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?

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

What does a fuse do?

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

Dakota Johnson shows Chris Martin what he's missing post-breakup in completely sheer ensemble - Page Six

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

There are two important concepts here.

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

First American Spacewalk 60 Years Ago Today - The Weather Channel

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

I post the exact comment here.

Have you ever had a scary dream about a loved one or friend soon after their death?

There are three different concepts here that are getting confused.

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

a photo is worth a thousand words.

Bank of America predicts major housing market changes are coming soon - TheStreet

The other is “what does a “fuse” do?”

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

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

What do you think will be the biggest factor in determining whether Daniel Penny was justified in believing that Jordan Neely had posed a deadly threat in the manslaughter trial?

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

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

A circuit breaker is similar, but is resettable.

Can you summarize season 1 of "The Acolyte"?

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

He then asserts :

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

CVS to shutter 5 pharmacies in New York amid closure of 271 stores nationwide - New York Post

what exactly is a ‘surge’ protector?

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

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

What factors may contribute to intelligent individuals identifying as Republican rather than Democrat in the United States today?

This device then solves the entire problem.

2024–10–14 [Omar Gharbi Omar Gharbi ]

(Dc diagram shown, AC is similar).

Lucas: The Response - University of North Carolina Athletics - University of North Carolina Athletics

so, what happens?

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

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

Manufacturing PMI® at 48.5%; May 2025 Manufacturing ISM® Report On Business® - PR Newswire

He then describes the function of a fuse.

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

This one hit behind the barn.

What causes you to be tired all the time and major headaches?

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

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

“ 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”

Why do untreated borderlines always blame their partners when they actually think they are normal?

[old diagram got deleted by accident]

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

nine

Liam Coen: I think Trevor Lawrence’s footwork has drastically improved - NBC Sports

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

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.

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

In schematic diagrams this is the symbol for a fuse:

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

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

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

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.

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

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

But it can get overloaded, and no longer works.

Upvotes:

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

He then describes Rainy Season and Lightning.

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

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

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

Edit 2024–10.

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

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

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

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

2024–10–10[John johnson John Johnson ]

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.

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.

2024–09–27 [ 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:

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

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

Barnstars:

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

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.

2024–10–16 [ OO OLAOYE OYEBODE ]

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

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

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.

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

eight

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

[image of Common-mode choke]

Here is a simplified AC power diagram.

This is 'the assistant's answer'

At least they know the answer if they wanted it.

One

What is lightning?