w_tom wrote:

Why does a plug-in protector
fail during a surge? Why is it so grossly undersized?

For poor w_, all plug-in suppressors have minuscule ratings and all
service panel suppressors have mega ratings. Plug–in suppressors with
very high ratings are readily available .


Learn why plug-in protectors may even earth surges destructively
through appliances. The surge must be earthed somewhere. Page 42
Figure 8 in
http://omegaps.com/Lightning%20Guide...ion_May051.pdf

The illustration in the IEEE guide has a surge coming in on a cable
service. There are 2 TVs, one is on a plug-in suppressor. The plug-in
suppressor protects TV1, connected to it.

Without the plug-in suppressor the surge voltage at TV2 is 10,000V. With
the suppressor at TV1 the voltage at TV2 is 8,000V. It is simply a *lie*
that the plug-in suppressor at TV1 in any way contributes to the damage
at TV2.

The point of the illustration for the IEEE, and anyone who can think, is
"to protect TV2, a second multiport protector located at TV2 is required."

w_ says suppressors must only be at the service panel. In this example a
service panel protector would provide absolutely *NO* protection. The
problem is the wire connecting the cable entry block to the power
service ‘ground’ is too long (not a "single point ground"). The IEEE
guide says in that case "the only effective way of protecting the
equipment is to use a multiport protector."

Because plug-in suppressors violate w_'s religious belief in earthing
he has to lie about what the IEEE guide says about them.


A plug-in protector too close to an appliance has earthed a surge
*8000 volts destructively* through an adjacent TV.

The lie repeated.

Bud needs you to 'feel' it
protects by absorbing the entire surge - sacrificing itself.

If you don’t have technical arguments, misquote someone.

Repeating:
“The IEEE guide explains plug-in suppressors work by CLAMPING ....
Plug-in suppressors do not work primarily by earthing (or stopping or
absorbing).”

No effective protector
does that stopping or absorbing.

Only w_ talks about stopping or absorbing. If only he could think...

But when a plug-in protector is
undersized, scary pictures may result:
http://www.hanford.gov/rl/?page=556&parent=554

w_ can't understand his own hanford link. It is about "some older
model" power strips and says overheating was fixed with a revision to
UL1449 that required thermal disconnects. That was 1998. There is no
reason to believe, from any of these links, that there is a problem with
suppressors produced under the UL standard that has been in effect since
1998.

But with no valid technical arguments all w_ has is pathetic scare tactics.

Bud's citation even defines the effective
protector. From page 6 (Adobe page 8 of 24)

What does the NIST guide really 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
cable 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."

Because plug-in suppressors violate w_'s religious belief in earthing
he has to lie about what the NIST guide says about them.



Divert it to where? Where is surge energy dissipated?

Repeating:
“The guide explains earthing occurs elsewhere.”


A grossly undersized protector's MOV may vaporize so you will
believe myths.

The “grossly undersized” red herring again.

No earth ground means no effective
protection.

You may not have noticed, but airplanes drag an earthing chain.

One 'whole house' protector is located where each
wire enters the building, where the protector connects directly to
earth ground, AND up to 50 meters separation from electronics.

What does the NIST guide say? Repeating:
"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
cable 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."


A protector is only as effective as its
earth ground.

And the final required statement of religious belief in earthing.

Everyone is in favor of earthing. The only question is whether plug-in
suppressors work. Both the IEEE and NIST guides say plug-in suppressors
are effective. Read the sources.

Still no link to another lunatic that says plug-in suppressors are NOT
effective. Only w_'s opinions based on his religious belief in earthing.

And never any answers:
- Why do the only 2 examples of protection in the IEEE guide use plug-in
suppressors?
- Why does the NIST guide says plug-in suppressors are "the easiest
solution"?
- How would a service panel suppressor provide any protection in the
IEEE example, pdf page 42?

Bizarre claim - plug-in surge suppressors don't work
Never any sources that say plug-in suppressors are NOT effective.
Twists opposing sources to say the opposite of what they really say.
Invents opinions and attributes them to opponents.
w_ is a purveyor of junk science.

--
bud--