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: 20.06.2025 16:14
a photo is worth a thousand words.
This device then solves the entire problem.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
I post the exact comment here.
what exactly is a ‘surge’ protector?
eight
China Housing Demand to Stay at 75% Below Peak, Goldman Says - Bloomberg
So, the voltage could go up to 500 volts, and the fuse will not open up.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
(Dc diagram shown, AC is similar).
Why do our deceased do not protect us from other bad spirits?
2024–10–16 [ OO OLAOYE OYEBODE ]
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
Why do I get stressed when I go to bed?
What does a fuse do?
It also is a device that limits the change in current flow.
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.
What’s the saddest thing you’ve seen at your job?
Now when you have a certain ac resistance, then a current flows in a loop.
There are two important concepts here.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
What is the estimated number of people with an extra X chromosome?
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
The third is lightning and “how it gets conducted into a home.”
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
Having Low Levels Of This Vitamin Can Cause Dry Eyes. Are You Getting Enough? - Women's Health
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
He then describes Rainy Season and Lightning.
What is lightning?
This is where this question deviates from being a 'generic' question, and becomes more specific.
But it can get overloaded, and no longer works.
He then describes the function of a fuse.
Can you write a short story with a twist ending?
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
Because the load is inductive, the current lags the voltage.(by a bit).
Can the fuse protect the electronic devices from lightning instead of a surge protector.
Why did my ex-narcissist move so fast with his new supply marriage engagement moving in, etc.?
The MOV will conduct when the voltage exceeds 50% of line voltage.
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
but this device (an Inductor) … impedes the rapid changes in the current.
On Which Part of the Body Might One Wear Winklepickers? - Slate Magazine
2024–10–14 [Omar Gharbi Omar Gharbi ]
[image of Common-mode choke]
But… the neutral is now “floating” because of the 1 ohm resistance.
Fed interest rate decision looms as battle over cuts takes surprising turn - TheStreet
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.
At least they know the answer if they wanted it.
This is the picture of an electronic coil of wire wound around a core of magnetic material.
The bolt then partially travels down the line to your home.
This one hit behind the barn.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
but I think this circuit , shows a few more pieces.
There are three different concepts here that are getting confused.
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
This is where the MOV conducts again, and dissipated the energy.
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 fuse is a non-resetable over current circuit protector.
In schematic diagrams this is the symbol for a fuse:
It seems Mohan does not understand the difference between a comment and an Answer.
At one ohm, the resistor has a maximum of 1 watt power.
An AC voltage/ current source, and an ac inductive load.
“ 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”
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.
A circuit breaker is similar, but is resettable.
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.
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
so, what happens?
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.
2024–10–10[John johnson John Johnson ]
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
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.
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.
One
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
These devices are installed between the “hot” and “neutral” and protective ground.
Barnstars:
He then asserts :
Upvotes:
For this case there are devices called Metal oxide varistors (MOV).
This is 'the assistant's answer'
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part 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%).
Edit 2024–10.
The other is “what does a “fuse” do?”
One is “what exactly is in a ‘surge protector’ ? ”
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
These are simplified answers to the original question, and does not change anything I wrote above.
nine
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?".
First Sentence:
[old diagram got deleted by accident]
Here is a simplified AC power diagram.