Looking at the numbers, the "best" surge protection in joules is the power conditioner at 5270 Joules. The others are only a couple of hundred and would protect minor surges through typical power distribution.
So which number claims protection from each type of surge? No number is posted. It says what is inside. And makes no protection claims. Most of what is inside is already done better inside electronics.
First destructive surges are hundreds of thousands of joules. So each protector will absorb that energy or magically make that energy disappear? Nonsense. That a $3 power strip. Add some ten cent protector parts. Sell it for $7 in a grocery store. Or $25 or $150 as a hyped protector. Or the equivalent protector circuit is in the power conditioner for how much? Maybe 50% of the price is total profit.
Surges seek earth ground. No protector - not even the 'whole house' protector - does protection. A protector must have an always short connection to the only thing that does protection. From Dr Kenneth Schneider:
>Conceptually, lightning protection devices are switches to ground. Once a threatening surge
> is detected, a lightning protection device grounds the incoming signal connection point
> of the equipment being protected. Thus, redirecting the threatening surge on a path-of-least
> resistance (impedance) to ground where it is absorbed.
>Any lightning protection device must be composed of two "subsystems," a switch which is
> essentially some type of switching circuitry and a good ground connection-to allow
> dissipation of the surge energy. The switch, of course, dominates the design and the
> cost. Yet, the need for a good ground connection can not be emphasized enough.
> Computer equipment has been damaged by lightning, not because of the absence of a
> protection device, but because inadequate attention was paid to grounding the device
> properly.
Where is a 'less than 10 foot' connection to single point earth ground? Since it does not exist, then where does all that energy dissipate?
BTW, some numbers make no sense. For example a let-through voltage of 40 is obviously wrong. Let-through voltages are 330 or 400 volts. A protector does nothing - remains inert - until 120 volts exceed 330 volts.
Nothing in those specs lists each type of surge and protection from those surges. So learn what all protectors do.
A surge seeks earth ground. Either a surge is earthed before it enters the building. Then hundreds of thousands of joules dissipate harmlessly outside the building. Any facility that can never have damage only uses this solution.
Or that surge is inside a building hunting for earth destructively via appliances. Nothing inside the building - ie APC products - can stop the hunt. Or even claim to. A surge increases its voltage as necessary to blow through anything that might stop it. Surges inside a building select and damage an appliance. Nothing inside a building averts a hunt destructively via an appliance. Nothing.
So your specs imply protection exists. And will not even discuss the surge that typically does damage. You know it does not do protection. It does not have the always required short (less than 10 foot) and dedicated wire to earth ground. Where does energy dissiapte? Your every post must discuss that answer.
Protection is always about where energy dissipates. Reliable facilities only earth 'whole house' protectors. Reliable facilities divert that money, instead, into the only thing that does surge protection - single point earth ground. Your every question must be based in this reality. Protection is always about where energy dissipates.
Dr Martzloff says plug-in (point of connection) protector can even contribute to appliance damage. In his IEEE paper is this first conclusion:
> Conclusion:
> 1) Quantitative measurements in the Upside-Down house clearly show objectionable difference
> in reference voltages. These occur even when or perhaps because, surge protective devices are
> present at the point of connection of appliances.
Nothing adjacent to the appliance will stop the hunt. Nothing. But that myth is so profitable that a majority will just blindly believe the myth.
You know the manufacturer does not provide protection. 1) The protector does not have an 'always' required short (ie 'less than 10 foot') connection to single point earth ground. 2) The manufacturer avoids all discussion about earthing. Where does energy dissipate? Why is earthing so critical? The NIST (US government research agency) says what those protectors without earthing do:
> A very important point to keep in mind is that your surge protector will work by diverting
> the surges to ground. The best surge protection in the world can be useless if grounding
> is not done properly.
APCs were defined ineffective. The NIST is blunter. NIST says money spent on plug-in protection is "useless". Protection is ... always ... about where energy dissipates. A solution that costs you tens or 100 times less money. I do not exaggerate. The effective solution does not have massive profit margins to pay for advertising and other myths.
No earth ground means no effective protection. No protector does protection. Protector circuits connect energy to the only thing that absorbs hundreds of thousands of joules - single point earth ground. How do 1755 and never more 3510 joules absorb surges that are hundreds of thousands of joules? A protector is only as effective as its earth ground. And so those specifications list no protection from each type of surge.
One claims to divert 160 kamps. Where? Traditionally to earth destructively via adjacent appliances. They forgot to claim protection in the only place they cannot lie. Where does that hundreds of thousands of joules dissipate? No hard facts because it does not provide effective protection. That power conditioner is a power strip protector with a higher price. So do you believe hearsay and advertising? Or do industry professionals - IEEE papers, NIST, Dr Schneider, etc – dominate your knowledge? Those APC specs do not claim protection from any type of surge. What they forget to mention – it protects from a type of surge that does not typically cause damage.
Buy a UPS only for temporary and 'dirty' power. Surge protection must be located elsewhere.
