If bread is wheat bread, then it can be white bread colored with molasses. No Federal law says what the expression "surge protector" means. Many even have completely different definitions of a surge. Some call a surge only a few volts increase or decrease. Is a surge a voltage increase or a current increase? Some say a surge is current going from 0 amps to 1 amp in light bulb. Even USB ports have surge protection that has nothing to do with voltage. USB surge protection is about too many milliamps.so how can they sell this with a logo on the front saying "surge protector"
westom said:A protector adjacent to appliances only claims to protect from a type of surge that should be made irrelevant by circuits already inside electronics.
Any facility that cannot have damage will not do that. As I said, protection inside appliances is superior. And it does not use MOVs or other expensive items to do so.This has left me in a bit of dilemma as i did plan on putting MOV's inside some of our mains sockets in the house because i was under the impression this would
1.protect my equipment
2. very cheap
3. easy to fit
A building must have both a safety ground and earth ground. The concept of ground is often confused by subjective reasoning.One is indeed "Earth" and is for surges only. The other is a reference.
Adding a MOV to a device that has no ground connection will help. Stopping them is more effective if done at the source. e.g. plasma cutter.
A perfect example of conclusions based in subjective reasoning and wild speculation.
View the numbers. A fuse is rated for maybe 250 volts. How does that blown fuse stop something rated at thousands of volts? It doesn't. The blown fuse remains conductive - as it specification numbers state.
More numbers. A fuse takes milliseconds or longer to blow. Surges are done in microseconds. *Easily* 300 consecutive surges could pass through a fuse before it even thinks about blowing. Where is the protection? I can only exist when subjective reasoning exists by ignoring numbers.
A fuse only disconnects power AFTER surge damage has occurred. So that fire does not kill humans. Known when one first learns specification numbers. And if one ignores subjective claims based only in speculation.
Exactly what my post said. You are correct. A fuse exists so that a grossly undersized MOV does not smoke and cause a house fire. But all fuses have a voltage rating. Don't take my word for it. Read numbers on each fuse.It's current that blows a fuse. Not voltage. .
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