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: 23.06.2025 00:42
nine
Can the fuse protect the electronic devices from lightning instead of a surge protector.
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.
What is the future of AI in interior design?
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.
Marines in LA as ICE protests spread to more U.S. cities: In photos - Axios
what exactly is a ‘surge’ protector?
It seems Mohan does not understand the difference between a comment and an Answer.
A fuse is a non-resetable over current circuit protector.
Dave Chappelle and Mo Amer on Politics and Comedy, SNL Monologues - Variety
A circuit breaker is similar, but is resettable.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
Would you respect the US with a woman as president?
The bolt then partially travels down the line to your home.
“ 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”
2024–10–14 [Omar Gharbi Omar Gharbi ]
What is the cost of implementing synchronized traffic lights in a mid-sized city?
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
This is where the MOV conducts again, and dissipated the energy.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
—— indirects on kuorans, irl and idols
There are two important concepts here.
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 one hit behind the barn.
At least 32 Zotac RTX 5090 buyers at Micro Center find only backpacks inside the boxes - TechSpot
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.
[old diagram got deleted by accident]
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
But… the neutral is now “floating” because of the 1 ohm resistance.
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
I post the exact comment here.
How do you get the most out of red light therapy?
Because the load is inductive, the current lags the voltage.(by a bit).
An AC voltage/ current source, and an ac inductive load.
For this case there are devices called Metal oxide varistors (MOV).
Is there a way to remove tar from my lungs?
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
There are three different concepts here that are getting confused.
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
Is Russia now too weak to save the Assad dictatorship in Syria again?
At least they know the answer if they wanted it.
So, the voltage could go up to 500 volts, and the fuse will not open up.
These are simplified answers to the original question, and does not change anything I wrote above.
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.
First Sentence:
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
(Dc diagram shown, AC is similar).
The other is “what does a “fuse” do?”
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:
a photo is worth a thousand words.
This is the picture of an electronic coil of wire wound around a core of magnetic material.
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
eight
the problem then depends on "how fast does the fuse operate?".
2024–10–16 [ OO OLAOYE OYEBODE ]
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
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.
2024–10–10[John johnson John Johnson ]
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
[image of Common-mode choke]
But it can get overloaded, and no longer works.
One is “what exactly is in a ‘surge protector’ ? ”
Edit 2024–10.
It also is a device that limits the change in current flow.
This is 'the assistant's answer'
He then asserts :
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
These devices are installed between the “hot” and “neutral” and protective ground.
but I think this circuit , shows a few more pieces.
Here is a simplified AC power diagram.
The third is lightning and “how it gets conducted into a home.”
One
The MOV will conduct when the voltage exceeds 50% of line voltage.
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.
Now when you have a certain ac resistance, then a current flows in a loop.
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
At one ohm, the resistor has a maximum of 1 watt power.
This device then solves the entire problem.
but this device (an Inductor) … impedes the rapid changes in the current.
He then describes the function of a fuse.
so, what happens?
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
What does a fuse do?
Upvotes:
In schematic diagrams this is the symbol for a fuse:
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.