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?
12.06.2025 02:41
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.
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
One is “what exactly is in a ‘surge protector’ ? ”
Tesla Stock Is Falling on a Downgrade. The Musk-Trump Feud Isn’t Helping. - Barron's
This is the picture of an electronic coil of wire wound around a core of magnetic material.
Upvotes:
These are simplified answers to the original question, and does not change anything I wrote above.
Best Buy CEO raises red flag about startling customer behavior - TheStreet
Barnstars:
But it can get overloaded, and no longer works.
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
Do humans know everything they need to know?
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.
Can the fuse protect the electronic devices from lightning instead of a surge protector.
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
Would you let your partner cheat on you every now and again?
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.
2024–10–14 [Omar Gharbi Omar Gharbi ]
but this device (an Inductor) … impedes the rapid changes in the current.
Hegseth moves to rename Navy ship honoring gay rights icon Harvey Milk - The Washington Post
There are two important concepts here.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
At least they know the answer if they wanted it.
In schematic diagrams this is the symbol for a fuse:
The MOV will conduct when the voltage exceeds 50% of line voltage.
Jac Caglianone and a modern history of left handed sluggers - Royals Review
A fuse is a non-resetable over current circuit protector.
This is 'the assistant's answer'
An AC voltage/ current source, and an ac inductive load.
First Day of Roots Picnic Was an "Absolute Disaster," Fans Say - Philadelphia Magazine
The other is “what does a “fuse” do?”
There are three different concepts here that are getting confused.
At one ohm, the resistor has a maximum of 1 watt power.
Log in to your Samsung account by the end of next month or forever hold your peace - Android Police
What does a fuse do?
so, what happens?
eight
What do you think of Obito Uchiha?
Because the load is inductive, the current lags the voltage.(by a bit).
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
Now when you have a certain ac resistance, then a current flows in a loop.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
One
what exactly is a ‘surge’ protector?
“ 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”
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
It also is a device that limits the change in current flow.
I post the exact comment here.
Edit 2024–10.
But… the neutral is now “floating” because of the 1 ohm resistance.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
Here is a simplified AC power diagram.
He then describes the function of a fuse.
This device then solves the entire problem.
2024–10–10[John johnson John Johnson ]
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
nine
[image of Common-mode choke]
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
The third is lightning and “how it gets conducted into a home.”
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?
the problem then depends on "how fast does the fuse operate?".
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.
The bolt then partially travels down the line to your home.
This one hit behind the barn.
First Sentence:
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
He then describes Rainy Season and Lightning.
What is lightning?
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.
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.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
[old diagram got deleted by accident]
So, the voltage could go up to 500 volts, and the fuse will not open up.
but I think this circuit , shows a few more pieces.
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.
(Dc diagram shown, AC is similar).
A circuit breaker is similar, but is resettable.
This is where the MOV conducts again, and dissipated the energy.
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
He then asserts :
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.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
It seems Mohan does not understand the difference between a comment and an Answer.
This is where this question deviates from being a 'generic' question, and becomes more specific.
These devices are installed between the “hot” and “neutral” and protective ground.
For this case there are devices called Metal oxide varistors (MOV).
a photo is worth a thousand words.