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?

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

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

2024–10–14 [Omar Gharbi Omar Gharbi ]

The Gears of War Reloaded beta is here, what you need to know and how to play - Windows Central

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

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

a photo is worth a thousand words.

New COVID variant is spreading. Don’t underestimate it, experts say. - NJ.com

Barnstars:

One

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

A fireball over desert mountains photo of the day for May 30, 2025 - Space

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

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

nine

Replace Your Gmail Password Now, Google Tells 2 Billion Users - Forbes

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

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

[image of Common-mode choke]

Dow Jones Futures: Israel-Iran Attacks Hit Market; The Next AI Winners After Nvidia, Broadcom? - Investor's Business Daily

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

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?

He then describes Rainy Season and Lightning.

When Chinese people see my pets, will they think of it as their food?

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.

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

Edit 2024–10.

I have a black elbow sleeve leotard that I wear with sheer pantyhose. Should I keep my pants off and show my legs?

There are two important concepts here.

This one hit behind the barn.

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

Why do atheists love to preach against Abrahamic religions and mock God? Even if they do not fear the eternal fire of hell, pious Muslims will certainly not leave them alone and will take brutal revenge until they surrender and repent of their sins.

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.

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

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

By skipping offseason workouts, Lamar Jackson forfeits another $750,000 - NBC Sports

“ 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”

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

[old diagram got deleted by accident]

Recently, Trump bluntly stated that Ukraine's joining NATO is the root cause of the outbreak of the Russian-Ukrainian war. Did Trump's remarks declare Ukraine's dream of joining NATO completely shattered?

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

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

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.

Taking five minutes a day to do this can improve happiness, study finds - San Francisco Chronicle

A circuit breaker is similar, but is resettable.

I post the exact comment here.

so, what happens?

Is Claude AI better than ChatGPT for Alexa?

Here is a simplified AC power diagram.

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

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

Consumer sentiment swings sharply higher in June as tariff anxiety recedes - Axios

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

2024–10–10[John johnson John Johnson ]

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

I own a small solar company in Montana and might have to lay off most of my employees. I'm not hiding that from them. - Business Insider

2024–10–16 [ OO OLAOYE OYEBODE ]

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

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

Is Donald Trump's very public crusade against the so-called "woke" and illegal immigration an asset or liability to the popularity of right-wing parties in Europe?

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.

This is 'the assistant's answer'

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

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

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

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

There are three different concepts here that are getting confused.

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

The other is “what does a “fuse” do?”

First Sentence:

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

(Dc diagram shown, AC is similar).

At least they know the answer if they wanted it.

He then asserts :

What is lightning?

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

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

eight

Upvotes:

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

what exactly is a ‘surge’ protector?

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

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

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

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 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 “.

But it can get overloaded, and no longer works.

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

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

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

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

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

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

In schematic diagrams this is the symbol for a fuse:

What does a fuse do?

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

This device then solves the entire problem.