Electricity project for a private house 15 kW 3 phases: single-line circuit board. The difference between a three-phase electrical connection from a single-phase for a private house. In what cases can I connect an electrician to the house without a project.

Grounding of the cable armor on both sides of the PUE: indoors, the purpose of grounding. What are the features of grounding of armored cables. How to ground the armor of a cable laid in the ground or cable structure.

How many spotlights do you need per room: 16 meters, generally accepted standards. How to calculate the required number of fixtures in a suspended ceiling, depending on the area of ​​the room. What you need to consider when calculating the number of spotlights on the ceiling.

Inductive sensor: non-contact, test procedure and technical parameters. Ways to use inductive sensors. Advantages and disadvantages of using inductive sensors. Color marking of findings.

DRL lamp: decryption, connection via a choke, LED analogues. Design features and principle of operation of DRL lamps. Where high-pressure mercury discharge lamps are used. Is their use safe?

Scheme of connecting a time relay: to a magnetic starter, step by step instructions. How the time relay works and works. Connection diagram of time relay and contactor. Scope of the timer in lighting control.

Bus of additional equalization of potentials (ШДУП): description and varieties. What is equalization of potentials and why is it necessary in electrical networks. Varieties of tires for equalizing potentials.

The scheme of the device for LED strip 12V: power per meter, types and polarity. Areas of application for 12V LED strips. Design features of LED strips on 12V. Elements of LED strip.

Terminal blocks for connecting wires: requirements and varieties. Advantages and disadvantages of connecting wires to terminals. How to choose the terminals for the wires. Which terminals for connecting wires are better to use.

Screw clamps for wires: order of connection of wires and scope. Features of the use of branch and piercing clamps for wires. Design features of wedge clamps. How to connect stranded wires using clamps.

Street lamp: the distance between the lamps and the choice of energy-saving lamps. How to choose street lamps on poles for a summer residence. How to manage power on outdoor lights. Criteria for the selection of lamps for lighting house areas.