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?

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

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

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

McDonald’s bringing it’s own version of iconic dessert to its McFlurry menu - MLive.com

what exactly is a ‘surge’ protector?

But it can get overloaded, and no longer works.

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

Salmonella outbreak linked to California egg distributor sickens 79 people - NPR

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.

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

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?

Packers waive receiver, open up roster spot - Acme Packing Company

At least they know the answer if they wanted it.

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, what happens?

Ethane Exporter Says U.S. Won’t Allow Shipments to China - WSJ

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

First Sentence:

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

Is it painful for men to wear bras, panties, and tampons?

There are two important concepts here.

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 'the assistant's answer'

Brain ‘Reset Wave’ May Explain How ECT Rapidly Relieves Depression - Neuroscience News

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

He then describes the function of a fuse.

eight

UN calls for investigation into killings near Gaza aid site - BBC

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

(Dc diagram shown, AC is similar).

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

What would you do if you found out that someone had broken into your home while you were sleeping?

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.

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 ]

Confirmed: Breakfast Cereals Are Getting Sweeter And Less Nutritious - ScienceAlert

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

[image of Common-mode choke]

Here is a simplified AC power diagram.

Scoop: Nike names Michael Gonda as chief communications officer - Axios

One

What is lightning?

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

Evidence piles up that Trump's tariffs are crushing job market - Daily Kos

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

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

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

Aaron Rodgers says decision to sign with Steelers 'was best for my soul' - NFL.com

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.

What does a fuse do?

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

How will the article end in Part III of Gleissner's hit piece?

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.

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

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

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

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

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

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

He then describes Rainy Season and Lightning.

2024–10–16 [ OO OLAOYE OYEBODE ]

[old diagram got deleted by accident]

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

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

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.

In schematic diagrams this is the symbol for a fuse:

Upvotes:

Barnstars:

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.

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

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

This one hit behind the barn.

A circuit breaker is similar, but is resettable.

a photo is worth a thousand words.

Edit 2024–10.

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

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

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

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

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

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

nine

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

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

He then asserts :

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

“ 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”

I post the exact comment here.

2024–10–14 [Omar Gharbi Omar Gharbi ]

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

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

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

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

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.

The other is “what does a “fuse” do?”

This device then solves the entire problem.

There are three different concepts here that are getting confused.