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?
10.06.2025 00:37
A circuit breaker is similar, but is resettable.
This is where this question deviates from being a 'generic' question, and becomes more specific.
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
These are simplified answers to the original question, and does not change anything I wrote above.
He then describes Rainy Season and Lightning.
He then describes the function of a fuse.
This seed is rich in protein, magnesium, and helps grow muscle mass - Earth.com
At least they know the answer if they wanted it.
Upvotes:
eight
What did your best friend do that ended your friendship?
I post the exact comment here.
Can the fuse protect the electronic devices from lightning instead of a surge protector.
For this case there are devices called Metal oxide varistors (MOV).
This device then solves the entire problem.
so, what happens?
This is where the MOV conducts again, and dissipated the energy.
Global pandemic warning: Aspergillus deadly fungus mirrors HBO’s ‘The Last of Us’ - Times of India
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
What is lightning?
Do Flat Earthers exist today? If so, where do they live?
the problem then depends on "how fast does the fuse operate?".
In schematic diagrams this is the symbol for a fuse:
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.
How can we become the best humans? How can we trust each other?
but this device (an Inductor) … impedes the rapid changes in the current.
An AC voltage/ current source, and an ac inductive load.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
What Happens to Your Blood Pressure When You Drink Energy Drinks Every Day? - Verywell Health
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%).
Now when you have a certain ac resistance, then a current flows in a loop.
Why did the Soviet Jews hate the Soviet Union?
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
What does a fuse do?
Increased Toxicity Risk Identified For Children With ADHD, Autism - ScienceAlert
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
“ 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”
At one ohm, the resistor has a maximum of 1 watt power.
Jac Caglianone and a modern history of left handed sluggers - Royals Review
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
2024–10–16 [ OO OLAOYE OYEBODE ]
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
Taylor Swift Won Her Biggest Battle - The Ringer
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
So, the voltage could go up to 500 volts, and the fuse will not open up.
First Sentence:
Why do I sweat (mostly on face) when I eat usually spicy food?
[old diagram got deleted by accident]
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?
One is “what exactly is in a ‘surge protector’ ? ”
The MOV will conduct when the voltage exceeds 50% of line voltage.
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
One
A fuse is a non-resetable over current circuit protector.
The other is “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 exactly is a ‘surge’ protector?
(Dc diagram shown, AC is similar).
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
Because the load is inductive, the current lags the voltage.(by a bit).
[image of Common-mode choke]
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
There are three different concepts here that are getting confused.
The third is lightning and “how it gets conducted into a home.”
This is the picture of an electronic coil of wire wound around a core of magnetic material.
Barnstars:
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.
Here is a simplified AC power diagram.
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
It seems Mohan does not understand the difference between a comment and an Answer.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
He then asserts :
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
But it can get overloaded, and no longer works.
2024–10–10[John johnson John Johnson ]
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.
2024–10–14 [Omar Gharbi Omar Gharbi ]
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
This is 'the assistant's answer'
It also is a device that limits the change in current flow.
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.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
nine
There are two important concepts here.
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.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
Edit 2024–10.
but I think this circuit , shows a few more pieces.
But… the neutral is now “floating” because of the 1 ohm resistance.
a photo is worth a thousand words.
This one hit behind the barn.
These devices are installed between the “hot” and “neutral” and protective ground.
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.