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: 02.07.2025 00:56
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
“ 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”
These are simplified answers to the original question, and does not change anything I wrote above.
Do you believe that it is right that one Federal judge can block a President's decisions?
At one ohm, the resistor has a maximum of 1 watt power.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
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.
Proba-3’s first artificial solar eclipse - European Space Agency
but I think this circuit , shows a few more pieces.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
A circuit breaker is similar, but is resettable.
Seahawks defenders want to "put the team on our back" - NBC Sports
A fuse is a non-resetable over current circuit protector.
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.
what exactly is a ‘surge’ protector?
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
Now when you have a certain ac resistance, then a current flows in a loop.
This is 'the assistant's answer'
Who has gotten cured from a stage 4 breast cancer? The oncologist told her she would never be cured.
but this device (an Inductor) … impedes the rapid changes in the current.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
He then asserts :
Knicks get Jay Wright clarity in their head coach search - New York Post
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
Because the load is inductive, the current lags the voltage.(by a bit).
Apple’s new iPadOS has given my iPad a new lease of life - Creative Bloq
At least they know the answer if they wanted it.
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?
Barnstars:
Gina Ortiz Jones, a Progressive, Is Elected San Antonio’s Mayor - The New York Times
The third is lightning and “how it gets conducted into a home.”
[old diagram got deleted by accident]
In schematic diagrams this is the symbol for a fuse:
Stock Market Today: Stocks Finish Higher; Downtrend in Oil Is Intact - TheStreet
There are three different concepts here that are getting confused.
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 photo is worth a thousand words.
Why do we exist, and why are we conscious?
These devices are installed between the “hot” and “neutral” and protective ground.
One is “what exactly is in a ‘surge protector’ ? ”
[image of Common-mode choke]
Yankees will have to find ninth-inning serenity in Luke Weaver’s absence - New York Post
This one hit behind the barn.
Here is a simplified AC power diagram.
the problem then depends on "how fast does the fuse operate?".
Appendix Cancer Has Quadrupled in Millennials - AOL.com
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
An AC voltage/ current source, and an ac inductive load.
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
Why mosquito season will have less bite this year in Southern California - Los Angeles Daily News
But… the neutral is now “floating” because of the 1 ohm resistance.
He then describes the function of a fuse.
It seems Mohan does not understand the difference between a comment and an Answer.
The First in 30 Years: Scientists Discover New Class of Antibiotics - SciTechDaily
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.
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.
For this case there are devices called Metal oxide varistors (MOV).
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
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.
First Sentence:
What is lightning?
2024–10–14 [Omar Gharbi Omar Gharbi ]
What does a fuse do?
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.
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
The MOV will conduct when the voltage exceeds 50% of line voltage.
This device then solves the entire problem.
He then describes Rainy Season and Lightning.
2024–10–16 [ OO OLAOYE OYEBODE ]
The bolt then partially travels down the line to your home.
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
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.
Upvotes:
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
so, what happens?
This is where the MOV conducts again, and dissipated the energy.
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
One
2024–10–10[John johnson John Johnson ]
Can the fuse protect the electronic devices from lightning instead of a surge protector.
(Dc diagram shown, AC is similar).
But it can get overloaded, and no longer works.
The other is “what does a “fuse” do?”
This is the picture of an electronic coil of wire wound around a core of magnetic material.
eight
Edit 2024–10.
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
This is where this question deviates from being a 'generic' question, and becomes more specific.
It also is a device that limits the change in current flow.
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
So, the voltage could go up to 500 volts, and the fuse will not open up.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
I post the exact comment here.
There are two important concepts here.
nine