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?
11.06.2025 13:04
Barnstars:
This is where the MOV conducts again, and dissipated the energy.
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
the problem then depends on "how fast does the fuse operate?".
This device then solves the entire problem.
What would you do if you were lost at sea in the Florida Keys?
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
what exactly is a ‘surge’ protector?
A circuit breaker is similar, but is resettable.
Indiana Pacers assistant Lloyd Pierce taking lessons for next opportunity as head coach - Andscape
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.
These are simplified answers to the original question, and does not change anything I wrote above.
I post the exact comment here.
Oilers-Panthers tale of the tape: Who has the edge in Cup Final rematch? - theScore.com
It also is a device that limits the change in current flow.
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.
Meta in Talks for Scale AI Investment That Could Top $10 Billion - Bloomberg
2024–10–16 [ OO OLAOYE OYEBODE ]
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 bolt then partially travels down the line to your home.
This is 'the assistant's answer'
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
Clint Eastwood Shades Era of Remakes: Do Something New or Stay at Home - Variety
Because the load is inductive, the current lags the voltage.(by a bit).
eight
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.
I feel like my boyfriend doesn't love me. Why?
The third is lightning and “how it gets conducted into a home.”
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.
[image of Common-mode choke]
Steelers quickly settle any Aaron Rodgers jersey number mystery after signing - New York Post
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.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
Why am I sweating so much at night even though my room is really cold?
At one ohm, the resistor has a maximum of 1 watt power.
[old diagram got deleted by accident]
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
One
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.
This is where this question deviates from being a 'generic' question, and becomes more specific.
HBO’s ‘Harry Potter’ Casts 9 More Roles, Including Draco Malfoy - The Hollywood Reporter
But it can get overloaded, and no longer works.
a photo is worth a thousand words.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
In schematic diagrams this is the symbol for a fuse:
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
Edit 2024–10.
Download the new iOS 26 wallpapers now - 9to5Mac
He then describes Rainy Season and Lightning.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
At least they know the answer if they wanted it.
There are three different concepts here that are getting confused.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
but this device (an Inductor) … impedes the rapid changes in the current.
Here is a simplified AC power diagram.
An AC voltage/ current source, and an ac inductive load.
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.
First Sentence:
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
One is “what exactly is in a ‘surge protector’ ? ”
He then describes the function of a fuse.
What is lightning?
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.
So, the voltage could go up to 500 volts, and the fuse will not open up.
Upvotes:
“ 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”
This is the picture of an electronic coil of wire wound around a core of magnetic material.
2024–10–10[John johnson John Johnson ]
It seems Mohan does not understand the difference between a comment and an Answer.
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
But… the neutral is now “floating” because of the 1 ohm resistance.
2024–10–14 [Omar Gharbi Omar Gharbi ]
For this case there are devices called Metal oxide varistors (MOV).
A fuse is a non-resetable over current circuit protector.
This one hit behind the barn.
but I think this circuit , shows a few more pieces.
Can the fuse protect the electronic devices from lightning instead of a surge protector.
(Dc diagram shown, AC is similar).
The other is “what does a “fuse” do?”
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
The MOV will conduct when the voltage exceeds 50% of line voltage.
What does a fuse do?
Now when you have a certain ac resistance, then a current flows in a loop.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
There are two important concepts here.
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
so, what happens?
nine
He then asserts :