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?

Here is a simplified AC power diagram.

One

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

Nvidia Stock: Forget AI Data Centers, Is This Market Nvidia's Next Big Growth Driver? - The Motley Fool

He then asserts :

He then describes the function of a fuse.

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

It is possible to remove a voice from a double voice audio so I can hear just the one voice?

This one hit behind the barn.

(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.

Does the U.S military really prosecute military staff for cheating on their spouse, or do they close one eye if the cheating does not involve other military personnel since adultery is fairly common? Adultery is illegal in U.S military

[image of Common-mode choke]

What does a fuse do?

But it can get overloaded, and no longer works.

Geologists Just Cracked Open a 500-Million-Year Mystery in the Grand Canyon — What They Found Is Rewriting Earth’s History - Indian Defence Review

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

First Sentence:

He then describes Rainy Season and Lightning.

Why is Luigi Mangjone being seen as courageous if he was too cowardly to look his victim in the eyes? Don't Hollywood heroes look their victims in the eyes when shooting/stabbing/choking them?

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

In schematic diagrams this is the symbol for a fuse:

a photo is worth a thousand words.

Scientists discover a 33-foot Jurassic giant, twice as big as its cousin - Earth.com

nine

“ 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”

The other is “what does a “fuse” do?”

How to watch Apple’s WWDC 2025 keynote - TechCrunch

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

[old diagram got deleted by accident]

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

How did you react when your doctor ordered a colonoscopy?

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

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

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

Which certification is most valuable in the IT field, and why?

Upvotes:

This is 'the assistant's answer'

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

Are judges being lenient on hard criminals?

At least they know the answer if they wanted it.

eight

2024–10–14 [Omar Gharbi Omar Gharbi ]

Padilla says FBI agent, Guard member escorted him to Noem's briefing before removal - Axios

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

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

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.

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

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.

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

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.

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

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

Barnstars:

2024–10–10[John johnson John Johnson ]

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

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

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

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

so, what happens?

A circuit breaker is similar, but is resettable.

Edit 2024–10.

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.

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

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.

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

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

What is lightning?

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

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

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

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?

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

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

This device then solves the entire problem.

There are two important concepts here.

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

I post the exact comment here.

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

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.

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

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

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.

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

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

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

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

what exactly is a ‘surge’ protector?

(Dc diagram shown, AC is similar).

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

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

2024–10–16 [ OO OLAOYE OYEBODE ]

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

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