Logo

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: 17.06.2025 13:35

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?

[image of Common-mode choke]

At one ohm, the resistor has a maximum of 1 watt power.

“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”

Can you write a short story with a twist ending?

This is where this question deviates from being a 'generic' question, and becomes more specific.

but this device (an Inductor) … impedes the rapid changes in the current.

He then describes the function of a fuse.

Why are girls supposed to have a stereotypical "hourglass" body shape, and why if you dont have an "hourglass" body shape you get treated differently? It doesnt make any sense to me.

If the nominal power is 4,000 watts then the current at 230volts is 16 amps.

The other is “what does a “fuse” do?”

Edit 2024–10.

What does it mean when a guy says he doesn't want to ruin the friendship? Is he rejecting me or is there another explanation? Why would a guy choose not to risk the friendship if he has feelings for me?

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.

(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).

so, what happens?

How did you know you weren't the narc?

P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.

These are simplified answers to the original question, and does not change anything I wrote above.

I post the exact comment here.

Minecraft's "Vibrant Visuals" update finally has a release date - Eurogamer

2024–10–11 [Bobby Sanchez Bobby Sanchez ].

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.

He then describes Rainy Season and Lightning.

Why is there no evidence of a multiverse theory?

But… the neutral is now “floating” because of the 1 ohm resistance.

A fuse is a non-resetable over current circuit protector.

The bolt then partially travels down the line to your home.

Why do almost all the girls on Quora look beautiful?

There are two important concepts here.

The third is lightning and “how it gets conducted into a home.”

So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.

California schools are very liberal. Do you think California schools are teaching students to hate Republican views (views on: God, guns, prayer, secure borders, etc.)?

Now when you have a certain ac resistance, then a current flows in a loop.

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?".

What are the most shocking facts about the Bollywood industry?

Upvotes:

but I think this circuit , shows a few more pieces.

An AC voltage/ current source, and an ac inductive load.

Why is my ex trying to provoke an argument with me?

(Dc diagram shown, AC is similar).

And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.

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.

How do you have intercourse with a girl who can remember you for a long time?

2024–10–16 [ OO OLAOYE OYEBODE ]

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.

What is a partner in crime?

At least they know the answer if they wanted it.

[old diagram got deleted by accident]

This one hit behind the barn.

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

This device then solves the entire problem.

Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.

Here is a simplified AC power diagram.

eight

OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.

It seems Mohan does not understand the difference between a comment and an Answer.

It also is a device that limits the change in current flow.

a photo is worth a thousand words.

But it can get overloaded, and no longer works.

For this case there are devices called Metal oxide varistors (MOV).

2024–10–10[John johnson John Johnson ]

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?

First Sentence:

In schematic diagrams this is the symbol for a fuse:

“ A fuse is a device which protects the (circuit) against overload and short circuit.”

When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.

the problem then depends on "how fast does the fuse operate?".

There are three different concepts here that are getting confused.

Can the fuse protect the electronic devices from lightning instead of a surge protector.

This is 'the assistant's answer'

The MOV will conduct when the voltage exceeds 50% of line voltage.

2024–10–14 [Omar Gharbi Omar Gharbi ]

This is where the MOV conducts again, and dissipated the energy.

But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).

What does a fuse do?

What is lightning?

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 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.

nine

It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.

Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.

Barnstars:

so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.

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.

“ 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”

what exactly is a ‘surge’ protector?

He then asserts :

This is the picture of an electronic coil of wire wound around a core of magnetic material.

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.

Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.

One is “what exactly is in a ‘surge protector’ ? ”

These devices are installed between the “hot” and “neutral” and protective ground.

So, the voltage could go up to 500 volts, and the fuse will not open up.

A circuit breaker is similar, but is resettable.

One