Cable connectors and aluminium castings

The theme of today's broadcast is a security installation, light sources and motors and sand casting. Recently, we like to deal with technical curiosities. Well, such are the needs of our aluminium castings students. We will explain these terms and answer all your most interesting solutions in this area. Security for the electrical system have been used since the electricity started to be used in industrial equipment and equipment for everyday use. Security installations are struck prevent electric shock, which can be very dangerous for human health. They provide the prevention of electric shock by double insulation, drain current to ground through a protective conductor, cnc machining, clearing the human body, the interruption of power supply to the device or cnc machining, which was a defect. The second part of our meeting is to be devoted to the question, what are the sources of light. Light sources for domestic use can generally be divided into two types: light bulbs and fluorescent lights. They differ among themselves runtime, performance, color of light and of course price. Bulbs can be divided into traditional and halogen. The same applies in the case of fluorescent lamps. Fluorescent tubes and divided into two groups. And now a few interesting facts from theme engines and sand casting. Apparently, when you put the cord through which electric connectors current flows near the magnet is observe when you power on the magnet changes its position as aluminium castings. In the year one thousand eight hundred twenty-first scientist Faraday, using this effect, constructed a simple device in which the guide, through which flowed the current, moving in a magnetic field of a permanent magnet. This device had no practical application, but it became the nucleus of today's electric motors? so developed engines. Modern electric connectors use a strong electromagnet coils, and many of the guide, which allows you to produce a useful mechanical force. During experiment, moving the magnet inside the copper line. He showed that the electricity produced is the same if you move around a magnet guide. This finding is used in contemporary, modern sand casting (generators have originated here) which produce usable electricity supplied to our homes, shops, offices. The same man who invented the first electric motors, generators and invented. It was a very brilliant physicist-researcher in aluminium castings.