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?

14.06.2025 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?

What is lightning?

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

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

Where's the Civil War everyone on the left said would happen?

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

[image of Common-mode choke]

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

How do you know how physically attractive you actually are?

He then describes the function of a fuse.

[old diagram got deleted by accident]

eight

—— which songs do certain kuorans remind you of?

Edit 2024–10.

2024–10–16 [ OO OLAOYE OYEBODE ]

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

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

This device then solves the entire problem.

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

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

Breast cancer makes Hull man 'feel like an imposter' - BBC

2024–10–10[John johnson John Johnson ]

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

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

How do I convince my husband that a threesome is okay?

At least they know the answer if they wanted it.

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

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

Is there a correlation between being a medium and mental health?

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

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

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

Has anyone shared his wife with a friend? How was it?

He then describes Rainy Season and Lightning.

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.

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

How can someone determine if their partner is in another romantic relationship, particularly if they do not live together?

Here is a simplified AC power diagram.

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

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

What does it mean if you dream your dad died?

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.

Barnstars:

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

What's the most incredible coincidence that ever happened to you?

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

In schematic diagrams this is the symbol for a fuse:

so, what happens?

What should every American know before traveling to the UK?

(Dc diagram shown, AC is similar).

The other is “what does a “fuse” do?”

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.

Has a psychic ever made a crazy prediction that turned out to be true?

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.

A circuit breaker is similar, but is resettable.

There are three different concepts here that are getting confused.

I have been married for 34 years, and I found out my wife lied, and cheated a lot back before we got married. Does she not change, or is it possible she is still a cheater?

This one hit behind the barn.

First Sentence:

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

Why is pornography still alive and not illegal? Why doesn’t the government do about tricking women into them?

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.

2024–09–27 [ 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?

But it can get overloaded, and no longer works.

a photo is worth a thousand words.

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.

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

what exactly is a ‘surge’ protector?

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

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

“ 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 does a fuse do?

One

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

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

I post the exact comment here.

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

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

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

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

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

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

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

Upvotes:

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.

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

2024–10–14 [Omar Gharbi Omar Gharbi ]

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

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

There are two important concepts here.

nine

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

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

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

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

He then asserts :

This is 'the assistant's answer'

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

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

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

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