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?

12.06.2025 01:19

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

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

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.

Why should the law care about what I do behind closed doors?

[old diagram got deleted by accident]

2024–10–16 [ OO OLAOYE OYEBODE ]

He then asserts :

The FCC is cracking down on EchoStar’s deployment of 5G. - The Verge

Here is a simplified AC power diagram.

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

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

How far back into your childhood can your remember and what is your favorite memory of that time?

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

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

He then describes Rainy Season and Lightning.

How can MeTV Toons compete with other national broadcast TV networks?

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

What does a fuse do?

But it can get overloaded, and no longer works.

Being fat is a trap - Hacker News

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

(Dc diagram shown, AC is similar).

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.

'Cheers' star's cause of death released - KSDK

2024–10–14 [Omar Gharbi Omar Gharbi ]

A circuit breaker is similar, but is resettable.

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.

Nvidia tops Microsoft, regains most valuable company title for first time since January - CNBC

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.

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

Why do people keep saying they have evidence and have presented it that proves you're wrong even though they have none and haven't presented anything? Furthermore, what do they think you're wrong about?

One

Edit 2024–10.

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

Has anyone ever participated in a gang bang and what was it like?

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

2024–10–10[John johnson John Johnson ]

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

What if Homelander turned out to be a good guy instead of an evil milk drinking manchild? Nobody seems to touch on this much.

At least they know the answer if they wanted it.

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

He then describes the function of a fuse.

Why do some straight men enjoy wearing women's lingerie?

so, what happens?

2024–10–00 [ Ammar Mahdi ] Ammar Mahdi

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

Traders Scour for ‘Elusive’ Catalyst to Push S&P 500 to Record - Bloomberg

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

The other is “what does a “fuse” do?”

There are three different concepts here that are getting confused.

What’s the worst thing you caught anyone in your family doing?

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

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.

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

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

There are two important concepts here.

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

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

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

2024–10–11 [Victor Olarewsju Victor Olarewaju ]

[image of Common-mode choke]

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

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

a photo is worth a thousand words.

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

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

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

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

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

nine

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

First Sentence:

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

Upvotes:

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

what exactly is a ‘surge’ protector?

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

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

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

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

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

This is 'the assistant's answer'

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”

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?

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

In schematic diagrams this is the symbol for a fuse:

What is lightning?

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

Barnstars:

I post the exact comment here.

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.

This one hit behind the barn.

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

This device then solves the entire problem.

eight