On May 1, 12:19*pm, bud-- wrote:
As trader4 has shown, all of these "responsible" companies except
SquareD and Polyphaser make plug-in suppressors. Must be they aren't
"responsible" at all.

Even I would sell someone a plug-in protector. Profits are that
massive - obscene. Of course, I too must claim no protection from
typically destructive surges.. So where is that bud numeric spec that
claims his plug-in protectors provides any protection. He still
cannot find even one. He pretends the question has not been asked
1000 times - and never answered.

Meanwhile only companies with responsible names make protectors that
actually earth surge energy. Nothing from APC, Tripplite, Belkin, or
Monster Cable will do that - or even claims to.

bud cannot post even one manufacturer spec that claims protection.
Why? Plug-in protectors don't claim that protection. When too close
to electronics and too far from earth ground, that few hundred joules
must absorb hundreds of thousands of joules?

So it either does nothing OR the surge is earthed destructively by
some other appliance, OR one 'whole house' protector means the power
strip protector never sees any significant surge energy. Why spend
money on so many plug-in protectors when one 'whole house' protector
does so much?

Why do high reliability facilities use 'whole house' protectors and
earthing. Why do so many factilities only use earthed protectors -
not plug-in protectors? Because they need protection. And because
they have no interest in enriching bud and his peers.

Protection is only as effective as its earth ground. That also
means a short (low impedance - not just low resistance) connection to
earth. Polyphaser (an industry benchmark) even makes a protector that
has no connection to earth. To obtain low impedance, the Polyphaser
protector mounts ON earth ground - zero feet to earth. No matter
how sales promoters spin it, protectors are only as effective as their
earthing. No wonder earthing is always done carefully in every
facility that has no surge damage.

