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: 18.06.2025 04:07

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?

Barnstars:

nine

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

Why is there no evidence of a multiverse theory?

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.

Edit 2024–10.

This is 'the assistant's answer'

When do you feel most peaceful ever?

2024–10–16 [ OO OLAOYE OYEBODE ]

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

At least they know the answer if they wanted it.

How can we become the best humans? How can we trust each other?

2024–10–14 [Omar Gharbi Omar Gharbi ]

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

This one hit behind the barn.

At least 8 dead in shooting near Israeli and US-supported aid sites in Gaza - NPR

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?

He then describes Rainy Season and Lightning.

a photo is worth a thousand words.

Are you afraid of being alone?

He then asserts :

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

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

Adam Scott, nearly 45 years old, with chance to redefine career on U.S. Open Sunday - NBC Sports

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

[image of Common-mode choke]

[old diagram got deleted by accident]

What kind of person makes you think "how come there are people like that"?

There are two important concepts here.

There are three different concepts here that are getting confused.

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

What are the different celebrity lists (A-list, B-list, C-list, D-list)? How does one become a part of these lists and move up or down in status?

I post the exact comment here.

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

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

Have you ever had a bad gut feeling about someone and it was right?

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.

What makes a woman attractive?

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

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

The Best Deals Today: Indiana Jones and the Great Circle, Nintendo Switch OLED, and More - IGN

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

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.

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

How conservative the Japanese people really is? And the government?

In schematic diagrams this is the symbol for a fuse:

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

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

Why would the state lie about the Earth's shape? We know that it's flat, but why do they lie and tell us that it is a sphere?

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

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

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

How can targeted individuals protect themselves from organized stalking? Have you discovered practical strategies?

(Dc diagram shown, AC is similar).

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

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

This device then solves the entire problem.

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

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

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

The other is “what does a “fuse” do?”

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

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.

But it can get overloaded, and no longer works.

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

so, what happens?

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

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.

One

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

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

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.

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

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

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.

2024–10–10[John johnson John Johnson ]

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

“ 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”

What is lightning?

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

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

Here is a simplified AC power diagram.

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

First Sentence:

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

A circuit breaker is similar, but is resettable.

Upvotes:

What does a fuse do?

what exactly is a ‘surge’ protector?

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

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

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

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

He then describes the function of a fuse.