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Electrical Short... Kewless 05-07-2007
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Posted by Bud-- on May 13, 2007, 7:08 pm
w_tom wrote:
>
> w_tom provided numerous sources of facts.

Never seen - a source that says plug-in suppressors are NOT effective.
Or that UL-1449-2ed is a problem.


> Bud would have everyone
> believe IEEE, et al recommend plug-in protectors. Wrong. IEEE makes
> recommendations in standards - not in papers. Many IEEE Standards
> each define one thing essential for protection: earthing. Not a
> protector. Earthing.

With a minimal ability to read anyone, except apparently w_, can look at
the IEEE guide, pdf page 4 and find that the guide was peer-reviewed in
the IEEE and represents the views of the IEEE.
But w_ has a religious belief (immune from challenge) that surge
protection must use earthing. w_ must deny what is obvious to protect
his belief in earthing.


>
> Bud's own citation (Page 42 Figure 8) shows TVs being damaged - 8000
> volts destructively - because a protector was too close to appliances
> and too far from earthing.

[The illustration, from the IEEE guide, shows a surge on a CATV cable
and 2 TVs, TV1 has a plug-in suppressor.]
The new lie.
The “protector” does not cause any damage. The “protector” protects TV1.
The “protector” reduces the surge at the TV2 from 10,000V to 8,000V.
With minimal reading ability anyone, almost, can read the text - "to
protect TV2, a second multiport protector located at TV2 is required".
The IEEE guide says plug–in suppressors are effective.
But w_ must discredit the guide (as above) and distort the guide (here)
to protect his religious belief in earthing.


>
> What does a protector do? Earth. A protector with a short (ie
> 'less than 10 foot') connection to earth provides a non-destructive
> surge path.

The religious belief in earthing #2. But the IEEE guide, as stated
numerous times, explains plug-in suppressors work primarily by clamping
the voltage on all wires (power and signal) to the common ground at the
suppressor, not earthing. The IEEE guide says earth grounding occurs
elsewhere.


> But
> a protector too far from earth ground and too close to TVs .... that
> is Page 42 Figure 8 in Bud's citation - TVs destroyed.

The new lie repeated.


>
> Effective surge protection earths a typically destructive surge so
> that 8000 volts does not pass through TVs - page 42 figure 8.

The new lie #3.


> ... 'whole house'
> protectors. Some models are available in Lowes and Home Depot for
> less than $50.

Challenged by many people.
Lowes online has no ‘whole house’ protectors.
Home Depot has no ‘whole house protectors near $50.
Yet another of w_’s ‘facts’ which he can provide no link to substantiate.


> No wonder effective protectors have a dedicated wire
> just for earthing.

The religious belief in earthing #3.


>
> Bud hopes the lurker will not notice what his other citation says:
> http://www.nist.gov/public_affairs/practiceguides/surgesfnl.pdf
> Adobe page 8 (page 6) says:
>
>>You cannot really suppress a surge altogether, nor
>>"arrest" it. What these protective devices do is
>>neither suppress nor arrest a surge, but simply
>>divert it to ground, where it can do no harm. So
>>a name that makes sense would be "surge diverter"
>>but it was not picked. So, for the rest of this
>>booklet, we will stick to the most popular "surge
>>protector".

What does the NIST guide actually say about plug–in suppressors?
They are "the easiest solution".

and:
"Q - Will a surge protector installed at the service entrance be
sufficient for the whole house?
A - There are two answers to than question: Yes for one-link appliances,
No for two-link appliances [equipment connected to power AND phone or
CATV or....]. Since most homes today have some kind of two-link
appliances, the prudent answer to the question would be NO - but that
does not mean that a surge protector installed at the service entrance
is useless."

Again w_ must distort what a guide actually says to protect his
religious belief in earthing.


>
> Bud also posts that protectors clamp - but do not earth? Earthing
> is defined as necessary by his own citations. A protector is not
> protection. A protector is nothing more than a connecting device to
> protection. An effective protector 'shunts' a surge to protection.
> What is the protection? Earth ground.

