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?

Last Updated: 27.06.2025 00:30

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?

One

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

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.

Anti-doping watchdog urges US authorities to shut down planned drug-fueled event in Las Vegas - AP News

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

He then describes Rainy Season and Lightning.

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

Im a 14 year old girl who doesnt want to wear a hijab but my parents force me to wear one. It makes me dislike it more. Im not ready for one no matter what people say and they get really mad at me. I have bad grades and no motivation. What do I do?

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.

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

In schematic diagrams this is the symbol for a fuse:

Anthony Richardson sidelined by shoulder injury - NBC Sports

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

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

At least they know the answer if they wanted it.

What do you do you do if your motorcycle chain snaps while riding on the highway?

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

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

What is lightning?

Why do Indian guys love Russian girls?

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

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.

Barnstars:

It's time to make friends with your viruses - Salon.com

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.

He then describes the function of a fuse.

This one hit behind the barn.

Sydney Sweeney visits Central NY, leads Boxing Hall of Fame parade (photos, video) - Syracuse.com

A circuit breaker is similar, but is resettable.

Here is a simplified AC power diagram.

nine

What are the best ways to get as strong as Schwarzenegger? What foods, supplements, etc., should I use?

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

2024–10–14 [Omar Gharbi Omar Gharbi ]

There are three different concepts here that are getting confused.

A Game-Changing Telescope Is About to Drop First Pics. Here's How to Watch. - ScienceAlert

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.

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

What is Quora? Are there any tips?

He then asserts :

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

[image of Common-mode choke]

Liverpool FC parade crash injured rises to 109 - BBC

First Sentence:

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?

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

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

what exactly is a ‘surge’ protector?

so, what happens?

eight

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

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

But it can get overloaded, and no longer works.

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

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

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.

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

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

(Dc diagram shown, AC is similar).

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

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

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

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.

This device then solves the entire problem.

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.

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.

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

This is 'the assistant's answer'

Upvotes:

2024–10–10[John johnson John Johnson ]

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.”

The other is “what does a “fuse” do?”

[old diagram got deleted by accident]

I post the exact comment here.

“ 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”

There are two important concepts here.

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

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

What does a fuse do?

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

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

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

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

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

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

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

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

a photo is worth a thousand words.

Edit 2024–10.

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

2024–10–16 [ OO OLAOYE OYEBODE ]

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