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: 26.06.2025 01:21
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
This one hit behind the barn.
Now when you have a certain ac resistance, then a current flows in a loop.
When does a man tell a woman he has feelings for her?
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
This device then solves the entire problem.
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
Android 16 QPR1 Beta 2 tests new Gemini launch animation with vibration - 9to5Google
I post the exact comment here.
Edit 2024–10.
A fuse is a non-resetable over current circuit protector.
Seven Mindblowing Space Photos Taken This Month - PetaPixel
Can the fuse protect the electronic devices from lightning instead of a surge protector.
What is lightning?
nine
Apple Is About to Upgrade Your Current AirPods with Some Neat New Abilities - Gear Patrol
but I think this circuit , shows a few more pieces.
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
“ 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”
Why am I so tired of the keto diet?
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
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?
This is 'the assistant's answer'
MindsEye team deploys first hotfix as they scramble to make the dang thing work - Polygon
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
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.
Kuorans, what are some things unique to your country?
But it can get overloaded, and no longer works.
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
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.
Republicans, why do you support Kamala Harris over Donald Trump?
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.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
2024–10–14 [Omar Gharbi Omar Gharbi ]
For this case there are devices called Metal oxide varistors (MOV).
2024–10–10[John johnson John Johnson ]
There are two important concepts here.
Intercontinental Title Match Added To WWE Money In The Bank 2025 - eWrestlingNews.com
a photo is worth a thousand words.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
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.
Samsung is struggling to sell the Galaxy S25 Edge - SamMobile
so, what happens?
There are three different concepts here that are getting confused.
First Sentence:
10 Habits that are Aging Your Gut, According to Experts - EatingWell
One is “what exactly is in a ‘surge protector’ ? ”
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
But… the neutral is now “floating” because of the 1 ohm resistance.
Do Republicans want to ban books and decide what your kids can and can’t read?
The third is lightning and “how it gets conducted into a home.”
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
This is where this question deviates from being a 'generic' question, and becomes more specific.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
This is where the MOV conducts again, and dissipated the energy.
An AC voltage/ current source, and an ac inductive load.
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.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
A circuit breaker is similar, but is resettable.
He then describes the function of a fuse.
The MOV will conduct when the voltage exceeds 50% of line voltage.
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.
At one ohm, the resistor has a maximum of 1 watt power.
He then asserts :
At least they know the answer if they wanted it.
He then describes Rainy Season and Lightning.
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
What does a fuse do?
[old diagram got deleted by accident]
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.
Because the load is inductive, the current lags the voltage.(by a bit).
what exactly is a ‘surge’ protector?
Upvotes:
These are simplified answers to the original question, and does not change anything I wrote above.
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.
In schematic diagrams this is the symbol for a fuse:
The bolt then partially travels down the line to your home.
[image of Common-mode choke]
Here is a simplified AC power diagram.
the problem then depends on "how fast does the fuse operate?".
So, the voltage could go up to 500 volts, and the fuse will not open up.
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
(Dc diagram shown, AC is similar).
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.
It also is a device that limits the change in current flow.
2024–10–16 [ OO OLAOYE OYEBODE ]
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
Barnstars:
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
One
The other is “what does a “fuse” do?”
eight