Free electric lighting in the utility room
Many people strive to get something for free, for free or at minimal cost. The question of freebies has always interested our man. The notion that free cheese is only in a mousetrap is not an argument and there are people who even prove the opposite. I came across videos where the authors show how you can get free electricity. Let it not be of great power, but still - at least for lighting and lighting the cellar, a section of the summer cottage path.
The author of the video (which I will give below) made grounding: he drove a metal meter pin into the ground. I securely screwed a thick wire to it, which goes to the utility room where the lighting is planned. He also brought "zero" from the wiring into this room (he found "zero" with an indicator screwdriver).
In this frame, he shows that there is a voltage between zero and ground. Approximately 3 V. Slightly changes, but this is not surprising. The explanation will be below. Because lighting is planned with a standard 220V LED lamp, then the author decided to raise this voltage.
It would be possible not to raise the voltage, but to power the LED matrix or disassemble the lamp and connect them directly without a driver.
To do this, he used a small transformer converting 220 V to 3 V. But when the load is connected, the voltage sags greatly and the lamp glows at a quarter of the incandescence. The transformer issued 93 V.
Next, the author used a voltage multiplier made according to this circuit to raise the voltage further.
And with such a circuit, the voltage rose to 223 V and the LED lamp began to glow more intensely. Not at full heat, because there is still a drawdown. But it is enough for the author to illuminate a small room.
The question immediately arises: is such a connection legal? At first glance, it does not remove anything from the wiring phase, it uses only the potential difference that exists between zero and ground. I suggest reading the comments that viewers made under his video, and then watch the video itself:
Most likely, the author managed to extract the voltage between zero and ground due to the fact that all the current from the surrounding consumers does not have time to drain to the ground through zero. In the city, the grounding loops are of better quality and the distance to them is shorter. Such a scheme will not work.
I suggest watching the video and expressing your opinion:
The second video, which says that in addition to the voltage itself, there are pickups from electromagnetic fields in the wiring wires:
The author used the Avramenko fork scheme in his design. This circuit, not having a galvanic connection with the 220V network, collects high-frequency interference from the wires of the power network and converts them into a constant voltage (up to 3.5 V).
I remember from school that the mains wires can be used as an antenna if you connect the detector receiver through a 40 picofarad capacitor. A capacitor with such a capacity cuts off the power frequency of 50 Hz and transfers all the noise from the wires to the device.
But it's better to watch the video itself and make sure that the circuit works:
This 3.5V can also be used to illuminate a room with a small LED lamp.
But the second side of this topic: is it worth it to create it because of the savings of a few rubles? If only for the fact to make sure of such an opportunity and personal creative self-realization.
The information in the article is informative and does not prompt you to take any action. I invite experts to express themselves in the comments.
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