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 10:44
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?
Can the fuse protect the electronic devices from lightning instead of a surge protector.
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.
FCC threat to revoke EchoStar spectrum licenses draws widespread backlash - Ars Technica
what exactly is a ‘surge’ protector?
In schematic diagrams this is the symbol for a fuse:
At least they know the answer if they wanted it.
Voluptates qui qui deleniti laborum et sed corrupti.
2024–10–14 [Omar Gharbi Omar Gharbi ]
The MOV will conduct when the voltage exceeds 50% of line voltage.
This is where this question deviates from being a 'generic' question, and becomes more specific.
But… the neutral is now “floating” because of the 1 ohm resistance.
(Dc diagram shown, AC is similar).
so, what happens?
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
First Sentence:
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
Oracle Stock Jumps On Earnings Beat, Upbeat Cloud Growth Forecast - Investor's Business Daily
[old diagram got deleted by accident]
This device then solves the entire problem.
What does a fuse do?
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
There are three different concepts here that are getting confused.
2024–10–10[John johnson John Johnson ]
Mets add Lovelady on MLB deal to bolster lefty 'pen depth - MLB.com
There are two important concepts here.
[image of Common-mode choke]
For this case there are devices called Metal oxide varistors (MOV).
Ryu Ga Gotoku Studio's Project Century Gets A Strange New Title - GameSpot
An AC voltage/ current source, and an ac inductive load.
A circuit breaker is similar, but is resettable.
eight
What are 10 interesting facts about you?
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
But it can get overloaded, and no longer works.
He then describes Rainy Season and Lightning.
What is the best way to get over your ex?
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.
Upvotes:
The third is lightning and “how it gets conducted into a home.”
Don't Like The New Xbox Game Hubs? Here's How To Turn Them Off - Pure Xbox
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 fuse is a device which protects the (circuit) against overload and short circuit.”
but I think this circuit , shows a few more pieces.
Why is the world male-dominated?
The other is “what does a “fuse” do?”
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
Now when you have a certain ac resistance, then a current flows in a loop.
Security Camera Footage Reveals How Dog Puts Away His Toys After Playing - AOL.com
This one hit behind the barn.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
Is it true that all men want a woman who looks like an Instagram “model”?
Here is a simplified AC power diagram.
It also is a device that limits the change in current flow.
So, the voltage could go up to 500 volts, and the fuse will not open up.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part 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?".
A fuse is a non-resetable over current circuit protector.
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
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.
a photo is worth a thousand words.
Edit 2024–10.
What is lightning?
These are simplified answers to the original question, and does not change anything I wrote above.
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
He then asserts :
nine
This is 'the assistant's 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”
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
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.
the problem then depends on "how fast does the fuse operate?".
These devices are installed between the “hot” and “neutral” and protective ground.
I post the exact comment here.
The bolt then partially travels down the line to your home.
Because the load is inductive, the current lags the voltage.(by a bit).
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.
This is the picture of an electronic coil of wire wound around a core of magnetic material.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
Barnstars:
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
One is “what exactly is in a ‘surge protector’ ? ”
This is where the MOV conducts again, and dissipated the energy.
At one ohm, the resistor has a maximum of 1 watt power.
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.
2024–10–16 [ OO OLAOYE OYEBODE ]
He then describes the function of a fuse.
but this device (an Inductor) … impedes the rapid changes in the current.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
It seems Mohan does not understand the difference between a comment and an Answer.
One
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
2024–10–11 [Victor Olarewsju Victor Olarewaju ]