Surge Protection...

[BMill]

Originally Posted by westom

Some are entrenched in lies and myths. Therefore separating science from reality is impossible. Yes, MOVs degrade with use. Immediately on a first surge (a scam). Or one can learn from numbers provided by MOV manufacturers. Acceptable failures means its voltage Vb changes by 10% - and is not sacrificial. 10,000 times is sacrificial? Of course not. If MOVs are sufficiently sized, then it still works decades later. Then its voltage might change by 10% - not fail catastrophically.

Properly sized MOVs in products from responsible manufacturers means MOVs in that protector works just fine decades later after many direct lightning strikes.

How to sell scams to the naive? Undersize and mislocate MOVs. Then it fails on a first surge. Then the most naive '*know*' MOVs are sacrificial. Will even hype near zero joule series mode protectors as if a magic box. Citations that intentionally misrepresent reality come from Zerosurge - not from professional sources. Each is subjective - are marketed to people with poor reading skills and who ignore numbers.

Professional organization describes effective protection as a current connected to earth. Anyone can learn reality only if first eliminating urban myths and half truths promoted by Zerosurge, et al. Or by learning basic electrical concepts. But then one would know why MOVs adjacent to appliances can even make appliance damage easier. And why a protector is only as effective as its earth ground.

One professional citation describes properly earthed protection as 99.5 to 99.9% protection. And then says, Professionals recommend properly earthed protection with numbers. A naysayer cannot.

An example of how *one*, using a power conditioner or UPS, proves why everyone must use one? "If using a power conditioner, then everyone should use one." Poor reading skills means reading what he wants to see. Not what is said. Demonstrated is how the naive *prove* something as necessary. He only read what he wants to see.

Yes, this is why Littelfuse, one of this biggest manufacturers of MOVs, has numbers that fully contradict your claims. You may want to work on your reading comprehension, grammar, and English, before bringing your stick to a gunfight.

Originally Posted by Mena Xiao

A surge protector is good to protect devices like home theater but can't improvement on audio quality at all. It is a publicity stunt. But you still need a surge protector, so learn to tell whether it is a good surge protector. My bestek surge protector has been used for half a year and it works fine.

You obviously have zero experience with quality power conditioners.