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: 26.06.2025 11:31
But… the neutral is now “floating” because of the 1 ohm resistance.
[old diagram got deleted by accident]
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.
2024–10–14 [Omar Gharbi Omar Gharbi ]
The bolt then partially travels down the line to your home.
Why Stocks Are up and Oil Is Down As the US and Iran Trade Strikes - Business Insider
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
2024–10–10[John johnson John Johnson ]
Upvotes:
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.
One is “what exactly is in a ‘surge protector’ ? ”
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
nine
At one ohm, the resistor has a maximum of 1 watt power.
How is it not psychopathic to use someone for sex, even if they agree?
I post the exact comment here.
He then describes Rainy Season and Lightning.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
He then describes the function of a fuse.
This one hit behind the barn.
but I think this circuit , shows a few more pieces.
Gina Ortiz Jones, a Progressive, Is Elected San Antonio’s Mayor - The New York Times
This is the picture of an electronic coil of wire wound around a core of magnetic material.
eight
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.
Should you track your blood sugar with a continuous glucose monitor? - NPR
A fuse is a non-resetable over current circuit protector.
a photo is worth a thousand words.
But it can get overloaded, and no longer works.
Candace Cameron Bure, 49, Flaunts Ultra-Toned Body in Bikini - AOL.com
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
One
In schematic diagrams this is the symbol for a fuse:
What is it like to use a Fleshlight?
This is where this question deviates from being a 'generic' question, and becomes more specific.
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
These devices are installed between the “hot” and “neutral” and protective ground.
Why do some people dislike Gilmore girls?
A circuit breaker is similar, but is resettable.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
This is 'the assistant's answer'
What's your favorite stupid joke?
First Sentence:
An AC voltage/ current source, and an ac inductive load.
So, the voltage could go up to 500 volts, and the fuse will not open up.
Tyrese Haliburton reveals he has ‘24/7’ group chat with Cailtin Clark - New York Post
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
[image of Common-mode choke]
TSMC Sees Limited Tariff Impact on AI Strength - WSJ
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
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.
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
What is your twin flame story?
Can the fuse protect the electronic devices from lightning instead of a surge protector.
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?
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
At least they know the answer if they wanted it.
2024–10–16 [ OO OLAOYE OYEBODE ]
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.
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.
“ 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.
These are simplified answers to the original question, and does not change anything I wrote above.
This is where the MOV conducts again, and dissipated the energy.
What does a fuse do?
He then asserts :
What is lightning?
It seems Mohan does not understand the difference between a comment and an Answer.
so, what happens?
The third is lightning and “how it gets conducted into a home.”
Now when you have a certain ac resistance, then a current flows in a loop.
(Dc diagram shown, AC is similar).
Because the load is inductive, the current lags the voltage.(by a bit).
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.
For this case there are devices called Metal oxide varistors (MOV).
Barnstars:
the problem then depends on "how fast does the fuse operate?".
Here is a simplified AC power diagram.
Edit 2024–10.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
It also is a device that limits the change in current flow.
There are two important concepts here.
but this device (an Inductor) … impedes the rapid changes in the current.
what exactly is a ‘surge’ protector?
OK, this is Mohan Rajaratnam’s definition 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.
The other is “what does a “fuse” do?”
This device then solves the entire problem.
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.
The MOV will conduct when the voltage exceeds 50% of line voltage.