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: 28.06.2025 01:14
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
These devices are installed between the “hot” and “neutral” and protective ground.
I post the exact comment here.
Will Canada and Mexico become stronger partners in the Trump era?
A fuse is a non-resetable over current circuit protector.
At one ohm, the resistor has a maximum of 1 watt power.
2024–10–16 [ OO OLAOYE OYEBODE ]
IBM’s New Quantum Roadmap Brings the Bitcoin Threat Closer - Decrypt
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.
He then describes Rainy Season and Lightning.
Barnstars:
Russell takes win in Canada as Piastri and Norris collide - Formula 1
2024–10–14 [Omar Gharbi Omar Gharbi ]
A circuit breaker is similar, but is resettable.
But it can get overloaded, and no longer works.
Why do some women squirt and some don't?
The bolt then partially travels down the line to your home.
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
The third is lightning and “how it gets conducted into a home.”
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
But… the neutral is now “floating” because of the 1 ohm resistance.
This is 'the assistant's answer'
Here is a simplified AC power diagram.
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
what exactly is a ‘surge’ protector?
Mazda Blamed Owners Until Regulators Stepped In - Carscoops
Can the fuse protect the electronic devices from lightning instead of a surge protector.
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?
It also is a device that limits the change in current flow.
What are the pros and cons of a prospective bride/groom not having any siblings?
the problem then depends on "how fast does the fuse operate?".
It seems Mohan does not understand the difference between a comment and an Answer.
The other is “what does a “fuse” do?”
Do you think Keir Starmer is the "party of hope" in the UK?
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 during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
(Dc diagram shown, AC is similar).
Why do Argentinians use "vos" instead of "tú" in informal speech?
This is where this question deviates from being a 'generic' question, and becomes more specific.
First Sentence:
What is lightning?
AMD once again first to top GPU clock charts with RX 9060 XT delivering 3.1 GHz - VideoCardz.com
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
One
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
Popular rock band thrown off concert lineup after icon’s wife fights with band manager - NJ.com
2024–10–10[John johnson John Johnson ]
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
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.
Kristen Bell sends Adam Scott "deeply insulting" voicemails when she's mad about Severance - AV Club
He then asserts :
In schematic diagrams this is the symbol for a fuse:
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
PlayStation Studios boss confident Marathon won't repeat the mistakes of Concord - Game Developer
So, the voltage could go up to 500 volts, and the fuse will not open up.
Because the load is inductive, the current lags the voltage.(by a bit).
a photo is worth a thousand words.
Fed’s Waller sees path to multiple interest-rate cuts this year - MarketWatch
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.
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
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.
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
so, what happens?
He then describes the function of a fuse.
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.
What does a fuse do?
One is “what exactly is in a ‘surge protector’ ? ”
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
There are two important concepts here.
An AC voltage/ current source, and an ac inductive load.
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
For this case there are devices called Metal oxide varistors (MOV).
This is where the MOV conducts again, and dissipated the energy.
These are simplified answers to the original question, and does not change anything I wrote above.
This is the picture of an electronic coil of wire wound around a core of magnetic material.
Upvotes:
eight
This device then solves the entire problem.
[old diagram got deleted by accident]
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
nine
At least they know the answer if they wanted it.
[image of Common-mode choke]
“ 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”
Now when you have a certain ac resistance, then a current flows in a loop.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
but this device (an Inductor) … impedes the rapid changes in the current.
The MOV will conduct when the voltage exceeds 50% of line voltage.
There are three different concepts here that are getting confused.
This one hit behind the barn.
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.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
Edit 2024–10.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
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.