Welcome to the captivating world of the RU-vid channel created by Dmitry Makarov, an accomplished electrical engineer, and Yury Makarov, an esteemed automation engineer. This channel serves as a digital sanctuary for all enthusiasts and novices alike, delving into the intricacies of electrical installation, electrical equipment, and the fundamentals of electrical wiring.
With their combined expertise and passion for the field, Dmitry and Yuri offer an engaging and enlightening experience for viewers seeking to expand their knowledge in the realm of electrical engineering. As consummate professionals, they bring a wealth of practical experience and theoretical understanding to every video they create, ensuring that their content is both informative and accessible.
The channel serves as an invaluable resource for individuals embarking on electrical projects, whether they be residential, commercial, or industrial in nature.
That's right. That's what they teach you in school. But still, there are a lot of people searching Google to convert millimeters to meters. That's why I made this video.
I really appreciate you posting this vid, I watched it a couple of times right before the office folks headed over to the training barn here at work to look at an actual SwitchGear. Thanks!!!
Could you please explain the difference between TN-C and TN-C-S? I already understand the latter, since the US uses it with a slight variation: the neutral is grounded not only at the transformer (a single-point-earthed-neutral TN-C-S system, but also at the house of each customer (a multi-point-earthed-neutral TN-C-S system). But I don’t see the difference between the two types of earthing systems. Both ground the neutral at the transformer. Both connect the neutral wire to normally-noncurrent-carrying conductive (metallic) parts at each customer, meaning the neutral and ground wires are combined before the customer but separated when entering each customer house.
In TN-C the wire is common all the way to the socket. There is no separate ground wire. On the US thus is known as a bootleg ground and is not legal. It was previously used in some countries like Germany, Switzerland and Finland but was banned in the 70s and 80s on new installations. I Don a it still is legal for converting old ungrounded sockets. The greatest risk in TN-C is that the connection is done to the wrong wire and the case becomes energized. I the past the color use was not consistent. Wires could even have the same color.
