The NEC defines a controller in a few different ways. In Art. 100, a controller is described as “a device or group of devices that serves to govern, in some predetermined manner, the electric power ...
During manufacture and assembly of products, there is a wide range of testing and inspection carried out to ensure the materials and items satisfy their specifications or are fit for the required ...
Magnets and magnetic fields have become increasingly common in modern technical products, appliances, automotive, and industrial products and systems. Factors such as the continuing emphasis on energy ...
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