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From: Phil Allison on 2 Jan 2010 19:39

"David"

" Some pommy retard "

>> However, I can't think of any case where the use of an isolation
>> transformer *increases* any hazard.
>
> Well, I sure can. When they listen to someones advice that it is OK to
> touch either side of the output of the xformer. As Phil pointed out if
> there is a problem that could be lethal


** Aside from the above issue - the number one reason for NOT using an
isolation tranny as the usual supply of AC power on a workbench is that the
very same tech who has become oblivious to the danger of contacting live AC
wiring WILL at some future time and place find themselves working on
energised items WITHOUT the benefit of such isolation.

The DANGER is in the false impression of harmlessness that builds up in the
mind of the tech.

Old habits die hard - but electricity kills quick.



..... Phil


From: sparky on 2 Jan 2010 23:06
On Jan 2, 7:39 pm, "Phil Allison" <phi...(a)tpg.com.au> wrote:
> "David"
>
> " Some pommy retard "
>
> >>  However, I can't think of any case where the use of an isolation
> >> transformer *increases* any hazard.
>
> > Well, I sure can.  When they listen to someones advice that it is OK to
> > touch either side of the output of the xformer.  As Phil pointed out if
> > there is a problem that could be lethal
>
> ** Aside from the above issue -  the number one reason for  NOT using an
> isolation tranny as the usual supply of AC power on a workbench is that the
> very same tech who has become oblivious to the danger of contacting live AC
> wiring  WILL  at some future time and place find themselves working on
> energised items  WITHOUT  the benefit of such isolation.
>
> The DANGER  is in the false impression of harmlessness that builds up in the
> mind of the tech.
>
> Old habits die hard -  but electricity kills quick.
>
> ....  Phil


An isolation transformer does not render an item harmless but it does
provide the technician with an extra tool to use during his work. As
with all things using high voltage common sense must be used. ---- -
- - A thing which seems seriously lacking in this news group.
From: Phil Allison on 2 Jan 2010 23:13

"David"

" Some pommy retard "

>> However, I can't think of any case where the use of an isolation
>> transformer *increases* any hazard.
>
> Well, I sure can. When they listen to someones advice that it is OK to
> touch either side of the output of the xformer. As Phil pointed out if
> there is a problem that could be lethal


** Aside from the above issue - the number one reason for NOT using an
isolation tranny as the usual supply of AC power on a workbench is that the
very same tech who has become oblivious to the danger of contacting live AC
wiring WILL at some future time and place find themselves working on
energised items WITHOUT the benefit of such isolation.

The DANGER is in the false impression of harmlessness that builds up in the
mind of the tech.

Old habits die hard - but electricity kills quick.



..... Phil



From: Michael A. Terrell on 3 Jan 2010 00:51

Phil Allison wrote:
>
> "David"
>
> " Some pommy retard "
>
> >> However, I can't think of any case where the use of an isolation
> >> transformer *increases* any hazard.
> >
> > Well, I sure can. When they listen to someones advice that it is OK to
> > touch either side of the output of the xformer. As Phil pointed out if
> > there is a problem that could be lethal
>
> ** Aside from the above issue - the number one reason for NOT using an
> isolation tranny as the usual supply of AC power on a workbench is that the
> very same tech who has become oblivious to the danger of contacting live AC
> wiring WILL at some future time and place find themselves working on
> energised items WITHOUT the benefit of such isolation.
>
> The DANGER is in the false impression of harmlessness that builds up in the
> mind of the tech.
>
> Old habits die hard - but electricity kills quick.
>
> .... Phil


Then you should be dead by now.


--
Greed is the root of all eBay.
From: sparky on 3 Jan 2010 10:51
On Jan 3, 10:48 am, Meat Plow <m...(a)petitmorte.net> wrote:
> On Sun, 3 Jan 2010 15:13:01 +1100, "Phil Allison"
> <phi...(a)tpg.com.au>wrote:
>
>
>
>
>
>
>
> >"David"
>
> >" Some pommy retard "
>
> >>>  However, I can't think of any case where the use of an isolation
> >>> transformer *increases* any hazard.
>
> >> Well, I sure can.  When they listen to someones advice that it is OK to
> >> touch either side of the output of the xformer.  As Phil pointed out if
> >> there is a problem that could be lethal
>
> >** Aside from the above issue -  the number one reason for  NOT using an
> >isolation tranny as the usual supply of AC power on a workbench is that the
> >very same tech who has become oblivious to the danger of contacting live AC
> >wiring  WILL  at some future time and place find themselves working on
> >energised items  WITHOUT  the benefit of such isolation.
>
> >The DANGER  is in the false impression of harmlessness that builds up in the
> >mind of the tech.
>
> >Old habits die hard -  but electricity kills quick.
>
> Becomeing complacent in or unconcerned with electrical hazards is a
> fact of life (or death.) You're not going to save the world.- Hide quoted text -
>
> - Show quoted text -



Anyone using an isolation transformer should not become complacent.
It is a tool with hazards.
Just the same as using a power saw has hazards, but the hazards can be
minimized and the user must be vigilant.
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