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 02:13

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?

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.

He then asserts :

What do flat Earthers think causes the "magical downward force"?

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.

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

so, what happens?

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

what exactly is a ‘surge’ protector?

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

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?

When a dog smells another dog’s poo or wee, do they then remember that scent for when they smell it again, or even further know which dog they are smelling if they know the dog?

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

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

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

Why would Trump make conspiracy claims that Haitians are eating pets in Ohio?

2024–10–10[John johnson John Johnson ]

Upvotes:

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

How will Israelis respond to someone claiming that anti-Zionism is not anti-Semitism, in the same way as anti-feminism not being misogyny and opposing same-sex marriage not being homophobia?

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.

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

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

My friend asked my crush and he said my crush hates me but not in a rude way. What does that mean?

What does a fuse do?

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

Edit 2024–10.

Why are Trump supporters so incredibly stupid?

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

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.

In schematic diagrams this is the symbol for a fuse:

Do "flat-earthers" attempt to sail around the world to prove their theory? Would this support their belief in a flat Earth?

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

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

He then describes Rainy Season and Lightning.

Why is Reagan seen as the best president in the USA when he literally destroyed the American economy with trickle down system and was strongly against worker unions?

nine

What is lightning?

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

What are some lesser-known facts about Bollywood and the Indian film industry? Are there any insider secrets that only those in the industry would know? How reliable are these claims?

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

a photo is worth a thousand words.

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

What's a memory from your childhood that shaped who you are today?

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

One

This is 'the assistant's answer'

Are narcissists happy people generally?

A circuit breaker is similar, but is resettable.

2024–10–16 [ OO OLAOYE OYEBODE ]

I post the exact comment here.

Did you become a cuckold for your wife?

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.

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

When was you wife swapping fantasy started?

The other is “what does a “fuse” do?”

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

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

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

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

First Sentence:

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

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

[image of Common-mode choke]

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

There are three different concepts here that are getting confused.

[old diagram got deleted by accident]

This one hit behind the barn.

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

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

He then describes the function of a fuse.

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

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

eight

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

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

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

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

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

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.

2024–10–14 [Omar Gharbi Omar Gharbi ]

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

This device then solves the entire problem.

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.

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

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

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

But it can get overloaded, and no longer works.

Barnstars:

Here is a simplified AC power diagram.

There are two important concepts here.

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 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”

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

(Dc diagram shown, AC is similar).

At least they know the answer if they wanted it.

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