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 04:18
A circuit breaker is similar, but is resettable.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.
Now when you have a certain ac resistance, then a current flows in a loop.
Stunning Space Film Premieres June 9 at Natural History’s Planetarium - West Side Rag
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
At one ohm, the resistor has a maximum of 1 watt power.
These are simplified answers to the original question, and does not change anything I wrote above.
5 Things to Know Before the Stock Market Opens - Yahoo Finance
The bolt then partially travels down the line to your home.
This device then solves the entire problem.
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
He then asserts :
(Dc diagram shown, AC is similar).
UN calls for investigation into killings near Gaza aid site - BBC
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
2024–10–16 [ OO OLAOYE OYEBODE ]
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
What lowers a fever the quickest?
what exactly is a ‘surge’ protector?
One
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
Ancient 'pharaoh's curse' fungus shows promise in killing cancer cells - Yahoo
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 least they know the answer if they wanted it.
The third is lightning and “how it gets conducted into a home.”
Trump says 'it's possible' US gets involved in Israel-Iran conflict - ABC News
Because the load is inductive, the current lags the voltage.(by a bit).
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
so, what happens?
Exclusive | New York to Build One of First U.S. Nuclear-Power Plants in Generation - WSJ
In schematic diagrams this is the symbol for a fuse:
The MOV will conduct when the voltage exceeds 50% of line voltage.
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.
Texas woman dies from brain-eating amoeba after using tap water for nasal rinse - Scripps News
For this case there are devices called Metal oxide varistors (MOV).
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.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
What are some life hacks for living on your own?
But… the neutral is now “floating” because of the 1 ohm resistance.
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.
2024–09–27 [ 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?
If you could go back and rewrite the Legend of Korra, what would you change, and why?
but I think this circuit , shows a few more pieces.
First Sentence:
Upvotes:
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.
the problem then depends on "how fast does the fuse operate?".
Can the fuse protect the electronic devices from lightning instead of a surge protector.
What does a fuse do?
He then describes the function of a fuse.
I post the exact comment here.
But it can get overloaded, and no longer works.
One is “what exactly is in a ‘surge protector’ ? ”
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.
There are three different concepts here that are getting confused.
This is where the MOV conducts again, and dissipated the energy.
What is lightning?
[image of Common-mode choke]
This one hit behind the barn.
but this device (an Inductor) … impedes the rapid changes in the current.
Edit 2024–10.
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.
He then describes Rainy Season and Lightning.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
The other is “what does a “fuse” do?”
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
“ 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”
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
Barnstars:
A fuse is a non-resetable over current circuit protector.
It seems Mohan does not understand the difference between a comment and an Answer.
a photo is worth a thousand words.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
2024–10–10[John johnson John Johnson ]
[old diagram got deleted by accident]
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
This is 'the assistant's answer'
These devices are installed between the “hot” and “neutral” and protective ground.
eight
This is the picture of an electronic coil of wire wound around a core of magnetic material.
nine
It also is a device that limits the change in current flow.
There are two important concepts here.
2024–10–14 [Omar Gharbi Omar Gharbi ]
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
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.
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
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.
An AC voltage/ current source, and an ac inductive load.
This is where this question deviates from being a 'generic' question, and becomes more specific.
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
So, the voltage could go up to 500 volts, and the fuse will not open up.