Electric materials
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An elevator is a cyclic lifting machine designed for vertical lifting of people and goods. By purpose, elevators are divided into passenger,...
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Dynamic braking is used to quickly and precisely stop the engine. The dynamic motor brake circuit with description of operation...
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When installing the lighting device, for safety reasons, it must be remembered that the neutral wire must be connected...
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Externally, the welding and soldering processes are very similar to each other. The main difference between soldering is the lack of melting of the...
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Soldering, as one of the technologies for forming permanent joints, is a unique way to connect a wide variety of materials-metals,...
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