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: 03.07.2025 00:30
A circuit breaker is similar, but is resettable.
This is the picture of an electronic coil of wire wound around a core of magnetic material.
2024–10–14 [Omar Gharbi Omar Gharbi ]
Why do liberals think it is okay to steal votes while the rest of us obey the law(s)?
The third is lightning and “how it gets conducted into a home.”
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
Now when you have a certain ac resistance, then a current flows in a loop.
Can the fuse protect the electronic devices from lightning instead of a surge protector.
These are simplified answers to the original question, and does not change anything I wrote above.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
June's full 'Strawberry Moon' illuminates the night sky next week: Here's how to see it - Space
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.
So, the voltage could go up to 500 volts, and the fuse will not open up.
One
4 things everyone must know about vitamin D - Times of India
Because the load is inductive, the current lags the voltage.(by a bit).
Here is a simplified AC power diagram.
He then asserts :
You Can Own This Ultra-Rare Italian Viper - Motor1.com
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
He then describes the function of a fuse.
An AC voltage/ current source, and an ac inductive load.
What is your craziest/worst Halloween story?
Upvotes:
One is “what exactly is in a ‘surge protector’ ? ”
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?
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.
He then describes Rainy Season and Lightning.
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.
But it can get overloaded, and no longer works.
At least they know the answer if they wanted it.
FanDuel announces 50-cent fee on all bets in Illinois - Awful Announcing
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
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.
But… the neutral is now “floating” because of the 1 ohm resistance.
What are your thoughts on the dating app "scam"?
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
There are three different concepts here that are getting confused.
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
Water Discovered Around a Young, Sun-Like Star For First Time - ScienceAlert
2024–10–10[John johnson John Johnson ]
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
(Dc diagram shown, AC is similar).
Thousands of Norwegians mistakenly told they won millions in lottery - CBS News
2024–10–16 [ OO OLAOYE OYEBODE ]
eight
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.
Best Pokémon to Vote for in August 2025 Community Day (PvP Analysis) - Pokémon GO Hub
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
What is lightning?
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
nine
In schematic diagrams this is the symbol for a fuse:
There are two important concepts here.
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.
These devices are installed between the “hot” and “neutral” and protective ground.
This device then solves the entire problem.
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
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.
but I think this circuit , shows a few more pieces.
This one hit behind the barn.
This is 'the assistant's answer'
The MOV will conduct when the voltage exceeds 50% of line voltage.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
but this device (an Inductor) … impedes the rapid changes in the current.
so, what happens?
the problem then depends on "how fast does the fuse operate?".
Barnstars:
It seems Mohan does not understand the difference between a comment and an Answer.
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
“ 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”
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
For this case there are devices called Metal oxide varistors (MOV).
The bolt then partially travels down the line to your home.
The other is “what does a “fuse” do?”
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
At one ohm, the resistor has a maximum of 1 watt power.
First Sentence:
What does a fuse do?
This is where the MOV conducts again, and dissipated the energy.
[image of Common-mode choke]
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
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.”
It also is a device that limits the change in current flow.
[old diagram got deleted by accident]
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
I post the exact comment here.
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
Edit 2024–10.
a photo is worth a thousand words.
This is where this question deviates from being a 'generic' question, and becomes more specific.
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.
what exactly is a ‘surge’ protector?