Street lamps for a country house: examples of outdoor lighting calculations. Rules for the selection of lamps for street lighting. Classification of street lights by type of lamp: advantages and disadvantages.

The principle of operation of the electric meter: pulse, induction and three-phase. How is the electricity meter arranged and what does it consist of? Schematic diagram of electricity meters.

Wiring on the ceiling in the apartment: installation procedure and common mistakes. Features of wiring under a stretch ceiling. Junction boxes for ceiling wiring. How to fix electrical wiring on the ceiling.

Kembriki for wires: what is it used for and how to use it correctly. Advantages and disadvantages of heat-resistant cambric for insulation of wire connections. What is better to choose a heat-shrinkable tube or cambric of their PVC.

Cross switch: description and where used. Characteristics and connection diagram of the cross circuit breaker. The principle of operation and function of cross-circuit breakers. The procedure for installing the cross switch.

Electricity meter in the socket: features and specifications of the device. Sockets with built-in energy metering. The principle of operation of a portable device for metering electrical energy.

Illuminated switch: features for mounting one- and two-key switches. Circuit breaker with LED backlight. How to make the backlight of the switch with a DIY LED. How to install a backlit switch correctly.

Three-key switch with a socket in one case: connection features. Types of three-key switches with a socket. How to disassemble and change the triple switch with a socket. Typical installation errors.

Circuit breaker: types and purpose, testing, marking. The device and principle of operation of a circuit breaker. Marking and characteristics of circuit breakers.

Zero wire: operating principle, purpose, designation, differences from a phase wire. Modes of operation of neutral electrical networks. Connecting receivers with a star to a neutral wire. Three-phase network with isolated neutral.

Box for installing sockets and switches for hidden wiring: varieties and device. Installing a new outlet box in place of the old one. How to choose a box for sockets or switches.