What exactly is the difference between a surge protector and a fuse? Can a fuse protect the electronic devices from lightning instead of surge protector?
Last Updated: 02.07.2025 23:45
Barnstars:
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
But… the neutral is now “floating” because of the 1 ohm resistance.
It also is a device that limits the change in current flow.
But it can get overloaded, and no longer works.
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
Mundfish Reveals The Cube, An MMORPG Shooter Set In The Atomic Heart Universe - Game Informer
What is lightning?
These devices are installed between the “hot” and “neutral” and protective ground.
This one hit behind the barn.
You Can Own This Ultra-Rare Italian Viper - Motor1.com
This is an electronic circuit designed to clamp voltages so that the Voltage Potential that appears at the outlet is never going to exceed the nominal value.
Edit 2024–10.
2024–09–27 [ Mohan Rajaratnam Mohan Rajaratnam ] . Thinks you can get free electricity from nothing : Mohan Rajaratnam's answer to Is it possible to generate free electricity at home using a magnet or other low-cost methods? If so, how does it work?
Minima tempora consequatur voluptas sequi aspernatur corporis.
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
This is where this question deviates from being a 'generic' question, and becomes more specific.
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
The FCC is cracking down on EchoStar’s deployment of 5G. - The Verge
This is where the MOV conducts again, and dissipated the energy.
eight
At least they know the answer if they wanted it.
Trump travel ban rattles immigrant communities across U.S. - The Washington Post
There is no harm in having the surge suppressor along with the fuse in the circuit. The fuse will not open up until the current melts the link. This will take time, and in the interim, that jolt will get transmitted into the power supplies.
The MOV will conduct when the voltage exceeds 50% of line voltage.
One is “what exactly is in a ‘surge protector’ ? ”
FDA expands approval of Moderna's RSV vaccine to some adults under age 60 - ABC News
So, the voltage could go up to 500 volts, and the fuse will not open up.
but I think this circuit , shows a few more pieces.
There are three different concepts here that are getting confused.
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
2024–10–10[John johnson John Johnson ]
“ A surge suppressor is the one which is connected at the input supply so that when there is a sudden change voltage it bypasses thereby protecting the (circuit) and electronic components”
Nintendo Switch update 20.1.1 out now, patch notes - Nintendo Everything
At one ohm, the resistor has a maximum of 1 watt power.
so, what happens?
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
Federal judge clears way for NYC broker fee ban to begin - Gothamist
One
At the secondary, it is 1000 times less.)turns ratio). If it gets hit with a 100,000 volt bolt of lightning then the voltage arrestors conduct and clamp the voltage down to line voltage, ( but a small amount leaks down the line). This is the problem.
(Dc diagram shown, AC is similar).
Yes, That "Materialists" Limb-Lengthening Procedure Is Real - Popsugar
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
These are simplified answers to the original question, and does not change anything I wrote above.
2024–10–16 [ OO OLAOYE OYEBODE ]
He then describes Rainy Season and Lightning.
Now when you have a certain ac resistance, then a current flows in a loop.
2024–10–14 [Omar Gharbi Omar Gharbi ]
Trump speech prompts concerns about politicization of military - NBC News
a photo is worth a thousand words.
An AC voltage/ current source, and an ac inductive load.
Can the fuse protect the electronic devices from lightning instead of a surge protector.
Quae illo minus voluptatum fugiat ea quaerat qui.
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
This device then solves the entire problem.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
This is the picture of an electronic coil of wire wound around a core of magnetic material.
The bolt then partially travels down the line to your home.
A fuse is a non-resetable over current circuit protector.
Once the voltage goes over 0.0650 volts, then this fact can be used to amplify the difference, and turn the circuit breaker off , furthur down the line. Essentially that is what a RCD/GFCI does, it compares the incoming current, to the outgoing current, and if the difference between the two currents is over 5mA, then it trips the circuit breaker.
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
[image of Common-mode choke]
I post the exact comment here.
The third is lightning and “how it gets conducted into a home.”
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
First Sentence:
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
This is 'the assistant's answer'
Lightning arrestor is a spark-gap device, and can be installed anywhere. What is important, is that the wire is thick enough to withstand the lightning bolt and conduct the energy away from the building.
He then describes the function of a fuse.
For this case there are devices called Metal oxide varistors (MOV).
A circuit breaker is similar, but is resettable.
[old diagram got deleted by accident]
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
Upvotes:
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
The other is “what does a “fuse” do?”
what exactly is a ‘surge’ protector?
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
Here is a simplified AC power diagram.
It seems Mohan does not understand the difference between a comment and an Answer.
This is a photo where a lightning bolt took out a home's complete mains distribution box, and a lot of electronic gear as well.
There are two important concepts here.
but this device (an Inductor) … impedes the rapid changes in the current.
nine
the problem then depends on "how fast does the fuse operate?".
What does a fuse do?
In schematic diagrams this is the symbol for a fuse:
This is a high voltage low current spike that comes down the line because of the power poles being struck, and the voltage suppressors activating on the primary side of the transformer.
Because the load is inductive, the current lags the voltage.(by a bit).
He then asserts :