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: 28.06.2025 01:26
First Sentence:
but this device (an Inductor) … impedes the rapid changes in the current.
This device then solves the entire problem.
Is there any concrete proof that LED face masks actually work?
the problem then depends on "how fast does the fuse operate?".
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
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.
Want to lower your cholesterol? Try a daily cup of this common bean - The Independent
[image of Common-mode choke]
One is “what exactly is in a ‘surge protector’ ? ”
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
For this case there are devices called Metal oxide varistors (MOV).
He then describes Rainy Season and Lightning.
[old diagram got deleted by accident]
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
“ 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”
The third is lightning and “how it gets conducted into a home.”
Galaxy Watch 8 series leak shows Samsung’s upcoming wearables from every angle - 9to5Google
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
What is lightning?
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
Call of Duty: Black Ops 6 now shows you microtransaction ads when you swap weapons - Eurogamer
but I think this circuit , shows a few more pieces.
There are two important concepts here.
I post the exact comment here.
Cocaine Sharks: The Disturbing Discovery That’s Shaking Marine Research - Indian Defence Review
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).
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.
These are the best new MacBook deals in June: options starting at $649 - 9to5Mac
2024–10–10[John johnson John Johnson ]
He then asserts :
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?
eight
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
What World Does Bitcoin Want To Build For Itself? - Defector
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
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.
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
What is the reason for writing X^2 as XX instead of X*X?
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
It also is a device that limits the change in current flow.
what exactly is a ‘surge’ protector?
Being fat is a trap - Hacker News
So, the voltage could go up to 500 volts, and the fuse will not open up.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
There are three different concepts here that are getting confused.
These are simplified answers to the original question, and does not change anything I wrote above.
The bolt then partially travels down the line to your home.
Edit 2024–10.
5 health issues that can occur due to Vitamin D deficiency - Times of India
Can the fuse protect the electronic devices from lightning instead of a surge protector.
This is where this question deviates from being a 'generic' question, and becomes more specific.
This is the picture of an electronic coil of wire wound around a core of magnetic material.
The other is “what does a “fuse” do?”
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
What does a fuse do?
nine
At least they know the answer if they wanted it.
Here is a simplified AC power diagram.
But… the neutral is now “floating” because of the 1 ohm resistance.
It seems Mohan does not understand the difference between a comment and an Answer.
The MOV will conduct when the voltage exceeds 50% of line voltage.
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
This is 'the assistant's answer'
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
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.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
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.
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
Upvotes:
Barnstars:
He then describes the function of a fuse.
Because the load is inductive, the current lags the voltage.(by a bit).
But it can get overloaded, and no longer works.
This one hit behind the barn.
At one ohm, the resistor has a maximum of 1 watt power.
A fuse is a non-resetable over current circuit protector.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
A circuit breaker is similar, but is resettable.
This is where the MOV conducts again, and dissipated the energy.
Now when you have a certain ac resistance, then a current flows in a loop.
2024–10–14 [Omar Gharbi Omar Gharbi ]
An AC voltage/ current source, and an ac inductive load.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
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.
(Dc diagram shown, AC is similar).
These devices are installed between the “hot” and “neutral” and protective ground.
In schematic diagrams this is the symbol for a fuse:
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.
a photo is worth a thousand words.
One
so, what happens?