

2. Add a 240:240V iso-transformer that carries the supply ground through
to the outlet and it becomes instantly LETHAL.

Supply earth goes direct to one side of the amp's AC tranny, then the
iso-tranny's 240V winding and back to the amp's chassis. The amp will not
run - but the chassis is 240AC live.



You seem to have started a new thread quoting just yourself?

Must be the problem when typing with one hand.

BTW, it's very easy to invent a series of stupid reasons why tried and
tested safety measures won't work. By people who don't live in the real
world.

--
*We waste time, so you don't have to *

Dave Plowman London SW
To e-mail, change noise into sound.

On 04/08/2014 12:21, Phil Allison wrote:
"John Williamson"


People have been telling him that for as long as I've been on usenet, and,
from what I read then, even before that.

** ROTFL !!

Tell us - what profession deals with smug, ****wit, know nothing pommy ****s
like you ??

Probably the same one that should deal with smug, ****wit know-nothing
Ozzie ****s like you. HTH.

--
Tciao for Now!

John.

In article , Phil Allison
scribeth thus

"Dave Plowman Criminal Psychopath "

Phil Allison

Bet the Beeb et alia stopped doing that when they nearly electrocuted the
first guitarist.

1. The most common error in AC plug wiring is Neutral-Earth reverse - the
item works and there is no big problem until you find an AC outlet that has
Active and Neutral reversed.

Mind you in the UK moulded on plugs have been around years and years now
haven't got one screw-on one her anywhere and can't remember the last
time I saw one.

As to adversely wired mains sockets anyone here ever seen one connected
arse about face?. Three pin ones that is, two pin are only on the backs
of QUAD 33 pre-amps..


--
Tony Sayer

"tony sayer is a stinking pommy **** "

Phil Allison

Bet the Beeb et alia stopped doing that when they nearly electrocuted
the
first guitarist.

1. The most common error in AC plug wiring is Neutral-Earth reverse - the
item works and there is no big problem until you find an AC outlet that
has
Active and Neutral reversed.

Mind you in the UK moulded on plugs have been around years and years ...


** Shame that does to apply the matter in question.


As to adversely wired mains sockets ....


** Not the matter in question either, but the lack of such miswired outlets
backs my point up.

Now go back to your kiddie fiddling - ****head



..... Phil

On Sun, 03 Aug 2014 16:37:01 +0000 (GMT), Jim Lesurf
wrote:

In article , Don Pearce
wrote:
On Sun, 03 Aug 2014 10:16:40 +0100, "Dave Plowman (News)"
wrote:

We now have the annual PAT test. In my lab once a year a chap comes
round and tests the integrity of the grounding of everything that has a
mains plug, from the 100 grand Network Analyser to the kettle in the
kitchen.

Once he has gone all the oscilloscopes get their grounds removed once
again so they can make floating voltage measurements and not introduce
ground loop mess into normal measurements.

It doesn't actually make anything safer, but the company lawyers like it.

Nice to see that people are maintaining the old traditions. :-)

FWIW When I used to install and use systems on the old UKIRT (Telescope)
they were always 'grounded'. But always gave you a multi-kV static shock if
you were the first to touch them after they'd been left un-touched for
about 10 mins or more. The ground connection was essentially dry rock in a
dry atmosphere. So was little more than a common reference. Certainly not a
way of ensuring no overall charge potential. 8-]

One trick was to send the newest PhD student to adjust the kit and the
watch to see if we could see the spark in the darkened dome. Usually
accompanied by a suitable noise from the student. :-) Rite of passage.

Jim

What do you reckon was the capacitance to true ground? More than a
couple of hundred pF and you can start to feel it properly.

d

In article , Phil Allison
scribeth thus

"tony sayer is a stinking pommy **** "

Phil Allison

Bet the Beeb et alia stopped doing that when they nearly electrocuted
the
first guitarist.

1. The most common error in AC plug wiring is Neutral-Earth reverse - the
item works and there is no big problem until you find an AC outlet that
has
Active and Neutral reversed.

Mind you in the UK moulded on plugs have been around years and years ...


** Shame that does to apply the matter in question.

Well up here in civilised countries it does;!..


As to adversely wired mains sockets ....


** Not the matter in question either, but the lack of such miswired outlets
backs my point up.

Right..

Anyone hereon ever seen a 13 amp mains socket wired arse about face
then?..

--
Tony Sayer

In article ,
tony sayer wrote:
Anyone hereon ever seen a 13 amp mains socket wired arse about face
then?..


No. I've seen earths left off, though. Dunno why.

--
*Frustration is trying to find your glasses without your glasses.

Dave Plowman London SW
To e-mail, change noise into sound.

"tony sayer is a stinking pommy **** "

Phil Allison

Bet the Beeb et alia stopped doing that when they nearly electrocuted
the first guitarist.

1. The most common error in AC plug wiring is Neutral-Earth reverse -
the
item works and there is no big problem until you find an AC outlet that
has Active and Neutral reversed.

Mind you in the UK moulded on plugs have been around years and years ...


** Shame that does to apply the matter in question.

Well up here in civilised countries it does;!..


** Nothing civilised about the how you pommy ****s grossly over-snip and
then reply in another context.

The original context was set in the PAST when mains leads used with
BRITISH made guitar amps often looked like the one in this link.

http://forums.vintageamps.com/viewtopic.php?p=489386

Either ends can be wired wrongly, the Bulgin end being the more likely.


** Not the matter in question either, but the lack of such miswired
outlets
backs my point up.

Right..

** It backs up my point it cos the miswired Bulgin lead would have worked
and not been a serious hazard until it arrived at BBC TV and got plugged one
of their iso trannies.



..... Phil