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?

09.06.2025 11:04

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?

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.

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

Do you believe that the portrayal of smoking in films and music videos contributes to the glamorization of cigarettes in society?

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

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

This device then solves the entire problem.

What is so great about Jiraiya?

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

He then describes the function of a fuse.

Upvotes:

What is the hidden meaning behind 'Skibidi Ohio', and why is it trending?

I post the exact comment here.

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

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

Treasury Secretary Busts ‘Alarmist’ Inflation Predictions - The Daily Wire

First Sentence:

This one hit behind the barn.

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.

How do I become mentally strong?

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

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

what exactly is a ‘surge’ protector?

Google Confirms Most Gmail Users Must Upgrade Accounts - Forbes

The other is “what does a “fuse” do?”

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

There are two important concepts here.

Why do people think Justin Bieber is worse than Joseph Stalin?

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

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

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

What are the best examples of reverse psychology?

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

(Dc diagram shown, AC is similar).

“ 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”

Adopting a healthy diet may have cardiometabolic benefits regardless of weight loss - Harvard T.H. Chan School of Public Health

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

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

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

Switch 2 quietly makes shiny hunting in Pokémon Scarlet and Violet way better - Polygon

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?

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

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.

What does 'Whose flesh is like the flesh of donkeys’ mean (Ezekiel 23:20)?

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

This is 'the assistant's answer'

[old diagram got deleted by accident]

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

2024–10–16 [ OO OLAOYE OYEBODE ]

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

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

What does a fuse do?

nine

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

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

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

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

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

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 are three different concepts here that are getting confused.

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

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

At least they know the answer if they wanted it.

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.

In schematic diagrams this is the symbol for a fuse:

Barnstars:

One

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

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.

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.

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

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

What is lightning?

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

A circuit breaker is similar, but is resettable.

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

2024–10–10[John johnson John Johnson ]

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

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

Edit 2024–10.

But it can get overloaded, and no longer works.

so, what happens?

He then asserts :

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

eight

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.

[image of Common-mode choke]

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

2024–10–14 [Omar Gharbi Omar Gharbi ]

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

He then describes Rainy Season and Lightning.

a photo is worth a thousand words.

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

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

Here is a simplified AC power diagram.

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