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?

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

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

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

Florence gallery says portrait damaged by visitor taking a selfie - BBC

A circuit breaker is similar, but is resettable.

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

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

Do happily married husbands cheat?

Here is a simplified AC power diagram.

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.

This is 'the assistant's answer'

Scientists stunned as heat caught on camera ‘bouncing like sound’ for first time ever - Daily Express US

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

eight

First Sentence:

This researcher claims that only one thing is missing for human life expectancy to exceed 1,000 years. - Farmingdale Observer

What does a fuse do?

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

[old diagram got deleted by accident]

Simple blood test detects cancer up to 3 years before symptoms appear - Earth.com

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

At least they know the answer if they wanted it.

Barnstars:

What is a mouse breather?

[image of Common-mode choke]

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

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

How should one handle an uninvited guest at a small, intimate wedding ceremony? Is it appropriate to ask them not to attend?

He then describes Rainy Season and Lightning.

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

He then asserts :

What essential items would you need to survive and be comfortable if you had to live in a small space like a closet?

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

There are three different concepts here that are getting confused.

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

Canadians went out of their way to help Americans stranded in Canada after 9.11.2001. Why did Canadians help so much the way they did? We read that Canadians don't particularly like Americans to begin with.

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

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

The other is “what does a “fuse” do?”

Are there really people who still believe the Earth is flat?

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

What is lightning?

nine

Why are Americans obese? Is it the food or is it the psychology?

a photo is worth a thousand words.

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

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

What Makes the Florida Panthers Special? Gaudreau Tribute a Fine Example - Florida Hockey Now

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

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

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

How can I use AI to create custom music to accompany my vocal song or poetry?

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.

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

“ 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”

‘Ballerina’ Hopes To Tiptoe Past $30M U.S., $60M WW As ‘Lilo & Stitch’ Continues To Bigfoot – Box Office Preview - Deadline

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

2024–10–14 [Omar Gharbi Omar Gharbi ]

This one hit behind the barn.

2024–10–16 [ OO OLAOYE OYEBODE ]

But it can get overloaded, and no longer works.

There are two important concepts here.

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

Upvotes:

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

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

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

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

I post the exact comment here.

He then describes the function of a fuse.

In schematic diagrams this is the symbol for a fuse:

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?

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).

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

2024–10–10[John johnson John Johnson ]

so, what happens?

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.

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

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

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

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

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.

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.

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

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

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

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

Edit 2024–10.

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.

One

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

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

This device then solves the entire problem.

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