The religious belief in earthing #4.
I only repeat what the IEEE guide says - plug-in suppressors work
primarily by clamping, not earthing.


> As Bud's Page 42 Figure 8 demonstrates - a protector too
> close to appliances and too far from earth ground may '8000 volts'
> overwhelm and destroy internal appliance protection.

The new lie #4.



Want to know if plug–in suppressors work? Read the IEEE and/or NIST
guides. Both guides say plug-in suppressors are effective.

Then read w_’s sources:
Never a link that says plug-in suppressors are NOT effective.
Never a link that says UL-1449-2ed is a problem.
Never a link to a $50 ‘whole house’ suppressor.
All you get is w_'s beliefs.


Bizarre claim - plug-in surge suppressors don't work
No sources.
Distort or attempt to discredit opposing sources.
Attempt to discredit opponents.
w_ is a purveyor of junk science.


--
bud--




Posted by Bud-- on May 12, 2007, 12:57 pm
w_tom wrote:

> Bud is so
> desperate to prove a point - to promote his product

To quote w_: "It is an old political trick. When facts cannot be
challenged technically, then attack the messenger." My only association
with surge protectors is I have some. And I don't recommend people use
plug-in suppressors. I only recommend people make decisions based on
facts, not lies and junk science.


> Protectors that even meet UL1449 2nd
> edition create those scary pictures.

A lie w_ keeps repeating. With no technical arguments against plug-in
protectors all he has left is the lie. Provide a link that says
UL-1449-2ed is a problem.


>
> How does UL1449 2nd edition make 'scary pictures' less likely?
> Disconnect protector components faster. Abandon an adjacent appliance
> to the surge.

Another version of the “undersized” red herring. Suppressors are readily
available with very high ratings.


> No
> wonder plug-in protectors don't even claim to protect from the
> typically destructive type of surge.

A repetition of the “really stupid statement”. Plug-in suppressors have
MOVs from H-N, H-G, N–G. Which surge mode does that not cover? Never
explained by w_ (because there is no explanation).


>
> 'Whole house' protectors ...
> have that essential earthing wire

This is the *real* issue for w_. He believes you cannot suppress
surges without a short wire to earth. But the IEEE guide to surges and
surge suppression at:
http://omegaps.com/Lightning%20Guide_FINALpublishedversion_May051.pdf
explains that plug-in suppressors work primarily by clamping the voltage
on all wires (power and signal) to the common ground at the suppressor,
not earthing. The guide says earth grounding occurs elsewhere. The IEEE
is the major association of electrical engineers in the US and publishes
standards on surges. But poor w_ can’t find anyone who agrees with him.
So he lies with pathetic scare tactics. And sets up a straw man, a
“grossly undersized” suppressor, when suppressors with high ratings are
readily available.

The IEEE guide above (the link originally came from w_) has excellent
information. And it says plug-in suppressors are effective. In the only
2 examples of surge suppression, plug-in suppressors are used. I guess
the IEEE doesn’t know about the “sparks and flames”.

Another excellent guide on surges and protection is from the National
Institute of Standards and Technology at:
http://www.nist.gov/public_affairs/practiceguides/surgesfnl.pdf
and also says plug-in suppressors are effective.

So believe the IEEE, NIST and hanford.

Or believe the lies and junk science from w_. He has no links that
support his beliefs.

--
bud--


Posted by Kewless on May 9, 2007, 9:21 am

On 7-May-2007, w_tomwrote:

> You are not the only one who has experienced such problems with plug-
> in protectors:
> http://www.hanford.gov/rl/?page=556&parent=554
> http://www.westwhitelandfire.com/Articles/Surge%20Protectors.pdf
> http://www.ddxg.net/old/surge_protectors.htm
> http://www.zerosurge.com/HTML/movs.html
>
> Better is a simple $4 power strip with that all so important 15 amp
> circuit breaker. Short would have only tripped the breaker - would
> not contain internal components mislocated where fire is a threat;
> such as in those above pictures.

