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: 02.07.2025 08:09
Upvotes:
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
First Sentence:
How do you feel about the impending end of what Donald Trump calls "the Green New scam"?
What does a fuse do?
But… the neutral is now “floating” because of the 1 ohm resistance.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
Stopping alcoholism gets smarter with smartwatches - The Brighter Side of News
He then asserts :
2024–10–10[John johnson John Johnson ]
There are three different concepts here that are getting confused.
He chose to serve longer in the Army. Now he's saddled with $40,000 in moving costs. - NBC News
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.
These are simplified answers to the original question, and does not change anything I wrote above.
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
What is lightning?
One
[image of Common-mode choke]
What’s wrong with anti-imperialism?
Edit 2024–10.
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.
Usnoflast well tolerated, shows signs of efficacy in ALS patients - ALS News Today
The other is “what does a “fuse” do?”
These devices are installed between the “hot” and “neutral” and protective ground.
The bolt then partially travels down the line to your home.
What is your favourite true story to tell at a party?
the problem then depends on "how fast does the fuse operate?".
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.
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.
Raw recap & reactions: Royal chaos - Cageside Seats
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
A circuit breaker is similar, but is resettable.
It seems Mohan does not understand the difference between a comment and an Answer.
Did Obito ever fully redeem himself in everyone's eyes?
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
(Dc diagram shown, AC is similar).
This is the picture of an electronic coil of wire wound around a core of magnetic material.
F1 in Spain: Now that was a lapse in judgment - Ars Technica
but I think this circuit , shows a few more pieces.
so, what happens?
In schematic diagrams this is the symbol for a fuse:
Jonathan Joss, ‘King of the Hill’ and ‘Parks & Recreation’ actor, dead at 59 after shooting - CNN
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
An AC voltage/ current source, and an ac inductive load.
Robinhood Traders Playing S&P Index-Guessing Game Get Schooled - Bloomberg
“ 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 'the assistant's answer'
The MOV will conduct when the voltage exceeds 50% of line voltage.
So, the voltage could go up to 500 volts, and the fuse will not open up.
nine
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
Why do most Indian women cuckold or cheat on their husbands?
For this case there are devices called Metal oxide varistors (MOV).
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
This device then solves the entire problem.
Trump Punts on Crypto Divestment, Says If US Didn't Have Bitcoin 'China Would' - Decrypt
what exactly is a ‘surge’ protector?
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.
At least they know the answer if they wanted it.
but this device (an Inductor) … impedes the rapid changes in the current.
Now when you have a certain ac resistance, then a current flows in a loop.
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
He then describes the function of a fuse.
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 during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
2024–10–14 [Omar Gharbi Omar Gharbi ]
He then describes Rainy Season and Lightning.
This one hit behind the barn.
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.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
Because the load is inductive, the current lags the voltage.(by a bit).
2024–10–16 [ OO OLAOYE OYEBODE ]
At one ohm, the resistor has a maximum of 1 watt power.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
The third is lightning and “how it gets conducted into a home.”
Here is a simplified AC power diagram.
A fuse is a non-resetable over current circuit protector.
Can the fuse protect the electronic devices from lightning instead of a surge protector.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
One is “what exactly is in a ‘surge protector’ ? ”
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
eight
But it can get overloaded, and no longer works.
Barnstars:
There are two important concepts here.
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
[old diagram got deleted by accident]
This is where this question deviates from being a 'generic' question, and becomes more specific.
I post the exact comment here.
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.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
a photo is worth a thousand words.
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 is where the MOV conducts again, and dissipated the energy.