Protective equipment against electric shock: safety measures. How an electric current can affect the human body. Fixed and additional funds. Personal protective equipment against electric current.

How to connect a double switch: switch device, drawing and materials for connection. Circuit diagrams for opening a two-gang switch for two bulbs. Pros and cons of dual connectivity.

How to connect a switch: design and purpose, types of fittings. Features of a single-key light switch with a single bulb. How to separate wires for connecting a switch with one key.

3-point through-switch circuit diagram: installation features. The principle of operation of the through two- or three-button three-point switch. Where is the three-switch system used?

Electric switches: multi-contact, scope and variety. What is the difference between a passage switch and a cross switch. Can I use the switch as a switch. What is the difference between a switch and a switch.

Do-it-yourself phytolamp: tape, diagram, assembly order and requirements. How to correctly calculate the required number of phytolamps for seedlings. The difference between phytolamps and fluorescent lamps. How to choose an LED strip for a phyto-lamp.

Corner sockets for the kitchen: what it is and where they are used. Rules for placing a block of corner outlets in the kitchen. How many corner outlets need to be installed in the kitchen. Connection diagram for corner outlets.

Electric cartridge: varieties, purpose and features, marking. How to connect a bulb holder with wires. How to unscrew the cartridge if the bulb burst. The procedure for replacing the cartridge in the chandelier or lamp.

What is the difference between grounding and grounding: concepts, advantages and disadvantages. Schemes of protective grounding and grounding of electrical appliances. Why do you need grounding and grounding. Do I need to do the grounding in the apartment.

Current stabilizer on the LM317: basic electrical parameters. The power supply circuit on the LM317 with adjustable current and voltage. Examples of application of the linear adjustable stabilizer LM317. Power dissipation and input voltage of the device.

The wiring diagram in the apartment: examples of typical schemes. How to draw a diagram for wiring in a one or two bedroom apartment. Features of the circuit for electrical wiring in the apartment in rooms with high humidity.