The first thing I did (after examining its charred remains) was to toss my
surge-protector in the trash. It never occurred to me to take pictures.
I wish I had...

Posted by Bob on May 8, 2007, 11:16 am
>The moral being that perhaps having my electronics
>sitting directly on a metal shelf is not such a good idea. ; - ))

Not really.

You should contact the surge manufacture and tell them what happened. If
they don't stand behind there product then you should not be buying anything
made by them.


> Who knows? By posting this, it might be that I get to save a life or
> two somewhere down the road...
>
> Awhile back, I bought one of those *trendy* steel-wire bookcases
> for my bedroom office. On one shelf, I set up my monitor so that I
> could use it from bed (bad back). While on the bottom shelf, I put
> the computer itself, along with the surge-protector...
>
> I felt reasonably assured that I had enough insulation -- as
> both computer and monitor have fairly *beefy* plastic bases. As
> it turns out though, I should have been a little more concerned!
>
> Yesterday, just as I was leaving to go to a job, my SO called me
> back and asked if I knew anything about a strange odor coming
> from the back bedroom. The odor, as I soon found out, was smoke.
> Apparently,the surge-protector shorted against the wire shelving --
> and in doing so sparked off a small electrical fire!
>
> The wife and I are feeling pretty darned fortunate today -- all
> we've lost is a printer cable and a surge-protector. And yet, I
> feel slightly embarrassed (and a little guilty) whenever I look
> over at this big black spot that we now have on the carpet. I
> SHOULD HAVE KNOWN BETTER!
>
> Still, I suppose if pride is all I'm down, then I should consider
> myself blessed -- as it's a small price to pay for such an invaluable
> lesson. The moral being that perhaps having my electronics
> sitting directly on a metal shelf is not such a good idea. ; - ))



Posted by on May 8, 2007, 11:22 am
> >The moral being that perhaps having my electronics
> >sitting directly on a metal shelf is not such a good idea. ; - ))
>
> Not really.
>
> You should contact the surge manufacture and tell them what happened. If
> they don't stand behind there product then you should not be buying anything
> made by them.
>
>
>
>
>
> > Who knows? By posting this, it might be that I get to save a life or
> > two somewhere down the road...
>
> > Awhile back, I bought one of those *trendy* steel-wire bookcases
> > for my bedroom office. On one shelf, I set up my monitor so that I
> > could use it from bed (bad back). While on the bottom shelf, I put
> > the computer itself, along with the surge-protector...
>
> > I felt reasonably assured that I had enough insulation -- as
> > both computer and monitor have fairly *beefy* plastic bases. As
> > it turns out though, I should have been a little more concerned!
>
> > Yesterday, just as I was leaving to go to a job, my SO called me
> > back and asked if I knew anything about a strange odor coming
> > from the back bedroom. The odor, as I soon found out, was smoke.
> > Apparently,the surge-protector shorted against the wire shelving --
> > and in doing so sparked off a small electrical fire!
>
> > The wife and I are feeling pretty darned fortunate today -- all
> > we've lost is a printer cable and a surge-protector. And yet, I
> > feel slightly embarrassed (and a little guilty) whenever I look
> > over at this big black spot that we now have on the carpet. I
> > SHOULD HAVE KNOWN BETTER!
>
> > Still, I suppose if pride is all I'm down, then I should consider
> > myself blessed -- as it's a small price to pay for such an invaluable
> > lesson. The moral being that perhaps having my electronics
> > sitting directly on a metal shelf is not such a good idea. ; - ))- Hide
quoted text -
>
> - Show quoted text -



Yes, it's not clear how the surge protector "shorted" against the
metal shelving. Something clearly had to be defective and sitting
electronics on a metal shelf should not have anything to do with it.


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