Logo

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?

11.06.2025 02:25

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?

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

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

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

6 million Chickens Dead and Counting - Daily Kos

At least they know the answer if they wanted it.

One

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

Why do you have to be 18+ to go live on TikTok?

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

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

(Dc diagram shown, AC is similar).

New Study Finds No Evidence of Tension in Hubble Constant - Sci.News

2024–10–10[John johnson John Johnson ]

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

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

AI could unleash 'deep societal upheavals' that many elites are ignoring, Palantir CEO Alex Karp warns - Fortune

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

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.

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

Amazon launches new R&D group focused on agentic AI and robotics - TechCrunch

what exactly is a ‘surge’ protector?

Barnstars:

[image of Common-mode choke]

If the world was flat, would it be possible to see Mount Everest if it was on the other side of the Earth on a clear sunny day?

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?

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

2024–10–16 [ OO OLAOYE OYEBODE ]

NBA mock draft 2025: Updated projection with latest rumors after combine, college withdrawals - SBNation.com

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

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.

Scientists: We Built 'World's Smallest Violin' - Newser

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

Edit 2024–10.

nine

What are some reasons why people may fear strong men?

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.

Here is a simplified AC power diagram.

I post the exact comment here.

Final Fantasy Tactics is at long-last getting a remaster for Xbox and PC, and its got a release date - Windows Central

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

[old diagram got deleted by accident]

“ 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”

Rare ‘Einstein zig-zag’ sheds light on universe’s hidden forces - The Brighter Side of News

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.

A circuit breaker is similar, but is resettable.

How do you emotionally react to when others seem to feel sorry for you?

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

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

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

To a flat Earther, what's wrong with the idea that gravity is simply a force inherent to space which operates only in one dimension? Why do they go further and try to deny gravity rather than just saying it's different than physicists claim?

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

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

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

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.

There are two important concepts here.

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

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

This is 'the assistant's answer'

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.

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

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

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

so, what happens?

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

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

First Sentence:

What does a fuse do?

a photo is worth a thousand words.

In schematic diagrams this is the symbol for a fuse:

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

He then describes the function of a fuse.

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

The other is “what does a “fuse” do?”

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

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

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

What is lightning?

But it can get overloaded, and no longer works.

He then asserts :

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

This device then solves the entire problem.

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

He then describes Rainy Season and Lightning.

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

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

2024–10–14 [Omar Gharbi Omar Gharbi ]

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

eight

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

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

Upvotes:

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.

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

This one hit behind the barn.

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