36 W fluorescent lamp: luminous flux, advantages and disadvantages. Color rendering of 36 watt fluorescent lamps. Design features and technical parameters of 36W fluorescent lamps. In what places it is better to use lamps with cold light.

Supply of electricity to the house underground: for a private house and cottage, types of cable. How to get permission for underground input of electricity. Why it is dangerous to connect an electrician with an underground cable: weaknesses and vulnerabilities.

How to fix the light switch: the repair procedure, the causes of malfunctions. How to repair a light switch if it is not pressed. Repair procedure and safety precautions. Signs of damage to the light switches.

Voltage rectifier: classification, application, rectifier circuit. How does the rectifier work and what is it intended for. Basic relationships for the rectifier. Semiconductor rectifier circuits.

Fluorescent lamp: advantages and differences from LED, marking. What advantage do fluorescent lamps have over incandescent lamps. Color temperature of fluorescent lamps. Safety and disposal of fluorescent lamps.

Bipolar machine: features and purpose. Connection diagram of a two-pole circuit breaker in a single-phase network. What is the difference between a single-pole machine and a two-pole machine. Advantages and disadvantages of a bipolar machine.

DC generator: what it consists of, types, circuit and purpose. Power and efficiency of DC generators. Why it is necessary to use direct current generators in a private house.

How to connect the machine to the meter in the apartment: step by step instructions. Scheme of connecting machines in the apartment after the counter. Features of connecting machines after a three-phase electricity meter.

Socket with grounding: where applicable and connection features. How to distinguish a socket with grounding and without. Why do you need grounding in the outlet. How to connect a ground outlet: if there is no ground wire.

Batch switch: wiring diagram and modern analogues. What is a packet switch and its purpose. Design and characteristics of the batch switch. Pros and cons of bags.

PEN conductor: description, separation order and typical installation errors. Why it is impossible to separate the PEN conductor in a floor board in an apartment building. Features of the separation of the PEN conductor at the entrance to a private house.