Originally Posted by AV Doogie
Do these devices have any listings for tests performed? I am not able to find any. So the question remains. Why would you use these devices?
Your telco suffers typically 100 surges with every thunderstorm. How often is your town without phone service for 4 days while they replace their computers? Never? Telcos waste no money on Surgex that magically make energy disappear. Even in the 1950s, research in the Bell System Technical Journal described surge protection. Same concepts even found in 1880 surge protection solutions. Same concepts demonstrated by Franklin in 1752. Same concepts taught in second grade science.
Research is well proven by example in every town. The usually nasty naysayers could be fired for implementing their 'miracle' plug-in solutions in such facilities. Reliable facilities do not waste money on plug-in protectors and always - as in there is no exception - always use best earthing.
IEEE papers, NIST, IEC, US Air Force, or even Sun Microsystems's Planning guide for Sun Server room:
> Lightning surges cannot be stopped, but they can be diverted. The plans for the data center
> should be thoroughly reviewed to identify any paths for surge entry into the data center. Surge
> arrestors can be designed into the system to help mitigate the potential for lightning damage
> within the data center. These should divert the power of the surge by providing a path to
> ground for the surge energy.
For each one discussion based in science is maybe 30,000 advertisements. Same technique also proved another myth. Saddam had WMDs because a majority only believe what advertising orders them to believe. Lemmings. Same lemming who do not post even one manufacturer spec number.
In every case, protection has always been about earth ground. Well documented where science and experience is promoted. Denied only by those educated by retail propaganda. Surges seek earth ground. No way around that reality. Whole house' protectors and Franklin's lightning rods are successful protection. Both are useless without the only thing that does protection - earth ground. You don't need technical papers to learn that. It was even taught in 2nd grade science.
Telcos in every town - as was done even 100 years ago - do not waste money on plug-in protectors. They do not want to enrich scammers. They need protection. So they spend tens or 100 times less money to earth protectors short to single point ground. And spend massively to upgrade the earthing. A professional's application note demonstrates how two structures are always protected - which means earthing even underground cables:http://www.erico.com/public/library/...es/tncr002.pdf
To increase protection, telcos locate protectors up to 50 meters distant from electronics. Reasons why are obvious from basic electrical concepts. And unknown to those only educated by advertising. Same electrical reasons are why every foot shorter between protector and single point earth ground also increases protection.
Either hundreds of thousands of joules are harmlessly earthed outside a building. Or that energy is inside hunting for earth destructively via appliances. Somehow a magic box (rated at hundreds of joules) will magically make that hundred of thousands of joules magically disappear? A majority say so with denials, nasty insults, and where are those numeric specifications that naysayer never provide?
Why do munitions dumps only use earthing and whole house' protectors. Munitions dumps need protection from all surges including direct lightning. Money is not wasted on plug-in scams. Effective protection systems cost many times less money. And in every case, without exception, involve the always required short connection from every wire inside every incoming cable to single point ground. A best solution was pioneered in munitions dumps - Ufer grounds.
This is not for naysayers brainwashed by advertising. They will post nasty replies devoid of where is that manufacturer spec? Same naïve naysayers (who foolishly disparage one of the best protector components - MOVs) also could be told Saddam had WMDs. Magically knew it must be true. Same magic in a Surgex that makes hundreds of thousands of joules disappear.
Once a whole house' protector is properly earthed, then direct lightning strikes (ie 20,000 amps) create only hundreds of volts. Easily made irrelevant by protection inside every appliance. Even the most sensitive - ie dimmer switches. Routine is to have direct lightning strikes without damage - ie every telco CO in every town. Facilities that can never have damage earth whole house' protectors; do not waste money on plug-in scams. Well proven in over 100 years of science. Science is not found in advertising brochures.
Protection is always about where energy dissipates. Scammers pretend that protector makes energy magically disappear. No earth ground means no protection. A protector is only as effective as its earth ground - as was understood even 100 years ago.