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?
12.06.2025 02:13
This is the picture of an electronic coil of wire wound around a core of magnetic material.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
These devices are installed between the “hot” and “neutral” and protective ground.
"D Gukesh Was Blindly...": Magnus Carlsen's First Reaction After Loss To Indian GM - NDTV Sports
What does a fuse do?
But it can get overloaded, and no longer works.
It also is a device that limits the change in current flow.
Why am I so afraid that gun owners have set traps to kill me outside my house or my car?
Here is a simplified AC power diagram.
(Dc diagram shown, AC is similar).
At least they know the answer if they wanted it.
Scientists Stumble Upon The World’s Oldest Stomach Stone Fossil - The Daily Galaxy
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
The third is lightning and “how it gets conducted into a home.”
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.
What are 50 random facts about yourself?
First Sentence:
Barnstars:
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.
When was the first time you felt discriminated against because you were female?
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 ]
Upvotes:
Poll: Are You Happy with Your PS Plus Essential Games for June 2025? - Push Square
what exactly is a ‘surge’ protector?
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
European Mars orbiter spies crumbling crater 'soaked in layers of Martian history' (photo) - Space
This device then solves the entire problem.
Can the fuse protect the electronic devices from lightning instead of a surge protector.
So, the voltage could go up to 500 volts, and the fuse will not open up.
How do you handle your mother-in-law after you heard her talking badly about you in the next room?
He then describes the function of a fuse.
nine
These are simplified answers to the original question, and does not change anything I wrote above.
The S&P 500 closes at 6,000 as bulls aim for return to record territory - MarketWatch
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.
The MOV will conduct when the voltage exceeds 50% of line voltage.
At one ohm, the resistor has a maximum of 1 watt power.
[old diagram got deleted by accident]
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
A fuse is a non-resetable over current circuit protector.
2024–10–16 [ OO OLAOYE OYEBODE ]
Are there any penalties for bestiality in the USA and laws prohibiting it?
but I think this circuit , shows a few more pieces.
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
a photo is worth a thousand words.
‘Amazing Worlds of Science Fiction and Science Fact’ Review: An Education in Exoplanets - WSJ
There are three different concepts here that are getting confused.
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?".
Were knights’ lances practical weapons, or were they just for sports?
An AC voltage/ current source, and an ac inductive load.
This is where the MOV conducts again, and dissipated the energy.
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?
the problem then depends on "how fast does the fuse operate?".
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
but this device (an Inductor) … impedes the rapid changes in the current.
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
What is lightning?
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
One is “what exactly is in a ‘surge protector’ ? ”
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
But… the neutral is now “floating” because of the 1 ohm resistance.
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.
This one hit behind the barn.
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.
Now when you have a certain ac resistance, then a current flows in a loop.
eight
2024–10–10[John johnson John Johnson ]
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
I post the exact comment here.
One
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
There are two important concepts here.
He then asserts :
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
The other is “what does a “fuse” do?”
He then describes Rainy Season and Lightning.
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%).
It seems Mohan does not understand the difference between a comment and an Answer.
“ 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”
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.
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
This is 'the assistant's answer'
This is where this question deviates from being a 'generic' question, and becomes more specific.
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.
so, what happens?
Edit 2024–10.
Because the load is inductive, the current lags the voltage.(by a bit).
[image of Common-mode choke]
For this case there are devices called Metal oxide varistors (MOV).
In schematic diagrams this is the symbol for a fuse: