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: 01.07.2025 10:03
The third is lightning and “how it gets conducted into a home.”
Here is a simplified AC power diagram.
There are two important concepts here.
These devices are installed between the “hot” and “neutral” and protective ground.
2024–10–11 [Victor Olarewsju Victor Olarewaju ]
but I think this circuit , shows a few more pieces.
He then asserts :
Mohan forgets that a fuse is a one-time device, and needs to be replaced if it is tripped.
This is where this question deviates from being a 'generic' question, and becomes more specific.
71-year-old man makes history with world record for bench pressing - 11Alive.com
so, what happens?
At one ohm, the resistor has a maximum of 1 watt power.
The bolt then partially travels down the line to your home.
One is “what exactly is in a ‘surge protector’ ? ”
If the nominal power is 4,000 watts then the current at 230volts is 16 amps.
Because the load is inductive, the current lags the voltage.(by a bit).
First-round pairings for NASCAR Cup In-Season Challenge are set - NBC Sports
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.
This device then solves the entire problem.
But it can get overloaded, and no longer works.
Turn This ChatGPT Prompt Into A Six-Figure Passive Income Stream - Forbes
2024–10–14 [Omar Gharbi Omar Gharbi ]
A circuit breaker is similar, but is resettable.
This one hit behind the barn.
[old diagram got deleted by accident]
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.
but this device (an Inductor) … impedes the rapid changes in the current.
Ground beef sold at Whole Foods might be contaminated with E. coli, USDA warns - CNN
Upvotes:
Is the question then , "why buy a surge supressor, if the fuse alone protects the electronic circuits from a lightning bolt?".
2024–10–16 [ OO OLAOYE OYEBODE ]
A new perk for Costco executive members quietly punishes everyone else - SFGATE
so, the loop of wire then, when put together with another loop reduces the ‘noise’ on a power line.
[image of Common-mode choke]
Now when you have a certain ac resistance, then a current flows in a loop.
Struggles Finally Start Coming To An End For 3 Zodiac Signs On June 10, 2025 - YourTango
It also is a device that limits the change in current flow.
what exactly is a ‘surge’ protector?
2024–10–11 [Bobby Sanchez Bobby Sanchez ].
Packers waive receiver, open up roster spot - Acme Packing Company
(There is no concept of polarity, in the loop because the current changes direction 100 to 120 times a second (power frequency).
This is the picture of an electronic coil of wire wound around a core of magnetic material.
a photo is worth a thousand words.
Have you ever heard of the god Priapus being the same as the god Phosphorus?
I post the exact comment here.
2024–10–10[John johnson John Johnson ]
Edit 2024–10.
Have you worn a tight black mini skirt?
When the current is 200% of the rated value , it will “go open” (the link metal melts) and protect the device.
What does a fuse do?
For this case there are devices called Metal oxide varistors (MOV).
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.
Fuses, on their own, then operate much slower than the MOV variable resistance, during the lightning strike.
So, it’s possible that these devices from Trip Lite have addition suppression devices, these ones seem to be sturdy.
There are three different concepts here that are getting confused.
OK, this is Mohan Rajaratnam’s definition of a Surge suppressor.
Would individual surge supressors have save this equipment? most likely, since the surge supressor would take the jolt instead of the electronic components.
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.
“ … to protect building, lightning arrestor, is provided above building and directly connected to earth.”
nine
A fuse is a non-resetable over current circuit protector.
This is 'the assistant's answer'
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.
(Dc diagram shown, AC is similar).
What is lightning?
“ 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”
But… the neutral is now “floating” because of the 1 ohm resistance.
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.
These are simplified answers to the original question, and does not change anything I wrote above.
It’s been three xxx five werks, and there has been no response to my follow on query on his Commment to my answer.
So combined with a device called a MOV or Metal-oxide-resistor, then forms the 3rd part of a “surge suppressor “.
He then describes Rainy Season and Lightning.
“ A fuse is a device which protects the (circuit) against overload and short circuit.”
One
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?
At least they know the answer if they wanted it.
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.
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.
It seems Mohan does not understand the difference between a comment and an Answer.
He then describes the function of a fuse.
And this is the problem alone. Is the power supply in the equipmemt designed with a lightning strike in mind? Some yes, others, no.
the problem then depends on "how fast does the fuse operate?".
But during the surge, the fuse will not blow if it is a longer duration and lower value )10 to 50%).
eight
Barnstars:
In schematic diagrams this is the symbol for a fuse:
Can the fuse protect the electronic devices from lightning instead of a surge protector.
First Sentence:
2024–10–00 [ Ammar Mahdi ] Ammar Mahdi
The other is “what does a “fuse” do?”
An AC voltage/ current source, and an ac inductive load.
This is where the MOV conducts again, and dissipated the energy.
P = e* I, so since I is 16 amps, then the voltage dropped is 1/16 volt or 0.0650 volts.