Photo relay for outdoor work This is a device with a special built-in photosensor, the task of which is
1.7.139 Connections and connections of grounding, protective conductors and conductors of the equalization and potential equalization system
Diagram and description Somehow recently I came across a diagram of a very simple block on the Internet
Reading diagrams is impossible without knowledge of the conventional graphic and letter designations of the elements. Most of them
Along with pieces of amber electrified by friction, permanent magnets were the first material material for ancient people.
Operating principle The diagram shows the operating principle of the device. Photoresistor PR1 decreases with increasing illumination
Moreover, they are universal and allow you to install not only infrared, but also devices of any
How does a microwave oven work? To make it much easier to troubleshoot problems found in your oven, you should
The purpose of calculating protective grounding The grounding device installed on the consumer side is intended to protect
Voltage sags can cause serious problems such as disruption of production processes and
