Which cable to buy for a video surveillance system - types and main characteristics.
Coaxial cable RK-75-1.5-11 RK-75-2-11 RK75-4-11 Coaxial cable boasts the widest distribution and popularity.
What frequency of inspections of switchgear equipment without disconnecting from the network is indicated incorrectly?
Inspection of substations equipment INSTRUCTIONS ON THE PROCEDURE FOR INSPECTIONS OF SUBSTATION EQUIPMENT I. Inspection procedure
How many volts can a 18650 battery be discharged to?
It is difficult to find an area where there are no devices running on electrical energy. Mobile sources represent batteries
Simple presence sensor
Description of types of presence sensors and how to make them yourself
General description A presence sensor in a simplified form is a special wave detector that detects movements
transformer winding system
Characteristics and circuits for automatic switching of transformer windings in the power supply
As part of any measuring complex available in a modern laboratory or at a radio amateur’s workplace,
basic means of protection in electrical installations up to 1000V
Basic protective equipment up to 1000 volts. Insulating electrical protective equipment
Classification of protective equipment Electrical protective equipment refers to devices, devices, fixtures and devices that serve to protect
UPS malfunctions and causes of their occurrence: crackling, squeaking, overheating. Error codes and possible breakdowns – Alfa Balt Engineering
Causes of UPS malfunction During operation, uninterruptible power supplies may suffer due to overload, insufficient
Preparing for electrical installation
DIY wiring in the attic
Requirements for electrical installation of attic wiring and other types of attic space. Attic space can be
Procedure for cleaning up fragments containing mercury vapor
An energy-saving light bulb breaks - what to do?
When is a lamp dangerous to life and health? Energy-saving compact fluorescent lamps contain
film capacitors
Film capacitor: what is it and what are its types?
The ancestors of capacitors can be considered a German minister of the Catholic Church named Ewald Jürgen von Kleist
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