What is bypass in a voltage regulator: wiring diagram and varieties. Scheme of external single-phase and three-phase bypass to the voltage regulator. Reasons for using bypass. Using bypass in practice

Which voltage regulator is better: relay or electromechanical. Criteria for choosing a voltage stabilizer for the home. Rating voltage stabilizer 220V for home. Criteria for choosing a voltage stabilizer.

PUE grounding and protective electrical safety measures: terms and definitions. General requirements for protection against direct and indirect contact. Grounding devices and conductors. Scope of grounding according to PUE.

Current leakage: protection, danger, signs, causes and remedies. What is a leakage current. How to independently detect a leakage of current in the apartment. Consequences of current leaks for household appliances.

Mercury 201 meter connection diagram: design features and installation methods. Connection of wiring to the meter Mercury 201 through the machine. Basic requirements for installing meters Mercury 201.

LED lighting: options for different rooms, ceiling, ideas in the interior. Pros and cons of LED backlighting. How to choose the right LED strip for lighting. Features of planning LED ceiling lighting in the apartment.

Power surge: causes, fixation, consequences and methods of protection. How to recover damage from power surges. How to deal with power surges in an apartment or private house.

Loop phase zero: what it is and why it should be checked. PUE verification requirements for phase zero loop. How often do you need to check the loop of the phase-zero circuit. How to measure the short circuit current of a loop phase zero.

LED Downlight: Ceiling, linear, overhead and recessed. How to choose a LED lamp for home lighting. What parameters should be considered when buying an LED lamp.

Electricity quality: who can check tolerances. What affects the quality of electrical energy. What are the consequences of the deviation of the electricians from the normative parameters for household electrical appliances.

Types of lighting lamps: marking, a brief overview, the pros and cons of various types. What kind of light lamps are best suited for lighting residential premises in the house. What characteristics should be considered when choosing lamps for the home.