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 04:03

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?

Here is a simplified AC power diagram.

He then describes Rainy Season and Lightning.

He then asserts :

Do crossdressers like wearing pantyliners and tampons in their butts?

what exactly is a ‘surge’ protector?

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

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

Why does Nickelback, a popular Canadian alternative-rock band, receive so much hate? Is it because they are not considered "edgy" by some people?

Upvotes:

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

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

Do you wear tights for warmth or to make your legs look better?

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

[old diagram got deleted by accident]

There are two important concepts here.

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

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

This one hit behind the barn.

What is lightning?

Crypto Bros Celebrate Themselves at Bitcoin’s Most MAGA Convention Yet - Rolling Stone

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

[image of Common-mode choke]

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.

At what point does trespassing become self defense? What are the necessary conditions for this line to be crossed from trespassing to self defense?

The other is “what does a “fuse” do?”

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

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

Liberals, why don't you like Conservatives?

He then describes the function of a fuse.

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

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

Resident Evil surprise return announced by PlayStation - GAMINGbible

What does a fuse do?

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

At least they know the answer if they wanted it.

What was your first trans experience like?

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

2024–10–10[John johnson John Johnson ]

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

I think that being gay is wrong, but I treat gay people respectfully like any other person. Is it homophobic? Or offensive in any kind of way? Aren’t disagreement and discrimination two different things?

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

First Sentence:

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

Big Tech Is Back in S&P 500 Driver’s Seat as Profit Engines Hum - Bloomberg

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).

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

Why do flat earthers exist?

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

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

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

I'm pretty sure that my dog is transgender, how would I go about transitioning it?

But it can get overloaded, and no longer works.

2024–10–16 [ OO OLAOYE OYEBODE ]

a photo is worth a thousand words.

Two Ocean Bands Are Warming Faster Than Ever — What This Means for Our Climate - The Daily Galaxy

“ 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”

A circuit breaker is similar, but is resettable.

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.

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

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.

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

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

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

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

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

One

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.

eight

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

(Dc diagram shown, AC is similar).

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

nine

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 bolt then partially travels down the line to your home.

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

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

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.

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

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

This device then solves the entire problem.

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

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

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

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

There are three different concepts here that are getting confused.

Barnstars:

so, what happens?

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

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

Edit 2024–10.

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

2024–10–14 [Omar Gharbi Omar Gharbi ]

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

In schematic diagrams this is the symbol for a fuse:

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.

I post the exact comment here.

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?