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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: 18.06.2025 00:20

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?

First Sentence:

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

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.

Why does my crush always looks at me in a sad way whenever I talk with other boys, and if he catch me staring on him then he go and flirt with other girls and then check if I am looking at him?

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

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

Upvotes:

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

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

nine

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[old diagram got deleted by accident]

so, what happens?

This one hit behind the barn.

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One

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

What does a fuse do?

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

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

2024–10–14 [Omar Gharbi Omar Gharbi ]

When writing a novel, how can a character be developed well, but QUICKLY?

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

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.

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

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

Barnstars:

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

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There are two important concepts here.

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

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This device then solves the entire problem.

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 photo where a lightning bolt took out a home's complete mains distribution box, and a lot of electronic gear as well.

Honestly! Do you people actually watch all that nonsense produced by the nitwit network television stations or do they just claim you do?

At least they know the answer if they wanted it.

But it can get overloaded, and no longer works.

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

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

There are three different concepts here that are getting confused.

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

Why do atheists not love a G-d that does not stop punishing them harder and harder in this world and the next until they surrender to Him?

what exactly is 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.

2024–10–10[John johnson John Johnson ]

What explanations do flat earthers have for the shape of our planet? If they do not have any, why should their opinions on this topic be considered credible?

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

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

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

Are there any more 'nun' jokes?

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

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

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

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Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".

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

He then describes the function of a fuse.

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

[image of Common-mode choke]

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.

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?”

2024–10–16 [ OO OLAOYE OYEBODE ]

This is 'the assistant's answer'

He then describes Rainy Season and Lightning.

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

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

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

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

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

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

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

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

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

Here is a simplified AC power diagram.

Edit 2024–10.

In schematic diagrams this is the symbol for a fuse:

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

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

a photo is worth a thousand words.

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

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

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

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

“ 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”

He then asserts :

What is lightning?

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

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

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.

I post the exact comment here.

(Dc diagram shown, AC is similar).

Because the load is inductive, the current lags the voltage.(by a bit).

A circuit breaker is similar, but is resettable.