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From this article you will learn what a fire safety zone class is, what

Hello! While home lighting fixtures are familiar to almost everyone, few people are interested in street lighting fixtures.

General recommendations: block connection diagram It is worth keeping in mind that the electrical connection diagrams for the air conditioner

Elevator passenger Elevator is a lifting and transport device that transports elevator passengers or cargo in a vertical

Since the appearance of the first fire extinguishers (19th century), their design and composition have undergone significant changes,

The main requirements for office lighting: soft light, flexibility in use and a pleasant color spectrum.

Lumens The light emitted by a source is called “luminous flux” and is measured in lumens (Lm). Manufacturers, for

Purpose of the short circuiter and separator Let us briefly describe what each of the switching devices is intended for: Main

Power in an alternating current circuit Within an alternating current circuit, three types of power are distinguished: active

What is illumination? Illumination is a luminous quantity that is equal to the ratio of light incident on the surface