High reliability facilities upgrade their earthing and
Install the surge protection as soon as practical where the conductor
enters the interior of the facility. - US Air Force
OR
bonding all services together with a low impedance path to earth
ground. - Schmidt Consulting
OR
In actual practice, lightning protection is achieve by the process
of interception of lightning produced surges, diverting them to
ground - IEEE Std 141 (Red Book)
OR
Conceptually, lightning protection devices are switches to ground.
Dr Kenneth Schneider
OR
A properly installed lightning protection system intercepts the
lightning bolt between cloud and earth and harmlessly conducts
it to ground without damage. - IPC Company
OR
Of course you *must* have a single point ground system that
eliminates all ground loops. And you must present a low
*impedance* path for the energy to go. That's most generally a
low *inductance* path rather than just a low ohm DC path.
- Gary Coffman Station Engineer WXIA-TV
OR
The basic scenario is to install a Single Point Ground System
that is installed at the building entry. It shunts everything to
ground before it goes in the building. If you can keep it outside,
then you don't really have to do much inside. - many discussions
on surge protection at http://lists.contesting.com/_towertalk/
OR
1) Capture lightning strikes at a preferred point(s)
2) Conduct the energy safely to ground
3) Dissipate energy into ground
4) Equipotentially bond all grounds
- "Need for Coordinated Protection" from Erico.com
OR
First and foremost, there should be only one ground system.
Second, the individual l/O protectors need to be co-located
on the same electrical ground plane. This means
establishing a single point ground system within the
equipment building. - Polyphaser application note
OR
Lightning surges cannot be stopped, but they can be diverted.
... These should divert the power of the surge by providing a
path to ground for the surge energy. - Sun Microsystem planning
guide for server rooms.
OR
The purpose of the ground connection is to take the energy arriving
on the antenna feed line cables and control lines (and to a lesser
extent on the power and telephone lines) and give it a path back to
the earth, our energy sink. The impedance of the ground connection
should be low so the energy prefers this path and is dispersed
harmlessly. - ARRL's QST magazine July 2002 on ""Lightning
Protection for the Amateur Radio Station"
OR
Without proper bonding, all other elements of the LPs are useless.
Bonding of all metallic conductors in a dispatch facility assures
everything is at equal potential. ... This eliminates the unequal
voltages in separate sensitive signal and data systems. Bonding
should connect all conductors to the same "Mother Earth."
- National Lightning Safety Institute
OR
Those who say "nothing will withstand a direct lightning strike"
are very misinformed. My towers take direct lightning hits most
every big storm. .... With NO damage!
Those old wives tales of damage are for the most part over 50
year old tales of woe from improperly grounded/ protected
stations. - Charles Bushell - KC8VWM and numerous others
on eham.net
OR
Surge protection devices should ideally operate instantaneously
to divert a surge current to ground with no residual common-mode
voltage presented at the equipment terminals. - Atlantic Scientific
OR
Failure to observe any part of this grounding requirement may
result in hazardous potential being developed between the
telephone (data) equipment and other grounded items -
IEEE Standard 1100 (Emerald Book)
OR
In one memorable instance at KROA, lightning ignored the existing
grounding system and instead followed the coaxial cable directly
into the transmitter room. ... the incident was a strong indication
that the grounding system should be improved. - "Proper Copper
Grounding Systems Stops Lightning Damage at Nebraska FM
Station"
OR
A surge protection device (SPD), also known as a transient voltage
surge suppressor (TVSS), is designed to divert high-current surges
to ground and bypass your equipment, thereby limiting the voltage
that is impressed on the equipment. For this reason, it is critical that
your facility have a good, low-resistance grounding system, with a
single ground reference point to which the grounds of all building
systems are connected. Without a proper grounding system, there
is no way to protect against surges. - "Guidelines For Providing
Surge Protection at Commercial, Institutional, and Industrial
Facilities"
OR
Lightning cannot be prevented; it can only be intercepted or
diverted to a path which will, if well designed and constructed,
not result in damage. - IEEE Standard 142 (Green Book)
OR
Surge protection takes on many forms, but always involves the
following components: Grounding bonding and surge protectors. ...
Grounding is required to provide the surge protector with a path
to dump the excess energy to earth. A proper ground system is
a mandatory requirement of surge protection. Without a proper
ground, a surge protector has no way to disburse the excess
energy and will fail to protect downstream equipment. - FAQ
from Southwest Bell on surge protection
OR
TVSS devices showed to reduce the peak voltage of the
transient surges ... This was accomplished because the TVSS
... thus provided a low impedance path to ground for the
transient surge. geindustrial.com white paper "The Influence
Of Cable Connections on TVSS Performance"
OR
The breakdown of the gap forms a very low impedance path
to ground thus diverting the surge away from the equipment.
Littelfuse application note "Surge Suppression Technologies
for AC Mains Compared"
OR
The primary protection is intended to divert fault currents
away from the protected equipment and into a reliable earth
ground. - Legerity App note "Overvoltage Protection of
Solid-State Subscriber Loop Circuits"
OR
Providing a flow path for the lightning current is central to
effective lightning protection. ... Lightning is essentially a
current impulse which is trying to return to earth. - EE
Times Apr 2008 "Protecting electrical devices from
lightning transients"
OR
All work by reacting to the excess voltage caused by
the surge and by changing electrical state to conduct
the surge energy safely to earth. If correctly specified,
they will reduce the surge voltage to below the
withstand voltage of the connected equipment.
- Bowthorpe's discussion of BS6651 - a British
standard for surge protection.

How does his protector stop what three miles of sky could not? How
does he explain his protector earthing a surge 8000 volts
destructively through an adjacent TV? He pretends we engineers also
did not see that damage. So where is that manufacturer spec that
claims all this protection? Even bud cannot find one? But we should
believe the sales promoter?

We earth one 'whole house' protector for the 99.5% protection.
Some may spend massively on power strip protectors if another 0.5%
protection is required. Just more numbers from an IEEE Standard that
bud must ignore. Profits are at risk.