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: 19.06.2025 07:05
2024–10–16 [ OO OLAOYE OYEBODE ]
A fuse is a non-resetable over current circuit protector.
The other is “what does a “fuse” do?”
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.
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
Is it considered rude to comment on someone's weight? Is it simply stating a fact?
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.
What does a fuse do?
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.
What is your review of working in EY?
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.
Edit 2024–10.
There are three different concepts here that are getting confused.
Why is Nickelback known to be a bad band?
He then describes Rainy Season and Lightning.
This is where the MOV conducts again, and dissipated the energy.
One
Who are some good social skills therapists in Pompano Beach, Florida?
2024–10–14 [Omar Gharbi Omar Gharbi ]
Because the load is inductive, the current lags the voltage.(by a bit).
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
Apple’s Music app in iOS 26 gains my favorite feature from the Mac - 9to5Mac
So, the voltage could go up to 500 volts, and the fuse will not open up.
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?
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
Which country do you recommend for me to live in, England, the USA, Italy, Spanish, or Austria?
This one hit behind the barn.
a photo is worth a thousand words.
A circuit breaker is similar, but is resettable.
What do you think of Tesla's Model Y coming in ninth among electric cars sales in Europe?
Here is a simplified AC power diagram.
One is “what exactly is in a ‘surge protector’ ? ”
The bolt then partially travels down the line to your home.
What do you think of the Quora group "It's Ok to Be White" for people who are proud of being white?
But… the neutral is now “floating” because of the 1 ohm resistance.
This is where this question deviates from being a 'generic' question, and becomes more specific.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
I post the exact comment here.
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 device then solves the entire problem.
Why did Obito, a supposed "bad person," do good things for Kakashi?
eight
It seems Mohan does not understand the difference between a comment and an Answer.
These devices are installed between the “hot” and “neutral” and protective ground.
Have you experimented with bestiality?
Can the fuse protect the electronic devices from lightning instead of a surge protector.
This is the picture of an electronic coil of wire wound around a core of magnetic material.
what exactly is a ‘surge’ protector?
What are some cool confidence hacks?
For this case there are devices called Metal oxide varistors (MOV).
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.
Barnstars:
What are some reasons why some men choose to live alone instead of getting married?
2024–10–10[John johnson John Johnson ]
[old diagram got deleted by accident]
At least they know the answer if they wanted it.
nine
The third is lightning and “how it gets conducted into a home.”
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
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.
[image of Common-mode choke]
In schematic diagrams this is the symbol for a fuse:
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
(Dc diagram shown, AC is similar).
But it can get overloaded, and no longer works.
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
What is lightning?
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
These are simplified answers to the original question, and does not change anything I wrote above.
First Sentence:
but I think this circuit , shows a few more pieces.
It also is a device that limits the change in current flow.
An AC voltage/ current source, and an ac inductive load.
This is 'the assistant's answer'
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).
Now when you have a certain ac resistance, then a current flows in a loop.
He then asserts :
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.
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
He then describes the function of a fuse.
but this device (an Inductor) … impedes the rapid changes in the current.
The MOV will conduct when the voltage exceeds 50% of line voltage.
“ 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”
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
Upvotes:
There are two important concepts here.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
the problem then depends on "how fast does the fuse operate?".
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).