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 07:30
what exactly is a ‘surge’ protector?
What does a fuse do?
so, what happens?
iFixit Says Switch 2 Is Probably Still Drift Prone - WIRED
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.
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
These devices are installed between the “hot” and “neutral” and protective ground.
Turning the Red Planet green? It's time to take terraforming Mars seriously, scientists say - Space
What is lightning?
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.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my 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”
A circuit breaker is similar, but is resettable.
Barnstars:
(Dc diagram shown, AC is similar).
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.
I post the exact comment here.
Being fat is a trap - Hacker News
He then describes Rainy Season and Lightning.
2024–10–16 [ OO OLAOYE OYEBODE ]
There are two important concepts here.
This Google experimental app lets you run powerful AI models without Wi-Fi - Android Police
First Sentence:
He then asserts :
but I think this circuit , shows a few more pieces.
King & Queen of the Ring tournament brackets revealed - Cageside Seats
There are three different concepts here that are getting confused.
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
At one ohm, the resistor has a maximum of 1 watt power.
Would the word literate carry the same meaning with public (common wealth) in 1900 vs today 2020?
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?
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
2024–10–10[John johnson John Johnson ]
US Food and Drug Administration Launches AI Platform to 'Modernize' Agency - Decrypt
Edit 2024–10.
These are simplified answers to the original question, and does not change anything I wrote above.
eight
What was the hottest inappropriate sex you ever had?
2024–10–14 [Omar Gharbi Omar Gharbi ]
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.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
Disney lays off hundreds of employees across film, TV and other units - CBS News
It seems Mohan does not understand the difference between a comment and an Answer.
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'
Six killed by Israeli gunfire near Gaza aid site, Hamas officials say - BBC
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
The MOV will conduct when the voltage exceeds 50% of line voltage.
For this case there are devices called Metal oxide varistors (MOV).
At least they know the answer if they wanted it.
An AC voltage/ current source, and an ac inductive load.
This is where the MOV conducts again, and dissipated the energy.
The bolt then partially travels down the line to your home.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
A fuse is a non-resetable over current circuit protector.
This device then solves the entire problem.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
So, the voltage could go up to 500 volts, and the fuse will not open up.
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.
One
This is where this question deviates from being a 'generic' question, and becomes more specific.
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.”
This is the picture of an electronic coil of wire wound around a core of magnetic material.
In schematic diagrams this is the symbol for a fuse:
but this device (an Inductor) … impedes the rapid changes in the current.
a photo is worth a thousand words.
the problem then depends on "how fast does the fuse operate?".
But… the neutral is now “floating” because of the 1 ohm resistance.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
Because the load is inductive, the current lags the voltage.(by a bit).
He then describes the function of a fuse.
nine
The third is lightning and “how it gets conducted into a home.”
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
[old diagram got deleted by accident]
Now when you have a certain ac resistance, then a current flows in a loop.
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
It also is a device that limits the change in current flow.
One is “what exactly is in a ‘surge protector’ ? ”
Here is a simplified AC power diagram.
Can the fuse protect the electronic devices from lightning instead of a surge protector.
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
Upvotes:
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
[image of Common-mode choke]
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
This one hit behind the barn.
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
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.
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.
The other is “what does a “fuse” do?”
But it can get overloaded, and no longer works.