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: 28.06.2025 01:14
This is where this question deviates from being a 'generic' question, and becomes more specific.
There are three different concepts here that are getting confused.
Barnstars:
A circuit breaker is similar, but is resettable.
Now when you have a certain ac resistance, then a current flows in a loop.
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
Vernon Reid on Why Sly and the Family Stone Were the Greatest American Band - Rolling Stone
One
a photo is worth a thousand words.
nine
Report: Broncos are signing running back J.K. Dobbins to a one-year deal - Mile High Report
At least they know the answer if they wanted it.
He then describes the function of a fuse.
2024–10–10[John johnson John Johnson ]
What Happened at Pitchfork’s Zine Launch With Turnstile - Pitchfork
He then asserts :
the problem then depends on "how fast does the fuse operate?".
[image of Common-mode choke]
2024–10–16 [ OO OLAOYE OYEBODE ]
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
The MOV will conduct when the voltage exceeds 50% of line voltage.
These are simplified answers to the original question, and does not change anything I wrote above.
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
Team of the Matchday: Tani carries Minnesota, Joveljić sparks Sporting KC - MLSsoccer.com
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
(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.
Missouri governor signs Chiefs, Royals stadium bill - NBC Sports
What does a fuse do?
what exactly is a ‘surge’ protector?
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
He then describes Rainy Season and Lightning.
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.
The other is “what does a “fuse” do?”
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
One is “what exactly is in a ‘surge protector’ ? ”
It also is a device that limits the change in current flow.
11 confirmed dead after flooding, identities of three victims released - WOAI
This is where the MOV conducts again, and dissipated the energy.
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.
First Day of Roots Picnic Was an "Absolute Disaster," Fans Say - Philadelphia Magazine
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.
An AC voltage/ current source, and an ac inductive load.
A fuse is a non-resetable over current circuit protector.
What movies and TV shows portray realistic beauty standards?
First Sentence:
Edit 2024–10.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
Trevor Penning: The things I do well fit better at guard - NBC Sports
“ 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”
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
Why do you think Islam oppresses women when Christianity clearly does it more?
This device then solves the entire problem.
but this device (an Inductor) … impedes the rapid changes in the current.
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
Upvotes:
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.
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.
eight
So, the voltage could go up to 500 volts, and the fuse will not open up.
There are two important concepts here.
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
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.
Here is a simplified AC power diagram.
I post the exact comment here.
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.
This one hit behind the barn.
This is 'the assistant's answer'
But… the neutral is now “floating” because of the 1 ohm resistance.
[old diagram got deleted by accident]
It seems Mohan does not understand the difference between a comment and an Answer.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
These devices are installed between the “hot” and “neutral” and protective ground.
In schematic diagrams this is the symbol for a fuse:
For this case there are devices called Metal oxide varistors (MOV).
What is lightning?
But it can get overloaded, and no longer works.
The third is lightning and “how it gets conducted into a home.”
At one ohm, the resistor has a maximum of 1 watt power.
Can the fuse protect the electronic devices from lightning instead of a surge protector.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
so, what happens?
but I think this circuit , shows a few more pieces.
2024–10–14 [Omar Gharbi Omar Gharbi ]
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
This is the picture of an electronic coil of wire wound around a core of magnetic material.
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?
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
(Dc diagram shown, AC is similar).
Because the load is inductive, the current lags the voltage.(by a bit).
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
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.