How does the electrical tester work? Why we didn’t shock by electricity passes through the tester ?

preview_player
Показать описание


How the electrical tester light works?
We know that any single phase device, needs a voltage difference between its terminals to be ON.
But with the tester, it is connected to the line from one side, and from the other side my finger, and even I wore an insulated shoes, the lamp light up.
It looks like the circuit was broken by the insulated shoes.
And if the circuit completed, why I didn’t get chocked by electricity.
To start, we need to know what is inside the tester,
Inside the tester you will find the neon lamp, connected with a very high ohm resistance.
Now we see the light is ON.
Let we draw the circuit.
The AC source.
The high ohm resistance.
The lamp.
Your body will be presented as a resistance.
The insolated shoes as a dielectric material, between two conductors.
Then the ground,
So the circuit is completed, and because of that the lamp will light up each time used on a live wire or outlet.
The internal high ohm resistance of the tester, limiting the current passing through the lamp and your body too.
In our circuit, all are connected in series.
That will make the voltage to be divided and will limit the current.
So with that limited current, you won’t be chocked, nor even feel the current passing through your body.

#troubleshooting #Maintenance #Electrical #electricity #engineering
Рекомендации по теме
Комментарии
Автор

The most dangerous thing in the world?
My daddy saw me with a nail playing with sockets and ran towards me to save me. he traded the nail with one of those. That thing you call neon tester here is called phase meter and is a life saver.

hosseinebrahimi
Автор

I always use tester during my experiments and I feel a little bit of current on my fingertip. It's not enough to shock me, but still I can feel it.

kaifrahman
Автор

I don´t think we complete the circuit with the ground. I even tried it with rubber shoes on top of a plastic chair on top of a wooden floor and it works. I think the body itself is capable of absorbing a certain amount of electrons, enough to make the neon bulb. light

haroldbarber
Автор

I used this last time and i thought the tester is broken 🤣 so now i know that u need to touch the metal in the handle 🤣🤣🤣

jemilarde
Автор

Will this pen still work if I stand in a bucket of water barefoot while I do it.
I heard that if I stand in water I won't burst into flames

jamesgallagher
Автор

why the insulated shoes is represented as capacitor?

afrianrahmad
Автор

Test on "pin" head charger is light on. Does it mean current leakage?

SKSK-xezu
Автор

What if i am 10000feet above ground and there is no way for capacitance to form with 220Volt, will it glow?

exnozgaming
Автор

Why we put index finger on tester? Why not middle finger n thumb?

fariyafatemaqazi
Автор

im still confused about this thing.. how does earth, something that is usually not even required to light up a bulb, lights a bulb in the test pen?

jamesnike
Автор

How about if suddenly there is thunder ⚡ shoot at house electric wire and at the same time , I am touching the test pen and insert into socket Life hole .


Then the electric current Ampere which pass thru my body, will be higher, then my body will be hurt by high current .

Am I correct ?

koreakorea
Автор

why in case of test insulation transformer the tester glow. thank you

mohammadzaiter
Автор

I heard my teacher said Neon tester can’t be used in long term. It can damage organs.
Is it real or just a myst??

theycallmeviix
Автор

but we have shoes as insulation which is an obstacle for the earth.

muhdannas
Автор

Then y people says using slippers protect from electric shock

tharunragumar
Автор

Oh no..electricity is hard to imigination

nobietrader
Автор

English mein samjh nahi aaya chalo Hindi video dekhta hun

BhaktiOfShiva