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: 23.06.2025 01:44
A fuse is a non-resetable over current circuit protector.
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.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
Why does Africa have all mineral resources but she is suffering economically?
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
One
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
Agent-based computing is outgrowing the web as we know it - VentureBeat
An AC voltage/ current source, and an ac inductive load.
What is lightning?
2024–10–10[John johnson John Johnson ]
Scientists Solve 50-Year Mystery of Strange Zone Deep Inside Earth - SciTechDaily
The MOV will conduct when the voltage exceeds 50% of line voltage.
There are two important concepts here.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
A circuit breaker is similar, but is resettable.
(Dc diagram shown, AC is similar).
He then describes Rainy Season and Lightning.
HBO’s ‘Harry Potter’ Casts 9 More Roles, Including Draco Malfoy - The Hollywood Reporter
This is the picture of an electronic coil of wire wound around a core of magnetic material.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
First Sentence:
Fallout 76: Gone Fission Release Notes - Bethesda.net
what exactly is a ‘surge’ protector?
For this case there are devices called Metal oxide varistors (MOV).
Upvotes:
Newspaper headlines: 'A generation let down' and 'Israel claims control' - BBC
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
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.
This is where the MOV conducts again, and dissipated the energy.
Hypertension: New drug shows strong results in managing blood pressure - Medical News Today
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
The other is “what does a “fuse” do?”
At least they know the answer if they wanted it.
Journalism A Go For Belmont Stakes After Saratoga Work - Thoroughbred Daily News
[old diagram got deleted by accident]
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.
Why do I sweat so much at the gym?
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
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.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
Are there any more 'nun' jokes?
Barnstars:
So, the voltage could go up to 500 volts, and the fuse will not open up.
But it can get overloaded, and no longer works.
He then asserts :
It also is a device that limits the change in current flow.
This is 'the assistant's answer'
Person infectious with measles traveled through Sky Harbor, health officials say - ABC15 Arizona
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.
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
Here is a simplified AC power diagram.
What is the dirtiest city in India?
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
nine
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?
“ 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”
This is where this question deviates from being a 'generic' question, and becomes more specific.
Now when you have a certain ac resistance, then a current flows in a loop.
There are three different concepts here that are getting confused.
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
These devices are installed between the “hot” and “neutral” and protective ground.
so, what happens?
It seems Mohan does not understand the difference between a comment and an Answer.
At one ohm, the resistor has a maximum of 1 watt power.
the problem then depends on "how fast does the fuse operate?".
a photo is worth a thousand words.
Because the load is inductive, the current lags the voltage.(by a bit).
I post the exact comment here.
but this device (an Inductor) … impedes the rapid changes in the current.
This device then solves the entire problem.
One is “what exactly is in a ‘surge protector’ ? ”
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
But… the neutral is now “floating” because of the 1 ohm resistance.
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 a photo where a lightning bolt took out a home's complete mains distribution box, and a lot of electronic gear as well.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
eight
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
but I think this circuit , shows a few more pieces.
What does a fuse do?
These are simplified answers to the original question, and does not change anything I wrote above.
2024–10–16 [ OO OLAOYE OYEBODE ]
The bolt then partially travels down the line to your 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.
[image of Common-mode choke]
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
This one hit behind the barn.
Edit 2024–10.
He then describes the function of a fuse.
In schematic diagrams this is the symbol for a fuse:
2024–10–14 [Omar Gharbi Omar Gharbi ]
The third is lightning and “how it gets conducted into a home.”
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
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.