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surge protector vs. the refrigerator
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westom
Posted 7/16/2021 22:42 (#9114195 - in reply to #9112759)
Subject: RE: surge protector vs. the refrigerator


conservation cop - 7/16/2021 07:29
... but it got me thinking about surge protector for the fridge so this doesn't happen again. However, what I've read online is to NOT use one on the fridge.

Unfortunately many will only recite what urban myths have told them to believe. For example, nothing adjacent to an appliance even claims effective protection. As made obvious when answers are based in numbers.

Surges can be hundreds of thousands of joules. How many joules will a plug-in protector 'block' or 'absorb'? Thousand? When did something near zero become effective.

Even worse is a UPS recommendation. How many joules are listed in its numeric specifications? Hundreds? How many times less protection is that? And why would anyone recommend those ineffective items? Advertising, hearsay, and wild speculation is somehow proof.

If any one appliance must be protected, then all (dishwasher, clock radio, central air, LED & CFL bulbs, recharging electronics, TVs, furnace, garage door opener, microwave, washing machine, GFCIs, doorbell, smoke detectors) everything must be protected. That effective solution was standard even over 100 years ago when direct lightning strike could not cause damage.

Best solution: spend about $1 per appliance for one 'whole house' protector. But no protector (not one) does any protection. Effective protectors are connected low impedance (ie less than 10 feet) to single point earth ground. All four words have electrical significance. Any protector without that low impedance connection is best called a scam. Because it does not answer the question that defines all effective protection. Where are hundreds of thousands of joules harmlessly absorbed?

Protection only exists when a surge is not anywhere inside.  When protection is doing what even Franklin demonstrated over 250 years ago.

A 'whole house' protector comes from other companies know for integrity.  Integrity also means they say so with numbers.  Lightning is typically 20,000 amps.  So a minimal 'whole house' protector is 50,000 amps.  Best protection, for about $1 per protected appliance, means best protection already inside all appliances is not overwhelmed.


Only urban myths inspired by fear claim any outage, low voltage, or blip does damage. If it did, then it damaged everything. Unfortunately many are only educated by fear. Recommendations that do not also say why and cite relevant numbers are always best ignores as if a lie. Outages never damage any appliance. As defined by international design standards that have existed even longer than all of us.


Edited by westom 7/16/2021 22:48
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