Basic knowledge of building electrical lighting
Release time：2021-11-12
Electrical lighting is an indispensable part of the building and an important part of the building installation project. The quality of lighting directly affects people's production, life, work and learning. The factors that measure the quality of lighting include illumination uniformity, illuminance rationality, glare, color rendering of the light source, and the stability of illumination. These are primarily secured by design. In the following, we will focus on the basics related to budgeting.
First, the lighting mode
Lighting is divided into two categories: normal lighting and accident lighting. Normal lighting is the lighting that meets the needs of general production and life. Lighting that continues to work and enables the safe passage of people in the event of a sudden power outage or interruption of normal lighting is called accident lighting, also known as emergency lighting.
2. Electric light sources and lamps
An electric light source is a device that converts electrical energy into light energy. Commonly used electric light sources include incandescent lamps, fluorescent lamps, waterproof and moisture-proof lamps, etc.
Luminaires, even if the light emitted by the light source is redistributed. Lamps and lanterns also have the role of fixing the light source, protecting the light source, and decorating and beautifying the building.
3. Commonly used installation methods for lamps and lanterns
1) Ceiling type: The lighting fixture is directly installed on the ceiling, which is called ceiling type. In order to prevent glare, opalescent glass ceiling lamps and opalescent plastic ceiling lamps are commonly used.
2) Embedded: The installation method of embedding lighting fixtures into the ceiling is called embedded. Rooms with suspended ceilings are often recessed, such as spotlights, downlights, etc.
3) Hanging type: The way to hang the lamp from the ceiling with soft wires, chains, pipes, etc., is called hanging type. This method is more common in office buildings with higher floors.
4) Wall-mounted: Installing lighting fixtures directly on the wall with a bracket is called wall-mounted. Wall-mounted lighting fixtures are mainly used for decoration, and also serve as local lighting, which is a kind of auxiliary lighting. Accident lighting is also mostly installed in this way, such as accident emergency lighting, safety exit lights, evacuation indicators, etc.
Fourth, the installation height of the lamp
In order to limit glare, it is necessary to correctly select the installation height of the luminaire, which is determined by the design and marked in the construction drawing.
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This article is not original, it is a translation. The original link can be found here [1]. Recently, I happened to be quite interested in lighting. When I was researching, I saw this article and thought it was pretty good. By the way, I will translate it.
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