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 19:37
What does a fuse do?
These are simplified answers to the original question, and does not change anything I wrote above.
Upvotes:
The Strait of Hormuz is a vital route for oil. Closing it could backfire on Iran - AP News
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
In schematic diagrams this is the symbol for a fuse:
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
Elden Ring Nightreign haters: Bloodborne is right there - Polygon
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
Barnstars:
It also is a device that limits the change in current flow.
What are some prime examples of gibberish from the bible?
There are two important concepts here.
“ 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”
Now when you have a certain ac resistance, then a current flows in a loop.
The bolt then partially travels down the line to your home.
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
a photo is worth a thousand words.
Spigen just released the Apple Watch charger stand I’ve always wanted - 9to5Mac
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
2024–10–10[John johnson John Johnson ]
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.
United Airlines Flight Attendants Lose Legal Battle Over ‘Reprehensible’ Sickness Policy - PYOK
One is “what exactly is in a ‘surge protector’ ? ”
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.
An AC voltage/ current source, and an ac inductive load.
Newspaper headlines: 'A generation let down' and 'Israel claims control' - BBC
At one ohm, the resistor has a maximum of 1 watt power.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
This device then solves the entire problem.
Why does Boko Haram attack its own Muslims?
nine
This is 'the assistant's answer'
The other is “what does a “fuse” do?”
What is the dirtiest thing you have allowed your husband to do?
One
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
There are three different concepts here that are getting confused.
but this device (an Inductor) … impedes the rapid changes in the current.
At least they know the answer if they wanted it.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
NJ electric bills are about to jump 20% — who's to blame and what can you do? - Gothamist
This one hit behind the barn.
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
But it can get overloaded, and no longer works.
Why do some people enjoy being dominated?
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
First Sentence:
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?
Breast transplanted to replace cancerous one in 'world first' operation - BBC
A fuse is a non-resetable over current circuit protector.
It seems Mohan does not understand the difference between a comment and an Answer.
This is the picture of an electronic coil of wire wound around a core of magnetic material.
Ask Ethan: What would the Universe be like without dark matter? - Big Think
So, the voltage could go up to 500 volts, and the fuse will not open up.
What is lightning?
He then describes Rainy Season and Lightning.
so, what happens?
eight
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.
2024–10–14 [Omar Gharbi Omar Gharbi ]
what exactly is a ‘surge’ protector?
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
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.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
Edit 2024–10.
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
the problem then depends on "how fast does the fuse operate?".
(Dc diagram shown, AC is similar).
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
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.
but I think this circuit , shows a few more pieces.
But… the neutral is now “floating” because of the 1 ohm resistance.
The MOV will conduct when the voltage exceeds 50% of line voltage.
[old diagram got deleted by accident]
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
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.
Because the load is inductive, the current lags the voltage.(by a bit).
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.
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.
Can the fuse protect the electronic devices from lightning instead of a surge protector.
This is where this question deviates from being a 'generic' question, and becomes more specific.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
This is where the MOV conducts again, and dissipated the energy.
2024–10–16 [ OO OLAOYE OYEBODE ]
[image of Common-mode choke]
He then asserts :
I post the exact comment here.
Here is a simplified AC power diagram.
These devices are installed between the “hot” and “neutral” and protective ground.
The third is lightning and “how it gets conducted into a home.”